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:
Nov. 03, 2015
Filed:
Jun. 27, 2013
Applicant:
Central Glass Company, Limited, Ube-shi, Yamaguchi, JP;
Inventors:
Assignee:
Central Glass Company, Limited, Ube-shi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 17/389 (2006.01); C07C 17/38 (2006.01); C07C 21/18 (2006.01); C07C 19/08 (2006.01); C07C 19/10 (2006.01); C07C 21/22 (2006.01);
U.S. Cl.
CPC ...
C07C 17/389 (2013.01); C07C 21/18 (2013.01); C07B 2200/09 (2013.01); C07C 17/38 (2013.01); C07C 19/08 (2013.01); C07C 19/10 (2013.01); C07C 21/22 (2013.01);
Abstract
Disclosed is a method for purifying a trans-1,3,3,3-tetrafluoropropene, in which a composition containing trans-1,3,3,3-tetrafluoropropene and at least one impurity selected from the group consisting of CHClF, CFCHCHClF, CFCHCHF, CHFCH═CF, CFCH═CHCl, CFCH═CH, CFC≡CH, and cis-1,3,3,3-tetrafluoropropene is brought into contact with a solid adsorbent to reduce an impurity content thereof. By this method, it is possible to remove the impurity in trans-1,3,3,3-tetrafluoropropene by a simple operation.