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Title:
POROUS GROUP IV METAL OXIDE, PRODUCING METHOD THEREOF AND USE THEREOF
Document Type and Number:
Japanese Patent JP3755732
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To provide a porous group IV metal oxide which is excellent in heat stability, is large in specific surface area and is highly dispersed with catalytic metal, a producing method thereof and a use thereof, and to provide a porous group IV metal oxide which is useful as a catalyst or a catalyst carrier which has a controlled sharp pore distribution and has excellent reaction selectivity in addition to the excellent heat stability, high specific surface area and high dispersion of catalytic metal, a producing method thereof and a use thereof.
SOLUTION: This porous group IV metal oxide has a high specific surface area of ≥80 m2/g which is obtained by adding one or more kinds of anions or/and one or more kinds of cations as a particle growth inhibitor to a hydrosol or a hydrogel, or dried materials thereof of group IVmetal oxide hydrate which is shown by a general expression MO2.nH2O where M denotes a group IV metal and n is 0.02 or more, thereafter drying and calcining the hydrosol or hydrogel, or dried material thereof. The produsing method thereof and the use thereof.


Inventors:
Hidehiko Kudo
Shinichi Inoue
Toru Takatsuka
Akihiro Muto
Takeo Ono
Application Number:
JP2000213535A
Publication Date:
March 15, 2006
Filing Date:
July 13, 2000
Export Citation:
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Assignee:
Chiyoda Kakoh Construction Co., Ltd.
International Classes:
B01J23/28; B01J21/06; B01J23/30; B01J23/745; B01J23/755; B01J27/053; B01J27/18; B01J35/10; B01J37/04; B01J37/08; C01G23/04; C01G25/02; (IPC1-7): B01J23/28; B01J21/06; B01J23/30; B01J23/745; B01J23/755; B01J27/053; B01J27/18; B01J35/10; B01J37/04; B01J37/08
Domestic Patent References:
JP60050721B2
JP3202151A
JP56040432A
JP57044605B2
Foreign References:
US5021392
Attorney, Agent or Firm:
Katsuo Naruse
Tomohiro Nakamura
Masahiro Koizumi