Precious metal recovery using UV ozone

Details Precious metal recovery using UV ozone Precious metal recovery using UV ozone

1985-10-08

1987-02-10

Doll, John

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

75118R, 75121, 423 22, 423 27, 423 29, 210760, 422 24, C22B 300

Patent

active

046421343

ABSTRACT:
A method for recovering precious metals from ore is disclosed. Ore is treated in an acidic slurry with an activated oxygen mixture obtained from an ultraviolet light ozone generator. The activated oxygen frees chemically bonded precious metals creating an expanded, hydrated ore so that the metals may be oxidized and leached out using standard leaching techniques. In addition, the activated oxygen aids in the leaching process. Substantial increases in the amount of precious metal recovered from a given amount of ore result.

REFERENCES:
patent: 955318 (1910-04-01), Collins
patent: 976043 (1910-11-01), Collins
patent: 976044 (1910-11-01), Collins
patent: 3574600 (1971-04-01), Scheiner et al.
patent: 4155983 (1979-05-01), Zaleski
patent: 4230571 (1980-10-01), Dadd

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