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pyrite floatation process

A review on electrochemical behavior of pyrite in the

Mar 25, 2017· There are some researches which investigate various interactions in the pyrite flotation, so this review is intended to provide further insights into the pyrite flotation process and to address important points for the control of the process and its optimization in order to enhance the product quality and to reduce process costs.

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(PDF) Pyrite Flotation: A Review ResearchGate

It was found that copper ions activate the pyrite flotation due to the formation of copper xanthate and dixanthogen. which might manipulate process efficiency applied on the target mineral

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Pyrite Flotation Froth Flotation (Sulphide & Oxide

Can you list the factors affects the floatability of pyrite from refractory low grade ore.I used a Wemco lab flotation cell and aimed on analysing factors like collector dosages (PAX), Activator (Copper sulphate),MIBC,pH and others like pulp density and particle size (70 and 150 microns) .However

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(PDF) A review on electrochemical behavior of pyrite in

Pyrite as the most abundant sulfide mineral on the Earth has little economic value and in flotation processes it is often rejected to tailings, unless it contains significant amounts of valuable metals to be recovered.Over several decades, extensive studies have been conducted on the electrochemical behavior of pyrite in the flotation process

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A study on selective flotation in low and high pyritic

flotation process it is essential to take the role of pyrite into account, not only for being aware of its extremely detrimental effects on grade and recovery but also parti-

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Copper and Pyrite Separation by Selective and Sequential

Metallurgical ContentThe Problem with copper-pyrite oresThe copper pyrite separation Process FlowsheetCrushing circuit of a copper pyrite oreCopper pyrite ore Grinding circuit Flotation process of Copper-Pyrite mineralsSampling The Problem with copper-pyrite ores This flowsheet, is designed for the treatment of a copper-iron sulfide ore containing appreciable values in gold. The major portion

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(PDF) Electrochemical properties of pyrite, pyrrhotite

Therefore, it is conditions in the flotation of chalcopyrite and its separation from pyrite International Journal of Mineral Processing, vol. 69, 2003a. pp. 87–100. necessary that the flotation process is conducted during the preliminary stages of oxidation.

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(PDF) Pyrite Flotation: A Review ResearchGate

It was found that copper ions activate the pyrite flotation due to the formation of copper xanthate and dixanthogen. which might manipulate process efficiency applied on the target mineral

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Electrolytic flotation of pyrite Kydros 1994 Journal

Electrolytic flotation, a rather unconventional flotation technique used in effluent treatment, was investigated on pyrite; the process was enhanced by xanthate and also a cationic collector. This was then compared with classical floatability experiments.

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Copper and Pyrite Separation by Selective and Sequential

Metallurgical ContentThe Problem with copper-pyrite oresThe copper pyrite separation Process FlowsheetCrushing circuit of a copper pyrite oreCopper pyrite ore Grinding circuit Flotation process of Copper-Pyrite mineralsSampling The Problem with copper-pyrite

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[PDF] A study on the effect of active pyrite on flotation

Active pyrite is one of the most undesirable phenomena in the flotation of porphyry copper ores. Misreported pyrite into copper concentrates decreased the grade and recovery of copper. In this study, the effective parameters on the flotation process including grinding condition and chemical parameters were evaluated in order to decrease the active pyrite recovery by flotation.

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(PDF) A review on electrochemical behavior of pyrite in

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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(PDF) Electrochemical properties of pyrite, pyrrhotite

Therefore, it is conditions in the flotation of chalcopyrite and its separation from pyrite International Journal of Mineral Processing, vol. 69, 2003a. pp. 87–100. necessary that the flotation process is conducted during the preliminary stages of oxidation.

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US5171428A Flotation separation of arsenopyrite from

Arsenopyrite is separated from a mixture with pyrite by contacting the mixture with a sulfitic agent providing HSO 3 ions at elevated temperature and pH below about 8 for a period sufficient to impart a selective depression property to the arsenopyrite. On addition of a collector the pyrite is rendered floatable, enabling froth flotation to achieve a concentrate rich in pyrite and tailings

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PYRITE ROASTING, AN ALTERNATIVE TO SULPHUR BURNING

process relevant figures are the sulphur content and the particle grain size. Additional important process figures are the reaction temperature and the concentrate throughput. The pyrite concentrates can be classified as: Type Composition Grain Size Pyrite Concentrate (flotation) S 47-48 wt%; Fe 42–43 wt% fine particles 55% < 45µm

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The role of sodium metabisulphite in depressing pyrite in

In response to the high pyrite recovery in copper flotation using seawater, this study investigated the role of sodium metabisulphite (MBS), a widely used pyrite depressant, in depressing the flotation of copper-activated pyrite to identify a solution to maximising pyrite rejection.

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ROLE OF STARCH AND METABISUPHITE ON PURE PYRITE

Role of starch and metabisulphite on pure pyrite and pyritic copper ore flotation 43 occurred with 1.7 mg/ dm3, while 21% depression occurred with the same dosages of starch at pH 6.5 where pyrite flotation is expected to be weak at pH 10.

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FLOTATION OF PYRITE FROM COAL SECRETARY OF THE

Pyrite is removed from coal by means of a two-stage froth flotation process. In the first stage, coarse pyrite is removed as underflow in a conventional froth flotation operation. In the second stage, the froth product from the first stage is subjected to froth flotation using a coal flotation depressant and a pyrite flotation collector

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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. On addition of a collector the pyrite is rendered floatable, enabling froth flotation to achieve a concentrate rich in pyrite and tailings

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THE SEPARATION OF PYRITE AND ARSENOPYRITE BY FLOTATION

The aim of the research programme is to investigate the potential of flotation for the separation of arsenopyrite and pyrite minerals. The efficient separation of pyrite and arsenopyrite by a cheap process such as flotation has long been recognized as a desirable technological goal for ores containing both minerals. A series of novel collectors

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Minerals Free Full-Text A Novel Method to Limit the

A novel method to limit the adverse effect of fine serpentine on the flotation of pyrite was investigated in this paper. The flotation results showed that coarser serpentine possessed a weaker depression effect on the pyrite flotation process, and the use of KAl(SO4)2·12H2O could efficiently limit the detrimental effect of fine serpentine on pyrite with a maximum increase of pyrite recovery

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