Process for the separation of rhodium from organic solutions

Details Process for the separation of rhodium from organic solutions Process for the separation of rhodium from organic solutions

1992-09-02

1993-10-26

Andrews, Melvyn J.

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

75732, 75741, C22B 346

Patent

active

052561887

ABSTRACT:
A process for the separation of rhodium from rhodium containing organic solutions, organic-aqueous mixtures or aqueous solutions containing complexing agents is disclosed. Metallic bismuth, bismuth oxide, bismuth hydroxide or another reducible bismuth compound is added to 50.degree. to 250.degree. C. as a precipitating agent, optionally with a reducing agent, and the precipitate is separated. The corresponding antimony compounds can also be used in place of bismuth.

REFERENCES:
patent: 3545963 (1970-12-01), Wakamatsu et al.
patent: 4273578 (1981-06-01), Nesvadba et al.
patent: 4687514 (1987-08-01), Renner et al.

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