Invention Grant
US08822740B2 Process for preparing R-1234yf by base mediated dehydrohalogenation
有权
通过碱介导的脱卤化氢制备R-1234yf的方法
- Patent Title: Process for preparing R-1234yf by base mediated dehydrohalogenation
- Patent Title (中): 通过碱介导的脱卤化氢制备R-1234yf的方法
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Application No.: US13917175Application Date: 2013-06-13
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Publication No.: US08822740B2Publication Date: 2014-09-02
- Inventor: Andrew Paul Sharratt , Robert Elliott Low , John Charles McCarthy
- Applicant: Andrew Paul Sharratt , Robert Elliott Low , John Charles McCarthy
- Applicant Address: MX Tlalnepantla
- Assignee: Mexichem Amanco Holding S.A. de C.V.
- Current Assignee: Mexichem Amanco Holding S.A. de C.V.
- Current Assignee Address: MX Tlalnepantla
- Agency: Ryan Kromholz & Manion, S.C.
- Priority: GB0625214.2 20061219
- Main IPC: C07C17/20
- IPC: C07C17/20
Abstract:
The invention relates to a process for preparing 2,3,3,3-tetrafluoropropene (CF3CF═CH2), performed using the steps of dehydrohalogenating 1,1,1,2,2-pentafluoropropane (CH3CF2CF3, HFC-245ca) 1,1,1,2-tetrafluoro-2-chloropropane, 1,1,1,2,3-pentafluoropropane (CH2FCHFCF3, HFC-245eb) and/or 1,1,1,2-tetrafluoro-3-chloropropane in the presence of a base, and converting a trifluorodichloropropane or a difluorotrichloropropane or a fluorotetrachloropropane to CH3CF2CF3, 1,1,1,2-tetrafluoro-2-chloropropane, CH2FCHFCF3, and/or 1,1,1,2-tetrafluoro-3-chloropropane.
Public/Granted literature
- US20130274528A1 Process for Preparing R-1234yf By Base Mediated Dehydrohalogenation Public/Granted day:2013-10-17
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