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Pyrite depressants useful in the separation of pyrite from ...

The conventional first is followed by a second stage which uses an organic colloid as a for the coal. The use of polyhydroxy alkyl xanthate to depress the of in coal is taught in U.S. Pat. No. 4,211,642.

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US4830740A - Pyrite depressants useful in the separation ...

The separation of coal from is enhanced by the use of an effective amount of a polymeric acid or salt thereof as a in conventional processes. The polymeric acid may be a carboxylic or sulfonic acid. An example of a salt of a polymeric acid …

PDF Diethylenetriamine depression of Cu-activated pyrite ...

of is very important in sulphide ore . This paper investigates the role of non-toxic on the of . Starch and meta bisulphite were used as a ...

Flotation and Adsorption of a New Polysaccharide ...

and Adsorption of a New Polysaccharide on and Talc in the Presence of a Pre-Adsorbed Xanthate Collector Wei Deng 1,2, Longhua Xu 3,4,5,*, Jia Tian 2, Yuehua Hu 4 and Yuexin Han 1,* 1 College of Resources and Civil Engineering, Northeastern University, Shenyang 110819, China [email protected]

Selective separation of chalcopyrite from pyrite with a ...

in copper ore often requires large doses of inorganic that lead to high toxicity, high costs, and low selectivity. Thus, this study offers a novel , polyglutamic acid PGA, in the selective of chalcopyrite with xanthate as a collector. The and adsorption mechanism on ...

Depressant - Florrea

used as a to depress Sphalerite and in the of Pb/Zn, Cu/Zn, and Cu/Pb/Zn ores. Florrea D113: sodium bisulphite: Florrea D114: sodium etabisulphite: can be used in conjunction with either lime or Na2S for of during of copper-zinc ores.

US4826588A - Pyrite depressants useful in the separation ...

The is a hydrophilic nitrogen-sulfur-containing compound. The separation of coal from during a froth process is enhanced by the use of an effective amount of a .

Floatation of Ok Tedi Pyrite - AusIMM

Description Pyrite is a significant gangue sulphide mineral in the Ok Tedi copper ore. Its presence in the flotation concentrate is not entirely desirable since it lowers the grade of the final copper concentrate. Lime depression of the pyrite has been practiced with some success.

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