The invention concerns the selective oxidation of propane into acrylic acid using highly selective catalysts and relates more particularly to a process for preparing these improved catalysts and their use for the production of acrylic acid from propane. The improved catalysts having the formula: Mo1Va(Te and/or Sb)b(Nb and/or Ta)cSidOx wherein a is between 0.006 and 1, b is between 0.006 and 1, c is between 0.001 and 0.5, d is between 0 and 3.5, and x is dependant on the oxidation state of the other elements, are obtained by adding a doping agent constituted by at least one component selected from Nb and Ta to a mainly orthorhombic phase prepared by hydrothermal method of a Mo—V—(Te and/or Sb)—O mixed metal oxide, optionally containing Nb and/or Ta and/or Si.

Title
Process for Preparing Improved Catalysts for Selective Oxidation of Propane Into Acrylic Acid
Application Number
11/909091
Publication Number
20080194871
Application Date
March 24, 2006
Publication Date
August 14, 2008
Inventor
Yusuke Endo
Wataru Ueda
Jean Luc Dubois
Agent
Patent Department 26th Floor
PA, US
Arkema
PA, US
Assignee
Arkema France
IPC
C07C 51/16
C01B 33/20
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