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Title:
OXIDATION REACTOR, METHOD FOR PRODUCING (METH)ACRYLIC ACID OR THE LIKE, AND METHOD FOR ANALYZING EASILY POLYMERIZABLE COMPOUND
Document Type and Number:
WIPO Patent Application WO/2003/047746
Kind Code:
A1
Abstract:
An oxidation reactor having a manhole nozzle provided being projected from the body of the reactor, characterized in that the manhole nozzle has a partition plate separating the inside of the manhole nozzle from the inside of the reactor; the above oxidation reactor further having a means for supplying an inert gas to the inside of the manhole nozzle; a method for producing (meth)acrylic acid or (meth)acrolein through the catalytic gas phase oxidation of propane, propylene, or isobutylene in an oxidation reactor, characterized in that the above oxidation reactor is used; and a method for analyzing an easily polymerizable compound wherein a gas containing the easily polymerizable compound is introduced to an analyzing instrument through a sampling tube, characterized in that a double tube is used as the sampling tube and a heating medium is supplied to an outer tube thereof. The oxidation reactor allows the stable production of the above products, and the method for analysis allows the inhibition of condensation and polymerization of an easily polymerizable compound in a sampling tube, which leads to an on-line analysis being precise and stable for a long period of time.

Inventors:
YADA SHUHEI (JP)
OGAWA YASUSHI (JP)
SUZUKI YOSHIRO (JP)
HOSAKA HIROCHIKA (JP)
SAMURA YASUHIKO (JP)
Application Number:
PCT/JP2002/012654
Publication Date:
June 12, 2003
Filing Date:
December 03, 2002
Export Citation:
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Assignee:
MITSUBISHI CHEM CORP (JP)
YADA SHUHEI (JP)
OGAWA YASUSHI (JP)
SUZUKI YOSHIRO (JP)
HOSAKA HIROCHIKA (JP)
SAMURA YASUHIKO (JP)
International Classes:
B01J8/00; B01J8/02; B01J19/00; B01J19/26; C07C45/35; C07C51/215; C07C51/25; G01N1/20; G01N31/00; G01N1/10; G01N1/22; G01N33/44; (IPC1-7): B01J19/00; C07C45/35; C07C47/22; C07C51/235; C07C51/25; C07C57/05; C07C57/055; G01N1/00
Domestic Patent References:
WO1999058950A11999-11-18
Foreign References:
JPS5394940U1978-08-02
JPS5321140U1978-02-22
JPH09323950A1997-12-16
JPS5695330U1981-07-29
JPH069295U1994-02-04
Attorney, Agent or Firm:
Okada, Kazuhiko (10-1 Kudan-Kita 1-chom, Chiyoda-ku Tokyo, JP)
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