Invention Grant
- Patent Title: Process for the preparation of 2,3,3,3-tetrafluoropropene
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Application No.: US14876090Application Date: 2015-10-06
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Publication No.: US09957210B2Publication Date: 2018-05-01
- Inventor: John W. Smith , Claire McGuinness , Andrew P. Sharratt , Andrew M. Taylor
- Applicant: MEXICHEM AMANCO HOLDING S.A. DE C.V.
- Applicant Address: MX Tlalnepantla
- Assignee: MEXICHEM AMANCO HOLDINGS S.A. DE C.V.
- Current Assignee: MEXICHEM AMANCO HOLDINGS S.A. DE C.V.
- Current Assignee Address: MX Tlalnepantla
- Agency: Ryan Kromholz & Manion, S.C.
- Priority: GB0808836.1 20080515
- Main IPC: C07C17/25
- IPC: C07C17/25 ; C07C17/354 ; C07C21/18
Abstract:
The invention provides a process for the preparation of 1234yf comprising (a) contacting 1,1,2,3,3,3-hexafluoropropene (1216) with hydrogen in the presence of a hydrogenation catalyst to produce 1,1,2,3,3,3-hexafluoropropane (236ea); (b) dehydrofluorinating 236ea to produce 1,2,3,3,3-pentafluoropropene (1225ye); (c) contacting 1225ye with hydrogen in the presence of a hydrogenation catalyst to produce 1,2,3,3,3-pentafluoropropane (245eb); and (d) dehydrofluorinating 245eb to produce 1234yf.
Public/Granted literature
- US20160023969A1 Process for the Preparation of 2,3,3,3-Tetrafluoropropene Public/Granted day:2016-01-28
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