High-temperature three-way catalyst for treating automotive exhaust gases
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United States of America Patent
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Aug 20, 1991
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app pub date -
Dec 14, 1989
filing date -
Dec 14, 1989
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Expired
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Abstract
A three-way catalyst for use in treating automotive exhaust gases employs a delta alumina support which contains oxides of cerium plus barium and/or lanthanum, plus at least one Group VIII noble metal from the group consisting of platinum, palladium, rhodium, ruthenium and iridium.
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