公开(公告)号：US20200148612A1

公开(公告)日：2020-05-14

申请号：US16742518

申请日：2020-01-14

Applicant: Arkema France

Inventor： David Andre ,  Dominique Deur-Bert ,  Dominique Garrait ,  Anne Pigamo ,  Laurent Wendlinger

IPC: C07C17/20 ,  B01J37/24 ,  B01J38/04 ,  B01J38/42 ,  B01J37/26 ,  B01J23/26 ,  C07C17/21 ,  B01J27/132 ,  B01J37/16 ,  B01J37/12 ,  C07C17/087 ,  B01J27/32 ,  B01J38/12 ,  B01J38/10 ,  B01J37/18 ,  B01J37/14 ,  B01J23/92 ,  B01J38/46

Abstract: A process for the fluorination of a chlorinated C3 alkane or alkene compound having at least one chlorine atom into a fluorinated C3 alkane or alkene compound having at least one fluorine atom includes the following steps: a) contacting, in a reactor, the chlorinated compound with hydrogen fluoride in gas phase in the presence of a fluorination catalyst to produce a fluorinated compound, and b) regenerating the fluorination catalyst used in step a). The step (b) of regenerating the fluorination catalyst comprises (c) the treatment of said fluorination catalyst with an oxidizing agent-containing gas flow to form an oxidized fluorination catalyst, and (d) the treatment of the oxidized fluorination catalyst obtained in step (c) with a gaseous mixture comprising a reducing agent and an inert gas. The catalyst regenerated in step b) is reused in step a) and the reducing agent is selected from C1-C10 hydrohalocarbons.

公开(公告)号：US10227277B2

公开(公告)日：2019-03-12

申请号：US15551789

申请日：2016-02-15

Applicant: ARKEMA FRANCE

Inventor： Dominique Garrait ,  David Andre ,  Abdelatif Baba-Ahmed ,  Charlotte Herdt

IPC: C07C17/383 ,  C07C17/386 ,  C07C19/12 ,  C07C21/073

Abstract: The invention relates to the separation of a mixture comprising 2-chloro-1,1-difluoroethane (R142) and trans-dichloroethylene (TDCE) by extractive distillation and more particularly to a separation process wherein the TDCE is removed selectively by extractive distillation, thus leading to purified 2-chloro-1,1-difluoroethane.

公开(公告)号：US09975825B1

公开(公告)日：2018-05-22

申请号：US15566074

申请日：2016-04-11

Applicant: ARKEMA FRANCE

Inventor： David Andre ,  Abdelatif Baba-Ahmed

IPC: C07C17/386 ,  C07C17/00

CPC classification number: C07C17/386 ,  C07C19/08

Abstract: The invention relates to a process for the purification of pentafluoroethane (R125) containing chloropentafluoroethane (R115). The mixture to be purified is subjected to an extractive distillation, the extractant being selected from dimethylformamide (DMF), dioxane, dimethylsulphoxide (DMSO) and diethylsulphoxide (DESO).

公开(公告)号：US10577294B2

公开(公告)日：2020-03-03

申请号：US16060037

申请日：2016-12-07

Applicant: Arkema France

Inventor： David Andre ,  Dominique Deur-Bert ,  Dominique Garrait ,  Anne Pigamo ,  Laurent Wendlinger

IPC: C07C17/20 ,  B01J38/46 ,  B01J23/92 ,  B01J37/14 ,  B01J37/18 ,  B01J38/10 ,  B01J38/12 ,  B01J27/32 ,  B01J37/12 ,  B01J37/16 ,  B01J27/132 ,  C07C17/21 ,  B01J23/26 ,  B01J37/26 ,  B01J38/42 ,  B01J38/04 ,  B01J37/24 ,  C07C17/087 ,  C07C19/08

Abstract: The present invention relates to a method for fluorinating a chlorinated compound including the steps of (a) placing said chlorinated compound in contact with gaseous hydrogen fluoride within a reactor and in the presence of a fluorination catalyst to produce a fluorinated compound, and (b) regenerating the fluorination catalyst used in step a), the step of regenerating the fluorination catalyst including (c) treating said fluorination catalyst with an oxidizing agent to form an oxidized fluorination catalyst, and (d) treating the oxidized fluorination catalyst obtained in step (c) with a gas mixture including a reducing agent.

公开(公告)号：US10988423B2

公开(公告)日：2021-04-27

申请号：US16742518

申请日：2020-01-14

Applicant: Arkema France

Inventor： David Andre ,  Dominique Deur-Bert ,  Dominique Garrait ,  Anne Pigamo ,  Laurent Wendlinger

IPC: C07C17/20 ,  B01J38/46 ,  B01J23/92 ,  B01J37/14 ,  B01J37/18 ,  B01J38/10 ,  B01J38/12 ,  B01J27/32 ,  B01J37/12 ,  B01J37/16 ,  B01J27/132 ,  C07C17/21 ,  B01J23/26 ,  B01J37/26 ,  B01J38/42 ,  B01J38/04 ,  B01J37/24 ,  C07C17/087 ,  C07C19/08

Abstract: A process for the fluorination of a chlorinated C3 alkane or alkene compound having at least one chlorine atom into a fluorinated C3 alkane or alkene compound having at least one fluorine atom includes the following steps: a) contacting, in a reactor, the chlorinated compound with hydrogen fluoride in gas phase in the presence of a fluorination catalyst to produce a fluorinated compound, and b) regenerating the fluorination catalyst used in step a). The step (b) of regenerating the fluorination catalyst comprises (c) the treatment of said fluorination catalyst with an oxidizing agent-containing gas flow to form an oxidized fluorination catalyst, and (d) the treatment of the oxidized fluorination catalyst obtained in step (c) with a gaseous mixture comprising a reducing agent and an inert gas. The catalyst regenerated in step b) is reused in step a) and the reducing agent is selected from C1-C10 hydrohalocarbons.

公开(公告)号：US20180370878A1

公开(公告)日：2018-12-27

申请号：US16060037

申请日：2016-12-07

Applicant: Arkema France

Inventor： David Andre ,  Dominique Deur-Bert ,  Dominique Garrait ,  Anne Pigamo ,  Laurent Wendlinger

IPC: C07C17/20 ,  C07C17/087 ,  B01J23/92 ,  B01J27/32 ,  B01J38/10 ,  B01J38/12 ,  B01J38/46 ,  B01J37/14 ,  B01J37/18

CPC classification number: C07C17/206 ,  B01J23/26 ,  B01J23/92 ,  B01J27/132 ,  B01J27/32 ,  B01J37/12 ,  B01J37/14 ,  B01J37/16 ,  B01J37/18 ,  B01J37/24 ,  B01J37/26 ,  B01J38/04 ,  B01J38/10 ,  B01J38/12 ,  B01J38/42 ,  B01J38/46 ,  B01J2523/67 ,  C07C17/087 ,  C07C17/21 ,  C07C19/08 ,  Y02P20/584 ,  C07C21/18

Abstract: The present invention relates to a method for fluorinating a chlorinated compound including the steps of (a) placing said chlorinated compound in contact with gaseous hydrogen fluoride within a reactor and in the presence of a fluorination catalyst to produce a fluorinated compound, and (b) regenerating the fluorination catalyst used in step a), the step of regenerating the fluorination catalyst including (c) treating said fluorination catalyst with an oxidizing agent to form an oxidized fluorination catalyst, and (d) treating the oxidized fluorination catalyst obtained in step (c) with a gas mixture including a reducing agent.

公开(公告)号：US11352533B2

公开(公告)日：2022-06-07

申请号：US16135566

申请日：2018-09-19

Applicant: ARKEMA FRANCE

Inventor： David Andre ,  Beatrice Boussand ,  Wissam Rached

IPC: C09K5/04

Abstract: The invention relates to a method for cooling or heating a fluid or a body by means of a vapour compression circuit containing a heat transfer fluid, said circuit being at least partially contained in an enclosure, and the relative humidity of the air in the enclosure being less than or equal to a threshold value H1 which is less than 50%, the flammability of the heat transfer fluid at relative humidity H1 being less than the flammability of the heat transfer fluid at 50% relative humidity.
The invention also relates to a cooling or heating installation suited to the implementation of this method. The invention also relates to a method of protection against the risks of fire or explosion in an enclosure containing at least partially a vapour compression circuit containing a heat transfer fluid, as well as a method for reducing the GWP of a transfer fluid. The invention also relates to heat transfer fluids suited to the implementation of the above methods.