METHOD AND PLANT FOR PRODUCING TETRAFLUOROPROPENE

    公开(公告)号:US20200223774A1

    公开(公告)日:2020-07-16

    申请号:US16836977

    申请日:2020-04-01

    Applicant: Arkema France

    Abstract: A plant for the manufacture of tetrafluoropropene comprises three reactors for reaction in the gas phase comprising a catalyst bed. The first and second reactor are each configured in order to be fed in turn by a device for feeding with a reaction stream comprising a compound B and hydrofluoric acid; and a device for feeding with a regeneration stream configured in order to feed the reactor with a regeneration stream comprising an oxidizing agent. The third reactor is configured in order to be fed in turn by a device for feeding with a reaction stream comprising a compound A and hydrofluoric acid; said compound A being different from said compound B; and a device for feeding with a regeneration stream configured in order to feed the reactor with a regeneration stream comprising an oxidizing agent.

    METHOD FOR PRODUCING 1-CHLORO-2,2-DIFLUOROETHANE

    公开(公告)号:US20200002253A1

    公开(公告)日:2020-01-02

    申请号:US16333600

    申请日:2017-09-25

    Applicant: ARKEMA FRANCE

    Abstract: The invention relates to a method for producing 1-chloro-2,2-difluoroethane from 1,1,2-trichloroethane, comprising at least one step of separating 1-chloro-2,2-difluoroethane from the organic phase produced during the method; said step comprising a) purification of the organic phase obtained in step (iii) so as to form a first stream comprising 1-chloro-difluoroethane and hydrofluoric acid and a second stream comprising 1,1,2-trichloroethane; b) the elimination of the hydrofluoric acid from said first stream in order to form a third stream comprising 1-chloro-difluoroethane; and c) a purification of said third stream comprising 1-chloro-difluoroethane.

    METHOD FOR PURIFYING 1,1,1,2,2-PENTAFLUOROPROPANE

    公开(公告)号:US20200157026A1

    公开(公告)日:2020-05-21

    申请号:US16606777

    申请日:2018-04-20

    Applicant: Arkema France

    Abstract: The present invention relates to a process for purifying a stream including 1,1,1,2,2-pentafluoropropane, comprising the steps of i) providing a stream A comprising 1,1,1,2,2-pentafluoropropane and at least one of the compounds selected from the group consisting of 2-chloro-1,1,1,3,3-pentafluoropropane, 1,2-dichloro-3,3,3-trifluoropropene, 2-chloro-1,3,3,3-tetrafluoropropene; ii) purification, preferably by distillation, of the stream A provided in i) in order to form a first stream A1 comprising 1,1,1,2,2-pentafluoropropane, preferably recovered at the top of the distillation column, and a second stream A2 comprising said at least one of the compounds selected from the group consisting of 2-chloro-1,1,1,3,3-pentafluoropropane, 1,2-dichloro-3,3,3-trifluoropropene, 2-chloro-1,3,3,3-tetrafluoropropene, preferably recovered at the bottom of the distillation column.

    COMPOSITION COMPRISING 1-CHLORO-2,2-DIFLUOROETHANE

    公开(公告)号:US20190300473A1

    公开(公告)日:2019-10-03

    申请号:US16336305

    申请日:2017-09-25

    Applicant: Arkema France

    Abstract: Compositions including 1-chloro-2,2-difluoroethane, and the uses thereof. A composition including 1-chloro-2,2-difluoroethane and at least one additional compound selected from 1,1-difluoroethylene, 1,1,1-trifluoroethane, chlorotrifluoroethylene, 1-chloro-1-fluoroethylene, 1,1-difluoroethane, trans-1-chloro-2-fluoroethylene, 1-chloro-2,2,2-trifluoroethane, 1-chloro-1,2,2-trifluoroethane, cis-1-chloro-2-fluoroethylene, 2,2-dichloro-1,1,1-trifluoroethane, 1,1-dichloro-1-fluoroethane, 1,1-dichloroethylene, 1,2-dichloro-1-fluoroethylene, 1,1-dichloro-2-fluoroethylene, 1,2-dichloro-1,1-difluoroethane, 1,1-dichloro-2,2-difluoroethane, cis-1,2-dichloroethylene, 1,2,2-trichloro-1,1-difluoroethane, 1,1,1-trichloroethane, 1,1-dichloroethane, 1,1,2-trichloro-1-fluoroethane, trichloroethylene, 1,1,2-trichloro-2-fluoroethane, 1,1,2-trichloroethane, 1,1,2,2-tetrachloro-1-fluoroethane, tetrachloroethylene, 1,1,1,2-tetrachloroethane, 1,1,2,2-tetrachloroethane, 1,1,1,2,2-pentachloroethane, tetrachloromethane, 1,2,2-trichloro-1-fluoroethylene, isomers of chloropropene, 1,2-dichloro-1-fluoroethylene, 1-chloro-2-fluoroethane, 1-chloro-1-fluoroethane, 1,1-chloro-2,2,2-trifluoroethane, 1,1,1-trichloro-2,2-difluoroethane, 1-chloroethylene, 1-fluoroethylene, H2O and HCl; the composition including at least 30% by weight of 1-chloro-2,2-difluoroethane, based on the total weight of the composition.

    METHOD FOR PRODUCING FLUORINATED COMPOUNDS
    6.
    发明申请
    METHOD FOR PRODUCING FLUORINATED COMPOUNDS 有权
    生产氟化合物的方法

    公开(公告)号:US20160251282A1

    公开(公告)日:2016-09-01

    申请号:US15028798

    申请日:2014-10-13

    Applicant: ARKEMA FRANCE

    Abstract: The invention relates to a method for producing a fluorinated compound, comprising: the provision of a gaseous flow comprising hydrofluoric acid; the provision of at least one liquid flow of a chlorinated compound and the vapourisation thereof by mixing with said gaseous flow, the resulting mixture being a gaseous mixture; and the catalytic reaction of the chlorinated compound with hydrofluoric acid in a gaseous phase and the collection of a product flow. The invention also relates to a facility for carrying out said method.

    Abstract translation: 本发明涉及一种氟化化合物的制备方法,包括:提供包含氢氟酸的气流; 通过与所述气流混合,提供至少一种氯化化合物的液体流和其蒸发,所得混合物是气态混合物; 以及氯化化合物与氢氟酸在气相中的催化反应以及产物流的收集。 本发明还涉及一种用于执行所述方法的设备。

    METHOD FOR CONTROLLING THE TEMPERATURE OF A BATTERY IN A MOTOR VEHICLE

    公开(公告)号:US20240234872A9

    公开(公告)日:2024-07-11

    申请号:US17769390

    申请日:2020-09-29

    Applicant: Arkema France

    Abstract: The invention relates to a method for controlling the temperature of a battery in an electric or hybrid motor vehicle by means of a system comprising a vapor compression circuit in which flows a first heat transfer composition comprising 2,3,3,3-tetrafluoropropene, and a secondary circuit in which flows a second heat transfer composition comprising 1-chloro-3,3,3-trifluoropropene that has a ratio of the Z form to the E form of less than or equal to 9, the method involving: —heat exchange between the battery and the second heat transfer composition; —heat exchange between the second heat transfer composition and the first heat transfer composition. The invention also relates to a system for carrying out said method.

    METHOD FOR PRODUCING TETRAFLUOROPROPENE
    8.
    发明申请

    公开(公告)号:US20190210943A1

    公开(公告)日:2019-07-11

    申请号:US16099208

    申请日:2017-05-17

    Applicant: Arkema France

    Abstract: The present invention concerns a method for preparing tetrafluoropropene utilising three reactors and comprising the steps of (a) implementing, in the first and second reactors, at least one step of reacting, in the gas phase, a compound B in the presence of hydrofluoric acid and a catalyst, in alternation with a step of regenerating the catalyst by bringing it into contact with a regeneration flow comprising an oxidising agent, (b) implementing, in the third reactor, a preliminary step of producing the compound B, in alternation with a step of regenerating the preliminary catalyst with a regeneration flow comprising an oxidising agent. The step of regenerating the preliminary catalyst in the third reactor is implemented in the absence of a step of reacting the compound B in the presence of hydrofluoric acid in said first and second reactors. The present invention also concerns a facility configured to implement the present method.

    PROCESS FOR PRODUCING 1-CHLORO-2,2-DIFLUOROETHANE

    公开(公告)号:US20170267612A1

    公开(公告)日:2017-09-21

    申请号:US15101733

    申请日:2014-11-28

    Applicant: ARKEMA FRANCE

    Abstract: The present invention relates to the field of saturated fluorohydrocarbons. The subject matter thereof is more particularly the production of 1-chloro-2,2-difluoroethane from 1,1,2-trichloroethane and/or 1,2-dichloroethylene. A process for producing 1-chloro-2,2-difluoroethane from 1,1,2-trichloroethane and/or 1,2-dichloroethylene including (i) at least one step during which the 1,1,2-trichloroethane and/or the 1,2-dichloroethylene reacts or react with hydrofluoric acid in the gas phase, optionally in the presence of an oxidizing agent, in the presence or in the absence of a fluorination catalyst, to give a stream including 1-chloro-2,2-difluoroethane, hydrochloric acid, hydrofluoric acid and at least one C compound(s) chosen from 1-chloro-2-fluoroethylenes (cis and trans), 1,2-dichloro-2-fluoroethane and, optionally, unreacted 1,1,2-trichloroethane and/or 1,2-dichloroethylene.

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