Abstract: The present invention relates to a process for the purification of a fluorocarbon from a mixture comprising said fluorocarbon and hydrogen, said process comprising a stage of bringing said mixture into contact with a membrane M1 to form a stream F1 comprising the fluorocarbon and a stream F2 comprising the hydrogen. The present invention also relates to a process for the production of trifluoroethylene. The present invention also relates to a process for the separation of a hydrofluoroolefin or of a hydrofluoroalkane from nitrogen by membrane separation. The present invention also relates to a process for the separation of trifluoroethylene from chlorotrifluoroethylene or from a hydrofluorocarbon.

Abstract: The present invention relates to a process for the purification of a fluorocarbon from a mixture comprising said fluorocarbon and hydrogen, said process comprising a stage of bringing said mixture into contact with a membrane M1 to form a stream F1 comprising the fluorocarbon and a stream F2 comprising the hydrogen. The present invention also relates to a process for the production of trifluoroethylene. The present invention also relates to a process for the separation of a hydrofluoroolefin or of a hydrofluoroalkane from nitrogen by membrane separation. The present invention also relates to a process for the separation of trifluoroethylene from chlorotrifluoroethylene or from a hydrofluorocarbon.

Abstract: The present invention relates to a process for the purification of a fluorocarbon from a mixture comprising said fluorocarbon and hydrogen, said process comprising a stage of bringing said mixture into contact with a membrane M1 to form a stream F1 comprising the fluorocarbon and a stream F2 comprising the hydrogen. The present invention also relates to a process for the production of trifluoroethylene. The present invention also relates to a process for the separation of a hydrofluoroolefin or of a hydrofluoroalkane from nitrogen by membrane separation. The present invention also relates to a process for the separation of trifluoroethylene from chlorotrifluoroethylene or from a hydrofluorocarbon.

Abstract: The present invention relates to a process for the purification of a fluorocarbon from a mixture comprising said fluorocarbon and hydrogen, said process comprising a stage of bringing said mixture into contact with a membrane M1 to form a stream F1 comprising the fluorocarbon and a stream F2 comprising the hydrogen. The present invention also relates to a process for the production of trifluoroethylene. The present invention also relates to a process for the separation of a hydrofluoroolefin or of a hydrofluoroalkane from nitrogen by membrane separation. The present invention also relates to a process for the separation of trifluoroethylene from chlorotrifluoroethylene or from a hydrofluorocarbon.

Abstract: A method for producing trifluoroethylene in a reactor with a fixed catalytic bed comprising a catalyst, comprises the steps of: a) reacting chlorotrifluoroethylene with hydrogen in the presence of the catalyst and in the gas phase, to produce a flow of product comprising trifluoroethylene; b) treating the flow of product obtained in step a) in order to recover a stream A comprising trifluoroethylene, chlorotrifluoroethylene and an additional compound selected from the group consisting of 1,1-difluoroethylene, 1,1,1,2-tetrafluoroethane, 1,1,1-trifluoroethane and ethane; wherein the total content by weight of the additional compound is less than 0.5%; c) distilling stream A to recover a stream B comprising at least 99% by weight of trifluoroethylene and less than 0.2% by weight of one or more additional compounds. A composition comprising at least 99% by weight of trifluoroethylene and from 0.1 to 1000 ppm of ethane, and/or from 0.

Abstract: The present invention relates to a process for producing trifluoroethylene in a reactor provided with a fixed catalytic bed comprising a catalyst, said process comprising the steps of: a) reacting chlorotrifluoroethylene with hydrogen in the presence of the catalyst and in the gas phase to produce a stream A comprising trifluoroethylene; b) treating said stream A under conditions sufficient to produce a stream D1 comprising 1,1,2-trifluoroethane in a content of less than 15% by weight on the basis of the total weight of said stream D1, c) recycling stream D1 to step a).

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.

Abstract: A process for the production of trifluoroethylene in a reactor provided with a catalytic bed including a catalyst, the process including: i) a step of activating the catalyst, including bringing it into contact with a gaseous stream including a reducing agent, an inert gas or a mixture thereof; and ii) a step of reacting chlorotrifluoroethylene with hydrogen in the presence of the catalyst activated in step i) and in the gas phase in order to produce a stream including trifluoroethylene; wherein during said step i), the temperature of the catalytic bed is increased from a temperature T1 to a temperature T2 that is greater than T1, with a temperature gradient of less than 0.5° C./min.

Abstract: The present invention relates to a process for the production of trifluoroethylene in a reactor equipped with a fixed catalytic bed comprising a catalyst, said process comprising a stage a) of reaction of chlorotrifluoroethylene with hydrogen in the presence of the catalyst and in the gas phase in order to produce a stream comprising trifluoroethylene; said stage a) being carried out at a temperature of the fixed catalytic bed T1 of between 50° C. and 250° C.; said process being characterized in that, during stage a), the temperature of the fixed catalytic bed T1 is increased provided that it does not exceed 300° C.

Abstract: 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.

Abstract: 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.

Abstract: 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.