Patents by Inventor Anne Pigamo
Anne Pigamo has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11912640Abstract: The present invention relates to a process for neutralizing a composition A comprising 1-chloro-3,3,3-trifluoropropene, 1,1-dichloro-1,3,3-trifluoropropane and one or more acid compound(s) of formula HX with X?F or Cl; said process comprising the step a) of bringing said composition A into contact with a solution B under conditions capable of limiting the formation of 1-chloro-1,3,3-trifluoropropene.Type: GrantFiled: April 1, 2020Date of Patent: February 27, 2024Assignee: Arkema FranceInventors: Emmanuel Boussarie, Kevin Hisler, Anne Pigamo
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Patent number: 11746073Abstract: The present invention relates to a process for purifying 1-chloro-3,3,3-trifluoropropene comprising the steps of: a) providing a stream comprising 1-chloro-3,3,3-trifluoropropene and at least one compound of formula HX wherein X is F or Cl; b) bringing the stream from step a) into contact with a solution A comprising at least one sulfite salt of formula Yn+mSO3 wherein Y is an alkali or alkaline-earth metal, n=1 or 2, and m=2 when n=1 or m=1 when n=2; in order to form a neutralized stream A1 comprising 1-chloro-3,3,3-trifluoropropene.Type: GrantFiled: April 1, 2020Date of Patent: September 5, 2023Assignee: Arkema FranceInventors: Emmanuel Boussarie, Kevin Hisler, Anne Pigamo, Bertrand Collier
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Patent number: 11459285Abstract: A process for manufacturing tetrafluoropropene, including, alternately: at least one step of reacting a chlorinated compound with hydrofluoric acid in the gas phase, in the presence of a fluorination catalyst, the proportion of oxygen optionally present being less than 0.05 mol. % relative to the chlorinated compound; a step of regenerating the fluorination catalyst by bringing the fluorination catalyst into contact with a regeneration stream including an oxidizing agent. Also, equipment suitable for carrying out this process.Type: GrantFiled: January 17, 2019Date of Patent: October 4, 2022Assignee: ARKEMA FRANCEInventors: Anne Pigamo, Laurent Wendlinger, Dominique Duer-Bert
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Publication number: 20220204428Abstract: The present invention relates to a process for neutralizing a composition A comprising 1-chloro-3,3,3-trifluoropropene, 1,1-dichloro-1,3,3-trifluoropropane and one or more acid compound(s) of formula HX with X?F or Cl; said process comprising the step a) of bringing said composition A into contact with a solution B under conditions capable of limiting the formation of 1-chloro-1,3,3-trifluoropropene.Type: ApplicationFiled: April 1, 2020Publication date: June 30, 2022Inventors: Emmanuel BOUSSARIE, Kevin HISLER, Anne PIGAMO
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Publication number: 20220153665Abstract: The present invention relates to a process for purifying 1-chloro-3,3,3-trifluoropropene comprising the steps of: a) providing a stream comprising 1-chloro-3,3,3-trifluoropropene and at least one compound of formula HX wherein X is F or Cl; b) bringing the stream from step a) into contact with a solution A comprising at least one sulfite salt of formula Yn+mSO3 wherein Y is an alkali or alkaline-earth metal, n=1 or 2, and m=2 when n=1 or m=1 when n=2; in order to form a neutralized stream A1 comprising 1-chloro-3,3,3-trifluoropropene.Type: ApplicationFiled: April 1, 2020Publication date: May 19, 2022Inventors: Emmanuel BOUSSARIE, Kevin HISLER, Anne PIGAMO, Bertrand COLLIER
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Publication number: 20220112145Abstract: A composition including at least 98 mol % of (E/Z)-1-chloro-3,3,3-trifluoropropene and less than 0.5 mol % of coproducts selected from 1,3,3,3-tetrafluoropropene and 1,1,1,3,3-pentafluoropropane. A composition obtained from a process for producing 1-chloro-3,3,3-trifluoropropene, including the step i) of contacting hydrofluoric acid (HF) in a reactor with a starting composition including at least one of the chloro compounds selected from 1,1,3,3-tetrachloropropene (1230za), 1,3,3,3-tetrachloropropene (1230zd) and 1,1,1,3,3-pentachloropropane (240fa), or a mixture thereof, to produce a stream A including 1-chloro-3,3,3-trifluoropropene (1233zd), wherein the step i) is carried out in a low-HF liquid phase.Type: ApplicationFiled: December 21, 2021Publication date: April 14, 2022Applicant: Arkema FranceInventors: Anne PIGAMO, Cédric LAVY
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Patent number: 11286221Abstract: 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 A1 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).Type: GrantFiled: June 21, 2019Date of Patent: March 29, 2022Assignee: ARKEMA FRANCEInventors: Kevin Hisler, Anne Pigamo, Laurent Wendlinger, Emmanuel Boussarie
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Patent number: 11247952Abstract: A process for producing 2,3,3,3-tetrafluoropropene comprises the steps: i) in a first adiabatic reactor comprising a fixed bed composed of an inlet and an outlet, bringing 2-chloro-3,3,3-trifluoropropene into contact with hydrofluoric acid in the gas phase in the presence of a catalyst to produce a stream A comprising 2,3,3,3-tetrafluoropropene, HF and unreacted 2-chloro-3,3,3-trifluoropropene; and ii) in a second adiabatic reactor comprising a fixed bed composed of an inlet and an outlet, bringing hydrofluoric acid into contact in the gas phase, optionally in the presence of a catalyst, with at least one chlorinated compound to produce a stream B comprising 2-chloro-3,3,3-trifluoropropene. The stream A obtained in step i) feeds said second reactor. The inlet temperature of the fixed bed of one of said first or second reactors is between 300° C. and 400° C. The longitudinal temperature difference between the inlet and the outlet of the fixed bed in question is less than 20° C.Type: GrantFiled: June 6, 2019Date of Patent: February 15, 2022Assignee: Arkema FranceInventors: Bertrand Collier, Dominique Deur-Bert, Anne Pigamo, Audrey Riehl, Laurent Wendlinger
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Patent number: 11242304Abstract: The present invention relates to a process for producing 1-chloro-3,3,3-trifluoropropene, comprising the step i) of contacting hydrofluoric acid (HF) in a reactor with a starting composition comprising at least one of the chloro compounds selected from the group consisting of 1,1,3,3-tetrachloropropene (1230za), 1,3,3,3-tetrachloropropene (1230zd) and 1,1,1,3,3-pentachloropropane (240fa), or a mixture thereof, to produce a stream A comprising 1-chloro-3,3,3-trifluoropropene (1233zd), characterized in that said step i) is carried out in a low-HF liquid phase.Type: GrantFiled: May 13, 2019Date of Patent: February 8, 2022Assignee: ARKEMA FRANCEInventors: Anne Pigamo, Cédric Lavy
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Patent number: 11225445Abstract: A process for the production of trans-1-chloro-3,3,3-trifluoropropene comprises the steps of: i) providing a reactor comprising a cover, a bottom, sidewalls connecting said bottom and said cover, at least one reagent supply line and at least one line for drawing off the products formed, said reactor further containing a liquid phase A; ii) providing a stream B comprising hydrofluoric acid heated to a temperature T1 of from 100° C. to 170° C. and providing a stream C comprising 1,1,3,3-tetrachloropropene and/or 1,3,3,3-tetrachloropropene; stream B and stream C supplying said reactor via said at least one reagent supply line; iii) reacting, in liquid phase A, stream B with stream C to form a stream D comprising trans-1-chloro-3,3,3-trifluoropropene. Step iii) is carried out at a temperature T2 of between 50° C. and 110° C., and the temperature difference between temperature T1 and temperature T2 is greater than 30° C.Type: GrantFiled: July 16, 2019Date of Patent: January 18, 2022Assignee: Arkema FranceInventors: Bertrand Collier, Anne Pigamo, Nicolas Brusadelli
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Patent number: 11192839Abstract: The present invention relates to a process for producing 2-chloro-3,3,3-trifluoropropene, comprising the steps: i) providing a stream A comprising at least one chlorinated compound selected from the group consisting of 2,3-dichloro-1,1,1-trifluoropropane, 1,1,1,2,3-pentachloropropane, 1,1,2,3-tetrachloropropene and 2,3,3,3-tetrachloropropene; and ii) in an adiabatic reactor comprising a fixed bed composed of an inlet and an outlet, bringing said stream A into contact, in the presence or absence of a catalyst, with HF in order to produce a stream B comprising 2-chloro-3,3,3-trifluoropropene, characterized in that the temperature at the inlet of the fixed bed of said adiabatic reactor is between 300° C. and 400° C. and the longitudinal temperature difference between the inlet of the fixed bed and the outlet of the fixed bed of said reactor is less than 20° C.Type: GrantFiled: June 6, 2019Date of Patent: December 7, 2021Assignee: Arkema FranceInventors: Bertrand Collier, Dominique Deur-Bert, Anne Pigamo, Audrey Riehl, Laurent Wendlinger
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Patent number: 11192837Abstract: A process for producing 2,3,3,3-tetrafluoropropene comprises i) in a first adiabatic reactor comprising a fixed bed composed of an inlet and an outlet, bringing hydrofluoric acid into contact, in the gas phase with at least one chlorinated compound in order to produce a stream A comprising 2-chloro-3,3,3-trifluoropropene, ii) in a second adiabatic reactor comprising a fixed bed composed of an inlet and an outlet, bringing the stream A into contact, in the gas phase in the presence of a catalyst, with hydrofluoric acid, to produce a stream B comprising 2,3,3,3-tetrafluoropropene. The temperature at the inlet of the fixed bed of one of said first or second reactors is between 300° C. and 400° C. The longitudinal temperature difference between the inlet and the outlet of the fixed bed of the reactor is less than 20° C.Type: GrantFiled: June 6, 2019Date of Patent: December 7, 2021Assignee: Arkema FranceInventors: Bertrand Collier, Dominique Deur-Bert, Anne Pigamo, Audrey Riehl, Laurent Wendlinger
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Publication number: 20210317053Abstract: A process for the production of trans-1-chloro-3,3,3-trifluoropropene comprises the steps of: i) providing a reactor comprising a cover, a bottom, sidewalls connecting said bottom and said cover, at least one reagent supply line and at least one line for drawing off the products formed, said reactor further containing a liquid phase A; ii) providing a stream B comprising hydrofluoric acid heated to a temperature T1 of from 100° C. to 170° C. and providing a stream C comprising 1,1,3,3-tetrachloropropene and/or 1,3,3,3-tetrachloropropene; stream B and stream C supplying said reactor via said at least one reagent supply line; iii) reacting, in liquid phase A, stream B with stream C to form a stream D comprising trans-1-chloro-3,3,3-trifluoropropene. Step iii) is carried out at a temperature T2 of between 50° C. and 110° C., and the temperature difference between temperature T1 and temperature T2 is greater than 30° C.Type: ApplicationFiled: July 16, 2019Publication date: October 14, 2021Inventors: Bertrand COLLIER, Anne PIGAMO, Nicolas BRUSADELLI
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Patent number: 11136282Abstract: The present invention relates to a process for producing 2,3,3,3-tetrafluoropropene, comprising the steps: i) providing a stream A comprising at least one starting compound selected from the group consisting of 2-chloro-3,3,3-trifluoropropene and 2,3-dichloro-1,1,1-trifluoropropane; and ii) in an adiabatic reactor comprising a fixed bed composed of an inlet and an outlet, bringing said stream A into contact, in the presence or absence of a catalyst, with HF in order to produce a stream B comprising 2,3,3,3-tetrafluoropropene, characterized in that the temperature at the inlet of the fixed bed of said adiabatic reactor is between 300° C. and 400° C. and the longitudinal temperature difference between the inlet of the fixed bed and the outlet of the fixed bed of said reactor is less than 20° C.Type: GrantFiled: June 6, 2019Date of Patent: October 5, 2021Assignee: ARKEMA FRANCEInventors: Bertrand Collier, Dominique Deur-Bert, Anne Pigamo, Audrey Riehl, Laurent Wendlinger
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Publication number: 20210261486Abstract: The present invention relates to a process for producing 2-chloro-3,3,3-trifluoropropene, comprising the steps: i) providing a stream A comprising at least one chlorinated compound selected from the group consisting of 2,3-dichloro-1,1,1-trifluoropropane, 1,1,1,2,3-pentachloropropane, 1,1,2,3-tetrachloropropene and 2,3,3,3-tetrachloropropene; and ii) in an adiabatic reactor comprising a fixed bed composed of an inlet and an outlet, bringing said stream A into contact, in the presence or absence of a catalyst, with HF in order to produce a stream B comprising 2-chloro-3,3,3-trifluoropropene, characterized in that the temperature at the inlet of the fixed bed of said adiabatic reactor is between 300° C. and 400° C. and the longitudinal temperature difference between the inlet of the fixed bed and the outlet of the fixed bed of said reactor is less than 20° C.Type: ApplicationFiled: June 6, 2019Publication date: August 26, 2021Inventors: Bertrand COLLIER, Dominique DEUR-BERT, Anne PIGAMO, Audrey RIEHL, Laurent WENDLINGER
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Publication number: 20210261485Abstract: 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).Type: ApplicationFiled: June 21, 2019Publication date: August 26, 2021Applicant: Arkema FranceInventors: Kevin HISLER, Anne PIGAMO, Laurent WENDLINGER, Emmanuel BOUSSARIE
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Publication number: 20210253501Abstract: A process for producing 2,3,3,3-tetrafluoropropene comprises i) in a first adiabatic reactor comprising a fixed bed composed of an inlet and an outlet, bringing hydrofluoric acid into contact, in the gas phase with at least one chlorinated compound in order to produce a stream A comprising 2-chloro-3,3,3-trifluoropropene, ii) in a second adiabatic reactor comprising a fixed bed composed of an inlet and an outlet, bringing the stream A into contact, in the gas phase in the presence of a catalyst, with hydrofluoric acid, to produce a stream B comprising 2,3,3,3-tetrafluoropropene. The temperature at the inlet of the fixed bed of one of said first or second reactors is between 300° C. and 400° C. The longitudinal temperature difference between the inlet and the outlet of the fixed bed of the reactor is less than 20° C.Type: ApplicationFiled: June 6, 2019Publication date: August 19, 2021Inventors: Bertrand COLLIER, Dominique DEUR-BERT, Anne PIGAMO, Audrey RIEHL, Laurent WENDLINGER
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Publication number: 20210253500Abstract: The present invention relates to a process for producing 2,3,3,3-tetrafluoropropene, comprising the steps: i) providing a stream A comprising at least one starting compound selected from the group consisting of 2-chloro-3,3,3-trifluoropropene and 2,3-dichloro-1,1,1-trifluoropropane; and ii) in an adiabatic reactor comprising a fixed bed composed of an inlet and an outlet, bringing said stream A into contact, in the presence or absence of a catalyst, with HF in order to produce a stream B comprising 2,3,3,3-tetrafluoropropene, characterized in that the temperature at the inlet of the fixed bed of said adiabatic reactor is between 300° C. and 400° C. and the longitudinal temperature difference between the inlet of the fixed bed and the outlet of the fixed bed of said reactor is less than 20° C.Type: ApplicationFiled: June 6, 2019Publication date: August 19, 2021Inventors: Bertrand COLLIER, Dominique DEUR-BERT, Anne PIGAMO, Audrey RIEHL, Laurent WENDLINGER
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Publication number: 20210246091Abstract: A process for producing 2,3,3,3-tetrafluoropropene comprises the steps: i) in a first adiabatic reactor comprising a fixed bed composed of an inlet and an outlet, bringing 2-chloro-3,3,3-trifluoropropene into contact with hydrofluoric acid in the gas phase in the presence of a catalyst to produce a stream A comprising 2,3,3,3-tetrafluoropropene, HF and unreacted 2-chloro-3,3,3-trifluoropropene; and ii) in a second adiabatic reactor comprising a fixed bed composed of an inlet and an outlet, bringing hydrofluoric acid into contact in the gas phase, optionally in the presence of a catalyst, with at least one chlorinated compound to produce a stream B comprising 2-chloro-3,3,3-trifluoropropene. The stream A obtained in step i) feeds said second reactor. The inlet temperature of the fixed bed of one of said first or second reactors is between 300° C. and 400° C. The longitudinal temperature difference between the inlet and the outlet of the fixed bed in question is less than 20° C.Type: ApplicationFiled: June 6, 2019Publication date: August 12, 2021Inventors: Bertrand COLLIER, Dominique DEUR-BERT, Anne PIGAMO, Audrey RIEHL, Laurent WENDLINGER
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Patent number: 11084768Abstract: A process for the production of 2,3,3,3-tetrafluoropropene including the stages: i) in a first reactor, bringing a stream A including 2-chloro-3,3,3-trifluoropropene into contact with hydrofluoric acid in the gas phase in the presence of a catalyst in order to produce a stream B including 2,3,3,3-tetrafluoropropene, HCl, HF and unreacted 2-chloro-3,3,3-trifluoropropene; and ii) in a second reactor, bringing hydrofluoric acid into contact, in the gas phase in the presence or not of a catalyst, with a stream including at least one chlorinated compound selected from the group of 1,1,1,2,3-pentachloropropane, 2,3-dichloro-1,1,1-trifluoropropane, 2,3,3,3-tetrachloropropene and 1,1,2,3-tetrachloropropene, in order to produce a stream C including 2-chloro-3,3,3-trifluoropropene, wherein the stream B obtained in stage i) feeds the second reactor used for stage ii); and wherein the electrical conductivity of the stream A provided in stage i) is less than 15 mS/cm.Type: GrantFiled: March 4, 2019Date of Patent: August 10, 2021Assignee: ARKEMA FRANCEInventors: Laurent Wendlinger, Dominique Deur-Bert, Anne Pigamo