Chemistry: electrical and wave energy – Processes and products – Electrostatic field or electrical discharge
Patent
1985-08-16
1987-01-20
Andrews, R. L.
Chemistry: electrical and wave energy
Processes and products
Electrostatic field or electrical discharge
204105R, 204109, 204110, 204114, 204117, 204118, C25C 120
Patent
active
046378650
ABSTRACT:
A process for extracting a precious metal or base metal from a source material containing the metal. The process comprises contacting the source material with an aqueous leaching solution containing a leaching agent comprising an N-halohydantoin compound, thereby producing an aqueous leachate containing said metal. Aqueous leaching compositions, and novel electrowinning and other electrodeposition processes are also disclosed.
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patent: 4543169 (1985-09-01), D'Agostino et al.
Pressure Oxidation Pretreatment of Refractory Gold, R. M. G. S. Berezowsky and D. R. Weir, Minerals and Metallurgical Processing, 1-4, May, 1984.
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Oxidation of Cyanides in Industrial Wastewaters by Ozone, W. M. Bremen, Environmental Progress, 46-51, Feb. 1985, Chapter X, Precipitation, Hamilton, Precipitation, 173-201.
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Gold with Pyrrhotite, McQuiston et al., 13-14; Carlin Gold Mining Company, McQuiston et al., 21-25 with attachment.
Cortez Gold Mines, McQuiston et al., 39-42, with attachment; published 1975, by Society of Mining Engineers, Sold & Silver Cyanidation Plant Practice.
Sergent Rodney H.
Thanstrom Kenneth N.
Andrews R. L.
Great Lakes Chemical Corporation
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