Title:
PROCESS FOR PRODUCING CATALYST SUPPORT FOR EXHAUST GAS PURIFICATION AND CATALYST SUPPORT FOR EXHAUST GAS PURIFICATION
Document Type and Number:
WIPO Patent Application WO/2009/001962
Kind Code:
A1
Abstract:
A process for producing a catalyst support for exhaust gas purification; and a catalyst support for exhaust gas purification. The catalyst support such as alumina is prevented from being reduced in heat resistance by the presence of titania and has the function of inhibiting sulfur poisoning due to the titania. The process for producing a catalyst support for exhaust gas purification is characterized by including a treatment in which ammonium ions are adsorbed onto alumina particles in a basic solution and then the resultant alumina particles are brought into contact with a titania sol to thereby adsorb titania particles onto the alumina particles. The catalyst support for exhaust gas purification comprises alumina particles and titania particles adsorbed at least on basic sites in the surface of the alumina particles, and causes no increase in pH when immersed in an ammonium nitrate solution.
Inventors:
TAKESHIMA, Shinichi (1 ToyotachoToyota-sh, Aichi 71, 4718571, JP)
竹島伸一 (〒71 愛知県豊田市トヨタ町１番地トヨタ自動車株式会社内 Aichi, 4718571, JP)
竹島伸一 (〒71 愛知県豊田市トヨタ町１番地トヨタ自動車株式会社内 Aichi, 4718571, JP)
Application Number:
JP2008/061934
Publication Date:
December 31, 2008
Filing Date:
June 25, 2008
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA (1 Toyotacho, Toyota-shi Aichi, 71, 4718571, JP)
トヨタ自動車株式会社 (〒71 愛知県豊田市トヨタ町１番地 Aichi, 4718571, JP)
TAKESHIMA, Shinichi (1 ToyotachoToyota-sh, Aichi 71, 4718571, JP)
トヨタ自動車株式会社 (〒71 愛知県豊田市トヨタ町１番地 Aichi, 4718571, JP)
TAKESHIMA, Shinichi (1 ToyotachoToyota-sh, Aichi 71, 4718571, JP)
International Classes:
B01J21/06; B01D53/86; B01J32/00; B01J37/03
Attorney, Agent or Firm:
AOKI, Atsushi et al. (SEIWA PATENT & LAW, Toranomon 37 Mori Bldg.5-1, Toranomon,3-chome, Minato-ku, Tokyo 23, 1058423, JP)