CERIUM OXIDE-ZIRCONIUM OXIDE COMPOSITE OXIDE AND METHOD FOR PRODUCING THE SAME,申请号US201113577375-传众专利搜索

CERIUM OXIDE-ZIRCONIUM OXIDE COMPOSITE OXIDE AND METHOD FOR PRODUCING THE SAME

申请公布号：US2012309616(A1)

申请号：US201113577375

申请日期：2011.02.25

申请公布日期：2012.12.06

申请人：

YAGISHITA SADAHIRO;OMURA NORIYUKI;TATSUMI AKIKO;DAIICHI KIGENSO KAGAKU KOGYO CO., LTD.

发明人：YAGISHITA SADAHIRO;OMURA NORIYUKI;TATSUMI AKIKO

分类号：B01J23/10

主分类号：B01J23/10

摘要：The present invention provides a cerium oxide-zirconium oxide based composite oxide that has a large OSC at a low temperature and that has a suitable OSC, and a method for readily producing the composite oxide. Specifically, the present invention provides a cerium oxide-zirconium oxide based composite oxide comprising a mixture of (1) a cerium-zirconium composite oxide from a melting process and (2) cerium dioxide from a wet process, and a method for producing a cerium oxide-zirconium oxide based composite oxide, the method comprising dispersing a cerium-zirconium composite oxide from a melting process in a cerium-containing solution, neutralizing the resulting dispersion; and then performing a heat treatment.