Specialized metallurgical processes – compositions for use therei – Processes – Free metal or alloy reductant contains magnesium
Patent
1989-03-08
1990-09-25
Andrews, Melvyn J.
Specialized metallurgical processes, compositions for use therei
Processes
Free metal or alloy reductant contains magnesium
75653, C22B 1514
Patent
active
049591029
ABSTRACT:
A method of melting and refining copper in the combustion chamber of a vertical shaft furnace which includes a step of superheating the melt so that slag formed by oxidized impurities can flow freely from the furnace.
REFERENCES:
patent: 3715203 (1973-02-01), De Bie
patent: 3884680 (1975-05-01), De Bie
patent: 4642047 (1987-02-01), Gitman
Betterton Bruce E.
Clarkson James H.
Foster Richard B.
Rhodes Kenneth R.
Andrews Melvyn J.
Myers, Jr. George C.
Southwire Company
Tate Stanley L.
Wallis, Jr. James W.
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