Abstract: A method of removing water from a mixture of iodine (I2) and water includes providing a mixture comprising iodine and water and: contacting the mixture with an adsorbent to selectively adsorb water from the mixture, contacting the mixture with a concentrated acid to absorb water from the mixture, separating the water from mixture by distillation, contacting the mixture with a gas that is inert to iodine (I2), contacting the mixture with hydrogen iodide (HI), or combinations thereof.

Abstract: Minimum-boiling, heterogeneous azeotropic and azeotrope-like compositions including 1,1,2,2,3-pentachloropropane (HCC-240aa) and hydrogen fluoride (HF), as well as methods for using these azeotropic or azeotrope-like compositions in the production of trifluorochloropropenes.

Abstract: A method of removing water from a mixture of iodine (I2) and water includes providing a mixture comprising iodine and water and: contacting the mixture with an adsorbent to selectively adsorb water from the mixture, contacting the mixture with a concentrated acid to absorb water from the mixture, separating the water from mixture by distillation, contacting the mixture with a gas that is inert to iodine (I2), contacting the mixture with hydrogen iodide (HI), or combinations thereof.

Abstract: An azeotrope or azeotrope-like composition consisting essentially of effective amounts of chloroethane (HCC-160) 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: The present disclosure provides a process for producing trifluoroiodomethane, the process comprising providing a reactant stream comprising hydrogen iodide and at least one trifluoroacetyl halide selected from the group consisting of trifluoroacetyl chloride, trifluoroacetyl fluoride, trifluoroacetyl bromide, and combinations thereof, reacting the reactant stream in the presence of a first catalyst at a first reaction temperature from about 25° C. to about 400° C. to produce an intermediate product stream comprising trifluoroacetyl iodide, and reacting the intermediate product stream in the presence of a second catalyst at a second reaction temperature from about 200° C. to about 600° C. to produce a final product stream comprising the trifluoroiodomethane.

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: 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 1,1,2-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: 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 1,2-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-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 1,1,2-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: 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: 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).

Abstract: The present disclosure provides a process for producing trifluoroiodomethane, the process comprising providing a reactant stream comprising hydrogen iodide and at least one trifluoroacetyl halide selected from the group consisting of trifluoroacetyl chloride, trifluoroacetyl fluoride, trifluoroacetyl bromide, and combinations thereof, reacting the reactant stream in the presence of a first catalyst at a first reaction temperature from about 25° C. to about 400° C. to produce an intermediate product stream comprising trifluoroacetyl iodide, and reacting the intermediate product stream in the presence of a second catalyst at a second reaction temperature from about 200° C. to about 600° C. to produce a final product stream comprising the trifluoroiodomethane.

Abstract: The present disclosure provides a method for purifying trifluoroiodomethane. The method includes providing a process stream comprising trifluoroiodomethane, organic impurities, and acid impurities; reacting the process stream with a basic aqueous solution, the basic aqueous solution comprising water and at least one base selected from the group of an alkali metal carbonate and an alkali metal hydroxide; and separating at least some of the organic impurities from the process stream.