MINING PROCESSING CHEMICAL

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CTCC-csca
The flotation chemical product line is a very important product line extension to our agricultural chemicals because the dithiophosphate phosphorus-sulphur chemistries are quite complementary to the agriculture chemicals, which are also phosphorus and sulphur based.

CTCC-csca uses the latest process technologies, process flowsheets and methods that maximize process control in producing the industry’s leading quality products and to effectively manage production costs, particularly our mining flotation reagent line. All our products are produced in ‘reactor trains’, which is a series of reaction vessels that are monitored and controlled by the latest computer technologies.

The continuous production processes, which are closely supervised by operators to maintain constant production flow and consistently high product quality, are state of the art. Well trained and competent personnel operate these plants. Crown-chem’ s operators must complete a full two-year training programme before being allowed to independently operate the plant. The result: industry leading quality products that have the highest activity levels with minimum unreacted raw materials

In order to provide a full complement of flotation reagent products, Crown-chem also supplies some frothers.

A wide range of flotation dithiophosphate reagents are produced in acid and aqueous solution forms, the latter using sodium, potassium or ammonium hydroxide for neutralization. To ensure our products provide the best possible mineral processing circuit performance, we have developed dithiophosphate mixtures and mixtures of dithiophosphates with mercaptobenzothiazole and thionocarbamates that have been developed and

tailored for the rigorous needs of the mining industry. Due to Crown-chem’ s process flexibility, products can be tailored to our customers’ process requirements.

In order to provide a full complement of flotation reagent products, Crown-chem also supplies a full range of xanthates and some frothers.

Flotation has become a very selective and highly cost efficient process and has become a universally used means for concentrating all types of ores. For sulphide ores, flotation is particularly important.

The drive to improve mineral flotation technology continues today with better technical understanding and application of new flotation reagent chemistries, equipment and control strategies.

History

Many important chemical discoveries were made during the latter half of the 19th century; one of the most important for our industry was the 1860 discovery that minerals have different water wettability characteristics and, subsequently, that minerals can be made hydrophobic by chemical means. Commercial application of this discovery did not occur until 1906, when the froth flotation process was patented and subsequently became the focus of significant litigation that often befalls great ideas.

“Oil flotation” became the cornerstone of mineral flotation, as we know it today, with the actual process of froth flotation under continuous development over the next century. With declining availability of the rich, easy to process ore bodies by using hand sorting, sizing and gravity circuits, development and adoption of flotation has allowed the mining industry to supply great amounts of valuable metals and metals required by industry and our societies. As a mineral beneficiation unit operation, flotation has become without a doubt the most important means for recovering and upgrading ore values.

Rapid transformation and development of flotation technology occurred when researchers studied particle surface chemistries. Understanding particle-water interfacial chemistries, mineral hydrophobicity and ways to effectively modify the particle surfaces lead to significantly increased mineral recoveries and separations for an increasingly broad range of mineral systems. Chemical collectors began supplanting flotation oils in the 1920’s when enhanced sulphide mineral capabilities of thiocarbanilid and xanthates were identified.

The discovery that organic dithiophosphates and xanthates are very effective sulphide mineral collectors was a landmark development, making recovery of metals from low grade and complex ores efficient and effective. Continued reagent development efforts resulted in commercial use of other collectors including thionocarbamates, thiocarbamate, mercaptobenzothiazole, thiophosphate and xanthogen formate chemistries further advanced flotation technological capabilities to meet the beneficiation challenges of leaner, more complex ores.
Flotation has become a very selective and highly cost efficient process and has become a universally used means for concentrating all types of ores. For sulphide ores, flotation is particularly important. The drive to improve mineral flotation technology continues today with better technical understanding and application of new flotation reagent chemistries, equipment and control strategies.

CTCC-csca Riyadh, developed and evaluate mining reagents for different applications in mining processing

Safety & Environmental

CTCC-csca recognizes our responsibility towards environmental protection and resource sustainability.
This policy is particularly important in a country renowned for its focus and emphasis on a clean and safe environment. We believe that expenditures made toward betterment of our environment are an investment rather than a cost. Therefore, Crwon-chem has taken up the challenge posed by the society and has invested large sums in protecting the environment.

In the development of production processes and design of plants, we do everything possible to minimize the quantities of waste products by recycling or by reuse in other processes.
Wastewater, containing large quantities of phosphorous material, is treated in a special biological wastewater treatment plant. Crwon-chem is on a continuous quest to improve our environmental control and minimization technologies and adapt to new, increasingly difficult, challenges. However,
we strongly believe that our investments in environmental protection have provided us with a unique know-how and thus a competitive advantage.

Products

A wide range of flotation dithiophosphate reagents are produced in acid and aqueous solution forms, the latter using sodium, potassium or ammonium hydroxide for neutralization. To ensure our products provide the best possible mineral processing circuit performance, we have developed dithiophosphate mixtures and mixtures of dithiophosphates with mercaptobenzothiazole and thionocarbamates that have been developed and

tailored for the rigorous needs of the mining industry. Due to CTCC-csca’ s process flexibility, products can be tailored to our customers’ process requirements.
In order to provide a full complement of flotation reagent products, CUC-chem also supplies a full range of xanthates and some frothers.

DITHIOPHOSPHATES:

Mine-float™ 067 mineral collector

Mine-float 067 is a water soluble salt of aryl dithiophosphoric acid.

Mine-float 067 has a light frothing characteristic and is especially useful where a fast, selective and active collector is required and no conditioning of the collector with pulp is possible.

The dosage of Mine-float 067 is wide and varies with the type of ore, usually falling within the range of 10 to 100 grams per metric ton ore.

Mine-float 067 can be added undiluted or preferably diluted with clear water to 5-20 % solutions. It is good practice to stir before use.

Experience has shown that Mine-float 067 is effective in the pH range of 4-12.

Composition

Chemical name: cresyl-dtp-NH4
CAS name: Phosphorodithioic acid, O,O-bis(methyl-phenyl) ester, ammonium salt
Active ingredient: 49-51% by weight
Physical properties

Appearance: Reddish brown to black
Form: Liquid (aqueous solution)
Boiling point: Above 100 degrees C
Melting/freezing point: Minus 1 to minus 5 degrees
Specific gravity: C 1.14 g/ml
Flash point: None

Safety and handling

Mine-float flotation collectors are manufactured under carefully controlled conditions. However, to varying degrees they can be considered harmful or toxic, and therefore before handling this product always carefully read and understand the MSDS for this product.

Mine-float 067 contains 4-8% cresols, and cresols

• may be fatal if inhaled, swallowed or adsorbed through skin
• cause burns
• are extremely destructive to tissue of the mucous membranes and upper respiratory tract, eyes and skin.

Safe handling includes the use of safety glasses, natural rubber gloves and protective clothing. Additionally, avoid inhalation of vapours.

Mine-float™ 068 mineral collector

Mine-float 068 offers good selectivity against pyrite in sulfide flotation and can provide good to excellent flotation response to various copper minerals, including but not exclusively, chalcopyrite, bornite, chalcocite and covellite. Other applications are in the flotation of galena and copper activated sphalerite, tetrahedrite and gold ores.

The product can be used in conjunction with xanthate or as a replacement and, depending on mineralogies and flotation circuit conditions, this product may be stronger than xanthate in which case the dosage will be lower than xanthate. Mine-float 068 has frothing capabilities so often frother dosages are reduced when switching to this product.

Mine-float 068 can be fed to the circuit either undiluted or as a solution. Before deciding to dilute the product, because water chemistry can have an impact, stability tests at the solution concentration desired are highly recommended.

Mine-float 068 is used in neutral to alkaline conditions (> 6 pH). Typical dosage levels depend on ore feed grades, mineralogies and flotation responses, but typical dosage levels range between 10 to 50 grams per metric ton ore (0.020 to 0.11 lb/T).

Composition

Chemical name: Na di cresyl dithiophosphate
CAS name: Phosphorodithioic acid, O,O-bis(methyl-phenyl) ester, sodium salt
Active ingredient: 48-52%

Physical properties

Appearance: Reddish brown to black
Form: Liquid (aqueous solution)
Boiling point: Above 100 degrees C (Above 212° F)
Melting/freezing point: Minus 1 to minus 5 degrees C (30 to 23° F)
Specific gravity: 1.14 gm/ml at 20 degrees C (9.5 lb/gallon at 68° F)
Flash point: None. The flame is extinguished at 65°C (149° F) in the Pensky-Martens closed cup.

Safety and handling

Mine-float collectors are manufactured under the highest quality standards; nonetheless, these chemicals can be hazardous and harmful. Therefore, always read and understand the MSDS before handling the product.

Safe handling includes use of safety glasses, splash shield over face, natural rubber gloves and protective clothing. Additionally, avoid inhalation of vapours.

Cuca-float™ 070 mineral collector

Mine-float 070 is an aryl dithiophosphoric acid.

Mine-float 070 has strong frothing properties. It is a quite powerful collector and especially in acid or neutral circuits a non-selective product for all sulphides. In alkaline environments, Mine-float 070 is useful for the flotation of copper, silver, gold, lead and zinc sulphides, as in general it does not float pyrite at high pH. Many operators have found that Mine-float 070 together with an alkyl dithiophosphate or a xanthate are the best combinations for optimum grade and recovery. Because of the limited water solubility,

Mine-float 070 should be added to the grinding circuit or the conditioner.

The dosage of Mine-float 070 is wide and varies with the type of ore, usually falling within the range of 10 to 100 grams per metric ton ore.

Mine-float 070 should be used undiluted.

Experience has shown that Mine-float 070 is effective in the pH range of 4-12.

Composition

Chemical name: cresyl-dtp
CAS name: Phosphorodithioic acid, O,O-bis(methyl-phenyl) ester
Active ingredient: 70-80% by weight

Physical properties

Appearance: Black
Form: Liquid
Boiling point: Not known
Melting/freezing point: Not known
Specific gravity: 1.2 g/ml
Flash point: 111.5 degrees C

Safety and handling

always carefully read and understand the MSDS for this product.

Mine-float 070 contains 5-10% cresols, and cresols

• may be fatal if inhaled, swallowed or adsorbed through skin
• cause burns
• are extremely destructive to tissue of the mucous membranes and upper respiratory tract, eyes and skin.

Safe handling includes the use of safety glasses, natural rubber gloves and protective clothing. Additionally, avoid inhalation of vapours.

Mine-float™ 123 mineral collector

Mine-float 123 is the most selective collector in the Mine-float dithiophosphate range. It has no frothing characteristics. Being a selective reagent Mine-float 123 is useful as a rougher collector producing a high grade first concentrate. For optimum recovery a scavenger collector, e.g. a stronger dithiophosphate or a xanthate in conjunction with Mine-float 123 is used.

Mine-float 123 is very selective towards pyrite and other iron sulphides and is therefore used in the flotation of copper sulphide mineral and Cu-activated sphalerite, particularly in the presence of pyrite. It does not float lead sulphide.
The collector being a selective reagent is applicable on easy floating liberated copper sulphide like Skim-Air flotation in the grinding circuit.

Mine-Float 123 can be added undiluted or preferably diluted with clear water to 5-20% solutions to better control the dosage. It is good practice to stir before use.

The dosage of Mine-float 123 varies with the type of ore, usually falling within the range of 20 to 100 grams per metric ton ore.

Mine-float 123 is effective in the pH range of 4 to 12. Because of its selectivity against iron sulphides, Mine-float 123 can be used at lower alkalinity than xanthates.

Composition

Chemical name: cresyl-dtp
CAS name: Phosphorodithioic acid, 0,0-diethyl ester, sodium salt
Active ingredient: 49-51% by weight

Physical properties

Appearance: Light brown
Form: Liquid (aqueous solution)
Boiling point: 104 degrees C
Freezing point: 2 degrees C
Specific gravity: 1.187 g/ml
Flash point: None

Safety and handling

Mine-float flotation collectors are manufactured under carefully controlled conditions. However, to varying degrees they can be considered harmful and therefore before handling this product always carefully read and understand the MSDS for this product. Mine-float 123 causes irritation to eyes and skin.

Safe handling includes the use of safety glasses, natural rubber gloves and protective clothing.

Storage

+ Store in a dry and well-ventilated place away from heat and sunlight after the principle “first in/first out”
+ Avoid freezing
+ Store in plastic drums or coated steel drums

Environmental impact

Mine-float 123 is biodegradable. The majority of the collector is tied up with the concentrate and is destroyed in the subsequent processing operations. The remainder is transferred to the tailings. Release into the water systems should be avoided.

Packing

Mine-float mineral collectors are supplied in tank containers or plastic drums. If preferred,

Mine-float collectors may be supplied in coated steel drums.

Tank containers              Net weight: approx. 20 MT
IBC containers                 Net weight: 1,000-1,075 kg
                                    Gross weight: approx. 1,059-1,134 kg
Drums                           Net weight: 225 kg
                                    Gross weight:
                                    approx. 235.5 kg for plastic drums
                                    approx. 247 kg for coated steel drums

Mine-float™ 233 mineral collector

Mine-float 233 is an aqueous solution of dialkyl dithiophosphate.

Mine-float 233 has little frothing properties. The main application is the flotation of zinc sulphides, e.g. sphalerite and marmatite, where the selectivity of Mine-float 233 towards pyrite is advantageous. Another application is flotation of copper sulphides. In both cases, for optimum recovery a scavenger collector is often needed.

Mine-float 233 can be added undiluted or preferably diluted with clear water to 5-20% solutions. It is good practice to stir before use.

The dosage of Mine-float 233 varies with the type of ore, usually falling within the range of 10-100 grams per metric ton ore.

Mine-float 233 is effective in the pH range of 4 to 12. floating liberated copper sulphide like Skim-Air flotation in the grinding circuit.

Composition

Chemical name: cresyl-dtp
CAS name: Phosphorodithioic acid, O,O-bis(methyl-phenyl) ester
Active ingredient: 70-80% by weight

Physical properties

Appearance: Black
Form: Liquid
Boiling point: Not known
Melting/freezing point: Not known
Specific gravity: 1.2 g/ml
Flash point: 111.5 degrees C

Safety and handling

Creative united flotation collectors are manufactured under carefully controlled conditions. However, to varying degrees they can be considered harmful or toxic, and therefore before handling this product always carefully read and understand the MSDS for this product.

Mine-float 070 contains 5-10% cresols, and cresols

• may be fatal if inhaled, swallowed or adsorbed through skin
• cause burns
• are extremely destructive to tissue of the mucous membranes and upper respiratory tract, eyes and skin.

Safe handling includes the use of safety glasses, natural rubber gloves and protective clothing. Additionally, avoid inhalation of vapours.

Storage

+ Store in a dry and well-ventilated place away from heat and sunlight after the principle “first in/first out”
+ Avoid freezing
+ Store in coated steel drums

Environmental impact

Mine-float 070 is biodegradable. The cresols in the product are readily degradable biologically. Cresols show high acute toxicity both towards fish (LC50, 96 hrs, 1-10 mg cresols per litre) and to aquatic invertebrates. The majority of the collector is, however, tied up with the concentrate and is destroyed in the subsequent processing operations. The remainder is transferred to the tailings. Release into the water systems should be avoided.

Packing

Creative United mineral collectors are supplied in tank containers or plastic drums. If preferred, Creative united float collectors may be supplied in coated steel drums.

Tank containers              Net weight: approx. 20 MT
IBC containers                 Net weight: 1,000-1,075 kg
                                    Gross weight: approx. 1,059-1,134 kg
Drums                           Net weight: 225 kg
                                    Gross weight: approx. 247 kg

Mine-float™ 245 mineral collector

Mine-float 245 is an aqueous solution of dialkyl dithiophosphate.

Mine-float 245 has practically no frothing characteristics. It is fast and compared to other thiol collectors more selective in the flotation of copper sulphides in the presence of zinc and of iron sulphides and copper-activated zinc sulphides from iron sulphides. Other applications are flotation of copper-activated iron sulphides, flotation of nickel-bearing minerals, antimony minerals, chalcocite and for improvement in the recovery of precious metals, e.g. gold, silver, platinum. Mine-float 245 floats oxide copper minerals as well as sulphide copper in a sulphide-oxide ore very well. This collector has found application in the bulk flotation of copper and cobalt minerals in conjunction with other thiol collectors, usually at neutral pH.

Mine-float 245 requires only very short conditioning time and is therefore useful for staged addition. It can be used alone or in some cases in combination with an auxiliary collector, such as xanthates.

Experience has shown that a mixture of alkyldithiophosphate and a xanthate is often better than either of these two types of collectors alone.

Mine-float 245 can be added undiluted or preferably diluted with clear water to 5-20% solutions. It is good practice to stir before use.

The dosage of Mine-float 245 is usually considerably less than for other sulphide collectors and varies with the type of ore, usually falling within the range of 10 to 50 grams per metric ton ore.

Experience has shown that Mine-float 245 is effective in the pH range of 4-12. Because of its selectivity towards iron sulphides, Mine-float 245 can be used at slightly lower pH than xanthates.

Composition

Chemical name: i-butyl-dtp-Na
CAS name: Phosphorodithioic acid, O,O-diisobutyl ester, sodium salt
Active ingredient: 49-51% by weight

Physical properties

Appearance: Light brown
Form: Liquid (aqueous solution)
Boiling point: 107 degrees C
Melting/freezing point: Minus 11 degrees C
Specific gravity: 1.13 g/ml
Flash point: None

Safety and handling

Crown- flotation collectors are manufactured under carefully controlled conditions. However, to varying degrees they can be considered harmful and therefore before handling this product always carefully read and understand the MSDS for this product. Mine-float 245 causes irritation to eyes and skin.

Safe handling includes the use of safety glasses, natural rubber gloves and protective clothing.

Storage

+ Store in a dry and well-ventilated place away from heat and sunlight after the principle “first in/first out”
+ Avoid freezing
+ Store in plastic drums or coated steel drums

Environmental impact

Mine-float 245 is biodegradable. The majority of the collector is tied up with the concentrate and is destroyed in the subsequent processing operations. The remainder is transferred to the tailings. Release into the water systems should be avoided.

Packing

Mine-float mineral collectors are supplied in tank containers or plastic drums. If preferred,

Mine-float™ 345 mineral collector

Mine-float 345 is an aqueous solution of dialkyl dithiophosphate.

Mine-float 345 has little or no frothing properties. It is a selective collector towards iron sulphides in an alkaline circuit, usually at slightly lower pH than for xanthates. The main application of this reagent is in the flotation of copper sulphides in the presence of pyrite. It is also an effective collector for gold, silver and sphalerite. In many cases a scavenger collector, e.g. small amounts of xanthate, is used. Other applications of Mine-float 345 are the flotation of metallic copper in a low lime circuit and copper oxides and copper sulphides in a mixed oxidesulphide ore.

Mine-float 345 requires only short conditioning time and is therefore useful for staged addition.

Experience has shown that a mixture of alkyldithiophosphate and a xanthate or a mixture of two dithiophosphates is often better than either of the collectors alone.

Mine-float 345 can be added undiluted or preferably diluted with clear water to 5-20% solutions. It is good practice to stir before use.

The dosage of Mine-float 345 is usually considerably less than for other sulphide collectors. It varies with the type of ore, usually falling in the range of 10 to 50 grams per metric ton ore.

Experience has shown that Mine-float 345 is effective in the pH range of 4 to 12. Because of its selectivity towards pyrite, Mine-float 345 can be used at slightly lower pH than xanthates.

Composition

Chemical name: s-butyl-dtp-Na
CAS name: Phosphorodithioic acid, 0,0-bis(1-methyl-propyl)ester, sodium salt
Active ingredient: 49-51% by weight

Physical properties

Appearance: Light brown
Form: Liquid (aqueous solution)
Boiling point: 104 degrees C
Melting/freezing point: Minus 1 to minus 3 degrees C
Specific gravity: 1.13 g/ml
Flash point: None

Safety and handling

Mine-float flotation collectors are manufactured under carefully controlled conditions. However, to varying degrees they can be considered harmful and therefore before handling this product always carefully read and understand the MSDS for this product. Mine-float 345 causes irritation to eyes and skin.

Safe handling includes the use of safety glasses, natural rubber gloves and protective clothing.

Storage

+ Store in a dry and well-ventilated place away from heat and sunlight after the principle “first in/first out”
+ Avoid freezing
+ Store in plastic drums or coated steel drums

Environmental impact

Mine-float 345 is biodegradable. The majority of the collector is tied up with the concentrate and is destroyed in the subsequent processing operations. The remainder is transferred to the tailings, Release into the water systems should be avoided.

Packing

Crown Towers chemicals -float mineral collectors are supplied in tank containers or plastic drums. If preferred, Mine-float collectors may be supplied in coated steel drums.

Tank containers              Net weight: approx. 20 MT
IBC containers                 Net weight: 1,000-1,075 kg
                                    Gross weight: approx. 1,059-1,134 kg
Drums                           Net weight: 225 kg
                                    Gross weight:
                                    approx. 235.5 kg for plastic drums
                                    approx. 247 kg for coated steel drums

Mine-float™ 468 mineral collector

Mine-float 468 is an aqueous solution of dialkyl dithiophosphates.

Mine-float 468 is practically a non-frothing collector. It is a fast collector and it requires only short conditioning time and is therefore useful for staged addition.

Mine-float 468 has found its greatest application in the flotation of gold, silver and copper ores, where selectivity towards sphalerite is particularly desired. It is rated an excellent collector in the flotation of metallics such as gold, silver and copper. Mine-float 468 is also rated an effective collector for chalcocite, bornite and covellite. If gold is liberated from sulphides and gangue,

Mine-float 468 is the most effective collector for fine gold. If gold occurs in association with pyrite and other sulphides, a supplementary collector, e.g. xanthate should be used.

mine-float 468 can be added undiluted or preferably diluted with clear water to 5-20% solutions. It is good practice to stir before use.

The dosage of Mine-float 468 varies with the type of ore, usually falling in the range of 5 to 50 grams per metric ton ore.

Mine-float 468 is effective in the pH range of 4 to 12.

Composition

Chemical name: s-butyl-dtp-Na and ethyl-dtp-Na
CAS name: Phosphorodithioic acid, O,O-bis(1-methylpropyl)ester, sodium salt and Phosphorodithioic acid, O,O-diethyl ester, sodium salt
Active ingredient: 21-24% and 21-24% by weight respectively

Physical properties

Appearance: Light brown
Form: Liquid (aqueous solution)
Boiling point: 102 degrees C
Melting/freezing point: Minus 8 to minus 10 degrees C
Specific gravity: 1.14 g/ml
Flash point: None

Safety and handling

Dithiophosphates with Sodium MBT series

Mine-Floats DTP-SMBT series

Mine-float™ 271 mineral collector

Mine-float 271 is an aqueous solution of dialkyl dithiophosphate and mercaptobenzothiazole.

Mine-float 271 has little or no frothing properties. It requires a longer conditioning time than do xanthates and for this reason is usually added to a conditioning step or in some instances to the grinding mill.

Mine-float 271 is a stronger collector than Mine-float 371. It is an excellent collector for tarnished or rapidly oxidizing ores, which are normally difficult-to-float ores. Mine-float 271 has found application in the flotation of liberated gold, partly free and partly associated with pyrite and arsenopyrite. It is rated an excellent collector in the flotation of auriferous pyrite, particularly in acid circuits. The collector floats oxidized galena well, but has a quite strong effect on sphalerite and should therefore be used with great care. Mine-float 271 should be considered as a sphalerite collector in any screening test programme. It is also an excellent collector in the flotation of copper and nickel. In many instances a scavenger collector, e.g. xanthate, is used for optimum recovery. Mine-float 271 should be considered as co-collector in the flotation of copper ores, particularly if part of the copper is oxidized or tarnished.

Mine-float 271 can be added undiluted or preferably diluted with clear water to 5-20% solutions. It is good practice to stir before use.

The dosage of Mine-float 271 varies with the type of ore, usually falling in the range of 10 to 100 grams per metric ton ore.

Experience has shown that Mine-float 271 is effective in the pH range of 3-12.

Composition

Chemical name: i-butyl-dtp-Na and MBTNa
CAS name: Phosphorodithioic acid, O,O-bis(2-methyl-propyl)ester, sodium salt
Active ingredient: 10-12% and 21-24% by weight respectively

Physical properties

Appearance: Yellow to brown
Form: Liquid (aqueous solution)
Boiling point: –
Melting/freezing point: –
Specific gravity: 1.14 g/ml
Flash point: Above 65 degrees C

Safety and handling

Crown Chem -float flotation collectors are manufactured under carefully controlled conditions. However, to varying degrees they can be considered harmful and therefore before handling this product always carefully read and understand the MSDS for this product. Mine-float 271 causes irritation to eyes and skin.

Safe handling includes the use of safety glasses, natural rubber gloves and protective clothing.

Storage

+ Store in a dry and well-ventilated place away from heat and sunlight after the principle “first in/first out”
+ Avoid freezing
+ Store in plastic drums or coated steel drums

Environmental impact

Mine-float 271 is biodegradable. LC50, 96 hrs Rainbow trout 1.8 mg/l for MBTNa. LC50, 48 hrs Daphnia magna 19 mg/l for MBTNa. The majority of the collector is tied up with the concentrate and is destroyed in subsequent processing operations. The remainder is transferred to the tailings. Release into the water systems should be avoided.

Packing

Creative United-float mineral collectors are supplied in tank containers or plastic drums. If preferred, Mine-float collectors may be supplied in coated steel drums.

Tank containers              Net weight: approx. 20 MT
IBC containers                 Net weight: 1,000-1,075 kg
                                    Gross weight: approx. 1,059-1,134 kg
Drums                           Net weight: 225 kg
                                    Gross weight:
                                    approx. 235.5 kg for plastic drums
                                    approx. 247 kg for coated steel drums

Mine-float™ 571 mineral collector

Mine-float 571 is an aqueous solution of dialkyl dithiophosphate and mercaptobenzothiazole.

Mine-float 571 has little or no frothing properties. It requires a longer conditioning time than do xanthates and for this reason is usually added to a conditioning step or in some instances to the grinding mill.

Mine-float 571 is a stronger collector than Mine-float 271 and forms more froth. It is an excellent collector for tarnished or
rapidly oxidizing ores, which are normally difficult-to-float ores. Mine-float 571 has found application in the flotation of liberated gold, partly free and partly associated with pyrite and arsenopyrite. It is rated an excellent collector in the flotation of auriferous pyrite, particularly in acid circuits. The collector floats oxidized galena well, but has a quite strong effect on sphalerite and should therefore be used with great care.

Mine-float 571 should be considered as a sphalerite collector in any screening test programme. It is also an excellent collector in the flotation of copper and nickel. In many instances a scavenger collector,
e.g. xanthate, is used for optimum recovery. Mine-float 571 should be considered as co-collector in the flotation of copper ores, particularly if part of the copper is oxidized or tarnished.

Mine-float 571 can be added undiluted or preferably diluted with clear water to 5-20% solutions. It is good practice to stir before use.

The dosage of Mine-float 571 varies with the type of ore, usually falling in the range of 10 to 100 grams per metric ton ore.

Experience has shown that Mine-float 571 is effective in the pH range of 3-12.

Composition

Chemical name: i-butyl-dtp-Na and MBTNa
CAS name: Phosphorodithioic acid, 0,0-bis(2-methyl-propyl)ester, sodium salt and 2(3H)-Benzothiazolethione, sodium salt
Active ingredient: 21-24% and 10-12% by weight respectively

Physical properties

Appearance: Yellow to brown
Form: Liquid (aqueous solution)
Boiling point: 102 degrees C
Melting/freezing point: Minus 6 to minus 7 degrees C
Specific gravity: 1.118 g/ml at 25 degrees C
Flash point: Above 65 degrees C

Safety and handling

irritation to eyes and skin.

Safe handling includes the use of safety glasses, natural rubber gloves and protective clothing.

Storage

+ Store in a dry and well-ventilated place away from heat and sunlight after the principle “first in/first out”
+ Avoid freezing
+ Store in plastic drums or coated steel drums

Environmental impact

Mine-float 571 is biodegradable. LC50, 96 hrs Rainbow trout 1.8 mg/l for MBTNa. LC50, 48 hrs Daphnia magna 19 mg/I for MBTNa. The majority of the collector is tied up with the concentrate and is destroyed in subsequent processing operations. The remainder is transferred to the tailings.
Release into the water systems should be avoided.

Packing

Mine-float mineral collectors are supplied in tank containers or plastic drums. If preferred, Mine-float collectors may be supplied in coated steel drums.

Tank containers              Net weight: approx. 20 MT
IBC containers                 Net weight: 1,000-1,075 kg
                                    Gross weight: approx. 1,059-1,134 kg
Drums                           Net weight: 225 kg
                                    Gross weight:
                                    approx. 235.5 kg for plastic drums
                                    approx. 247 kg for coated steel drums

Mine-float™ 871 mineral collector

Mine-float 871 is an aqueous solution of dialkyl dithiophosphate and mercaptobenzothiazole.

Mine-float 871 has little or no frothing properties. It requires a longer conditioning time than do the xanthates and for this
reason is usually added to a conditioning step or in some instances to the grinding mill.

Mine-float 871 is used in the flotation of oxidized lead and copper ores after sulfidization in a soda ash circuit, alone or
in conjunction with xanthate or other dithiophosphate type collectors in the flotation of copper and lead in complex sulphide ores and gold-silver ores. In cases where copper and lead are somewhat slower floating, Mine-float 871 may produce a faster flotation kinetic than other collectors.

It has also found use in the flotation of pyrite in acid circuits in the pH range of 4 to 6. In the latter case the dosage of Mine-float 871 is considerably lower than for xanthates. Mine-float 871 is rated an excellent collector in the flotation of auriferous pyrite.

Mine-float 871 can be added undiluted or preferably diluted with clear water to 5-20% solutions. It is good practice to stir before use.

The dosage of Mine-float 871 varies with the type of ore, usually falling in the range of 10 to 100 grams per metric ton.

Experience has shown that Mine-float 871 is effective in the pH range of 3-12.

Composition

Chemical name: i-propyl-dtp-Na, s-butyl-dtp-Na and MBTNa
CAS name: Phosphorodithioic acid, O,O-bis(1-methylethyl) ester, sodium salt, phosphorodithioic acid, O,O-bis(1-methylpropyl) ester, sodium salt and 2(3H)-Benzothiazolethione, sodium salt
Active ingredient: 24-26%, 6-7% and 11-12% by weight respectively

Physical properties

Appearance: Yellow to brown
Form: Liquid (aqueous solution)
Boiling point: 104-105 degrees C
Melting/freezing point: Minus 9 to minus 11 degrees C
Specific gravity: 1.16 g/ml
Flash point: >100 degrees C

Safety and handling

Mine-float flotation collectors are manufactured under carefully controlled conditions. However, to varying degrees they can be considered harmful and therefore before handling this product always carefully read and understand the MSDS for this product. Mine-float 871 causes irritation to eyes and skin.

Safe handling includes the use of safety glasses, natural rubber gloves and protective clothing.

Storage

+ Store in a dry and well-ventilated place away from heat and sunlight after the principle “first in/first out”
+ Avoid freezing
+ Store in plastic drums or coated steel drums

Environmental impact

Mine-float 871 is biodegradable. LC50, 96 hrs Rainbow trout 1.8 mg/l for MBTNa. LC50, 48 hrs Daphnia magna 19 mg/I for MBTNa. The majority of the collector is tied up with the concentrate and is destroyed in subsequent processing operations. The remainder is transferred to the tailings. Release into the water systems should be avoided.

Packing

Gross weight:
approx. 235.5 kg for plastic drums
approx. 247 kg for coated steel drums

Dithiophosphates with Thionocarbamates Series:

Crown-Dtp-tc series

Mine-float™ 262 mineral collector

Mine-float 262 is a water-insoluble collector of the thionocarbamate type.

Mine-float 262 has no frother action, and because of the water insolubility it is often added to the grinding circuit.
To increase the dispersion into the pulp. Mine-float 262 can be added as an emulsion with a carrier liquid such as a frother.

Because of the high selectivity over pyrite, the main application of Mine-float 262 is in the flotation of copper sulphides and Cu-activated sphalerite.

Mine-float 262 is a very powerful collector which can operate in the pH range of 4-12. It is a fast collector and produces moderate recovery in many applications.

Mine-float 262 is subject to overdosing and should be used in smaller quantities than xanthates. Many operators
prefer to use Mine-float 262 as a primary collector and xanthate as a scavenger collector.

Composition

Chemical name: thionocarbamate
CAS name: Carbamothioic acid, ethyl-, O-(1-methyl ethyl) ester
Active ingredient: approx. 93-98% by weight

Physical properties

Appearance: Yellow to reddish brown
Form: Liquid (aqueous solution)
Boiling point: Approx. 217 degrees C
Melting/freezing point: –
Specific gravity: 0.98 g/ml
Flash point: Above 65 degrees C

Safety and handling

Mine-float flotation collectors are manufactured under carefully controlled conditions. However, to varying degrees they can be considered harmful and therefore before handling this product always carefully read and understand the MSDS for this product. On prolonged contact Mine-float 262 causes irritation to skin and mucous membranes.

Safe handling includes the use of safety glasses, natural rubber gloves and protective clothing. Additionally, avoid inhalation of vapours.

Storage

+ Store in a dry and well-ventilated place away from heat and sunlight after the principle “first in/first out”
+ Store in plastic drums or coated steel drums

Environmental impact

Mine-float 262 is biodegradable. The majority of the collector is tied up with the concentrate and is destroyed in the subsequent processing operations. The remainder is transferred to the tailings. Release into the water systems should be avoided.

Packing

Mine-float mineral collectors are supplied in tank containers or plastic drums. If preferred, Mine-float collectors may be supplied in coated steel drums.

Tank containers              Net weight: approx. 20 MT
IBC containers                 Net weight: 1,000-1,075 kg
                                    Gross weight: approx. 1,059-1,134 kg
Drums                           Net weight: 225 kg
                                    Gross weight:
                                    approx. 210.5 kg for plastic drums
                                    approx. 222 kg for coated steel drums

Mine-float™ 262E mineral collector

Mine-float 262E is a thionocarbamate thiol collector blended with an emulsifier that allows the product to be diluted in water for feeding to a process. The product is fully homogeneous and

stable.

Mine-float 262E offers good selectivity against pyrite in sulfide flotation and can provide good to excellent flotation response to various copper minerals, including but not exclusively, chalcopyrite, bornite, chalcocite and covellite. Other applications include copper activated sphalerite, tetrahedrite and, depending on ore mineralogy, gold ore flotation.

While the product is often used as a single collector, the product can be used in combination with a xanthate reagent in addition or even as a partial Mine-float 262E replacement. Depending on ore mineralogy and flotation circuit conditions,
the Mine-float 262E dosage level is often lower than xanthate on a comparative basis.

Mine-float 262E provides greater frothing compared to xanthate.

Depending on water characteristics and chemistry, Mine-float 262E can be diluted in water up to a 10% solution concentration for feeding to the circuit. The product can also be fed to the circuit undiluted. If using a product dilution is desired, because water chemistry can have an impact, stability tests at the target solution concentration is necessary and highly recommended.

Mine-float 262E is normally used in neutral to alkaline conditions (> 6 pH). Typical dosage levels

depend on ore feed grades, mineralogies and flotation responses, but typical dosage levels range between 10 to 50 grams per metric ton ore (0.020 to 0.11 lb/T).

Composition

Chemical name: Thionocarbamate
CAS name: O-Isopropylethylthionocarbamate, emulsifiers
Active ingredient: 54-58%

Physical properties

Appearance: Reddish brown to golden
Form: Liquid
Boiling point: not available
Melting/freezing point: < 30 degree C
Specific gravity: 0.98 g/ml at 20 degrees C
Flash point: 58 degrees C (Pensky-Martens closed tester)

Safety and handling

Mine-float collectors are manufactured under the highest quality standards; nonetheless, these chemicals can be hazardous and harmful. Always read and understand the MSDS before handling the product.

Safe handling includes use of safety glasses, splash shield over face, natural rubber gloves and protective clothing. Additionally, avoid inhalation of vapours.

Storage

When properly stored, Mine-float 262E has a shelf life of at least 2 years provided the product is stored under the following guidelines:

+ Store the product in a dry and well-ventilated location away from heat and sunlight
+ Use a first in-first out inventory control
+ Avoid freezing
+ Store in plastic drums, polypropylene IBCs/totes, or coated steel drums.

Environmental impact

Mine-float 262E is biodegradable. Do not allow product to report to a natural stream as this product can cause ecotoxicity issues.

Most of the collector is adsorbed to the concentrate mineral particles and removed from the system. Any residual in the water phase and adsorbed to minerals that are not floated report to the tailings. Release of the product directly to natural water streams should be avoided.

Packing

Mine-float mineral collectors are supplied in a range of containers including plastic drums, coated steel drums, polypropylene IBCs/totes and tank containers having the following net product weights:

Drums (plastic and metal)             225 kg (496 lbs.)
IBC containers                             Net weight: 1,000-1,075 kg
                                                Gross weight: approx. 1,059-1,134 kg
Tank containers                          approx. 20 MT (44,092 lbs.)

Mine-float™ 262T mineral collector

Mine-float 262T is a thionocarbamate and mercaptan thiol collector blend that is fully homogeneous and stable.

Mine-float 262T offers good selectivity against pyrite in sulfide flotation and can provide good to excellent flotation response to various copper minerals, including but not exclusively, chalcopyrite, bornite, chalcocite and covellite. Other applications include copper activated sphalerite, tetrahedrite and, depending on ore mineralogy, gold ore flotation. The mercaptan component makes this product a good metallic element collector and often enhances the flotation of tarnished and slightly oxidized minerals.

While the product is often used as a single collector, a xanthate reagent can be used as a partial Mine-float 262Treplacement and, depending on mineralogies and floatation circuit conditions, the dosage level typically is lower than xanthate on a comparative basis.

Mine-float 262T has a greater frothing property compared to xanthate.

Because Mine-float 262T is relatively insoluble, water dilutions are not stable. Consequently, the product should be fed to the circuit undiluted. Mine-float 262T has sufficient solubility particularly under normal sulfide slurry conditions that the adsorption kinetics are relatively fast.

Mine-float 262T is normally used in neutral to alkaline conditions (> 6 pH). Typical dosage levels depend on ore feed grades, mineralogies and flotation responses, but typical dosage levels range between 10 to 50 grams per metric ton ore (0.020 to 0.11 lb/T).

Composition

Chemical name: Thionocarbamate, 1-dodecanethiol, isopropanol
CAS name: O-Isopropylethylthiocarbamate, Dodecane-1-thiol, isopropanol
Active ingredient: 83-87%, 3-5%, 5-7%, respectively

Physical properties

Appearance: Light pink
Form: Liquid
Boiling point: 124-125 degrees C
Melting/freezing point: Minus 6 to minus 8 degrees C
Specific gravity: 0.968 g/ml at 20 degrees C
Flash point: 41 degrees C

Safety and handling

Safe handling includes use of safety glasses, splash shield over face, natural rubber gloves and protective clothing. Additionally, avoid inhalation of vapours.

Storage

When properly stored, Mine-float 262T has a shelf life of at least 2 years provided the product is stored under the following guidelines:

+ Store the product in a dry and well-ventilated location away from heat and sunlight
+ Use a first in-first out inventory control

+Avoid freezing
+ Store in plastic drums, polypropylene IBCs/totes, or coated steel drums

Environmental impact

Mine-float 262T is biodegradable. Do not allow product to report to a natural stream as this product can cause ecotoxicity issues.

Most of the collector is adsorbed to the concentrate mineral particles and removed from the system. Any residual in the water phase and adsorbed to minerals that are not floated report to the tailings. Release of the product directly to natural water streams should be avoided.

Packing

Mine-float™ 507 mineral collector

Mine-float 507 is an aqueous solution of dialkyl dithiophosphate and thionocarbamate.

Mine-float 507 is normally added to the grinding circuit or in a conditioner and it has no or
very little frothing action.

Mine-float 507 offers good selectivity of mineral over pyrite and has been used in applications involving chalcopyrite, bornite, chalcocite and covellite copper ores. It has also found use in a mixed oxide-sulphide copper ore in conjunction with xanthate. Other applications are in the flotation of galena and Cu-activated sphalerite. Mine-float 507 is a good collector for tetrahedrite.

Mine-float 507 is a very fast and quite powerful collector and it should be used in smaller quantities than xanthate.

Mine-float 507 should be added undiluted. The dosage of Mine-float 507 varies with the type of ore, but is normally lower than for xanthates. Recommended dosage is between 10 and 50 grams per metric ton ore.

Mine-float 507 is normally used in the pH range from 4 to 12.

Composition

Chemical name: i-butyl-dtp-Na and thionocarbamate
CAS name: Phosphorodithioic acid, O,O-bis(2-methyl propyl)ester, sodium salt and O-Isopropylethylthionocarbamate
Active ingredient: 33-36% and 28-31% by weight respectively

Physical properties

Appearance: Yellow to reddish brown
Form: Liquid (aqueous solution)
Boiling point: –
Melting/freezing point: –
Specific gravity: 1.09 g/ml
Flash point: Above 65 degrees C

Safety and handling

Mine-float flotation collectors are manufactured under carefully controlled conditions. However, to varying degrees they can be considered harmful and therefore before handling this product always carefully read and understand the MSDS for this product. Mine-float 507 is harmful if swallowed and causes irritation to eyes and skin.

Safe handling includes the use of safety glasses, natural rubber gloves and protective clothing. Additionally, avoid inhalation of vapours.

Storage

+ Store in a dry and well-ventilated place away from heat and sunlight after the principle “first in/first out”
+ Avoid freezing
+ Store in plastic drums or coated steel drums

Environmental impact

Mine-float 507 is biodegradable. The majority of the collector is tied up with the concentrate and is destroyed in the subsequent processing operations. The remainder is transferred to the tailings, Release into the water systems should be avoided.

Packing

Mine-float mineral collectors are supplied in tank containers or plastic drums. If preferred,

Mine-float™ 507 B mineral collector

Mine-float 507 B is an aqueous solution of dialkyl dithiophosphate, thionocarbamate and Iso-butanol.

Mine-float 507 B is normally added to the grinding circuit or in a conditioner and it has less frothing properties than Mine-float 507.

Mine-float 507 B offers good selectivity of mineral over pyrite and has been used in applications involving chalcopyrite, bornite, chalcocite and covellite copper ores. It has also found use in a mixed oxide-sulphide copper ore in conjunction with xanthate. Other applications are in the flotation of galena and Cu-activated sphalerite. Mine-float 507 B is a good collector for tetrahedrite.

Mine-float 507 B is a very fast and quite powerful collector and it should be used in smaller quantities than xanthate.

Mine-float 507 B should be added undiluted. The dosage of Mine-float 507 B varies with the type of ore, but is normally lower than for xanthates. Recommended dosage is between 10 and 50 grams per metric ton ore.

Mine-float 507 B is normally used in the pH range from 4 to 12.

Composition

Chemical name: i-butyl-dtp-Na, thionocarbamate and Iso-butanol
CAS name: Phosphorodithioic acid, O,O-bis(2-methyl propyl)ester, sodium salt and O-Isopropylethylthionocarbamate, 2-methyl (-1-propanol)
Active ingredient: 32-35 % and 28-31% and 3.6-4.4% by weight respectively

Physical properties

Appearance: Light brown
Form: Liquid (aqueous solution)
Boiling point: 102.5 degrees C
Melting/freezing point: Minus 5 to minus 7 degrees C
Specific gravity: 1.07 g/ml
Flash point: None

Safety and handling

Mine-float flotation collectors are manufactured under carefully controlled conditions. However, to varying degrees they can be considered harmful and therefore before handling this product always carefully read and understand the MSDS for this product. Mine-float 507 is harmful if swallowed and causes irritation to eyes and skin.
Safe handling includes the use of safety glasses, natural rubber gloves and protective clothing. Additionally, avoid inhalation of vapours.

Storage

+ Store in a dry and well-ventilated place away from heat and sunlight after the principle “first in/first out”
+ Avoid freezing
+ Store in plastic drums or coated steel drums

Environmental impact

Mine-float 507 B is biodegradable. The majority of the collector is tied up with the concentrate and is destroyed in the subsequent processing operations. The remainder is transferred to the tailings, Release into the water systems should be avoided.

Packing

Mine-float mineral collectors are supplied in tank containers or plastic drums. If preferred,

Mine-float™ 507 E mineral collector

Mine-float 507 E is an aqueous solution of dialkyl dithiophosphate and thionocarbamate.

Mine-float 507 E is normally added to the grinding circuit or in a conditioner and it has no or
very little frothing action.

Mine-float 507 E offers good selectivity of mineral over pyrite and has been used in applications involving chalcopyrite, bornite, chalcocite and covellite copper ores. It has also found use in a mixed oxide-sulphide copper ore in conjunction with xanthate. Other applications are in the flotation of galena and Cu-activated sphalerite. Mine-float 507 E is a good collector for tetrahedrite.

Mine-float 507 E is a very fast and quite powerful collector and it should be used in smaller quantities than xanthate.
Mine-float 507 E can be added undiluted or as an emulsion with water to 1-10% solutions.

The dosage of Mine-float 507 E varies with the type of ore, but is normally lower than for xanthates. Recommended dosage is between 10 and 50 grams per metric ton ore.

Mine-float 507 E is normally used in the pH range from 4 to 12.

Composition

Chemical name: i-butyl-dtp-Na, thionocarbamate and Isobutanol
CAS name: Phosphorodithioic acid, O,O-bis(2-methyl propyl)ester, sodium salt and O-Isopropylethylthionocarbamate
Active ingredient: 32-35% and 28-31%, 0.8-1.2% by weight respectively

Physical properties

Appearance: Light brown
Form: Liquid (aqueous solution)
Boiling point: 101.5 degrees C
Melting/freezing point: Minus 6 to minus 8 degrees C
Specific gravity: 1.077 g/ml at 20 degrees C
Flash point: Above 90 degrees C

Safety and handling

Mine-float flotation collectors are manufactured under carefully controlled conditions. However, to varying degrees they can be considered harmful and therefore before handling this product always carefully read and understand the MSDS for this product. Mine-float 507 E is harmful if swallowed and causes irritation to eyes and skin.

Safe handling includes the use of safety glasses, natural rubber gloves and protective clothing. Additionally, avoid inhalation of vapours.

Storage

+ Store in a dry and well-ventilated place away from heat and sunlight after the principle “first in/first out”
+ Avoid freezing
+ Store in plastic drums or coated steel drums

Environmental impact

Mine-float 507 E is biodegradable. The majority of the collector is tied up with the concentrate and is destroyed in the subsequent processing operations. The remainder is transferred to the tailings, Release into the water systems should be avoided.

Packing

Mine-float mineral collectors are supplied in tank containers or plastic drums. If preferred,

Mine-float™ 527 E mineral collector

Mine-float 527 E is the water emulsifiable version of Mine-float 527, an aqueous solution of dialkyl dithiophosphate and thionocarbamate.

Mine-float 527 E can be added to the grinding circuit, in a conditioner or the flotation circuit and it has no or very little frothing action.

Mine-float 527 E offers good selectivity of mineral over pyrite and has been used in applications involving chalcopyrite, bornite, chalcocite and covellite copper ores. It has also found use in a mixed oxide-sulphide copper ore in conjunction with xanthate. Other applications are in the flotation of galena and Cu-activated sphalerite. Mine-float 527 E is a good collector for tetrahedrite and gold ores.

Mine-float 527 E is a very fast and quite powerful collector and it should be used in smaller quantities than xanthate.

Mine-float 527 E can be added undiluted, but a 1-10% emulsion is preferable.

The dosage of Mine-float 527 E varies with the type of ore, but is normally lower than for xanthates. Recommended dosage is between 10 and 50 grams per metric ton ore.

Mine-float 527 E is normally used in the pH range from 4 to 12.

Composition

Chemical name: i-butyl-dtp-Na and thionocarbamate
CAS name: Phosphorodithioic acid, O,O-bis(2-methyl propyl)ester, sodium salt O-Isopropylethylthionocarbamate
Active ingredient: 39-41% and 18-20% by weight respectively

Physical properties

Appearance: Light brown
Form: Liquid (aqueous solution)
Boiling point: 103 degrees C
Melting/freezing point: Minus 6 to minus 8 degrees C
Specific gravity: 1.095 g/ml at 20 degrees C
Flash point: Above 70 degrees C

Safety and handling

Mine-float flotation collectors are manufactured under carefully controlled conditions. However, to varying degrees they can be considered harmful and therefore before handling this product always carefully read and understand the MSDS for this product. Mine-float 527 E is harmful if swallowed and causes irritation to eyes and skin.

Safe handling includes the use of safety glasses, natural rubber gloves and protective clothing. Additionally, avoid inhalation of vapours.

Storage

+ Store in a dry and well-ventilated place away from heat and sunlight after the principle “first in/first out”
+ Avoid freezing
+ Store in plastic drums or coated steel drums

Environmental impact

Mine-float 527 E is biodegradable. The majority of the collector is tied up with the concentrate and is destroyed in the subsequent processing operations. The remainder is transferred to the tailings, Release into the water systems should be avoided.

Packing

Mine-float mineral collectors are supplied in tank containers or plastic drums. If preferred,

Mine-float™ 607 E mineral collector

Mine-float 607E is a blended aqueous solution of dialkyl dithiophosphate and thionocarbamate collectors that has been designed to remain homogenous.

Mine-float 607E offers good selectivity against pyrite in sulfide flotation and can provide good to excellent flotation response to various copper minerals, including but not exclusively, chalcopyrite, bornite, chalcocite and covellite. Other applications are in the flotation of galena and copper

activated sphalerite, tetrahedrite and gold ores.

The product can be used in conjunction with xanthate or as a replacement and, depending on mineralogies and flotation
circuit conditions, this product may be stronger than xanthate in which case the dosage will be lower than xanthate.

Mine-float 607E should be fed to the circuit undiluted but because the product does emulsify, dilution is possible before dosing to a circuit. Before deciding to dilute the product, because water chemistry can have an impact, stability tests at the solution concentration desired is highly recommended.

Mine-float 607E is normally used in neutral to alkaline conditions (> 6 pH). Typical dosage levels depend on ore feed grades, mineralogies and flotation responses, but typical dosage levels range between 10 to 50 grams per metric ton ore (0.020 to 0.11 lb/T).

The dosage of Mine-float 607E varies with the type of ore, usually falling within the range of 5 to 50 grams per metric ton ore. However, it is usually considerably less than for other sulphide collectors.

Composition

Chemical name: Na sec-butyl dithiophosphate, thionocarbamate, sec-butanol
CAS name: Phosphorodithioic acid, O,O.-bis(1-methyl propyl)ester, sodium salt, O-Isopropylethylthionocarbamate, Sec-butanol
Active ingredient: 30-33%, 27-28% and 2-3%, respectively

Physical properties

Appearance: Light brown
Form: Liquid (aqueous solution)
Boiling point: 101 to 101.5 degrees C
Melting/freezing point: Minus 10 to minus 13 degrees C
Specific gravity: 1.079 g/ml at 20 degrees C
Flash point: Above 100 degrees C (Pensky-Martens closed tester)

Safety and handling

Storage

When properly stored, Mine-float 607E has a shelf life of at least 2 years provided the product is stored under the following guidelines:

+ Store the product in a dry and well-ventilated location away from heat and sunlight
+ Use a first in-first out inventory control
+ Avoid freezing
+ Store in plastic drums, polypropylene IBCs/totes, or coated steel drums.

Environmental impact

Mine-float 607E is biodegradable. Do not allow product to report to a natural stream as this product can cause ecotoxicity issues. Most of the collector is adsorbed to the concentrate mineral particles and removed from the system. Any residual in the water phase and adsorbed to minerals that are not floated report to the tailings. Release of the product directly to natural water should be avoided.