Catalyst in the form of a plate for nitrogen oxide reduction in exhaust gases
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United States of America Patent
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Sep 13, 1988
Issued Date -
N/A
app pub date -
Sep 1, 1987
filing date -
Oct 2, 1986
priority date (Note) -
Expired
status (Latency Note)
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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.
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