METHOD FOR CATALYTIC GAS-PHASE OXIDATION OF PROPENE TO ACRYLIC ACID

Title:

METHOD FOR CATALYTIC GAS-PHASE OXIDATION OF PROPENE TO ACRYLIC ACID

Document Type and Number:

Japanese Patent JP2014185164

Kind Code:

A

Abstract:

PROBLEM TO BE SOLVED: To provide a method for catalytic gas-phase oxidation of propene to acrylic acid.SOLUTION: A reaction gas starting mixture is oxidized, with an increased propene loading, in a first reaction stage, over a first fixed-bed catalyst, and subsequently the acrolein-containing product gas mixture of the first reaction stage is oxidized, in a second reaction stage, with an increased acrolein loading, over a second fixed-bed catalyst, thereby the catalyst moldings in both reaction stages having an annular geometry.

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Inventors:

UNVERRICHT SIGNE
ARNOLD HEIKO
TENTEN ANDREAS
HAMMON ULRICH
NEUMANN HANS-PETER
HARTH KLAUS

Application Number:

JP2014119684A

Publication Date:

October 02, 2014

Filing Date:

June 10, 2014

Export Citation:

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Assignee:

BASF SE

International Classes:

B01J23/88; C07C51/25; B01J23/887; C07B61/00; C07C27/14; C07C45/35; C07C47/22; C07C51/215; C07C57/04; C07C57/05; B01J23/00; B01J23/31; B01J35/00

Domestic Patent References:

JPH03294239A	1991-12-25
JPH08252464A	1996-10-01
JPH03218334A	1991-09-25

Foreign References:

US4366093A	1982-12-28
DE4431957A1	1995-03-16

Attorney, Agent or Firm:

アインゼル Felix-Reinhardt
Takuya Kuno
篠 Ryoichi

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