Specialized metallurgical processes – compositions for use therei – Processes – Free metal or alloy reductant contains magnesium
Patent
1980-10-17
1981-12-22
Rutledge, L. Dewayne
Specialized metallurgical processes, compositions for use therei
Processes
Free metal or alloy reductant contains magnesium
751335, 75176, C22C 3300
Patent
active
043069053
ABSTRACT:
Ferrochromium alloys are prepared by vacuum reduction of chromite concentrate by means of a carbonaceous reductant, followed by melting in the presence of slag-forming materials to produce the alloy and a separate slag phase. Preferably, CaO is employed as an ingredient in both the reduction step and the melting step.
REFERENCES:
patent: 1346187 (1920-07-01), Fahrenwald
patent: 2763918 (1956-09-01), Megill
Khalafalla Sanaa E.
Pahlman John E.
Brown William S.
Gardiner Donald A.
Hey David A.
Rutledge L. Dewayne
The United States of America as represented by the Secretary of
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