Leaching refractory gold ores

Details Leaching refractory gold ores Leaching refractory gold ores

1983-09-06

1985-12-17

Doll, John

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group ib metal

423 87, 75101R, 75105, 75118R, C01G 300

Patent

active

045592098

ABSTRACT:
A method is disclosed for leaching a gold ore which is refractory due to the presence of sulphide minerals of arsenic and antimony. The ground ore is leached with cyanide in a pipe reactor at a pressure of between 5 and 8 MPa. The terminal pH value of the pulp is controlled to be 10 or less than 10.

REFERENCES:
patent: 732639 (1903-06-01), Joseph
patent: 801470 (1905-10-01), Merrill
patent: 1002447 (1911-09-01), Porter
patent: 1198011 (1916-09-01), Crowe
patent: 4401468 (1983-08-01), Henderson
patent: 4438076 (1984-03-01), Pietsch et al.

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