Process for the treatment, by an electrochemical route, of compo

Details Process for the treatment, by an electrochemical route, of compo Process for the treatment, by an electrochemical route, of compo

1996-08-01

1998-07-21

Phasge, Arun S.

Electrolysis: processes, compositions used therein, and methods

Electrolytic material treatment

Metal or metal alloy

205723, C22B 700

Patent

active

057830622

ABSTRACT:
The invention relates to a process of treatment for the recovery of the precious metals, such as platinum, rhodium and palladium, contained in various compositions including a layer of oxide(s) which is deposited on a metal support, in particular worn or spent motor vehicle postcombustion catalysts, in which the layer of oxide(s) containing the precious metals is separated from the metal support by an electrochemical route, the composition to be treated forming one of the electrodes employed or being in direct contact with one of the electrodes employed.

REFERENCES:
patent: Re28849 (1976-06-01), Itai et al.
patent: 2093406 (1937-09-01), Aktinson
patent: 4132569 (1979-01-01), Depablo
patent: 4775452 (1988-10-01), Kuninaga et al.
patent: 5279464 (1994-01-01), Heinz
Jom, vol. 40, No. 6, Jun. 1998, Warrendale US,pp. 40-44, XP002000920 Hoffman: "Recovering Platinum-Group metals from Auto Catalysts".

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