Preparation of three-way catalysts with highly dispersed ceria
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United States of America Patent
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Nov 12, 1991
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N/A
app pub date -
Aug 31, 1990
filing date -
Aug 31, 1990
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Expired
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Abstract
Improved three-way catalysts for use in converting the exhaust gases from internal combustion engines include ceria supported by an alumina or other metal oxide and the ceria in the freshly prepared catalysts is in the form of crystallites having a size less than 50 .ANG. as measured by X-ray diffraction.
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