| 发明名称 |
Process for Preparing C3-6(Hydro)Fluoroalkenes by Dehydrohalogenating C3-6 Halo(Hydro) Fluoroalkanes in the Presence of a Zinc Chromia Catalyst |
| 摘要 |
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. |
| 申请公布号 |
US2017113985(A1) |
申请公布日期 |
2017.04.27 |
| 申请号 |
US201715397828 |
申请日期 |
2017.01.04 |
| 申请人 |
MEXICHEM AMANCO HOLDING S.A. DE C.V. |
发明人 |
SHARRATT ANDREW P;SEDDON LESLIE R |
| 分类号 |
C07C17/25;B01J23/06;B01J23/26;C07C17/21 |
主分类号 |
C07C17/25 |
| 代理机构 |
|
代理人 |
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| 主权项 |
1. A process for preparing 2,3,3,3-tetrafluoropropene (CF3CF═CH2) comprising:
(i) fluorinating 3,3,3-trifluoro-2-chloropropene (CF3CCl═CH2) with HF in the vapour phase in the presence of a chromia-containing catalyst to produce an intermediate composition comprising 1,1,1,2,2-pentafluoropropane (CF3CF2CH3); and (ii) dehydrofluorinating the CF3CF2CH3 in the intermediate composition to produce CF3CF═CH2. |
| 地址 |
TLALNEPANTLA MX |
