Specialized metallurgical processes – compositions for use therei – Processes – Free metal or alloy reductant contains magnesium
Patent
1990-12-13
1992-03-17
Andrews, Melvyn J.
Specialized metallurgical processes, compositions for use therei
Processes
Free metal or alloy reductant contains magnesium
C22B 308
Patent
active
050964860
ABSTRACT:
A process for extracting silver, copper, zinc, arsenic and iron from sulfide materials by leaching under relatively mild oxygen pressure and temperature conditions with sulfuric acid and sodium nitrite.
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Anderson Corby G.
Harrison Kevin D.
Krys Leo E.
Andrews Melvyn J.
Sunshine Precious Metals Incorporated
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