Global Patent Index - EP 1539669 A1

EP 1539669 A1 20050615 - METHOD FOR PRODUCING ACRYLIC ACID FROM PROPANE

Title (en)

METHOD FOR PRODUCING ACRYLIC ACID FROM PROPANE

Title (de)

VERFAHREN ZUR HERSTELLUNG VON ACRYLSÄURE AUS PROPAN

Title (fr)

PROCEDE DE FABRICATION D ACIDE ACRYLIQUE A PARTIR DE PROPANE

Publication

EP 1539669 A1 20050615 (FR)

Application

EP 03769594 A 20030909

Priority

  • FR 0302673 W 20030909
  • FR 0211197 A 20020910
  • FR 0306413 A 20030527

Abstract (en)

[origin: WO2004024665A1] The invention concerns a method for producing acrylic acid from propane, which consists in passing a gas mixture including propane, water vapour, and optionally an inert gas and/or molecular oxygen, on a catalyst of formula (I): Mo1VaSbbNbcSidOx, wherein: a ranges between 0.006 and 1, inclusively; b ranges between 0.006 and 1, inclusively; c ranges between 0.006 and 1, inclusively; d ranges between 0 and 3.5, inclusively; and x is the amount of oxygen bound to the other elements and depends on their state of oxidation, for oxidizing propane into acrylic acid, and which is carried out in the presence of molecular oxygen, the propane/molecular oxygen mol ratio in the initial gas mixture is not less than 0.5.

IPC 1-7

C07C 57/05; C07C 51/215; C07C 57/04

IPC 8 full level

B01J 23/28 (2006.01); B01J 38/12 (2006.01); C07B 61/00 (2006.01); C07C 51/215 (2006.01); C07C 57/04 (2006.01); C07C 57/05 (2006.01)

CPC (source: EP KR US)

B01J 23/002 (2013.01 - EP KR US); B01J 23/28 (2013.01 - EP KR US); B01J 35/647 (2024.01 - KR); B01J 37/0045 (2013.01 - EP KR US); B01J 37/036 (2013.01 - EP KR US); B01J 37/08 (2013.01 - EP KR US); C07C 51/215 (2013.01 - EP KR US); C07C 51/50 (2013.01 - KR); C07C 57/04 (2013.01 - KR); B01J 35/647 (2024.01 - EP US); B01J 2523/00 (2013.01 - EP KR US)

C-Set (source: EP US)

  1. C07C 51/215 + C07C 57/04
  2. B01J 2523/00 + B01J 2523/53 + B01J 2523/55 + B01J 2523/56 + B01J 2523/68
  3. B01J 2523/00 + B01J 2523/41 + B01J 2523/53 + B01J 2523/55 + B01J 2523/56 + B01J 2523/68

Citation (examination)

  • "ASTM-D3907-87 Standard Method for Testing Fluid Cracking Catalysts by Microactivity Test", ANNUAL BOOK OF ASTM STANDARDS, 1987, pages 91 - 95
  • CONTRACTOR ET AL.: "Butane oxidation in a transport bed reactor - redox characteristics of the vanadium phosphorus oxide catalyst", NEW DEVELOPMENTS IN SELECTIVE OXIDATION, 1990, pages 553 - 562
  • See also references of WO 2004024665A1

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

DOCDB simple family (publication)

WO 2004024665 A1 20040325; AU 2003278285 A1 20040430; EP 1539669 A1 20050615; JP 2005538172 A 20051215; KR 20050053643 A 20050608; US 2006183941 A1 20060817; US 7332625 B2 20080219

DOCDB simple family (application)

FR 0302673 W 20030909; AU 2003278285 A 20030909; EP 03769594 A 20030909; JP 2004535586 A 20030909; KR 20057004107 A 20050310; US 52687905 A 20051028