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:
Mar. 13, 2018
Filed:
Jul. 27, 2012
Jean-luc Dubois, Millery, FR;
Kimito Okumura, Yamaguchi, JP;
Yasushi Kobayashi, Yamaguchi, JP;
Ryota Hiraoka, Yamaguchi, JP;
Jean-Luc Dubois, Millery, FR;
Kimito Okumura, Yamaguchi, JP;
Yasushi Kobayashi, Yamaguchi, JP;
Ryota Hiraoka, Yamaguchi, JP;
Arkema France, Colombes, FR;
Abstract
The present invention relates to the production of acrolein, acrylic acid or methacrylic acid by dehydration reaction of renewable raw material such as glycerin or hydroxycarboxylic acids, in the presence of a novel catalyst system supported on a carrier having a bimodal structure and a high pore volume and distribution. The dehydration reactions can be carried out for longer operation duration, so that acrolein, acrylic acid or methacrylic acid can be produced at higher productivity and for longer running time.