Method to treat rhodium-containing solutions

Details Method to treat rhodium-containing solutions Method to treat rhodium-containing solutions

1988-08-01

1990-07-31

Griffin, Ronald W.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Platinum group metal

536121, 536124, 502 24, 502 26, C01G 5500, C08C 200

Patent

active

049449265

ABSTRACT:
The present invention provides a method to treat a rhodium containing solution which is derived from the catalytic hydrogenation of nitrile rubber.
An additive selected from thiourea, polysaccharide and carbon black is used to cause a rhodium-containing precipitate. The precipitate is then separated from the solution by, for example, filtration or centrifugation.

REFERENCES:
patent: 4413118 (1983-11-01), Roberts et al.
patent: 4464515 (1984-08-01), Rempel et al.

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