Catalyst for removing the nitrite and/or nitrate content in wate

Details Catalyst for removing the nitrite and/or nitrate content in wate Catalyst for removing the nitrite and/or nitrate content in wate

1990-09-04

1992-06-16

Shine, W. J.

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

Catalyst or precursor therefor

Silicon containing or process of making

502261, 502262, 502325, 502331, 502332, 502333, 502339, B01J 2344, B01J 2346, B01J 2366, B01J 2372

Patent

active

051224968

ABSTRACT:
A catalyst is disclosed made from a porous inorganic carrier material impregnated with a metal component selected from palladium, rhodium, mixtures of palladium and rhodium, and mixtures of palladium and a metal of the copper group, in which the carrier has a bimodal pore radius distribution with a first pore radius distribution maximum in the range of up to 400 .ANG., preferably 50 to 350 .ANG., and with a proportion of at least 20%, relative to the overall pore volume, of macropores having a radius of at least 2,000 .ANG., preferably 5,000 to 20,000 .ANG..

REFERENCES:
patent: 3617579 (1971-11-01), Gunderloy et al.
patent: 4082697 (1978-04-01), Tamm
patent: 4119571 (1978-10-01), Hegedus et al.
patent: 4526870 (1985-07-01), Muller

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