CATALYST FOR EXHAUST GAS PURIFICATION AND METHOD FOR PRODUCING THE SAME

WIPO Patent Application WO/2007/132829

A1

Disclosed is a catalyst for exhaust gas purification wherein Rh is supported by a catalyst carrier for Rh. The catalyst for exhaust gas purification is produced by using a catalyst component A having a CO2 adsorption per unit weight of 25-60 μmol g-1 and a CO2 adsorption per unit specific surface area of 0.2-2.3 μmol m-2 g1, a catalyst component B and a binder. The catalyst for exhaust gas purification has a CO2 adsorption per unit weight of 18-60 μmol g-1 and a CO2 adsorption per unit specific surface area of 0.2-2.5μmol m-2 g1, and the ratio of the CO2 adsorption per unit weight of the catalyst to the CO2 adsorption per unit weight of the catalyst component A [namely, (CO2 adsorption of the catalyst/CO2 adsorption of the catalyst component A) Œ 100] is not less than 75%.

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MORIKAWA AKIRA (JP)
TANABE TOSHITAKA (JP)
TAKAHASHI NAOKI (JP)
YOSHIDA TAKERU (JP)
SATO AKEMI (JP)

PCT/JP2007/059915

November 22, 2007

May 15, 2007

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TOYOTA MOTOR CO LTD (JP)
MORIKAWA AKIRA (JP)
TANABE TOSHITAKA (JP)
TAKAHASHI NAOKI (JP)
YOSHIDA TAKERU (JP)
SATO AKEMI (JP)

B01J23/63; B01D53/94; F01N3/10

JP2006035019A	2006-02-09
JP2004174490A	2004-06-24
JP2002518171A	2002-06-25
JPH10286462A	1998-10-27
JPH10182155A	1998-07-07
JP2004230241A	2004-08-19
JPH01238347A	1989-09-22
JP2004340637A	2004-12-02

See also references of EP 2025398A4

NAGAHAMA, Noriaki (Muraki Bldg. 8th Floor 2-10-10,Yaesu, Chuo-ku, Tokyo 28, JP)

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