公开(公告)号：US20250066277A1

公开(公告)日：2025-02-27

申请号：US18721688

申请日：2022-12-13

Applicant: Arkema France

Inventor： Cédric LAVY ,  Jérémy RETALI ,  Kevin HISLER

IPC: C07C17/38

Abstract: The present invention relates to a process for the purification of a fluorocarbon from a mixture comprising said fluorocarbon and hydrogen, said process comprising a stage of bringing said mixture into contact with a membrane M1 to form a stream F1 comprising the fluorocarbon and a stream F2 comprising the hydrogen. The present invention also relates to a process for the production of trifluoroethylene. The present invention also relates to a process for the separation of a hydrofluoroolefin or of a hydrofluoroalkane from nitrogen by membrane separation. The present invention also relates to a process for the separation of trifluoroethylene from chlorotrifluoroethylene or from a hydrofluorocarbon.

公开(公告)号：US20240246891A1

公开(公告)日：2024-07-25

申请号：US18564332

申请日：2022-06-03

Applicant: ARKEMA FRANCE

Inventor： Alexandre CAMBRODON ,  Cédric LAVY ,  Thierry LANNUZEL ,  Philippe LEDUC ,  Kevin HISLER

IPC: C07C17/25 ,  B01D3/36 ,  B01J21/04 ,  B01J23/44 ,  C07C17/386

CPC classification number: C07C17/25 ,  B01D3/36 ,  B01J21/04 ,  B01J23/44 ,  C07C17/386

Abstract: The present invention relates to a process for producing trifluoroethylene in a reactor provided with a fixed catalytic bed comprising a catalyst, said process comprising the steps of: a) reacting chlorotrifluoroethylene with hydrogen in the presence of the catalyst and in the gas phase to produce a stream A comprising trifluoroethylene; b) treating said stream A under conditions sufficient to produce a stream D1 comprising 1,1,2-trifluoroethane in a content of less than 15% by weight on the basis of the total weight of said stream D1, c) recycling stream D1 to step a).

公开(公告)号：US20210261485A1

公开(公告)日：2021-08-26

申请号：US17251328

申请日：2019-06-21

Applicant: Arkema France

Inventor： Kevin HISLER ,  Anne PIGAMO ,  Laurent WENDLINGER ,  Emmanuel BOUSSARIE

IPC: C07C17/20

Abstract: The present invention relates to a process for producing 1-chloro-3,3,3-trifluoropropene (HCFO-1233zd), comprising: i) providing a stream A1 comprising HF, a stream A2 comprising 1,1,3,3-tetrachloropropene and/or 1,3,3,3-tetrachloropropene, and a reactor containing a liquid phase, ii) in said reactor, contacting, in said liquid phase, said stream Al comprising HF with said stream A2 comprising 1,1,3,3-tetrachloropropene and/or 1,3,3,3-tetrachloropropene under conditions which are sufficient to produce a stream C comprising 1-chloro-3,3,3-trifluoropropene, HF and HCl, iii) recovering said stream C, characterized in that said reactor is provided with means for stirring said liquid phase so as to keep the temperature of said liquid phase substantially constant during step ii).