Invention Grant
- Patent Title: Method for purifying trans-1,3,3,3-tetrafluoropropene
- Patent Title (中): 反式-1,3,3,3-四氟丙烯的纯化方法
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Application No.: US13929261Application Date: 2013-06-27
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Publication No.: US09174897B2Publication Date: 2015-11-03
- Inventor: Hideaki Imura , Naoto Takada , Masamune Okamoto
- Applicant: Central Glass Company, Limited
- Applicant Address: JP Ube-shi
- Assignee: Central Glass Company, Limited
- Current Assignee: Central Glass Company, Limited
- Current Assignee Address: JP Ube-shi
- Agency: Crowell & Morning LLP
- Priority: JP2012-145381 20120628; JP2013-133058 20130625
- Main IPC: C07C17/389
- IPC: C07C17/389 ; C07C17/38 ; C07C21/18 ; C07C19/08 ; C07C19/10 ; C07C21/22
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 C2H3ClF2, CF3CH2CHClF, CF3CH2CHF2, CHF2CH═CF2, CF3CH═CHCl, CF3CH═CH2, CF3C≡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.
Public/Granted literature
- US20140051896A1 Method for Purifying Trans-1,3,3,3-Tetrafluoropropene Public/Granted day:2014-02-20
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