Method for recovering precious metals

Details Method for recovering precious metals Method for recovering precious metals

1981-04-16

1983-02-15

Hearn, Brian E.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Platinum group metal

423 27, 423 29, 75 3, 75101R, 425331, C01G 5500, C22B 300

Patent

active

043740979

ABSTRACT:
Method for extracting precious metals from their ores in which the ore is particulated and mixed with a binding agent to form a paste. The paste material is discharged into a rotary drum at an extruding station where it is pelletized by forcing it through a perforated sidewall of the drum. The pellets are discharged onto a conveyor belt and are transported to a spray station where they are wetted with a lixiviant solution. The lixiviant coated pellets are then dried by exposure to a heated air stream at a drying station as they are transported to an open air curing stockpile. The cured pellets are heaped in a pile and are then washed with a water spray to yield a pregnant solution of a precious metal salt.

REFERENCES:
patent: 588476 (1897-08-01), Rhodes
patent: 2009667 (1935-07-01), Keyers
patent: 2252900 (1941-08-01), Shofer
patent: 2764951 (1956-10-01), Fisher
patent: 3729182 (1973-04-01), Schafer et al.
patent: 3957505 (1976-05-01), Homick et al.
patent: 3988415 (1976-10-01), Barr
patent: 3989800 (1976-11-01), Gansinger
patent: 4029459 (1977-06-01), Schmiedeke
patent: 4056261 (1977-11-01), Darrah
patent: 4177068 (1979-12-01), Balakrishnan et al.
patent: 4220320 (1980-09-01), LeGrange
patent: 4236918 (1980-12-01), Narain
patent: 4256706 (1981-03-01), Heinen

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