Method for selectively dissolving non-ferrous metals contained i

Details Method for selectively dissolving non-ferrous metals contained i Method for selectively dissolving non-ferrous metals contained i

1975-02-26

1976-12-21

Ozaki, G.

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

75101R, 75112, 75114, 75117, 75118R, 75120, 423 40, 423 98, 423109, C22B 1508, C22B 1922, C22B 1304, C22B 1106

Patent

active

039986284

ABSTRACT:
A method for selectively dissolving non-ferrous metals contained in pyritic ores by the steps of crushing the ores, introducing the crushed ore at a temperature above the ambient temperature into a reaction vessel containing a solution of chlorides of a metal having two valance states, and injecting gaseous chlorine into the reaction vessel at a rate such that the oxido-reduction potential of the solution of chlorides remains between 400 and 700 mv during the operation.

REFERENCES:
patent: 843986 (1907-02-01), Baker et al.
patent: 2017330 (1929-02-01), Traphagen
patent: 3876748 (1975-04-01), Roorda et al.
patent: 3880651 (1975-04-01), Queneau et al.

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