Zeolite Y-based catalytic composition which can be used in treating oxygenated effluent containing nitrogen oxides, its preparation and process for use
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United States of America Patent
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Nov 29, 1994
Grant Date -
N/A
app pub date -
Feb 28, 1992
filing date -
Jul 12, 1989
priority date (Note) -
In Force
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Importance
Abstract
Catalytic compositions based on zeolite Y for use in the treatment of oxygenated effluents containing NO.sub.x, comprising 70 to 90% of zeolite NH.sub.4 Y having a specific surface between 750 and 950 m.sup.2 /g exchanged to cupric ions, wherein the copper content is between 2 and 12% relative to the weight of the zeolite; and 10 to 30% of a binder are disclosed. Processes for the preparation of such catalytic compositions are also disclosed.
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