EP 1159243 A1 20011205 - METHOD FOR CARRYING OUT THE HETEROGENEOUSLY CATALYZED GAS PHASE OXIDATION OF PROPANE INTO ACROLEIN AND/OR ACRYLIC ACID

Title (en)

METHOD FOR CARRYING OUT THE HETEROGENEOUSLY CATALYZED GAS PHASE OXIDATION OF PROPANE INTO ACROLEIN AND/OR ACRYLIC ACID

Title (de)

VERFAHREN DER HETEROGEN KATALYSIERTEN GASPHASENOXIDATION VON PROPAN ZU ACROLEIN UND/ODER ACRYLSÄURE

Title (fr)

PROCEDE D'OXYDATION EN PHASE GAZEUSE, CATALYSEE DE MANIERE HETEROGENE, DE PROPANE POUR FORMER DE L'ALDEHYDE ACRYLIQUE ET/OU DE L'ACIDE ACRYLIQUE

Publication

EP 1159243 A1 20011205 (DE)

Application

EP 00910721 A 20000228

Priority

DE 19910507 A 19990310
EP 0001632 W 20000228

Abstract (en)

[origin: DE19910507A1] The invention relates to a method for carrying out the heterogeneously catalyzed gas phase oxidation of propane into acrolein and/or acrylic acid in which the initial mixture of reaction gas is fed over a fixed-bed catalyst which is comprised of catalyst charges A, B arranged in two reaction zones A, B that are placed in a spatially successive manner, whereby the temperature of reaction zones A, B are kept at different temperatures.

IPC 1-7

C07C 45/33; C07C 51/215; C07C 47/22; C07C 57/04

IPC 8 full level

B01J 23/88 (2006.01); B01J 8/02 (2006.01); B01J 8/04 (2006.01); B01J 8/06 (2006.01); B01J 23/31 (2006.01); B01J 23/882 (2006.01); B01J 23/888 (2006.01); B01J 35/00 (2006.01); B01J 37/04 (2006.01); C07B 61/00 (2006.01); C07C 27/14 (2006.01); C07C 45/33 (2006.01); C07C 47/22 (2006.01); C07C 51/215 (2006.01); C07C 57/05 (2006.01)

CPC (source: EP)

B01J 23/002 (2013.01); B01J 23/31 (2013.01); B01J 23/882 (2013.01); B01J 23/8885 (2013.01); B01J 35/19 (2024.01); B01J 37/04 (2013.01); C07C 45/33 (2013.01); C07C 51/215 (2013.01); B01J 2523/00 (2013.01)

C-Set (source: EP)

C07C 45/33 + C07C 47/22
C07C 51/215 + C07C 57/04
B01J 2523/00 + B01J 2523/13 + B01J 2523/41 + B01J 2523/54 + B01J 2523/68 + B01J 2523/69 + B01J 2523/842 + B01J 2523/845

Designated contracting state (EPC)

BE DE ES FR IT

DOCDB simple family (publication)

DE 19910507 A1 20000914; BR 0008824 A 20020115; CN 1343189 A 20020403; EP 1159243 A1 20011205; JP 2002539099 A 20021119; WO 0053555 A1 20000914

DOCDB simple family (application)

DE 19910507 A 19990310; BR 0008824 A 20000228; CN 00804785 A 20000228; EP 0001632 W 20000228; EP 00910721 A 20000228; JP 2000603996 A 20000228