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KIYATARAA KOGYO KK
KYATARA KOGYO KK
Original Assignee
KIYATARAA KOGYO KK
KYATARA KOGYO KK
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Application filed by KIYATARAA KOGYO KK, KYATARA KOGYO KKfiledCriticalKIYATARAA KOGYO KK
Priority to JP55158731ApriorityCriticalpatent/JPS607940B2/en
Publication of JPS5781832ApublicationCriticalpatent/JPS5781832A/en
Publication of JPS607940B2publicationCriticalpatent/JPS607940B2/en
PURPOSE: To obtain a catalyst of superior purifying performance and durability by adding cerium and calcium onto an inorg. porous carrier, firing these and forming composite oxide as a catalyst for purification of waste gases.
CONSTITUTION: As a catalyst for purification of waste gases contg. NOX, CO, HC, etc. from internal combustion engines of automobiles, etc., cerium and calcium are added onto an inorg. porous carrier of alumina or the like and are fired to form composite oxide of Ce1-XCaXO2-X (where 0.4≤x≤0.6), after which platinum group metal such as platinum, rhodium or the like is carried. This catalyst purifies the three components in waste gases simultaneously and has durability.
COPYRIGHT: (C)1982,JPO&Japio
JP55158731A1980-11-111980-11-11
Exhaust gas purification catalyst
ExpiredJPS607940B2
(en)