Process for recovering precious metals

Details Process for recovering precious metals Process for recovering precious metals

1980-02-12

1981-09-15

Ozaki, G.

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

75108, 75117, 75118R, 75118P, 75119, 75120, 75121, 210688, 423 22, 423 24, 423100, 423122, 423139, C22B 1104, C22B 1500, C22B 1900, C22B 2300

Patent

active

042895316

ABSTRACT:
Platinum, palladium and other precious metals are recovered from aqueous media containing precious metal ions in solution by contacting the metal-containing solution with a proteinaceous material selected from the group consisting of feathers, hair, hoof meal and horn meal to collect the metals in concentrated insoluble form, and recovering metal from the proteinaceous material.

REFERENCES:
patent: 3255172 (1966-06-01), Krajewski et al.
patent: 3719473 (1973-03-01), Waiss et al.
patent: 3931002 (1976-01-01), Ottenheym et al.

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