The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 19, 2008
Filed:
Sep. 09, 2003
Jean-luc Dubois, Millery, FR;
Fabienne Desdevises, Millery, FR;
Stéphanie Serreau, Oullins, FR;
Damien Vitry, Richebourg, FR;
Wataru Ueda, Tokyo, JP;
Jean-Luc Dubois, Millery, FR;
Fabienne Desdevises, Millery, FR;
Stéphanie Serreau, Oullins, FR;
Damien Vitry, Richebourg, FR;
Wataru Ueda, Tokyo, JP;
Arkema, Puteaux, FR;
Abstract
The invention concerns a method for producing acrylic acid from propane, which consists in passing a gas mixture including propane, water, vapor, and optionally an inert gas and/or molecular oxygen, on a catalyst of formula (I): MoVSbNbSiO, 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.