Process for reactivating catalyst systems containing a platinum

Details Process for reactivating catalyst systems containing a platinum Process for reactivating catalyst systems containing a platinum

1997-05-02

2000-06-06

Niebling, John F.

Catalyst, solid sorbent, or support therefor: product or process

Regenerating or rehabilitating catalyst or sorbent

Treating with a liquid or treating in a liquid phase,...

502 29, 502 33, 502 25, 502 30, 502 32, B01J 2034

Patent

active

060718439

ABSTRACT:
Platinum metal-containing catalyst systems, which comprise at least one platinum metal, a co-catalyst and other salts, and which are used for the production of diaryl carbonates by the oxidative reaction of aromatic hydroxy compounds with carbon monoxide, can be reactivated by treating the deactivated catalyst system in the liquid phase with an oxidising agent, removing the excess oxidising agent, and reacting the reactivated catalyst system with a carboxylate or diketonate.

REFERENCES:
patent: 3488295 (1970-01-01), Sennewald et al.
patent: 3700729 (1972-10-01), Fenton
patent: 5035777 (1991-07-01), Gardner et al.

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