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:
Dec. 10, 2013
Filed:
Dec. 21, 2010
Sebastien Paul, Thun Saint-Amand, FR;
Benjamin Katryniok, Loos-en-Gohelle, FR;
Franck Dumeignil, Fretin, FR;
Mickael Capron, Hasnon, FR;
Sebastien Paul, Thun Saint-Amand, FR;
Benjamin Katryniok, Loos-en-Gohelle, FR;
Franck Dumeignil, Fretin, FR;
Mickael Capron, Hasnon, FR;
Abstract
The invention relates to a method for preparing acrolein from glycerol or glycerin, according to which dehydration of glycerol or glycerin is carried out in the presence of a catalyst which consists in at least one silica modified with zirconium dioxide, titanium dioxide or tungsten trioxide or any combination of these oxides, and a heteropolyacid. This method may be used for making 3-(methylthio)propionic aldehyde (MMP), 2-hydroxy-4-methylthiobutyronitrile (HMBTN), methionine or its analogs, from acrolein.