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:
Aug. 06, 2019
Filed:
Dec. 08, 2015
Ecole Centrale DE Lille, Villeneuve D'Ascq, FR;
Universite Des Sciences ET Technologies DE Lille—lille 1, Villeneuve D'Ascq, FR;
Centre National DE LA Recherche Scientifique, Paris, FR;
Sébastien Paul, Thun Saint Amand, FR;
Benjamin Katryniok, Meurchin, FR;
Franck Dumeignil, Villeneuve D'Ascq, FR;
Thomas Bonnotte, Paris, FR;
ECOLE CENTRALE DE LILLE, Villeneuve d'Ascq, FR;
UNIVERSITE DE LILLE, Villeneuve d'Ascq, FR;
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, Paris, FR;
Abstract
The present invention relates to the use of haloapatites as catalysts of the dehydration reaction of α-hydroxylated carboxylic acids or acid esters, in particular of lactic acid or of methyl lactate, and also to a process for producing unsaturated carboxylic acids or acid esters, in particular acrylic acid or methyl acrylate, in the gas phase in a stainless steel reactor, in the presence of such a catalyst.