Specialized metallurgical processes – compositions for use therei – Processes – Free metal or alloy reductant contains magnesium
Patent
1982-09-20
1983-08-09
Vertiz, O. R.
Specialized metallurgical processes, compositions for use therei
Processes
Free metal or alloy reductant contains magnesium
423 39, 423 38, 75101R, 75118R, 75121, C22B 1100
Patent
active
043976905
ABSTRACT:
Gold is recovered from a material including gold and molybdenum or tungsten by contacting the material with an aqueous solution of hydrogen iodide and iodine to solubilize the gold without solubilizing the molybdenum or tungsten and recovering the gold from the solution.
REFERENCES:
patent: 3495976 (1970-02-01), Bazilevsky et al.
patent: 3957505 (1976-05-01), Homick et al.
patent: 4190489 (1980-02-01), Bahl et al.
patent: 4260451 (1981-04-01), Schmeckenbecher
patent: 4319922 (1982-03-01), Macdonald
patent: 4319923 (1982-03-01), Falanga et al.
Interrante, M. J., "Reworking Multilayer Ceramic Metal Layers" IBM Technical Disclosure Bulletin vol. 18, #2, Jul. 1975, p. 413.
Lindenborg, G. C., "Method of Recovering Spent Potassium Iodide Solution" Western Electric Technical Digest #45, Jan. 1977, pp. 23-24.
Gingerich Richard G. W.
Martin Brice E.
Vanderpool Clarence D.
GTE Products Corporation
Stoll Robert L.
Vertiz O. R.
Walter Robert E.
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