Abstract: HFO-1132 and, in particular, HFO-1132E, may be produced from 1,1,2-trichloro-1,2,2-trifluoroethane (CFC-113). In a first step, 1,1,2-trifluoroethane (HFC-143) is produced by hydrogenating 1,1,2-trichloro-1,2,2-trifluoroethane (CFC-113) by reaction with hydrogen in the presence of a catalyst to produce 1, 1,2-trifluoroethane (HFC-143). The highly exothermic hydrogenation step may be moderated by diluting the catalyst and/or by diluting the 1, 1,2-trichloro-1,2,2-trifluoroethane (CFC-113) feedstock. The 1, 1,2-trifluoroethane (HFC-143) may then be dehydrofluorinated in the presence of a catalyst to produce trans-1,2-difluoroethylene (HFO-1132E) and/or cis-1,2-difluoroethylene (HFO-1132Z). The cis-1,2-difluoroethylene (HFO-1132Z) may then be isomerized to produce trans-1,2-difluoroethylene (HFO-1132E).

Abstract: An integrated process for co-producing phosphorus pentafluoride (PF5) and fluorosulfonic acid (HSO3F) in high yield and purity via a single reaction step is provided. The method includes reacting a first reagent comprising an aqueous solution of hexafluorophosphoric acid (HPF6) and hydrofluoric acid (HF) with a second reagent comprising fuming sulfuric acid (H2SO4·SO3) and recovering a product mixture comprising phosphorus pentafluoride (PF5) and fluorosulfonic acid (HSO3F).

Abstract: The present disclosure provides high purity E-1,3,3,3-tetrafluoropropene (HFO-1234ze). More specifically, the present disclosure provides E-1,3,3,3-tetrafluoropropene (HFO-234ze) in at least 99.99% purity, containing less than 3 ppm 1,1,3,3,3-pentafluoropropene (HFO-1225zc). The present disclosure further provides a method of making high purity E-1,3,3,3-tetrafluoropropene (HFO-1234ze).

Abstract: The present disclosure provides an integrated process for producing trifluoroiodomethane (CF3I), in three steps: a) reacting a first reactant stream comprising hydrogen (H2) and iodine (I2) in the presence of a first catalyst to produce a first product stream comprising hydrogen iodide (HI); (b) reacting the first product stream with a second reactant stream comprising trifluoroacetyl chloride (TFAC) in the presence of a second catalyst to produce an intermediate product stream comprising trifluoroacetyl iodide (TFAI); and (c) reacting the intermediate product stream to produce a final product stream comprising trifluoroiodomethane. (CF3I).

Abstract: The present invention provides a process for producing hydrogen iodide. The process includes providing a vapor-phase reactant stream comprising hydrogen and iodine and reacting the reactant stream in the presence of a catalyst to produce a product stream comprising hydrogen iodide. The catalyst includes at least one selected from the group of nickel, cobalt, cobalt halides, iron, nickel oxide, nickel halides, copper, copper oxide, copper halides, cobalt oxide, ferrous chloride, ferric chloride, iron oxide, zinc, zinc oxide, zinc halides, molybdenum, tungsten, magnesium, magnesium oxide, and magnesium halides. The catalyst is supported on a support.

Abstract: An azeotrope or azeotrope-like composition consisting essentially of effective amounts of 1-chloro-1,1,2-trifluoroethane (HCFC-133b) and 1,1,2-trifluoroethane (HFC-143). Methods for separating the azeotrope or azeotrope-like composition and/or exploiting the composition in extractive and pressure swing distillation are also disclosed in connection with methods of manufacturing 1,1,2-trifluoroethane (HFC-143).

Abstract: An azeotrope or azeotrope-like composition consisting essentially of effective amounts of 1,2-dichloro-1,1,2-trifluoroethane (HCFC-123a) and 1-chloro-1,2-difluoroethane (HCFC-142a). Methods for separating the azeotrope or azeotrope-like composition and/or exploiting the composition in extractive and pressure swing distillation are also disclosed in connection with methods of manufacturing 1,1,2-trifluoroethane (HFC-143).

Abstract: An azeotrope or azeotrope-like composition consisting essentially of effective amounts of 1,1,2-trichloro-1,2,2-trifluoroethane (CFC-113) and 1,1,2-trifluoroethane (HFC-143). Methods for separating the azeotrope or azeotrope-like composition and/or exploiting the composition in extractive and pressure swing distillation are also disclosed in connection with methods of manufacturing 1,1,2-trifluoroethane (HFC-143).

Abstract: An azeotrope or azeotrope-like composition consisting essentially of effective amounts of 1-chloro-1,1-difluoroethane (HCFC-142b) and 1,1,2-trifluoroethane (HFC-143). Methods for separating the azeotrope or azeotrope-like composition and/or exploiting the composition in extractive and pressure swing distillation are also disclosed in connection with methods of manufacturing 1,1,2-trifluoroethane (HFC-143).

Abstract: An azeotrope or azeotrope-like composition consisting essentially of effective amounts of 1,1,2-trichloro-1,2,2-trifluoroethane (CFC-113) and 1-chloro-1,2-difluoroethane (HCFC-142a). Methods for separating the azeotrope or azeotrope-like composition and/or exploiting the composition in extractive and pressure swing distillation are also disclosed in connection with methods of manufacturing 1,1,2-trifluoroethane (HFC-143).

Abstract: Production of HFO-1132 and, in particular, HFO-1132E, may be produced from 1,1,2-trichloro-1,2,2-trifluoroethane (CFC-113). In a first step, 1,1,2-trifluoroethane (HFC-143) is produced by hydrogenating 1,1,2-trichloro-1,2,2-trifluoroethane (CFC-113) by reaction with hydrogen in the presence of a catalyst to produce 1,1,2-trifluoroethane (HFC-143). The 1,1,2-trifluoroethane (HFC-143) may then be dehydrofluorinated in the presence of a catalyst to produce trans-1,2-difluoroethylene (HFO-1132E) and/or cis-1,2-difluoroethylene (HFO-1132Z). The cis-1,2-difluoroethylene (HFO-1132Z) may then be isomerized to produce trans-1,2-difluoroethylene (HFO-1132E).

Abstract: A method for reducing 1,1,1,2,2-pentafluoropropane (HFC-245cb) in a trans-1,3,3,3-tetrafluoropropene (HFO-1234ze(E)) manufacturing process including catalyst conditioning, temperature reduction, and contact time reduction. The method includes dehydrofluorinating 1,1,1,3,3-pentafluoropropane (HFC-245fa) with a catalyst mixture to produce a product mixture with HFO-1234ze(E) and HFC-245cb, and either incorporating a conditioned catalyst, using a lower temperature for the dehydrofluorination, or reducing the contact time for the dehydrofluorination to reduce the formation of HFC-245cb.

Abstract: The present disclosure provides a method for conversion of a mixture of high-boiling fluorinated components comprising 1,1,3,3-tetrachloro-1-fluoropropane (HCFC-241fa), 1,3,3-trichloro-1,1-difluoropropane (HCFC-242fa), 1,1,3-trichloro-1,3-difluoropropane (HCFC-242fb), 3,3-dichloro-1,1,1-trifluoropropane (HCFC-243fa), 1,3-dichloro-1,1,3-trifluoropropane (HCFC-243fb), 3-chloro-1,1,1,3-tetrafluoropropane (HCFC-244fa), their isomers, and combinations thereof, to 1-chloro-3,3,3-trifluoropropene (HCFO-1233zd). Heavy impurities, such as oligomers and other high boiling impurities, that are present may be purged during the process to prevent yield loss and reduction of catalyst efficacy.

Abstract: The present disclosure provides high purity E-1,3,3,3-tetrafluoropropene (HFO-1234ze). More specifically, the present disclosure provides E-1,3,3,3-tetrafluoropropene (HFO-234ze) in at least 99.99% purity, containing less than 3 ppm 1,1,3,3,3-pentafluoropropene (HFO-1225zc). The present disclosure further provides a method of making high purity E-1,3,3,3-tetrafluoropropene (HFO-1234ze).

Abstract: Impurities such as sulfur dioxide (SO2) are removed from trifluoroacetyl chloride (TFAC) through distillation, adsorption, or a combination thereof, and/or including the formation of an azeotrope or azeotrope-like composition including effective amounts of sulfur dioxide (SO2) and trifluoroacetyl chloride (TFAC). The trifluoroacetyl chloride (TFAC) thus purified may then be used in the manufacture of trifluoroiodomethane (CF3I). Also disclosed are azeotropes and azeotrope like compositions of sulfur dioxide (SO2) and trifluoroacetyl chloride (TFAC).

Abstract: The present disclosure provides a process for making trifluoroacetyl iodide (TFAI) in a liquid phase reaction. Specifically, the present disclosure provides a liquid phase reaction of trifluoroacetyl chloride (TFAC) and hydrogen iodide (HI), with or without a catalyst, to form trifluoroacetyl iodide (TFAI). The reaction may be performed at ambient or elevated temperatures.

Abstract: Processes for producing and/or purifying hydrogen iodide (HI), including methods for removing iodine-containing species from a mixture including at least one iodine containing species and hydrogen iodide, as well as methods for removing elemental iodine and hydrogen triiodide from a mixture including at least one iodine containing species and hydrogen iodide.

Abstract: The present disclosure provides a method of removing iodine (I2) and iodine-containing species from processes for producing trifluoroiodomethane (CF3I). The present disclosure further provides another method of removing iodine and iodine-containing species from trifluoroacetyl iodide (TFAI).

Abstract: The present disclosure provides a composition including trifluoroacetyl iodide, at least one organic impurity and at least one inorganic impurity. The at least one organic impurity includes at least one of: difluoroiodomethane, pentafluoroiodoethane, iodomethane, iodopropane, dichlorotetrafluoroethane, dichlorotrifluoroethane, trichlorotrifluoroethane, methyltrifluoroacetate, trifluoroacetic anhydride, difluorobutane and methyl propane. The at least one inorganic impurity includes at least one of: hydrogen iodide, hydrogen chloride, iodine and hydrogen triiodide.

Abstract: Impurities such as sulfur dioxide (SO2) are removed from trifluoroacetyl chloride (TFAC) through distillation, adsorption, or a combination thereof, and/or including the formation of an azeotrope or azeotrope-like composition including effective amounts of sulfur dioxide (SO2) and trifluoroacetyl chloride (TFAC). The trifluoroacetyl chloride (TFAC) thus purified may then be used in the manufacture of trifluoroiodomethane (CF3I). Also disclosed are azeotropes and azeotrope like compositions of sulfur dioxide (SO2) and trifluoroacetyl chloride (TFAC).