Platinum group metal recovery with a polyamine

Details Platinum group metal recovery with a polyamine Platinum group metal recovery with a polyamine

1991-09-10

1992-11-24

Morris, Theodore

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Platinum group metal

4232135, 423351, 75720, 75723, C01G 5500

Patent

active

051659018

ABSTRACT:
Rhodium and certain other PGM's in oxidation state III complex with chloride is precipitated from a solution by mixing with a polyamine, especially diethylene-triamine, in the presence of a protonating agent for the polyamine. High selectivity and high yields, in comparison to known reagents, are observed.

REFERENCES:
patent: 3960549 (1976-06-01), MacGregor
patent: 4571265 (1986-02-01), Konig et al.
patent: 4571266 (1986-02-01), Konig et al.
patent: 5028727 (1991-07-01), Verbeek et al.
patent: 5034553 (1991-07-01), Verbeek et al.
WO 82/00145, Platinum II Complexes & Antineoplastic Agents Containing Same as Effective Ingredients, (Abstract only), Jan. 21, 1982.

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