Method of regenerating inactive and poisoned platinum catalysts

Details Method of regenerating inactive and poisoned platinum catalysts Method of regenerating inactive and poisoned platinum catalysts

1991-07-16

1992-09-01

Konopka, Paul E.

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,...

423387, 502 27, B01J 2396, B01J 3864, L01B 2120

Patent

active

051438720

ABSTRACT:
A method of regenerating noble metal catalysyts used for the catalytic reduction of nitrogen oxide with hydrogen, wherein the noble metal catalyst is treated with an aqueous alkaline solution having a pH of more than 9.

REFERENCES:
patent: 3060133 (1962-10-01), Jocker et al.
patent: 3214385 (1965-10-01), Kolyar et al.
patent: 3959382 (1976-05-01), Yeh et al.
patent: 4164481 (1979-08-01), Ma et al.
patent: 4190554 (1980-02-01), Yamauchi et al.
patent: 4659683 (1987-04-01), Buffar et al.

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