Title:
【発明の名称】ディーゼルエンジン排ガス浄化用触媒
Document Type and Number:
Japanese Patent JP2891609
Kind Code:
B2
Abstract:
A catalyst for the purification of diesel engine exhaust gas is disclosed which excels in the ability to remove by combustion unburnt hydrocarbons and carbon monoxide as well as minute carbon particles in a wide temperature range from a low temperature zone upward. This catalyst for the purification of diesel engine exhaust gas comprises by having a three-dimensional structure coated with (A) a platinum and/or palladium-carrying refractory inorganic oxide powder obtained by depositing platinum and/or palladium and the catalytically active oxide of at least one metal selected from the group consisting of tungsten, antimony, molybdenum, nickel, vanadium, manganese, iron, bismuth, cobalt, zinc, and alkaline earth metals on (a) a first refractory inorganic oxide powder and (B) a catalyst composition formed of (b) a second refractory inorganic oxide powder and having the platinum and/or palladium contained therein in an amount in the range of from 5 to 50% by weight, based on the amount of (a) the first refractory inorganic oxide powder.
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Inventors:
YOKOMIZO TOMOHIRO
HORIUCHI MAKOTO
HORIUCHI MAKOTO
Application Number:
JP17519193A
Publication Date:
May 17, 1999
Filing Date:
July 15, 1993
Export Citation:
Assignee:
AI SHII TEII KK
International Classes:
B01D53/94; B01J23/42; B01J23/44; B01J23/56; B01J23/58; B01J23/60; B01J23/64; B01J23/89; B01J37/02; B01J23/644; F02B3/06; (IPC1-7): B01J23/58; B01J23/60; B01J23/64; B01J23/89
Attorney, Agent or Firm:
Mikio Hatta