Title:
CATALYST AND CATALYST GROUP
Document Type and Number:
WIPO Patent Application WO/2018/181226
Kind Code:
A1
Abstract:
The objective of the present invention is to provide a catalyst with which pressure losses and coking are suppressed and with which it is possible to produce a target substance with a high yield, when the catalyst is used to produce the target substance by causing a material to undergo a gas phase catalytic oxidation reaction. The present invention relates to a ring-shaped catalyst which is used when producing a target substance by causing a material to undergo a gas phase catalytic oxidation reaction and which has a straight body portion and a hollow body portion, wherein the length of the straight body portion is less than the length of the hollow body portion, and the catalyst has a concave curve from an end portion of the straight body portion to an end portion of the hollow body portion in at least one end portion of the catalyst.
Inventors:
TAZAWA KAZUHARU (JP)
TANIGUCHI TAKANORI (JP)
NAKAMURA TAKUYA (JP)
TANIGUCHI TAKANORI (JP)
NAKAMURA TAKUYA (JP)
Application Number:
PCT/JP2018/012233
Publication Date:
October 04, 2018
Filing Date:
March 26, 2018
Export Citation:
Assignee:
MITSUBISHI CHEM CORP (JP)
International Classes:
B01J35/02; B01J23/887; C07C45/35; C07C47/22; C07C51/215; C07C57/05; C07B61/00; C07C45/29; C07C51/23
Domestic Patent References:
| WO2009147965A1 | 2009-12-10 | |||
| WO2018021241A1 | 2018-02-01 | |||
| WO2005005037A1 | 2005-01-20 |
Foreign References:
| JPS55139834A | 1980-11-01 | |||
| JPH06145093A | 1994-05-24 | |||
| JPS61141933A | 1986-06-28 | |||
| JP2007505740A | 2007-03-15 | |||
| JP2001293376A | 2001-10-23 | |||
| JPH01228940A | 1989-09-12 | |||
| JPS5276553U | 1977-06-08 | |||
| JP2017080731A | 2017-05-18 | |||
| JPS61141933A | 1986-06-28 | |||
| JP2007505740A | 2007-03-15 | |||
| JPH05317713A | 1993-12-03 | |||
| JPS55139834A | 1980-11-01 | |||
| JP2011225476A | 2011-11-10 | |||
| JP2017061962A | 2017-03-30 | |||
| JP2017088648A | 2017-05-25 | |||
| JP2017097655A | 2017-06-01 | |||
| JP2017097656A | 2017-06-01 | |||
| JP2018012547A | 2018-01-25 | |||
| JP2018012548A | 2018-01-25 | |||
| JP2018012549A | 2018-01-25 | |||
| JP2018012550A | 2018-01-25 |
Other References:
See also references of EP 3603805A4
Attorney, Agent or Firm:
EIKOH PATENT FIRM, P.C. (JP)
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