Title:
COMPOSITE OXIDE CATALYST AND METHOD FOR PREPARATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2003/039744
Kind Code:
A1
Abstract:
A composite oxide catalyst for the oxidation of an olefin containing Mo and Bi as essential components, characterized in that it has a specific surface area of 5 to 25 m2&sol g and a pore volume of 0.2 to 0.7 cc&sol g, and has a pore diameter distribution wherein the volume of the pores having a pore diameter of 0.03 to 0.1 μm accounts for 30 % or more of the total pore volume, the volume of the pores having a pore diameter of 0.1 to 1 μm accounts for 20 % or more of the total pore volume, and the volume of the pores having a pore diameter of less than 0.03 μm is 10 % or less of the total pore volume&semi a composite oxide catalyst for use in the vapor phase catatlytic oxidation of acrolein or methacrolein or the like which comprises Mo, Bi and a halogen&semi either of the above two composite oxide catalysts which comprises Mo, Bi, Fe, Si and an element selected from alkali metals and thallium, and optionally Co, Ni, Mg, Ca, Zn, Ce, Sm, a halogen, B, P, As and W&semi a method for preparing any of the above composite oxide catalysts&semi and a method for using any of the above composite oxide catalysts.
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Inventors:
TESHIGAHARA ISAO (JP)
KANUKA NARIYASU (JP)
IWAKURA TOMOATSU (JP)
KANUKA NARIYASU (JP)
IWAKURA TOMOATSU (JP)
Application Number:
PCT/JP2002/011703
Publication Date:
May 15, 2003
Filing Date:
November 08, 2002
Export Citation:
Assignee:
MITSUBISHI CHEM CORP (JP)
TESHIGAHARA ISAO (JP)
KANUKA NARIYASU (JP)
IWAKURA TOMOATSU (JP)
TESHIGAHARA ISAO (JP)
KANUKA NARIYASU (JP)
IWAKURA TOMOATSU (JP)
International Classes:
B01J23/00; B01J23/31; B01J23/887; B01J37/03; B01J23/88; C07B61/00; C07C27/14; C07C45/34; C07C45/35; C07C45/37; C07C47/22; C07C51/25; C07C57/05; B01J21/08; B01J35/10; B01J37/00; (IPC1-7): B01J23/88; B01J27/132; C07C27/14; C07C45/35; C07C47/22; C07C51/25; C07C57/05
Foreign References:
| JPH03109345A | 1991-05-09 | |||
| JPH03109946A | 1991-05-09 | |||
| JPH02227140A | 1990-09-10 | |||
| JPS6028824A | 1985-02-14 | |||
| JPS62234548A | 1987-10-14 |
Other References:
See also references of EP 1449579A4
Attorney, Agent or Firm:
Kamada, Bunji (Nipponbashi 1-chome Chuo-k, Osaka-shi Osaka, JP)
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