公开(公告)号：US09447003B2

公开(公告)日：2016-09-20

申请号：US14381247

申请日：2013-02-22

Applicant: ARKEMA FRANCE

Inventor： Philippe Leduc ,  Thierry Lannuzel ,  Dominique Garrait ,  Serge Hub ,  Emmanuel Guiraud ,  Fabrice Domingues Dos Santos

IPC: C07C17/23 ,  C08F214/22 ,  B01J35/10 ,  B01J23/44 ,  C07C17/383 ,  H01L41/45 ,  H01L41/193

CPC classification number: C07C17/23 ,  B01J23/44 ,  B01J35/1009 ,  B01J35/1042 ,  C07C17/383 ,  C08F214/22 ,  H01L41/193 ,  H01L41/45 ,  C07C21/18

Abstract: The present invention relates to the preparation of trifluoroethylene (VF3 or TrFE) by hydrogenolyzis of chlorotrifluoroethylene (CTFE) in the gaseous phase over a group VIII metal catalyst deposited on a support. This method can be used to obtain VF3 in an economical manner in conditions which minimize the risk of explosion of this molecule. Using a catalyst containing a group VIII metal and, more specifically, containing Pd deposited on a support and a specific series of steps of separation and purification makes it possible to obtain excellent CTFE conversion rates and high selectivity in VF3 at atmospheric pressure and at low temperatures.

Abstract translation: 本发明涉及在沉积在载体上的VIII族金属催化剂上，在气相中通过三氟氯乙烯（CTFE）的氢解制备三氟乙烯（VF3或TrFE）。 该方法可以以最小化该分子的爆炸危险的条件经济地获得VF3。 使用含有VIII族金属的催化剂，更具体地说，含有沉积在载体上的Pd和特定的一系列分离和纯化步骤使得可以在常压和低温下获得优异的CTFE转化率和VF3的高选择性 。

公开(公告)号：US11291977B2

公开(公告)日：2022-04-05

申请号：US16620913

申请日：2018-06-19

Applicant: Arkema France

Inventor： Dominique Deur-Bert ,  Dominique Garrait ,  Laurent Wendlinger

IPC: B01J23/44 ,  B01J21/04 ,  B01J35/10 ,  C07C17/354

Abstract: The present invention relates to a catalyst comprising a) from 90% to 99.99% by weight of alumina in which said alumina is at least 90% by weight α-alumina and b) from 0.01% to 10% by weight of at least one metal of valency 0 selected from the group consisting of Pd, Ru, Pt, Rh and Ir, characterized in that the chloride content of said catalyst is less than 500 ppm, based on the total weight of the catalyst.

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：US09981891B2

公开(公告)日：2018-05-29

申请号：US15101733

申请日：2014-11-28

Applicant: ARKEMA FRANCE

Inventor： Philippe Bonnet ,  Bertrand Collier ,  Dominique Garrait ,  Pierre-Marie Sedat

IPC: C07C17/20

CPC classification number: C07C17/206 ,  C07B2200/09 ,  C07C17/21 ,  C07C17/383 ,  C07C19/12 ,  C07C21/18

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.

公开(公告)号：US20150094432A1

公开(公告)日：2015-04-02

申请号：US14381247

申请日：2013-02-22

Applicant: ARKEMA FRANCE

Inventor： Philippe Leduc ,  Thierry Lannuzel ,  Dominique Garrait ,  Serge Hub ,  Emmanuel Guiraud ,  Fabrice Domingues Dos Santos

IPC: C07C17/23 ,  C08F214/22

CPC classification number: C07C17/23 ,  B01J23/44 ,  B01J35/1009 ,  B01J35/1042 ,  C07C17/383 ,  C08F214/22 ,  H01L41/193 ,  H01L41/45 ,  C07C21/18

Abstract: The present invention relates to the preparation of trifluoroethylene (VF3 or TrFE) by hydrogenolysis of chlorotrifluoroethylene (CTFE) in the gaseous phase over a group VIII metal catalyst deposited on a support. This method can be used to obtain VF3 in an economical manner in conditions which minimize the risk of explosion of this molecule. Using a catalyst containing a group VIII metal and, more specifically, containing Pd deposited on a support and a specific series of steps of separation and purification makes it possible to obtain excellent CTFE conversion rates and high selectivity in VF3 at atmospheric pressure and at low temperatures.

Abstract translation: 本发明涉及通过在沉积在载体上的VIII族金属催化剂上在气相中氢氯三氟乙烯（CTFE）的氢解制备三氟乙烯（VF3或TrFE）。 该方法可以以最小化该分子的爆炸危险的条件经济地获得VF3。 使用含有VIII族金属的催化剂，更具体地说，含有沉积在载体上的Pd和特定的一系列分离和纯化步骤使得可以在常压和低温下获得优异的CTFE转化率和VF3的高选择性 。