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:
Jun. 11, 2013
Filed:
Dec. 15, 2008
Takanori Aoki, Kawasaki, JP;
Norihide Arai, Oita, JP;
Takanori Aoki, Kawasaki, JP;
Norihide Arai, Oita, JP;
Showa Denko K.K., Tokyo, JP;
Abstract
To provide a method of producing acrylic acid which enables low energy-consumption production of acrylic acid from glycerin mixtures including glycerin and one or more compound selected from the group consisting of fatty acids, fatty acid salts, glycerides, fatty acid esters, alkali compounds and alkali compound salts. The method of producing acrylic acid according to the present invention includes the steps of obtaining an acrolein mixture by causing a dehydration reaction to a glycerin mixture; and obtaining an acrylic acid mixture by causing an oxidation reaction to the acrolein mixture; and recovering acrylic acid from the acrylic acid mixture.