Process for separation and purification of platinum group metals

Details Process for separation and purification of platinum group metals Process for separation and purification of platinum group metals

1984-11-02

1986-02-18

Doll, John

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

423 22, 423 42, 423101, 423140, 75117, 75118R, 75119, 75120, 75121, 210725, 210729, 564 23, C22B 1104

Patent

active

045712662

ABSTRACT:
There is described a process for the separation and purification of the platinum group metals from base metal out of acidic aqueous solutions. For this purpose there is used a substituted thiourea of the formula

REFERENCES:
patent: 2342785 (1944-02-01), Block et al.
patent: 3748356 (1973-07-01), Wellinga et al.
patent: 3994719 (1976-11-01), Corte et al.
patent: 4368073 (1983-01-01), Breister et al.

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