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Version 5: July 2013 APAC

Performance Products

Flotation Frother Products for the Mining Industry www.huntsman.com/performance_products

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Contents

Huntsman Mission ................................................................................................................... 3

About Huntsman ...................................................................................................................... 3 Huntsman Performance Products ................................................................................................. 3 Flotation Frothers ........................................................................................................................ 4 POLYFROTH® Frother Series Product Range ................................................................................... 4 POLYFROTH® Frother Series Product Characteristics ...................................................................... 5 POLYFROTH® Frother Series Properties ......................................................................................... 6

Frother Strength .................................................................................................................................................. 7 Physical Properties and Solubility Guide ............................................................................................................. 7

Other Huntsman Products Functional as Frothers ........................................................................ 10 Frother Strength ................................................................................................................................................ 10 Physical Properties ............................................................................................................................................ 10

Huntsman Performance Products Frothers and Carbon Fouling ................................................... 11 Other Frother Product Information ............................................................................................. 12

Handling and Storage ........................................................................................................................................ 12 Materials Compatibility ..................................................................................................................................... 12 Product Integrity ............................................................................................................................................... 12 Environmental Profile ....................................................................................................................................... 12

Biodegradability of Huntsman Flotation Reagents ....................................................................... 12 Other Specialty Products for the Mining Industry ........................................................................ 13 Service and Technical Support .................................................................................................... 13

ABN 67 083 984 187 Issue date: July 2013 (Version 5) JEFFOX, POLYFROTH, POLYSIL, POLYMAX, TERIC, UNIFROTH, UNIMAX, UNIFLOT, UNIBIND and UNIDRI are registered trademarks of Huntsman LLC or an affiliate thereof in one or more, but not all, countries. RESPONSIBLE CARE is a trademark of the American Chemistry Council. TEFLON is a trademark of Dupont. SKIMAIR is a trademark of Outokumpu Oyj

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Huntsman Mission We are dedicated to giving our customers the finest quality and service available. Customers are valued partners who permit us to remain in business; we are privileged to serve their needs.

About Huntsman Huntsman is a global manufacturer and marketer of differentiated chemicals. Our operating companies manufacture products for a variety of global industries, including chemicals, plastics, automotive, aviation, textiles, footwear, paints and coatings, construction, technology, agriculture, health care, detergent, personal care, furniture, appliances and packaging. Originally known for pioneering innovations in packaging and, later, for rapid and integrated growth in petrochemicals, Huntsman has approximately 12,000 employees and operates from multiple locations worldwide. The Company had 2012 revenues of over $11 billion. For more information about Huntsman, please visit the company's website at www.huntsman.com.

Huntsman Performance Products With manufacturing sites and technical teams located around the world, Huntsman Performance Products combines global reach with in-depth regional and sector specific support. Serving major well-established industries alongside niche, emerging markets, we manufacture more than 2,000 specialty chemicals and license in excess of 35 process technologies – giving our customers a broad scope to create sustainable, differentiated

solutions for a fast-changing world. Huntsman’s Global Performance Products division has extensive experience in the mining industry and offers a number of products for mineral processing, with a specific focus on froth flotation and hydrometallurgy. Flotation reagents include frothers, depressants, dispersants, specialty amines and some specialty collectors. Huntsman also offers coagulants for hydrometallurgical applications, carbon blanking agents for gold leaching, filter aids for dewatering processes, dust control products and heat transfer fluids. Intermediate chemistries and amines that are used in exploration and ore extraction are also available.

Huntsman’s mining reagents are used throughout the world and finding wider use in the global mineral processing industry as the industry seeks to achieve improved metallurgical performance, cost efficiency and an improved environmental and safety impact from the reagents they use. With manufacturing sites and technical teams located around the world, Huntsman Performance Products combines global reach with regional and sector specific support. We utilize our synthesis and application expertise to create sustainable differentiated solutions for our customer’s specific needs that add value and competitive advantage.

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Flotation Frothers Frother reagents are principally added to a flotation pulp to:

• Improve dispersion of air throughout the pulp by the formation and stabilisation of fine air bubbles and,

• Form a mineralised froth at the top of the flotation cell, producing a froth phase. A transient froth is a prerequisite for the successful transport of mineral laden bubbles from the pulp zone/froth zone interface to the concentrate launder and rejection of gangue material from the froth (i.e. returned to the pulp via froth drainage). Alcohols, alkoxy substituted paraffins and polyglycols are the three basic chemical groups that dominate in frother selection and their application. Methyl isobutyl carbinol (MIBC) is the best known example of alcohol

frother used in froth flotation. The alkoxy substituted paraffin type frothers, of which triethoxy butane (TEB) is the main frother in use, can be loosely associated with the polyglycol ethers on the basis of both structure and performance. The Huntsman Performance Products flotation frothers are inclusive of low molecular weight alcohol based frothers and polyglycol ethers formed from condensation of alkylene oxides with lower alcohols. Each group provides particular characteristics which affect load support, bubble diameter, water retention and drainage, air dispersion, and froth formation kinetics. POLYFROTH® Frother Series Product Range Huntsman Performance Products has successfully developed the POLYFROTH® range of frothers for froth flotation. The POLYFROTH® frother series aims to deliver the full spectrum of frother properties and strengths required in mineral and coal flotation applications, and has been the result of the evaluation of both common and novel chemical compounds in laboratory and pilot flotation tests and extensive plant trials around the globe. Huntsman’s range of flotation frothers includes alcohols, glycol ethers and blends, polyglycols, and blends of proprietary chemicals, and covers the full range of requirements, from low strength for selective flotation through to high strength for coarse particle recovery. They range from the POLYFROTH® 50 series of frothers which are recognised as strong frothers, to the POLYFROTH® 30 series which are intermediate strength frothers, to the POLYFROTH® 20 series which are low to moderate strength frothers, through to the POLYFROTH® 10 frother series which is the weakest and most selective of the range. This unique range of frothing properties and selectivity is what gives the different Huntsman POLYFROTH® frothers their application and performance benefits in all mineral sectors of the mining industry, including base metal sulphides, precious metals (gold, silver, PGEs), industrial minerals, coal and various other non-sulphides.

POLYFROTH® W22 FROTHER Copper Ore

POLYFROTH® H27 FROTHER Copper Gold

POLYFROTH® W55 FROTHER Nickel Ore

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POLYFROTH® Frother Series Product Characteristics The Huntsman Frother Selection Guide found on page 8 has further details on the POLYFROTH® frother range. Principal product characteristics are described below:

POLYFROTH® 10’s frother series




Low Strength Low to Moderate Strength

Intermediate to High Strength

Highest Strength

POLYFROTH® H17 frother, POLYFROTH® H15 frother and POLYFROTH® H14 frother are among the weakest, and most selective of the frothers in the series, and comparable to MIBC.

Intermediate froth strengths and a good balance between strength, hydrophobicity and kinetics are afforded by POLYFROTH® H30, POLYFROTH® H27 and POLYFROTH® H29 frothers. POLYFROTH® H27

frother and POLYFROTH® H30 frother are hydrophobic and give a boost in the flotation froth kinetics with generally higher froth concentrate carry-over (mass pull). POLYFROTH® W22

frother and POLYFROTH® H23 frother are lower strength, highly selective frothers, comparable to methyl isobutyl carbinol (MIBC) and other low molecular weight alcohol-based frothers. POLYFROTH® W22 has

been specifically designed as a high flash point alternative to MIBC and is available for use at a reduced dose rate than that typical of MIBC.

POLYFROTH® W31 frother is a polyglycol ether frother that is an established industry alternative to the Dowfroth™ 250C flotation frother. It produces relatively mobile and freely draining froths of intermediate strength. It offers a combination of selectivity, froth stability and moderate kinetics, and is therefore generally used in for a wide range of flotation applications. POLYFROTH® W34

frother is an intermediate to high-strength frother with solution characteristics similar to those of POLYFROTH®W31 frother. It produces froths of well-defined structure and bubble size and is available for applications requiring intermediate froth stability and good froth depth control.

POLYFROTH® H57 frother is among the strongest, most hydrophobic in the series and offers good kinetics. POLYFROTH® W55

frother and POLYFROTH® W53 frother are also strong and efficient frothers, but less selective in use. POLYFROTH® W55

frother and POLYFROTH® H57 frother usually results in reduced dosage and better froth control than other alternative strong alcohol/polyglycol ether blends.

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POLYFROTH® Frother Series Properties

This unique range of frothing properties and selectivity is what gives the different Huntsman POLYFROTH® frothers their application and performance benefits in a wide range of flotation situations.

As a group the POLYFROTH® frothers offer high metallurgical grades with low water carry-over into the concentrate. The POLYFROTH® frothers are typically easily dispersible in water and have low volatility that gives very good froth efficiency. They have a low level of toxicity and odour, lower VOC (Volatile Organic Carbon) emissions and most are non-flammable. The greater froth persistence, together with higher water solubility of selected frothers in the POLYFROTH® frother product series, can offer the option of a simpler single point addition. Client experience has shown dose rates that are typically less than those for other alcohol- and glycol ether-based frother blends.

Our frothers aim to provide improved safety, health and environmental outcomes resulting in lower compliance costs associated with their transportation, storage, handling and use.

W31

H57

W55W53

W34

H23

H28

H27

W22

Froth Power

Frot

h Q

ualit

y

Soluble

Strength

Kinetics & Selectivity

Mobility & Stability

Higher Stability &Coarse Particles

Recovery

Persistence &Coarse Particles

Recovery

H20

H17H15

H29H30

20 Series 50 Series30 Series10 Series

Dispersible

Weaker Stronger

Fine Coarse Particle Size

Hydr

opho

bic

Hydr

ophi

lic

Wea

ker

Stab

le

Dry

Wet

H14

W24

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Frother Strength The POLYFROTH® frother series offers a range of frother strength properties, which can be applied to a range of flotation stability applications.

Relative froth strength based on a two-phase froth measurement in aqueous solutions under similar test conditions.

Physical Properties and Solubility Guide

POLYFROTH®

Frother Specific Gravity

(25oC) Viscosity (cP, 20oC)

Dynamic Surface Tension (mN/m, 100ppm @ 20oC)

Flash Point (oC) Water Diesel Kerosene

H57 0.936 15 59.1 77 W55 1.015 32 63.9 238 W53 0.980 24 62.5 155 W34 1.020 35 64.6 211 W31 0.980 21 64.4 100 UNIFROTH® 250CM 0.980 20 66.9 95 H30 1.084 15 60.1 108 H29 1.200 22 67.9 >100 H27 0.960 24 64.9 >70 W24 1.026 18 Nav 179 W22 0.923 20 67.3 >70 Dispersible H20 0.930 15 65.6 >100 Dispersible H23 0.870 12 68.2 53 H17 0.960 20 65.8 72 H15 1.194 17 71.2 146

These properties are typical and do not constitute a specification. For product specification details please obtain a current

copy of the product data sheet from our sales office.

0 100 200 300 400 500 600 700 800

Common alcohol frother

Common alkoxy frother

POLYFROTH® H15 frother




POLYFROTH® W22 frother










Higher values signify stronger frothers =======>>

Comparison of Strength of POLYFROTH® Series Frothers

in aqueous solution

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Huntsman Frother Selection Guide

Huntsman Frother

Water Soluble

Oil Soluble

Type Froth Characteristics

Frother Strength Trademark Product

Code

POLYFROTH®

H57

Alcohol-Ether

Hydrophobic and produces strong, drier froth characterised by fine froth structure and mobility. Demonstrates fast kinetics.

POLYFROTH®

W55 Glycol

Ether

Stronger frother with moderate hydrophobicity and improved water retention. Strong froth generation and froth persistence, producing well defined bubbles and uniform froth generation down-the-bank.

POLYFROTH® W53 Glycol

Ether High froth strength and fast flotation kinetics. Produces tight, strong bubbles of good mobility.

POLYFROTH® W34 Glycol

Ether

Low to moderate hydrophobicity, producing mobile, fluid froths with well defined froth structure and bubble size distribution.

POLYFROTH®

W31

Alcohol-

Ether Mobile, freely draining froth of intermediate strength. Offers a combination of selectivity, froth stability and moderate kinetics.

POLYFROTH® H30 Ester Fine, freely draining froth intermediate strength.

Offers good selectivity, efficiency and kinetics.

POLYFROTH® H29 Ester

Low to moderate hydrophobicity producing mobile, well draining froths of intermediate stability.

POLYFROTH® H27

Alcohol-Ether

Hydrophobic and produces a drier froth with well defined structure and good froth stability and kinetics.

POLYFROTH® W22

Alcohol-Ether

Generates fine bubbles of uniform froth structure with good water drainage characteristics and fast kinetics. Similar froth and solution characteristics to methyl isobutyl carbinol (MIBC) in some applications.

POLYFROTH® H20

Alcohol-Ether

Hydrophobic and produces an open froth structure with fine bubbles and loose, brittle froth.

POLYFROTH® H23

Alcohol-Ether

Provides a close match to the bubble and froth characteristics of MIBC. Highly selective, and demonstrates fast flotation kinetics.

POLYFROTH® H17 Alcohol-

Ether Hydrophobic and produces mobile, dry froths with low to moderate stability.

POLYFROTH® H15 Ester Dry, loose and brittle froths of low to moderate

stability.

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Performance Benefits Common Frother Alternatives

Common Applications Sulfide Metals Other

Nickel

Gold -

Pyrite

Lead-Zinc

Copper

Iron

Industrial

Coal

Robust frother suitable for operations where strong froths are required to assist flotation of coarse and middlings fractions and where rapid kinetics initially are desirable. Efficient frother useful for overcoming froth resistance and stability problems.

Alternative to polyglycol and polyglycol ether type frothers of higher molecular weight. Typically requires reduced dosage compared to alkoxy frother blends.

Suitable for operations where strong froths are required, and where froth persistence and stability is more important than rapid kinetics. Recommended for recovery of coarse size fractions. Usually results in reduced dosage and better froth depth control.

An alternative to TEB based frothers, matching their metallurgical performance and offering potential dose savings. Stability is similar to stronger alcohol/polyglycol ether blends.

The combination of high froth strength and rapid flotation kinetics offers improved recovery of coarse size fraction particles in rougher-scavenger cells.

Offers comparable stability and strength to higher strength TEB based and alcohol/glycol ether/polyglycol blends, with potential for reduced dosage.

Suitable for applications requiring intermediate froth stability and good froth depth control. Demonstrates a fine balance between stability and selectivity. Suited to both fine and intermediate coarse particles size distributions.

An alternative to the TEB based frothers, and to mid-strength alcohol based frothers containing small quantities of glycol ethers or polypropylene glycols.

Suitable for a wide range of flotation applications where a balance of selectivity and strength is required, with moderate persistence and good froth control enabled.

An alternative to mid-strength, intermediate molecular weight glycol ether/propylene glycol based frothers.

Suitable for flotation applications where both selectivity and froth strength is required. Offers good depth control and applicable to coarse sizes.

Alternative to mid-strength glycol ether/propylene glycol based frothers and stronger alcohol based frothers.

Selective in base metal flotation, providing improved flotation kinetics and intermediate froth strengths. Often results in lower water recovery and improved gangue rejection.

Alternative to low-mid molecular weight alcohol/ester/propylene glycol based frother blends.

Suitable for flotation applications where initial rapid kinetics or high froth concentrate carry-over are desirable, whilst maintaining mineral selectivity. Offers moderate froth strength and persistence, and can help overcome frothing resistance.

Alternative to lower molecular weight alcohol/ester/propylene glycol based frother blends.

Selective and broad flotation application frother, providing enhanced froth stability compared to MIBC, typically at reduced dosage. Designed to have a high flash point (>70 °C) with low volatility and odour, ensuring that it is not classified as dangerous goods.

Alternative to MIBC and low molecular weight alcohol based frothers and blends.

Suitable for flotation applications requiring selectivity, whilst providing high flash point characteristic. Demonstrates fast kinetics.

Alternative to MIBC and low molecular weight alcohol based frothers and blends.

Specifically designed to match frother performance of MIBC, with potential to operate at reduced dosage. Suitable with new cell technologies.

Alternative to MIBC and low molecular weight alcohol based frothers.

Selective in base and precious metal flotation, providing good flotation circuit control and stability.


Selective in base and precious metal flotation, providing good flotation circuit control.


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Other Huntsman Products Functional as Frothers Huntsman Performance Products offers the following functional frother products to the mining industry. These products may be effective in their own right, but typically find use as components of frother blends:

• UNIFROTH® 200 frother • JEFFOX® PPG-400 frother, PPG400 • PPG500

Supply of these frother products may be subject to regional availability.

Frother Strength These functional frothers offer a range of strength properties, which can be applied in frother blends to enhance frother performance and boost froth stability.

Relative froth strength based on a two-phase froth measurement in aqueous solutions under similar conditions.

Physical Properties

Product Specific Gravity (25oC)

Viscosity (cP, 25oC)

Flash Point (oC)

UNIFROTH® 200 frother 0.967 6 120 JEFFOX® PPG-400 frother/PPG400 1.009 82 204 PPG500 1.060 102 >166

These properties do not constitute a specification. For product specification details please obtain a current copy of the product data sheet from our sales office.

Comparison of Strength of Huntsman Frothers

0 100 200 300 400 500 600 700 800

Common alcohol frother

Common alkoxy frother

UNIFROTH® 200 frother

TERIC® 402 frother

JEFFOX® PPG-400 frother / PPG400

PPG500 frother

Higher values signify stronger frothers

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Huntsman Performance Products Frothers and Carbon Fouling It is well known that many chemical reagents may reduce the activity of activated carbon used in gold recovery operations employing carbon in leach (CIL) and carbon in pulp (CIP) processes. These reagents include collectors, frothers, oils and many other commonly used activators and depressants. Several independent studies into the extent of fouling on active carbon exposed to a number of Huntsman Performance Product’s frothers in typical mine process water, and subsequent recovery of activity after thermal regeneration (Study 2), have been conducted with the results summarised below.

STUDY 1

Product

Frother Concentration

% Relative Carbon Activity

mg/l Before Regeneration

POLYFROTH® H15 frother 5 99.7 POLYFROTH® H15 frother 10 95.9 POLYFROTH® W22 frother 5 89.6 POLYFROTH® H27 frother 5 99.2 POLYFROTH® H30 frother 5 98.4 POLYFROTH® H30 frother 10 99.5 POLYFROTH® H57 frother 5 97.3 POLYFROTH® H57 frother 10 85.0

Carbon Reference - 100 Reference Gold Sulfide frother 5 97.3 Reference Gold Sulfide frother 10 92.4

STUDY 2

Product

% Relative Activity Cycle 1 % Relative Activity Cycle 2

Before Regeneration

After Regeneration

Before Regeneration

After Regeneration

POLYFROTH® W24 frother 84 114 92 103

POLYFROTH® W55 frother 81 111 73 106 POLYFROTH® H57 frother 78 117 87 104 POLYFROTH® W53 frother 86 118 78 110

Control, no frother 98 - - - Carbon Reference 100 100 100 100

These studies have shown that only a small loss in carbon activity due to frother adsorption occurs, that can be readily recovered by normal carbon regeneration techniques. Thermal regeneration of fouled carbon samples returns carbon activity to greater than 100% (Study 2), indicating that appropriate selection of regeneration conditions can completely remove any absorbed frother and return the carbon to full activity. The conditions of regeneration used during this test were ideal, and it is unlikely that plant regeneration will produce material with this level of activity. However, optimisation of the plant regeneration conditions will maximise the removal of organic foulants such as frothers. Thermal gravimetric analysis work has shown that glycol based frothers, including products from the POLYFROTH® frother range, are removed from carbon active sites at temperatures between 200 - 600°C. In addition, there is no evidence of organic residues remaining on the carbon surface after regeneration nor any evidence to indicate a cumulative fouling effect due to successive exposure/regeneration cycles. The conclusion is that any resultant loss in carbon activity due to frother adsorption can be readily recovered by normal carbon regeneration techniques. Competition for carbon active sites by frother can be reduced by careful selection of the correct frother. An efficient frother that performs at lower dose rates and reports to the flotation concentrate will minimise frother contact with the carbon and thus reduce the effects of carbon fouling.

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Other Frother Product Information

Handling and Storage The Huntsman Performance Products frother range can be supplied in drums, IBC schutz boxes (totes) and as bulk isotanks. With the exception of POLYFROTH® H20, POLYFROTH® W22 and POLYFROTH® H27 frothers, all Huntsman frother products are essentially anhydrous and are not corrosive to common metals. They can be stored in mild steel or stainless steel tanks (316 and 304 stainless steel). POLYFROTH® H20, POLYFROTH® W22 and POLYFROTH® H27 frothers should only be stored in stainless steel tanks (316 and 304 stainless steel) or epoxy lined mild steel containers. Unlined mild steel tanks and transfer lines should be avoided. Materials Compatibility Wire reinforced polypropylene is the preferred material for hoses. Compressed asbestos fibre (CAF) is satisfactory for pipework gaskets, and butyl elastomers and TEFLON® polymer (PTFE) are recommended for seals and valve seats. Copper and its alloys, including brass, may cause some discolouration of the products. Product Integrity Maximum effective storage life will be achieved by storing products in sealed containers indoors, away from sunlight and heat sources. Because Huntsman Performance Products cannot control the storage and use conditions of its products, it is not possible to prescribe absolute shelf life. However, as a guide it is recommended that products in storage be checked against published sales specifications after 2 years. Environmental Profile All Huntsman frothers have a low level of volatility, toxicity and odour and are non-flammable. They are not classified as dangerous goods for transport by road, rail, air or sea.

Biodegradability of Huntsman Flotation Reagents

Biodegradability Huntsman Performance Products has commissioned biodegradability tests on a range of surfactants from which it is possible to infer the biodegradability of the POLYFROTH®, TERIC® and UNIFROTH® flotation reagents (frothers) included in this brochure. From these studies and from Huntsman Performance Products operational experience, it is estimated that Huntsman flotation frother products will not persist indefinitely in the environment.

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Other Specialty Products for the Mining Industry Huntsman Performance Products offers a diverse range of specialty products for the mining industry from its product portfolio. A selection of these products is described below.

Product Description Application

POLYMAX® T10 dispersant Effective dispersant of fine gangue particles (dolomites, etc.) and clays leading to reduced entrainment. Effective in improving the recovery of nickel (and MgO rejection) in nickel sulphide flotation.

Clays, MgO, Dolomites, Silicates, Talcs

POLYMAX® T12 dispersant Effective dispersant of fine hydrophobic gangue particles and clays leading to reduced entrainment and improved sulphide mineral grades.

Clays, MgO, Dolomites, Silicates, Talcs

POLYMAX® K50 dispersant Polymeric dispersant effective for dispersing fine gangue particles, kaolin and clays in sulphide flotation.

Clays and Silicates

POLYMAX® K55 dispersant Versatile dispersant used to facilitate the rejection of clays and hydrophobic gangue materials typically found in sulphide ores.

Clays, Silicates and Carbonates

POLYMAX® G30 depressant Preg-robbing depressant used in gold beneficiation processes (CIP/CIL leaching). Useful also as carbonaceous depressant in flotation.

Carbonaceous Ores and Graphitic or Amorphous Carbon

UNIMAX® SD-200 depressant Iron sulphide (pyrite, pyrrhotite, marcasite) depressant used in the flotation separation of base metal sulphides. Alternative partial cyanide replacement to depress iron and zinc sulphides in lead-zinc flotation.

Iron Sulphides and Metal Sulphides

UNIMAX® SD-210 depressant Iron sulphide (pyrite, pyrrhotite, marcasite) depressant used in the flotation separation of base metal sulphides.


UNIMAX® SD-300 depressant Iron sulphide (pyrite, pyrrhotite, marcasite) depressant used in the flotation separation of base metal sulphides.


UNIMAX® SD-500 depressant Sulphide depressant used to improve selectivity in the flotation separation of base metal sulphides. Metal Sulphides

Diethylenetriamine (DETA) depressant Polyamine used as a depressant for pyrrhotite and arsenides in copper and nickel mineral flotation. Pyrrhotite and Arsenides

Triethylenetetramine (TETA) depressant Polyamine used as a depressant for pyrrhotite and arsenides in copper and nickel mineral flotation. Pyrrhotite and Arsenides

POLYSIL® RM1250 coagulant Coagulant for the treatment of fine particles in aqueous suspension, finding application in the solvent extraction process (silica coagulation and crud management).

Colloidal Silica and Crud

POLYSIL® RM2050 coagulant Coagulant for the treatment of fine particles in aqueous suspension, finding application in the solvent extraction process (silica coagulation and crud management).

Colloidal Silica, Crud and Fine Particles

POLYSIL® RM3560 coagulant Broad Range Coagulant for the treatment of fine particles in aqueous suspension, finding application in the solvent extraction process (fines coagulation).

Colloidal Silica and Fine Particles

POLYFLOT™ IPETC specialty collector Specialty Collector used in the flotation of non-ferrous metallic sulphides, in particular copper sulphides and associated precious metals such as gold and silver.

Non-ferrous Metallic Sulphides

UNIDRI® M-40LV dewatering aid Dewatering aid for sulphide, iron and coal concentrates. Moisture Reduction and Control UNIDRI® M-60HV dewatering aid Dewatering aid for sulphide, iron and coal concentrates. Moisture Reduction and Control UNIDRI® M-75HF dewatering aid High flash point dewatering aid for sulphide, iron and coal concentrates. Moisture Reduction and Control

Service and Technical Support We are dedicated to giving our customers the finest quality products and service available. Huntsman has the combined advantages of being a global manufacturer with the knowledge of local requirements, and we are well positioned to service all your mining reagent needs. Huntsman’s Mining team is highly experienced to be able to provide professional and prompt product support to its customers. We work with customers to provide solutions to complex technical problems and offer new materials from advantaged feedstocks that create value. Supported by a global network of scientists, engineers and technical specialists, Huntsman is actively developing new products that improve mineral processing performance. Contact our customer sales representatives for more information on these products.

Americas Huntsman Performance Products 10003 Woodloch Forest Drive The Woodlands, Texas, USA Telephone: +1 281 719 6000 Facsimile: +1 281 719 6416

Europe Huntsman Performance Products Everslaan 45 B-3078 Everberg Belgium Telephone: +32 2 758 9211 Facsimile: +32 2 758 9112

Asia Pacific Huntsman Performance Products 150 Beach Road #37-00 Gateway West Singapore 189720 Telephone: +65 6297 3363 Facsimile: +65 6296 3368

Australia Huntsman Performance Products 61 Market Road, Brooklyn, Victoria, Australia, 3012 Telephone: +61 3 9933 6696 Facsimile: +61 3 9933 6656 Toll free (within Australia): 1300 301 529 E-mail: [email protected]

Malaysia Huntsman Performance Products Fifth floor, Wisma Avon 13A Jalan 219 46100 Petaling Jaya Selangor Darul Ehsan Telephone: +60 3 7962 0888 Facsimile: +60 3 7958 1677

Huntsman Corporation warrants only that its products meet the specification stated in its contracts. Typical properties, where stated, are to be considered as representative of current production and should not be treated as specifications. While all the information presented in this document is believed to be reliable and to represent the best available data on these products. HUNTSMAN MAKES NO WARRANTY OR GUARANTEE OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTY OR MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT OF ANY INTELLECTUAL PROPERTY RIGHT OF ANY THIRD PARTY, OR WARRANTIES AS TO QUALITY OR CORRESPONDENCE WITH PRIOR DESCRIPTION OR SAMPLE, AND ANY USER OF PRODUCTS DESCRIBED HEREIN SHOULD CONDUCT A SUFFICIENT INVESTIGATION TO ESTABLISH THE SUITABILITY OF ANY PRODUCT FOR ITS INTENDED USE AND ASSUMES ALL RISK AND LIABILITY WHATSOEVER RESULTING FROM THE USE OF SUCH PRODUCT, WHETHER USED SINGLY OR IN COMBINATION WITH OTHER SUBSTANCES. Product(s) described in this publication may be hazardous and/or toxic and require special precautions in handling. For all product(s) described herein, the user should obtain from Huntsman detailed information on hazards and/or toxicity, together with proper shipping, handling, and storage procedures, and should comply with all applicable safety and environmental standards. The behavior, hazards and/or toxicity of the product(s) referred to in this publication in manufacturing processes and their suitability in any given end-use environment are dependent upon various conditions such as chemical compatibility, temperature, and other variables, which may not be known to Huntsman. It is the sole responsibility of the user of such product(s) to evaluate the manufacturing circumstances of the final product(s) under actual end-use requirements and to adequately advise and warn future purchasers and users thereof.

www.huntsman.com/performance_products

Copyright © 2013 Huntsman Corporation or an affiliate thereof.

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