公开(公告)号：US20190016653A1

公开(公告)日：2019-01-17

申请号：US16076810

申请日：2017-03-03

Applicant: Arkema France

Inventor： Abdelatif BABA-AHMED ,  Bertrand COLLIER ,  Dominique DEUR-BERT ,  Laurent WENDLINGER

IPC: C07C17/386 ,  C07C21/22 ,  C07C17/20 ,  B01D3/14

Abstract: The invention relates to an azeotropic or quasi-azeotropic composition comprising hydrochloric acid and trifluoropropyne. The invention also relates to a method for separating 2,3,3,3-tetrafluoropropene and trifluoropropyne from a composition A containing 2,3,3,3-tetrafluoropropene and trifluoropropyne, said method comprising the steps of bringing said composition A into contact with an inorganic compound in order to form a composition B; and distilling composition B in order to from a first flow B1 containing trifluoropropyne and the inorganic compound, and a second flow B2 containing 2,3,3,3-tetrafluoropropene.

公开(公告)号：US20180370881A1

公开(公告)日：2018-12-27

申请号：US16063304

申请日：2016-12-14

Applicant: Arkema France

Inventor： Abdelatif BABA-AHMED ,  Bertrand COLLIER ,  Dominique DEUR-BERT ,  Laurent WENDLINGER

IPC: C07C17/386 ,  C07C17/25

Abstract: The present invention concerns a method for producing for producing and purifying 2,3,3,3-tetrafluoro-1-propene (1234yf) from a first composition comprising 2,3,3,3-tetrafluoro-1-propene and chloromethane (40), said method comprising the steps of: (a) bringing said first composition into contact with at least one organic extractant in order to form a second composition; (b) extractive distillation of said second composition in order to form (i) a third composition comprising said organic extractant and chloromethane (40); and (ii) a stream comprising 2,3,3,3-tetrafluoro-1-propene (1234yf); (c) recovering and separating said third composition, preferably by distillation, in order to form a stream comprising said organic extractant and a stream comprising chloromethane (40).

公开(公告)号：US20200165181A1

公开(公告)日：2020-05-28

申请号：US16063775

申请日：2016-12-14

Applicant: Arkema France

Inventor： Abdelatif BABA-AHMED ,  Bertrand COLLIER ,  Dominique DEUR-BERT ,  Laurent WENDLINGER

IPC: C07C21/18 ,  C07C17/386

Abstract: The invention relates to a method for purifying 1,1,1,2,2-pentafluoropropane (245cb) using a first composition comprising 1,1,1,2,2-pentafluoropropane and at least one of the compounds selected from the group consisting of 1,1-difluoroethane (152a), 1,1,1,2-tetrafluoroethane (134a), trans-1,3,3,3-tetrafluoro-1-propene (1234ze-E), cis-1,3,3,3-tetrafluoro-1-propene (1234ze-Z), trans-1,2,3,3,3-pentafluoropropene (1225ye-E), cis-1,2,3,3,3-10 pentafluoropropene (1225ye-Z) and 3,3,3-trifluoropropene (1243zf), said method comprising the steps of: a) bringing said first composition into contact with at least one organic extraction agent in order to form a second composition; b) extractive distillation of said second composition in order to form i) a third composition comprising said organic extraction agent and said at least one of the compounds selected from the group consisting of 1,1-difluoroethane (152a), 1,1,1,2-tetrafluoroethane (134a), trans-1,3,3,3-tetrafluoro-1-propene (1234ze-E), cis-1,3,3,3-tetrafluoro-1-propene (1234ze-Z), trans-1,2,3,3,3-pentafluoropropene (1225ye-E), cis-1,2,3,3,3-pentafluoropropene (1225ye-Z) and 3,3,3-trifluoropropene (1243zf); and ii) a stream comprising the 1,1,1,2,2-pentafluoropropane; and c) recovery and separation of said third composition. The invention also relates to a method for producing 1234yf including the method for purifying 1,1,2,2-pentafluoropropane.

公开(公告)号：US20180370880A1

公开(公告)日：2018-12-27

申请号：US16063301

申请日：2016-12-14

Applicant: Arkema France

Inventor： Abdelatif BABA-AHMED ,  Bertrand COLLIER ,  Dominique DEUR-BERT ,  Irène EMERY ,  Laurent WENDLINGER

IPC: C07C17/386 ,  C07C17/25

CPC classification number: C07C17/386 ,  C07C17/25 ,  C07C19/08 ,  C07C21/18 ,  C09K5/045 ,  C09K2205/126

Abstract: The invention relates to a method for purifying 2,3,3,3-tetrafluoro-1-propene (1234yf) using a first composition comprising 2,3,3,3-tetrafluoro-1-propene, 1,1,1,2,2-pentafluoropropane (245cb) and trans-1,3,3,3-tetrafluoro-1-propene (1234ze-E), said method comprising the steps of: (a) bringing said first composition into contact with at least one organic extraction agent in order to form a second composition; (b) extractive distillation of said second composition in order to form a third composition comprising said organic extraction agent and trans-1,3,3,3-tetrafluoro-I-propene (I234ze-E), and a stream comprising the 2,3,3,3-tetrafluoro-I-propene and the 1,1,1,2,2-pentafluoropropane (245cb); and (c) recovery and separation of said third composition in order to form a stream comprising said organic extraction agent and a stream comprising the trans-1,3,3,3-tetrafluoro-I-propene (1234ze-E). The invention also relates to a method for producing 2,3,3,3-tetrafluoro-I-propene.

公开(公告)号：US20210101854A1

公开(公告)日：2021-04-08

申请号：US17121894

申请日：2020-12-15

Applicant: Arkema France

Inventor： Abdelatif BABA-AHMED ,  Bertrand COLLIER ,  Dominique DEUR-BERT ,  Laurent WENDLINGER

IPC: C07C17/386 ,  C07C17/383 ,  C07C19/08 ,  C07C19/03 ,  C07C19/10 ,  C07C17/38

Abstract: The invention relates to a method for producing and purifying 2,3,3,3-tetrafluoro-1-propene using a first composition comprising 2,3,3,3-tetrafluoro-1-propene, 3,3,3-trifluoropropene (1243zf), and trans-1,3,3,3-tetrafluoro-1-propene (1234ze-E), said method comprising the steps of: (a) bringing said first composition into contact with at least one organic extraction agent in order to form a second composition; (b) extractive distilaation of said second composition in order to form (i) a third composition comprising said organic extraction agent, 3,3,3-trifluoropropene (1243zf), and trans-1,3,3,3-tetrafluoro-1-propene (1234ze-E), and (ii) a stream comprising the 2,3,3,3-tetrafluoro-1-propene; and (c) recovery and separation of said third composition in order to form a stream comprising said organic extraction agent and a stream comprising 3,3,3-trifluoropropene (1243zf) and trans-1,3,3,3-tetrafluoro-1-propene (1234ze-E).

公开(公告)号：US20200165180A1

公开(公告)日：2020-05-28

申请号：US16063712

申请日：2016-12-14

Applicant: Arkema France

Inventor： Abdelatif BABA-AHMED ,  Bertrand COLLIER ,  Dominique DEUR-BERT ,  Laurent WENDLINGER

IPC: C07C17/386 ,  C07C21/18

Abstract: The invention relates to a method for producing and purifying 2,3,3,3-tetrafluoro-1-propene using a first composition comprising 2,3,3,3-tetrafluoro-1-propene, 3,3,3-trifluoropropene (1243zf), and trans-1,3,3,3-tetrafluoro-1-propene (1234ze-E), said method comprising the steps of: (a) bringing said first composition into contact with at least one organic extraction agent in order to form a second composition; (b) extractive distillation of said second composition in order to form (i) a third composition comprising said organic extraction agent, 3,3,3-trifluoropropene (1243zf), and trans-1,3,3,3-tetrafluoro-1-propene (1234ze-E), and (ii) a stream comprising the 2,3,3,3-tetrafluoro-1-propene; and (c) recovery and separation of said third composition in order to form a stream comprising said organic extraction agent and a stream comprising 3,3,3-trifluoropropene (1243zf) and trans-1,3,3,3-tetra-fluoro-1-propene (1234ze-E).

公开(公告)号：US20200157029A1

公开(公告)日：2020-05-21

申请号：US16063734

申请日：2016-12-14

Applicant: ARKEMA FRANCE

Inventor： Abdelatif BABA-AHMED ,  Bertrand COLLIER ,  Dominique DEUR-BERT ,  Laurent WENDLINGER

IPC: C07C21/18 ,  C07C17/383

Abstract: The invention concerns a method for purifying 2-chloro-3,3,3-trifluoropropene (1233xf) from a first composition comprising 2-chloro-3,3,3-trifluoropropene and at least one of the compounds chosen from the group consisting of E-1-chloro-3,3,3-trifluoro-1-propene (1233zd E), 1,1,1,3,3-pentafluoropropane (245fa) and 1,1,1,3,3,3-hexafluoropropane (236fa), said method comprising the steps of bringing said first composition into contact with at least one organic extractant in order to form a second composition; extractive distillation of said second composition in order to form a third composition comprising at least one of the compounds chosen from the group consisting of E-1-chloro-3,3,3-trifluoro-1-propene (1233zd E), 1,1,1,3,3-pentafluoropropane (245fa) and 1,1,1,3,3,3-hexafluoropropane (236fa), and said organic extractant; and a stream comprising 2-chloro-3,3,3-trifluoropropene.

公开(公告)号：US20240253988A1

公开(公告)日：2024-08-01

申请号：US18564355

申请日：2022-12-21

Applicant: ARKEMA FRANCE

Inventor： Abdelatif BABA-AHMED ,  David ANDRE ,  Jean-Michel BOSSOUTROT ,  Jean-Marc SAGE ,  Laurent WENDLINGER

IPC: C01B15/023

CPC classification number: C01B15/023

Abstract: The present invention relates to a process for the production of hydrogen peroxide by the cyclic Auto-Oxydation-process comprising the two alternate steps of: hydrogenation of a working solution in the presence of a catalyst, wherein said working solution contains at least one quinone dissolved in at least one organic solvent, to obtain at least one corresponding hydroquinone; and oxidation of said at least one hydroquinone; characterized in that the organic solvent has the formula (I):




wherein R1 is an aryl group comprising from 6 to 18 carbon atoms and R2 is an alkyl group comprising from 1 to 8 carbon atoms, when R2 is a methyl group, R1 is different from phenyl.

公开(公告)号：US20240246892A1

公开(公告)日：2024-07-25

申请号：US18564245

申请日：2022-06-03

Applicant: ARKEMA FRANCE

Inventor： Abdelatif BABA-AHMED ,  Alexandre CAMBRODON ,  Dominique GARRAIT ,  Thierry LANNUZEL ,  Cédric LAVY ,  Laurent WENDLINGER ,  Kevin HISLER

IPC: C07C21/18

CPC classification number: C07C21/18

Abstract: The present invention relates to an azeotropic or quasi-azeotropic composition comprising chlorotrifluoroethylene and at least one of the compounds selected from the group consisting of 1,1,2-trifluoroethane, 1,1-difluoroethane and a mixture of the two. The present invention also relates to an azeotropic or quasi-azeotropic composition comprising 1,1,2-trifluoroethane and at least one of the compounds selected from the group consisting of 2-chloro-1,1,1-trifluoroethane, 1-chloro-1,1,2-trifluoroethane and a mixture of the two.

公开(公告)号：US20190002376A1

公开(公告)日：2019-01-03

申请号：US16064013

申请日：2016-12-14

Applicant: Arkema France

Inventor： Abdelatif BABA-AHMED ,  Bertrand COLLIER ,  Dominique DEUR-BERT ,  Laurent WENDLINGER

IPC: C07C17/386 ,  C07C17/25 ,  B01D3/40

CPC classification number: C07C17/386 ,  B01D3/40 ,  C07C17/25 ,  C09K5/045 ,  C09K2205/126 ,  C07C21/18

Abstract: The present invention concerns a method for purifying 2,3,3,3-tetrafluoro-1-propene (1234yf) from a first composition comprising 2,3,3,3-tetrafluoro-1-propene and at least one of the compounds chosen from the group consisting of 1,1-difluoroethane (152a), chloropentafluoroethane (115), and trans-1,3,3,3-tetrafluoro-1-propene (1234ze-E) said method comprising the steps consisting of: a) bringing said first composition into contact with at least one organic extractant in order to form a second composition; b) extractive distillation of said second composition in order to form (i) a third composition comprising said organic extractant and said at least one of the compounds chosen from the group consisting of 1,1-difluoroethane (152a) chloropentafluoroethane (115), and trans-1,3,3,3-tetrafluoro-1-propene (1234ze-E); and ii) a stream comprising 2,3,3,3-tetrafluoro-1-propene. The invention also concerns a method for producing and purifying 2,3,3,3-tetrafluoro-1-propene.