Patents by Inventor Laurent Wendlinger
Laurent Wendlinger 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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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
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Patent number: 11059767Abstract: The present invention relates to a process for the gas-phase production of 2,3,3,3-tetrafluoropropene, comprising the steps: i) providing a composition A comprising 2-chloro-3,3,3-trifluoropropene and/or 2,3-dichloro-1,1,1-trifluoropropane and/or 2-chloro-1,1,1,2-tetrafluoropropane or a composition B comprising 1,1,1,2,2-pentafluoropropane and/or 1,1,1,2,3-pentafluoropropane; ii) placing said composition A in contact with hydrofluoric acid in the presence of a catalytic composition comprising a chromium-based catalyst or placing said composition B in contact with a catalytic composition comprising a chromium-based catalyst to produce a composition C comprising 2,3,3,3-tetrafluoropropene, characterized in that step ii) is performed at a temperature of between 310° C. and 450° C. and in that the temperature of step ii) is controlled so as not to exceed 450° C.; and when said catalyst is deactivated, the temperature of step ii) is increased in increments from 0.5° C. to 20° C.Type: GrantFiled: July 16, 2018Date of Patent: July 13, 2021Assignee: Arkema FranceInventors: Bertrand Collier, Dominique Deur-Bert, Anne Pigamo, Laurent Wendlinger
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Patent number: 11034635Abstract: The present invention relates to a process for producing 2,3,3,3-tetrafluoropropene, comprising the steps of: a) providing a stream A comprising at least one of the compounds selected from the group consisting of 2-chloro-3,3,3-trifluoropropene and 2,3-dichloro-1,1,1-trifluoropropane; b) in a reactor, bringing said stream A into contact with HF in the presence or absence of a fluorination catalyst in order to produce a stream B comprising 2,3,3,3-tetrafluoropropene; characterized in that the electrical conductivity of said stream A provided in step a) is less than 15 mS/cm.Type: GrantFiled: March 4, 2019Date of Patent: June 15, 2021Assignee: ARKEMA FRANCEInventors: Laurent Wendlinger, Dominique Deur-Bert, Anne Pigamo
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Patent number: 11028029Abstract: The present invention relates to a process for the production of 2,3,3,3-tetrafluoropropene comprising the stages: i) in a first reactor, bringing 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 A comprising 2,3,3,3-tetrafluoropropene, 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 absence of a catalyst, with at least one chlorinated compound selected from the group consisting 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 B comprising 2-chloro-3,3,3-trifluoropropene, characterized in that the stream A obtained in stage i) feeds said second reactor used for stage ii); and in that the pressure at the inlet of said first reactor of stage i) is greater than the pressure at the inlet of said second reaType: GrantFiled: November 8, 2018Date of Patent: June 8, 2021Assignee: Arkema FranceInventors: Bertrand Collier, Dominique Deur-Bert, Anne Pigamo, Laurent Wendlinger
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Patent number: 11028027Abstract: The present invention relates to a process for the production of 2-chloro-3,3,3-trifluoropropene comprising the stages of: a) providing a stream A comprising at least one of the compounds 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; b) in a reactor, bringing said stream A into contact with HF in the presence or absence of a catalyst in order to produce a stream B comprising 2-chloro-3,3,3-trifluoropropene; characterized in that the electrical conductivity of said stream A provided in stage a) is less than 15 mS/cm.Type: GrantFiled: March 4, 2019Date of Patent: June 8, 2021Assignee: ARKEMA FRANCEInventors: Laurent Wendlinger, Dominique Deur-Bert, Anne Pigamo
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Publication number: 20210156518Abstract: The present invention relates to a method for storing, in a closed container, a composition comprising 1,1,1,2,3,3-hexafluoropropane in a liquid/gas state composed of a liquid phase and of a gas phase, characterized in that i) a stream comprising 1,1,1,2,3,3-hexafluoropropane is injected into said container, said stream comprising an oxygen concentration of at most 5000 ppm by volume at a temperature of 25° C., and ii) the container is closed after injection of said stream. The present invention also relates to a container for storing 1,1,1,2,3,3-hexafluoropropane.Type: ApplicationFiled: July 16, 2018Publication date: May 27, 2021Inventors: Dominique DEUR-BERT, Laurent WENDLINGER
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Publication number: 20210155567Abstract: The present invention relates to a process for the gas-phase production of 2,3,3,3-tetrafluoropropene, comprising the steps: i) providing a composition A comprising 2-chloro-3,3,3-trifluoropropene and/or 2,3-dichloro-1,1,1-trifluoropropane and/or 2-chloro-1,1,1,2-tetrafluoropropane or a composition B comprising 1,1,1,2,2-pentafluoropropane and/or 1,1,1,2,3-pentafluoropropane; ii) placing said composition A in contact with hydrofluoric acid in the presence of a catalytic composition comprising a chromium-based catalyst or placing said composition B in contact with a catalytic composition comprising a chromium-based catalyst to produce a composition C comprising 2,3,3,3-tetrafluoropropene, characterized in that step ii) is performed at a temperature of between 310° C. and 450° C. and in that the temperature of step ii) is controlled so as not to exceed 450° C.; and when said catalyst is deactivated, the temperature of step ii) is increased in increments from 0.5° C. to 20° C.Type: ApplicationFiled: July 16, 2018Publication date: May 27, 2021Inventors: Bertrand COLLIER, Dominique DEUR-BERT, Anne PIGAMO, Laurent WENDLINGER
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Patent number: 11008268Abstract: The present invention relates to a process for producing a fluorinated compound, comprising the steps of providing a gas stream comprising hydrofluoric acid; providing at least one liquid stream of chlorinated compound; spraying said at least one liquid stream of chlorinated compound to form droplets; vaporizing said droplets produced in step c) by mixing with said gas stream, the resulting mixture being a gas mixture; catalytic reaction of the chlorinated compound with the hydrofluoric acid in the gas phase and collection of a product stream; characterized in that the droplets produced in step c) have a mean diameter of less than 500 ?m. The invention also relates to a facility for performing this process.Type: GrantFiled: November 5, 2018Date of Patent: May 18, 2021Assignee: Arkema FranceInventors: Dominique Deur-Bert, Laurent Wendlinger
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Patent number: 11001546Abstract: The present invention relates to an azeotropic or quasi-azeotropic composition comprising hydrogen fluoride, 2,3,3,3-tetrafluoropropene and 1,1,1,2,2-pentafluoropropane, characterized in that said composition has a boiling point above 40° C.Type: GrantFiled: February 1, 2019Date of Patent: May 11, 2021Assignee: ARKEMA FRANCEInventors: Dominique Deur-Bert, Laurent Wendlinger, Béatrice Berger
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Patent number: 10988423Abstract: 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.Type: GrantFiled: January 14, 2020Date of Patent: April 27, 2021Assignee: Arkema FranceInventors: David Andre, Dominique Deur-Bert, Dominique Garrait, Anne Pigamo, Laurent Wendlinger
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Publication number: 20210114955Abstract: The present invention relates to a process for modifying the fluorine distribution in a hydrocarbon compound, comprising a step of making contact between said hydrocarbon compound and a catalytic composition comprising a chromium-based catalyst, said process being performed in a reactor made of a material comprising a base layer made of a material M1 and an inner layer made of a material M2, said base layer and said inner layer being laid against each other by bonding.Type: ApplicationFiled: June 5, 2018Publication date: April 22, 2021Inventors: Dominique DEUR-BERT, Laurent WENDLINGER
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Publication number: 20210101854Abstract: 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).Type: ApplicationFiled: December 15, 2020Publication date: April 8, 2021Inventors: Abdelatif BABA-AHMED, Bertrand COLLIER, Dominique DEUR-BERT, Laurent WENDLINGER
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Patent number: 10947173Abstract: 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.Type: GrantFiled: April 20, 2018Date of Patent: March 16, 2021Assignee: Arkema FranceInventors: Dominique Deur-Bert, Dominique Garrait, Anne Pigamo, Laurent Wendlinger
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Patent number: 10927060Abstract: The present invention relates to a process for the production of 2,3,3,3-tetrafluoropropene comprising the stages: i) in a first reactor, bringing 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 A comprising 2,3,3,3-tetrafluoropropene, 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 absence of a catalyst, with at least one chlorinated compound selected from the group consisting of 1,1,1,2,3-pentachloropropane, 2,3-dichloro-1,1,1-trifluoropropane and 1,1,2,3-tetrachloropropene, in order to produce a stream B comprising 2-chloro-3,3,3-trifluoropropene, characterized in that the stream A obtained in stage i) feeds said second reactor used for stage ii); and in that stage i) is carried out at a temperature which is lower than or equal to the temperature at which stage ii) is carried out.Type: GrantFiled: July 16, 2018Date of Patent: February 23, 2021Assignee: Arkema FranceInventors: Bertrand Collier, Dominique Deur-Bert, Anne Pigamo, Laurent Wendlinger
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Patent number: 10919824Abstract: The present invention relates to a process for modifying the fluorine distribution in a hydrocarbon compound in the presence of a catalyst, characterized by the use, as catalyst, of a solid composition comprising at least one component containing chromium oxyfluoride or fluoride of empirical formula CrxM(1-x)OrFs, where 2r+s is greater than or equal to 2.9 and less than 6, M is a metal chosen from columns 2 to 12 of the Periodic Table of the Elements, x has a value from 0.9 to 1, s is greater than 0 and less than or equal to 6 and r is greater than or equal to 0 and less than 3, the said solid composition having a crystallinity of less than 20% by weight. The present invention also relates to the solid composition per se.Type: GrantFiled: August 28, 2017Date of Patent: February 16, 2021Assignee: ARKEMA FRANCEInventors: Dominique Garrait, Anne Pigamo, Laurent Wendlinger
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Patent number: 10899690Abstract: 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-pType: GrantFiled: December 14, 2016Date of Patent: January 26, 2021Assignee: Arkema FranceInventors: Abdelatif Baba-Ahmed, Bertrand Collier, Dominique Deur-Bert, Laurent Wendlinger
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Patent number: 10899689Abstract: 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.Type: GrantFiled: December 14, 2016Date of Patent: January 26, 2021Assignee: Arkema FranceInventors: Abdelatif Baba-Ahmed, Bertrand Collier, Dominique Deur-Bert, Laurent Wendlinger
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Patent number: 10899688Abstract: 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).Type: GrantFiled: December 14, 2016Date of Patent: January 26, 2021Assignee: Arkema FranceInventors: Abdelatif Baba-Ahmed, Bertrand Collier, Dominique Deur-Bert, Laurent Wendlinger