Catalyst for exhaust gas treatment and method of preparing the same
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United States of America Patent
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Mar 9, 1999
Grant Date -
N/A
app pub date -
May 23, 1996
filing date -
Dec 13, 1995
priority date (Note) -
Expired
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Abstract
The disclosed is an exhaust gas treatment catalyst and method therefor, which catalyst comprises a support material selected from the group consisting of elements of Group IIa, Group IIIa, Group IIIb, transition elements and rare earth elements and phosphorus, and an active metal supported on the surface of the support material, improved in high activity and high durability.
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