Title:
【発明の名称】被毒防止体、被毒防止層付触媒及び排気ガス浄化装置
Document Type and Number:
Japanese Patent JP2897367
Kind Code:
B2
Abstract:
Poisoning-preventive and poisoning-resistant materials are described, including: a poisoning-preventive layer-possessing support comprising a support and, formed thereon, a poisoning-preventive layer having a compound containing at least one element selected from the Group IIa element of the periodic table; a poisoning-resistant catalyst for catalytic converter, which comprises a support, a noble metal catalytic component deposited on the support, and a poisoning-preventive layer formed on the side of the catalytic component exposed to an exhaust gas, said poisoning-preventive layer having a compound containing at least one element selected from the Group IIa elements of the periodic table; an exhaust gas converter device comprising a poisoning-preventive material provided on the exhaust gas inlet side, said poisoning-preventive material being either a ceramic material or the poisoning-preventive layer-possessing support as described above, said ceramic material comprising a compound containing at least one element selected from the Group IIa elements of the periodic table or comprising said compound and other ceramic compound, and a catalyst provided on the exhaust gas outlet side, said catalyst comprising a support and a noble metal catalytic component deposited on the support; and a poisoning-preventive gasoline composition comprising a gasoline and a compound containing at least one element selected from the Group IIa elements of the periodic table.
Inventors:
KOJIMA TAKAO
MINOWA TAKESHI
YAMANO MASARU
MINOWA TAKESHI
YAMANO MASARU
Application Number:
JP20837390A
Publication Date:
May 31, 1999
Filing Date:
August 06, 1990
Export Citation:
Assignee:
NIPPON TOKUSHU TOGYO KK
International Classes:
B01D53/86; B01J23/40; B01J23/58; B01J33/00; B01J35/04; B01J37/02; C10L1/12; C10L1/188; B01D53/94; C10L1/30; C10L10/02; C10L10/06; F01N3/20; (IPC1-7): B01J33/00; B01J23/40; B01J23/58; B01J35/04; B01J37/02
Domestic Patent References:
| JP57156018A | ||||
| JP5579046A | ||||
| JP2222830A | ||||
| JP50104193A | ||||
| JP2276956A | ||||
| JP52122290A | ||||
| JP54137495A |
Attorney, Agent or Firm:
Kojima Kiyoji