Catalyst in the form of a plate for nitrogen oxide reduction in

Details Catalyst in the form of a plate for nitrogen oxide reduction in Catalyst in the form of a plate for nitrogen oxide reduction in

1987-09-01

1988-09-13

Stallard, Wayland

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

Catalyst or precursor therefor

Phosphorus or compound containing same

502213, 502217, 502219, 502221, 502527, B01J 27043, B01J 27053, B01J 27185, B01J 27188

Patent

active

047710268

ABSTRACT:
The invention relates to a catalyst in the form of a plate for nitrogen oxide reduction in exhaust gases manufactured by molding granular Cr.sub.2 O.sub.3 or a mixture of granular Fe.sub.2 O.sub.3 with Cr.sub.2 O.sub.3 with phosphoric acid or sulphuric acid as binder, characterized by the fact that a combination is molded of separately prepared mixtures of Cr.sub.2 O.sub.3 or (Fe.sub.2 O.sub.3 +Cr.sub.2 O.sub.3) with phosphoric acid as binder, and of Cr.sub.2 O.sub.3 or (Fe.sub.2 O.sub.3 +Cr.sub.2 O.sub.3) with sulphuric acid as binder.

REFERENCES:
patent: 948947 (1910-02-01), Wrampelmeier
patent: 4364842 (1982-12-01), McDaniel et al.
patent: 4446250 (1984-05-01), Niwa et al.
patent: 4672052 (1987-06-01), Wagener et al.
patent: 4695559 (1987-09-01), Wagener et al.
patent: 4721699 (1988-01-01), Wagener et al.

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