Catalyst Carrier and Exhaust Gas Purifying Catalyst
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United States of America Patent
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Issued Date -
Jul 9, 2015
app pub date -
Jul 12, 2013
filing date -
Aug 31, 2012
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Abstract
Provided is a catalyst carrier which contains an apatite-type composite oxide and provides a catalyst carrier which can enhance NOx purifying performance by means of improvement of phosphorus poisoning. Provided is a catalyst carrier which contains a composite oxide expressed by the following composition formula: LaxPryM10.00-x-y(Si6.00-wNw)O27.00-z (wherein 2.50≦x≦6.00, 2.50≦y≦6.00, 5.00≦x+y≦9.50, 0.00≦z≦3.00, 0.00≦w≦3.00, M represents one or two or more elements selected from alkaline earth metal elements and rare earth elements, and N represents at least one kind of cation element).
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