Title:
METHOD FOR CATALYTIC GAS-PHASE OXIDATION OF PROPENE TO ACRYLIC ACID
Document Type and Number:
Japanese Patent JP2011074085
Kind Code:
A
Abstract:
To provide a method for catalytic gas-phase oxidation of propene to acrylic acid.
The reaction gas starting mixture is oxidized, with an increased propene loading, in a first reaction stage, over a first fixed-bed catalyst and then 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, the catalyst moldings in both reaction stages having an annular geometry.
Inventors:
UNVERRICHT SIGNE
ARNOLD HEIKO
TENTEN ANDREAS
HAMMON ULRICH
NEUMANN HANS-PETER
HARTH KLAUS
ARNOLD HEIKO
TENTEN ANDREAS
HAMMON ULRICH
NEUMANN HANS-PETER
HARTH KLAUS
Application Number:
JP2011000055A
Publication Date:
April 14, 2011
Filing Date:
January 04, 2011
Export Citation:
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:
Takuya Kuno
Toshio Yano
Takahashi
Kimihiro Hoshi
Hiroyasu Ninomiya
Ryoichi Shino
Einzel Felix-Reinhard
Toshio Yano
Takahashi
Kimihiro Hoshi
Hiroyasu Ninomiya
Ryoichi Shino
Einzel Felix-Reinhard