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flotation sulfide us6827220

EXTRACTING METALS FROM SULFIDE ORES - Electrochemical …

Many approaches were pursued to solve the "sulfide problem" at Broken Hill before selective flotation was developed. The successful technology involves first crushing the ore, typically to a particle size of about 5 to 50 micrometers, to liberate separate grains of the various valuable minerals and worthless gangue components.Then the particles are pulped with water, and the surface of the ...

Flotation of a copper sulphide ore from Okiep using thiol ...

Flotation of a copper sulphide ore from Okiep using thiol collectors and their mixtures The Journal of The South African Institute of Mining and Metallurgy VOLUME 105 NON-REFEREED PAPER MARCH 2005 201 Figure 1—The final cumulative copper recovery vs. collector dosage obtained with C2-X, di-C2-DTP and di-C2-DTC in the flotation of the Okiep copper ore

US6827220B1 - Flotation of sulfide mineral species with ...

This invention is directed to the use of non-sulfur containing compounds as collectors in the froth flotation of certain mineral sulfide and metallic compounds. These non-sulfur-containing compounds may be from natural sources, such as vegetable oils, or synthesized commercial sources. These non-sulfide collectors can be used singularly, in combinations, and in mixtures with known commercial ...

epc kinds of sulfide in froth flotation - uutflukt.nl

sulfide gold ore processing machine best flotation cell. Froth Flotation Department of Chemical Engineering. separating sulfide minerals from silica gangue and from other sulfide Froth flotation is a good example of an engineering system, in that the Equipment Components Table 1 Grade/recovery performance of a hypothetical copper ore flotation process. .

collector used for flotation - asdserraglio.it

Patent US6827220 - Flotation of sulfide mineral species This invention is directed to the use of non-sulfur containing compounds as collectors in the froth flotation of certain mineral sulfide and metallic compounds. These. Contact Supplier Collector for flotation of iron ore - AkzoNobel Mining

Copper Sulfide Flotation - Mineral Processing & Metallurgy

Copper Sulfide Flotation Circuit. The pulp from the Conditioner is treated in a 10-cell "Sub-A" Flotation Machine and a 4-cell "Sub-A" Flotation machine. Sometimes conditioners are not provided; however, their use insures that reagents are thoroughly mixed into the pulp ahead of flotation.

patent flotation machine rcs - zonenzeebungalowverhuur.nl

mineral flotation cell machinery feeder - whitehillstree.com. RCS Flotation machines . The new improved RCS flotation cell is an all purpose flotation machine suitable for all flotation . results, analyze mineral liberation data and develop models for flotation circuit simulation. . Plant capacity 25.000 tpd with 0,35% Cu in the feed.

sm15 chemial reagent flotation - acotherm.co.za

Froth Flotation Process Mineral Processing & Metallurgy. The Froth Flotation Process is about taking advantage of the natural hydrophobicity of liberated well ground minerals/metals and making/playing on making them hydrophobic water-repel individually to carefully separate them from one another and the slurry they are in For this purpose we use chemicals/reagents Frothers MIBC is what allows ...

Depression of iron sulphide flotation in zinc roughers ...

Three methods of improving zinc concentrate grade in the flotation of two massive sulphide ores were investigated. These methods involve the use of oxygen gas conditioning, copper specific collectors or selective polymeric depressants.

Flotation Reagents - Mineral Processing & Metallurgy

Flotation Frothers What is the Function of Frothers. The function of frothers in flotation is that of building the froth which serves as the buoyant medium in the separation of the floatable from the non-floatable minerals. Frothers accomplish this by lowering the surface tension of the liquid which in turn permits air rising through the pulp to accumulate at the surface in bubble form.

Characterization and Flotation of Sulfur from Chalcopyrite ...

Vo1. 2, Characterization and Flotation of Sulfur from Chalcopyrite Concentrate Leaching 3 can serve as the feed for the above-mentioned or similar processes to produce selenium- and tellurium-free sulfur product. Experimental Work Materials. The chalcopyrite …

FROTH FLOTATION : RECENT TRENDS Flotation of Sulphide …

sulphide ore flotation practices in brief and processes adopted in HZL's plants. It also highlights R&D efforts made and new technologies adopted in one of the most complex sulphide ore beneficiation plants to solve metallurgical problems in flotation process. Key Words : Froth flotation, Sulphide flotation, Control system, Flotation

(PDF) Flotation of an Oxidized Copper Sulfide Ore

The influence of grinding chemistry on the flotation behaviour of sulphides minerals has been widely studied. However, its influence on partially oxidised sulphide ores is not well documented.

froth flotation of sulfide minerals - alarmecontroleliege.be

froth flotation of sulfide minerals. Patent US20060000753 - Flotation of sulfide mineral, This invention is directed to the use of non-sulfur containing compounds as collectors in the froth flotation of certain mineral sulfide and metallic compounds These non-sulfur-containing compounds may be …

Thebehaviourofminerals insulphideflotation processes ...

valuable, sulphide gangue, and non-sulphide gangue) is discussed in more detail inthenext section. The recovery-time curves for each size fraction of minerals in the Mount Isarougher bankareshowninFig.2, and the consistency of behaviour fromsizetosizewillbenoted. From the data available on industrial sulphide flotation processes, the fol-

Modell mille khokhar - Henan Mining Machinery Co., Ltd.

Henan MINING Heavy Machinery Co., Ltd., the former Henan First Machinery Factory, founded in Henan Zhengzhou- China machinery manufacturing capital in 1982, is a large joint-stock company specialized in manufacturing heavy mining machinery and civilian machinery. It now has three large production bases

Flotation of mixed copper oxide and sulphide minerals with ...

The ore mined is from a primary copper sulphide deposit with separate additional deposits of copper oxides. In conjunction with Ausmelt Chemicals, Minto is currently investigating options to recover copper oxide and sulphide minerals using flotation by blending their primary sulphide ore with oxide ores.

Sodium sulfide - Wikipedia

Sodium sulfide is the chemical compound with the formula Na 2 S, or more commonly its hydrate Na 2 S·9H 2 O.Both are colorless water-soluble salts that give strongly alkaline solutions. When exposed to moist air, Na 2 S and its hydrates emit hydrogen sulfide, which smells like rotten eggs.Some commercial samples are specified as Na 2 S·xH 2 O, where a weight percentage of Na 2 S is specified.

Froth flotation - Wikipedia

Froth flotation is a process for selectively separating hydrophobic materials from hydrophilic.This is used in mineral processing, paper recycling and waste-water treatment industries. Historically this was first used in the mining industry, where it was one of the great enabling technologies of the 20th century.

selective flotation of gold from sulfides using paraffin oil

Patent US6827220 - Flotation of sulfide mineral species with oils ... Dec 7, 2004 ... a sulfur-containing sulfide mineral flotation promoter selected from the ... sulfide minerals containing silver, gold, platinum, palladium, iridium, rhodium, ..... using oils according to this invention is evidenced by the selective... More details » Get Price

Golden Zenith Mining And Engineering Co.,ltd. Myanmar

Myanmar Real Estate and Construction Monitor - Bid on ... The Myanmar Real Estate and Construction Monitor is the sector's leading source of research, ...

peterson berco mill les - wood4me.be

peterson and experience with the new generation ok mill home >> Products >> peterson and experience with the new generation ok mill We are the leading service provider and supplier in the field of mining equipment and solutions.

FLOTATION OF SULPHIDE ORES - DAVID WESTON

Aug 03, 1971· Flotation of sulphide minerals from their ores is achieved by a process in which two or more conditioning steps are carried out prior to a froth flotation step. The first step comprises conditioning a pulp of the ore in the presence of at least one alkaline agent selected from a group of agents which is defined in the specification which ...

Silver Lead Zinc Ore Processing Method using Flotation

The process consists of selective flotation to produce a mixed silver, lead concentrate for maximum smelter return and a separate zinc concentrate. Over-grinding of silver minerals is detrimental to efficient flotation recovery, so the Flash Flotation Unit-Cell is used in …

Sulphide Gold Ore Treatment by Leaching and Flotation Process

Problem with gold recovery from sulphide ore: How may a mill get the maximum recovery of gold from a sulphide ore, at the least capital cost and at the same time obtain the highest net return. This latter point is most important. In many cases a gold mill using an all-cyanide flowsheet with fine grinding of all the ore will report very low gold content in the tailings particularly on an ...

smaller froth flotation machine gold - oalebakkershoes.nl

Patent US6827220 - Flotation of sulfide mineral species with oils ... Dec 7, 2004 ... A method for beneficiation of a metallic species of gold, silver, copper, palladium, platinum, ... The basic techniques behind froth flotation is to use chemicals to increase the ..... As such they are ideally suited for use in small amounts in combination ...

Flotation Coal Ions - gent1913-1918.be

Flotation Coal Ions. Flotation Collectors - Mineral Processing & Metallurgy. Simply said; a Flotation Collectors is a chemical used to make the surface of minerals, which is metallic, hydrophobic or in layman's term 'afraid of water' or 'water hating' as others like to say.

Alternatives For Sodium Cyanide For Flotation Control ...

&ER& United States Environmental Protection Agency Industrial Environmental Research Laboratory Cincinnati OH 45268 Research and Development EPA-600/S2-81-157 Oct. 1981 Project Summary Alternatives for Sodium Cyanide for Flotation Control E. J. Mezey, D. W. Neuendorf, G. Ray Smithson, Jr., and James F. Shea Cyanide has long been looked upon as the classical poison and …

gold flotation silver - itenders.co.za

Flotation is a method that is widely used in gold ore processing plant to process the rock gold,commonly used in dealing with highly floatable sulfide minerals ... READ MORE The Effect of Collector's Type on Gold and Silver ...

The effect of surface oxidation of copper sulfide minerals ...

The collectorless flotation of copper sulfide minerals is attributed to polysulfides on the surface as a result of mild surface oxidation (Lekki and Drzymala, 1990, Ekmekçi and Demirel, 1997). Metal hydroxides on the mineral surface decrease the flotation of copper sulfide minerals even in the presence of collector (Senior and Trahar, 1991).