Process for removal of the catalytic coating material from...

Details Process for removal of the catalytic coating material from... Process for removal of the catalytic coating material from...

C - Chemistry, Metallurgy

22

B

C22B 11/00 (2006.01)

Patent

CA 2562260

Process for recovering catalyst coating material from a supporting structure, such as, for example, a catalytic converter assembly having a metal mantle, including contacting the catalytic coating material with a sodium, potassium or ammonium hydroxide-containing compound at an elevated temperature; and rinsing with a liquid and filtering the solid catalyst coating material from the solution.

L'invention concerne un procédé permettant de récupérer du matériau de revêtement de catalyseur sur une structure support, par exemple, un ensemble convertisseur catalytique doté d'une enveloppe métallique, qui consiste notamment à mettre le matériau de revêtement de catalyseur en contact avec un composé contenant de l'hydroxyde de sodium, de potassium ou d'ammonium à une température élevée; et à rincer avec un liquide et filtrer le matériau de revêtement de catalyseur solide de la solution.

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