separation pyrite sulfide

separation pyrite sulfide

Effect of sodium hexametaphosphate on separation of serpentine

Sodium hexametaphosphate disperses serpentine slime very well. It is widely used in mineral processing as a flotation regulator and has been applied in the separation of serpentine sulfide ore. Furthermore, there are a number of studies reporting the mechanism of sodium hexametaphosphate.

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Application of Carrier Micro Encapsulation in Coal Preparation and Sulfide mineral processing

cause the acid rain formation. The separation of pyrite from metal sulfide ore is also recommended to economically extract copper or other metal. Therefore, pyrite is rejected as a gangue mineral from the valuable minerals by physical separation

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EP0568672B1 - Flotation separation of arsenopyrite from

On addition of a collector the pyrite is rendered floatable, enabling froth flotation to achieve a concentrate rich in pyrite and tailings rich in arsenopyrite. Arsenopyrite is separated from a mixture with pyrite by contacting the mixture with a sulfitic agent providing HSO3- ions at elevated temperature and pH below about 8 for a period ...

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US3847357A - Separation of copper minerals from pyrite - Google

A process of separating copper minerals from pyrite wherein a flotation concentrate containing copper minerals and pyrite is reground in the presence of lime and subsequently conditioned at a pH of 12.0 or more for a predetermined period sufficient to depress the ...

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Separation of fine arsenopyrite and sulfide minerals using combination depressants

Arsenopyrite removal from pyrite concentrate using pulsating high gradient magnetic separation Evaluation of graphite depressants in a poly-metallic sulfide flotation circuit Investigations on fine particle separation using an electrostatic nozzle scrubber ...

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Basic principles of selecting separation methods for sulfide minerals having similar properties in complex ore concentrates | SpringerLink

It has been studied how species of pyrite and nonferrous metal sulfides influence oxidation, floatability and depression. The selected methods to separate complex ore concentrates provide for multistage flotation circuit, with recovery of rebellious species into rough concentrates and products and their separation in different cycles later on.

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Pyrite - Wikipedia

The mineral pyrite (/ ˈpaɪraɪt /), or iron pyrite, also known as fool's gold, is an iron sulfide with the chemical formula Fe S 2 (iron (II) disulfide). Pyrite is the most abundant sulfide mineral. Pyrite's metallic luster and pale brass-yellow hue give it a superficial resemblance to gold, …

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selective flotation gold of chalcopyrite from pyrite healing

Selective separation of chalcopyrite from pyrite with a ... 20/09/2019 As shown, the flotation of pyrite was depressed much more than that of chalcopyrite in the tested pH range of 3–12, indicating that PGA had a much greater affinity towards the surface of pyrite ...

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Surface chemical studies on selective separation of pyrite

Selective separation of pyrite and galena from mixture of the two minerals was achieved through interaction with cells and metabolic products from a culture of Paenibacillus polymyxa. Adsorption of cells and metabolic products onto minerals and electrokinetic studies of minerals after interaction wi …

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FLOTATION SEPARATION OF ARSENOPYRITE FROM PYRITE

In many parts of the world, pyrite and arsenopyrite occur together in sulfide ores either as the only sulfide minerals or in conjunction with other valuable sulfides. It is desirable to produce separate concentrates of the various sulfide minerals, including pyrite and arsenopyrite so that the contained desirable metals can be recovered economically.

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Selective separation of galena and sphalerite from pyrite-rich

Consequently, selective separation of lead-zinc sulfide minerals from pyrite requires appropriate selective depressant and collectors. Different reagents are usually applied in the selective separation and depression of iron sulfide minerals; they include inorganic

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Effect of calcium hypochlorite on flotation separation of

Feb 01, 2019 · Furthermore, the efficient separation of covellite from pyrite is advantageous for the recovery of copper and enhances its economic value. Therefore, an effective method for the separation of covellite from pyrite by flotation is required. The selective flotation separation of sulfide minerals mostly relies on the use of various depressants.

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PDF) Selective flotation of chalcopyrite from pyrite

Pyrite, a gangue mineral, is commonly associated with valuable base metal sulfide minerals and the separation of pyrite from these valuable sulfide minerals by flotation is difficult.

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Control of grinding conditions in the flotation of galena and

Pyrite as the most abundant sulfide mineral is often associated with valuable sulfide minerals, coal and gold. It is very important to study its electrochemical behavior in the flotation process.

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Mining Industry | Copper Sulfide Ore and Flotation Process

Cyanide and lime have weaker inhibition on them, so a large amount of lime can be added to inhibit pyrite in the separation of copper and sulfur without seriously affecting the floatability of copper minerals.

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Sulphide Flotation - an overview | ScienceDirect Topics

After solid–liquor separation, the gold and PGMs were recovered by sulfide precipitation using NaHS or by activated carbon. The copper was recovered using conventional solvent extraction and electrowinning techniques. Overall recoveries were Cu 99.6%, Ni 98.9%, Co …

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WO1993010904A1 - Flotation separation of arsenopyrite from

Arsenopyrite is separated from a mixture with pyrite by contacting the mixture with a sulfitic agent providing HSO3- ions at elevated temperature and pH below about 8 for a period sufficient to impart a selective depression property to the arsenopyrite.

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PDF Effect of Ultrasonic Pre-Treatment and Aeration on

Pyrite as an iron sulfide mineral is often in association with chalcopyrite. Pyrite is commonly considered as a gangue in chalcopyrite flotation. It is well known [1-4] that, galvanic interaction between chalcopyrite and pyrite affects floatability of the minerals, making it difficult to effectively separate chalcopyrite from pyrite.

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The separation of cobaltite from chalcopyrite and pyrite

May 01, 1976 · Thus SDDP is superior to SDS and, in the presence of NagS, possesses good selective properties which qualify it as a selective and an effective collector in the separation of cobaltite from other associated sulfide minerals such as chalcopyrite and pyrite. 331 Fig. 3.

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Pyrite depressant useful in floation separation - FUERSTENAU

The present invention relates to a process for separating pyrite from sulfide ores and coal during flotation separation which comprises the depressing of pyrite with from about 0.05 to 0.75 kilograms Pyrite depressant useful in floation separation - FUERSTENAU; DOUGLAS W.

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