US 7,585,807 B2
Production of catalyst for removal of introgen oxides
Yasuyoshi Kato, Kure (Japan); Naomi Imada, Kure (Japan); and Yoshinori Nagai, Kure (Japan)
Assigned to Babcock-Hitachi Kabushiki Kaisha, Tokyo (Japan)
Appl. No. 10/506,444
PCT Filed Feb. 28, 2003, PCT No. PCT/JP03/02326
§ 371(c)(1), (2), (4) Date Feb. 04, 2005,
PCT Pub. No. WO03/074170, PCT Pub. Date Sep. 12, 2003.
Claims priority of application No. 2002-056240 (JP), filed on Mar. 01, 2002.
Prior Publication US 2005/0130836 A1, Jun. 16, 2005
Int. Cl. B01J 21/08 (2006.01); B01J 23/10 (2006.01)
U.S. Cl. 502—242  [502/304] 12 Claims
OG exemplary drawing
 
1. A method for producing a catalyst for removing nitrogen oxides which comprises dispersing a hydrated titanium oxide or dried material thereof, tungstic acid or a salt thereof, and a sol-like material formed by dispersing cerium dioxide in a dispersion medium with an aqueous medium to form a catalyst slurry or paste, supporting the catalyst slurry or paste on a catalyst carrier, and then calcinating the carrier.