Title:
CATALYST FOR METHACRYLIC ACID PRODUCTION AND PROCESS FOR PRODUCING METHACRYLIC ACID
Document Type and Number:
WIPO Patent Application WO/2000/072964
Kind Code:
A1
Abstract:
A catalyst with which methacrylic acid can be produced in high yield by catalytically oxidizing methacrolein with molecular oxygen in a vapor phase; a process for producing the catalyst; a process for producing methacrylic acid with the catalyst; and a method of using the catalyst in methacrylic acid production. The catalyst, which is for use in methacrylic acid production through the vapor-phase catalytic oxydation of methacrolein with molecular oxygen, has a composition represented by P¿a?Mo¿b?V¿c?Cu¿d?X¿e?Y¿f?Z¿g?O¿h? and has an ammonia adsorption at 0°C of at least 1,000 $g(m)mol per g of the catalyst.
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Inventors:
NAITO HIROYUKI (JP)
OH-KITA MOTOMU (JP)
OH-KITA MOTOMU (JP)
Application Number:
PCT/JP2000/003311
Publication Date:
December 07, 2000
Filing Date:
May 24, 2000
Export Citation:
Assignee:
MITSUBISHI RAYON CO (JP)
NAITO HIROYUKI (JP)
OH KITA MOTOMU (JP)
NAITO HIROYUKI (JP)
OH KITA MOTOMU (JP)
International Classes:
B01J27/199; C07C51/235; B01J27/19; (IPC1-7): B01J27/199; C07B61/00; C07C51/235; C07C57/055
Foreign References:
| JPS6176436A | 1986-04-18 | |||
| EP0253896A1 | 1988-01-27 | |||
| JPS62175435A | 1987-08-01 | |||
| EP0265733A1 | 1988-05-04 | |||
| EP0424900A2 | 1991-05-02 | |||
| JPH05279291A | 1993-10-26 |
Attorney, Agent or Firm:
Asamura, Kiyoshi (Ohtemachi 2-chome Chiyoda-ku Tokyo, JP)
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