Invention Application
- Patent Title: Process for Preparing C3-6(Hydro)Fluoroalkenes by Dehydrohalogenating C3-6 Halo(Hydro) Fluoroalkanes in the Presence of a Zinc Chromia Catalyst
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Application No.: US15397828Application Date: 2017-01-04
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Publication No.: US20170113985A1Publication Date: 2017-04-27
- Inventor: ANDREW P SHARRATT , LESLIE R SEDDON
- Applicant: MEXICHEM AMANCO HOLDING S.A. DE C.V.
- 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
- Priority: GB0619505.1 20061003; GB0706980.0 20070411
- Main IPC: C07C17/25
- IPC: C07C17/25 ; B01J23/06 ; B01J23/26 ; C07C17/21
Abstract:
A process for preparing 2,3,3,3-tetrafluoropropene (CF3CF═CH2). 3,3,3-trifluoro-2-chloropropene (CF3CCl═CH2) is fluorinated with HF in the vapour phase in the presence of a chromia-containing catalyst to produce an intermediate composition 1,1,1,2,2-pentafluoropropane (CF3CF2CH3), which is dehydrofluorinated to produce CF3CF═CH2.
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