Title:
複合金属酸化物の製造方法
Document Type and Number:
Japanese Patent JP4710744
Kind Code:
B2
Abstract:
A process for producing a composite metal oxide of an acidic metal oxide and a basic metal oxide, wherein the process comprises (a) providing an aqueous solution containing a colloidal particle of the acidic metal oxide and a salt of the basic metal, (b) adjusting the pH of the aqueous solution to a pH at which a part of the basic metal dissolves in the aqueous solution, the remaining of the basic metal precipitates as a hydroxide and has a positive zeta potential, and the colloidal particle of the acidic metal oxide is not dissolved and has a negative surface potential, and then maintaining this pH over a predetermined time to obtain a precursor of the composite metal oxide, and (c) drying and firing the precursor of the composite metal oxide obtained.
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Inventors:
Shinichi Takeshima
Akio Koyama
Akio Koyama
Application Number:
JP2006195668A
Publication Date:
June 29, 2011
Filing Date:
July 18, 2006
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
C01G1/00; B01D53/86; B01D53/94; B01J23/63; B01J32/00; B01J37/03; B01J37/04; C01B33/00; C01G23/00
Domestic Patent References:
| JP2005518929A | ||||
| JP2005313024A | ||||
| JP1201023A | ||||
| JP5049864A | ||||
| JP6198174A | ||||
| JP8266865A | ||||
| JP2001314763A | ||||
| JP2002282692A | ||||
| JP2005254047A |
Attorney, Agent or Firm:
Atsushi Aoki
Takashi Ishida
Tetsuji Koga
Nobuo Sekine
Yasuo Dogaki
Takashi Ishida
Tetsuji Koga
Nobuo Sekine
Yasuo Dogaki