Decomposition of chalcopyrite

Specialized metallurgical processes – compositions for use therei – Processes – Free metal or alloy reductant contains magnesium

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75101R, 75109, 423 48, 423561, 423562, 423563, C22B 1508, C22B 1512

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039855554

ABSTRACT:
Chalcopyrite is decomposed by treatment with aqueous acid solution and a metallic reductant to form either metallic copper or copper sulfide, ferrous iron and hydrogen sulfide.

REFERENCES:
patent: 1523444 (1925-01-01), Nevill et al.
patent: 1643922 (1924-03-01), Christensen
patent: 2647831 (1953-08-01), Allen et al.
patent: 3637371 (1972-01-01), Mackiw et al.
patent: 3798026 (1974-03-01), Milner et al.
patent: 3891522 (1975-06-01), McKay et al.

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