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. 16, 2016
Filed:
Jul. 16, 2014
Applicant:
Zeon Corporation, Tokyo, JP;
Inventor:
Tatsuya Sugimoto, Tokyo, JP;
Assignee:
ZEON CORPORATION, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 17/395 (2006.01); C07C 17/383 (2006.01); C07C 17/02 (2006.01); C07C 17/013 (2006.01);
U.S. Cl.
CPC ...
C07C 17/395 (2013.01); C07C 17/02 (2013.01); C07C 17/383 (2013.01); C07C 17/013 (2013.01);
Abstract
The present invention is a method for 2-fluorobutane to obtain highly purified 2-fluorobutane through a process comprising a step for: bringing crude 2-fluorobutane that includes 5 to 50 wt % of butene into contact with a brominating agent that can form a bromonium ion in an aprotic polar solvent in the presence of water or an alcohol having up to 4 carbon atoms; converting the butene into compounds having a boiling point higher than that of 2-fluorobutane, then recovering 2-fluorbutane from the reaction solution; and purifying the recovered 2-fluorabutane by distillation.