Title:
CERIUM OXIDE-ZIRCONIUM OXIDE COMPOSITE OXIDE AND METHOD FOR PRODUCING THE SAME
Document Type and Number:
WIPO Patent Application WO/2011/108457
Kind Code:
A1
Abstract:
Provided is a cerium oxide-zirconium oxide composite oxide which has a large low-temperature OSC and an optimal OSC, and also provided is a simple method for producing the cerium oxide-zirconium oxide composite oxide. Specifically, a cerium oxide-zirconium oxide composite oxide is provided in which (1) a cerium-zirconium composite oxide derived by the melt method and (2) a cerium dioxide derived by the wet method are mixed, and a method for producing the cerium oxide-zirconium oxide composite oxide is provided in which the cerium-zirconium composite oxide derived by the melt method is dispersed in a cerium-containing solution and neutralized, and the product is then heated.
Inventors:
YAGISHITA SADAHIRO (JP)
OMURA NORIYUKI (JP)
TATSUMI AKIKO (JP)
OMURA NORIYUKI (JP)
TATSUMI AKIKO (JP)
Application Number:
PCT/JP2011/054309
Publication Date:
September 09, 2011
Filing Date:
February 25, 2011
Export Citation:
Assignee:
DAIICHI KIGENSO KAGAKU KOGYO (JP)
YAGISHITA SADAHIRO (JP)
OMURA NORIYUKI (JP)
TATSUMI AKIKO (JP)
YAGISHITA SADAHIRO (JP)
OMURA NORIYUKI (JP)
TATSUMI AKIKO (JP)
International Classes:
C01G25/00; B01D53/86; B01D53/94; C01F17/235
Domestic Patent References:
| WO2008004452A1 | 2008-01-10 | |||
| WO2006030763A1 | 2006-03-23 | |||
| WO2008093471A1 | 2008-08-07 | |||
| WO2010064497A1 | 2010-06-10 | |||
| WO2006030763A1 | 2006-03-23 |
Foreign References:
| JP2005314134A | 2005-11-10 | |||
| JP2008013423A | 2008-01-24 | |||
| JP2005314134A | 2005-11-10 |
Other References:
"Kojien", 15 October 1979
See also references of EP 2543638A4
See also references of EP 2543638A4
Attorney, Agent or Firm:
SAEGUSA & PARTNERS (JP)
Patent business corporation 3 Edakuni [Hajime] patent firm (JP)
Patent business corporation 3 Edakuni [Hajime] patent firm (JP)
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Claims: