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. 26, 2013
Filed:
Jul. 24, 2008
Applicants:
Akiyoshi Nakajima, Kobe, JP;
Naohiro Fukumoto, Aioi, JP;
Inventors:
Akiyoshi Nakajima, Kobe, JP;
Naohiro Fukumoto, Aioi, JP;
Assignee:
Nippon Shokubai Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 51/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process which enables production of acrylic acid on an industrial scale at high productivity with stability, comprising production of acrylic acid by oxidation of propane with molecular oxygen, is provided. The process is characterized in characterized by re-use of the gas containing unreacted propane, as obtained after recovering acrylic acid from the gas produced of the reaction, as a recycling gas after removing at least a part of carbon dioxide from the same gas.