Method for the recovery of precious metals from ores

Details Method for the recovery of precious metals from ores Method for the recovery of precious metals from ores

1986-08-13

1988-03-15

Stoll, Robert L.

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

75108, 75103, 75109, 75115, 75118R, 423 27, 423 32, 423 34, 423 36, 423 41, 423 42, C22B 1104

Patent

active

047311134

ABSTRACT:
A process for the recovery of precious metals from ore containing the same is disclosed. The process includes the formation of a lixiviant solution including a thiourea compound, urea and an alkali lignin sulfonate. The ore is then exposed to this lixiviant solution to extract the previous metals therefrom, and the dissolved previous metals are then recovered from the solution.

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