Abstract: The present disclosure provides a process for producing trifluoroiodomethane. The process includes providing a metal trifluoroacetate, iodine monochloride, and a solvent, and reacting the metal trifluoroacetate and iodine monochloride in the presence of the solvent to produce trifluoroiodomethane.

Abstract: The present disclosure provides a process for producing trifluoroiodomethane. The process includes providing a metal trifluoroacetate, iodine, a phase transfer catalyst, and an organic solvent, and reacting the metal trifluoroacetate and iodine in the presence of the phase transfer catalyst and the organic solvent to produce trifluoroiodomethane.

Abstract: The present disclosure provides a process for producing trifluoroiodomethane (CF3I). The process includes providing vapor-phase reactants including trifluoroacetyl halide, hydrogen, and iodine, heating the vapor-phase reactants, and reacting the heated vapor-phase reactants in the presence of a catalyst to produce trifluoroiodomethane. The catalyst includes a transition metal.

Abstract: A process for the simultaneous removal of iron and phosphate ions from a chlorinated hydrocarbon waste stream, such as a waste stream derived from a process for manufacturing 1,1,1,3,3-pentachloropropane (HCC-240fa) and/or 1,1,1,3-tetrachloropropane (HCC-250fb). The waste stream contains at least one of chlorinated hydrocarbons, tributyl phosphate (TBP) and/or triethyl phosphate (TEP), iron, FeCl2 and/or FeCl3, a TBP-FeCl2 complex and/or a TBP-FeCl3 complex, and a TEP-FeCl2 complex and/or a TEP-FeCl3 complex, and is subjected to thermal oxidation to generate a second, aqueous waste stream containing at least one of hydrogen chloride (HCl), FeCl3 and/or FeCl2, and H3PO4. The second waste stream is exposed to a base to generate a precipitate including at least one insoluble compound selected from the group consisting of FePO4, Fe(OH)3, and Ca3(PO4)2, and the precipitate is separated from the second waste stream to produce a liquid phase including only trace amounts of iron and phosphate ions.

Abstract: The present disclosure provides a process for producing trifluoroiodomethane (CF3I). The process may include providing a vapor-phase reactant stream comprising trifluoroacetic acid and iodine and reacting the reactant stream in the presence of a catalyst to produce a product stream comprising the trifluoroiodomethane. The catalyst includes silicon carbide.

Abstract: The present disclosure provides a process for producing trifluoroiodomethane (CF3I). The process may include providing a vapor-phase reactant stream comprising trifluoroacetic acid and iodine and reacting the reactant stream in the presence of a catalyst to produce a product stream comprising the trifluoroiodomethane. The catalyst includes silicon carbide.

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.

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: A process for the simultaneous removal of iron and phosphate ions from a chlorinated hydrocarbon waste stream, such as a waste stream derived from a process for manufacturing 1,1,1,3,3-pentachloropropane (HCC-240fa) and/or 1,1,1,3-tetrachloropropane (HCC-250fb). The waste stream contains at least one of chlorinated hydrocarbons, tributyl phosphate (TBP) and/or triethyl phosphate (TEP), iron, FeCl2 and/or FeCl3, a TBP-FeCl2 complex and/or a TBP-FeCl3 complex, and a TEP-FeCl2 complex and/or a TEP-FeCl3 complex, and is subjected to thermal oxidation to generate a second, aqueous waste stream containing at least one of hydrogen chloride (HCl), FeCl3 and/or FeCl2, and H3PO4. The second waste stream is exposed to a base to generate a precipitate including at least one insoluble compound selected from the group consisting of FePO4, Fe(OH)3, and Ca3(PO4)2, and the precipitate is separated from the second waste stream to produce a liquid phase including only trace amounts of iron and phosphate ions.

Abstract: The present disclosure provides various manufacturing processes for the production of 2,3,3,3-tetrafluoropropene (HFO-1234yf or 1234yf). Such methods may allow for the improved yields, more economical processes, and waste reduction in the production of 1234yf and subsequent processes.

Abstract: The present disclosure provides various manufacturing processes for the production of 2,3,3,3-tetrafluoropropene (HFO-1234yf or 1234yf). Such methods may allow for the improved yields, more economical processes, and waste reduction in the production of 1234yf and subsequent processes.

Abstract: A method for removing unsaturated halogen impurities from 2,3,3,3-tetrafluoropropene (HFO-1234yf) of the type that may otherwise be difficult to separate from HFO-1234yf due to the impurities having boiling points which are close to that of HFO-1234yf and/or the potential of one or more of the impurities to form azeotropic mixtures with HFO-1234yf. A HFO-1234yf stream including unsaturated halogenated impurities is first passed through a caustic scrubber and is then passed through an acid scrubber. In the caustic scrubber and acidic scrubber, undesirable impurities are removed, in particular, 3,3,3-trifluoropropene (1243zf), 1-chloro-1-fluoroethylene (1131a), vinyl chloride (1140), and/or 1-chloro-2-fluoroethylene (1131).

Abstract: In the halogenation reaction of organic olefin compounds, an excess amount of halogen gas (fluorine, chlorine, vaporized bromine and iodine, or their combination) is normally used in order to achieve as complete as possible conversion of the organic starting material. In a conventional process, the excess halogen gas in the off-gas stream is scrubbed by caustic solution which increases the consumption of halogen and generates waste for disposal. The present invention provides a novel process to recover and reuse the excess halogen gas and thus reduce the operating cost of the process.

Abstract: The present invention provides a method for the high yield production of HCC-1230xa from the known four step method, wherein the Step 3 crude product (crude HCC-240db) is used directly as the starting material in the Step 4 reaction—but only if the crude HCC-240db contains less than 0.5 wt % of impurities selected from the group consisting of HCC-250fb, HCC-1240za, and mixtures thereof.

Abstract: Embodiments of a series-coupled fluidized bed reactor unit are provided. In one embodiment, the reactor unit includes primary and secondary reactors. The primary reactor includes a reaction vessel, a gas distributor fluidly coupled to the reaction vessel, and a cyclonic plenum assembly. The cyclonic plenum assembly includes a plenum assembly housing, which is fluidly coupled to the gas distributor and which has an annular sidewall; and a gas/solids inlet pipe, which fluidly couples a partially-reacted gas outlet of the secondary reactor to the plenum assembly housing. The gas/solids inlet pipe is tangentially positioned with respect to the annular sidewall of the plenum assembly housing to induce vortex flow within the plenum assembly housing of the partially-reacted gas received from the secondary fluidized bed reactor through the gas/solids inlet pipe to promote the cyclonic separation of entrained solids from the partially-reacted gas prior to entry into the gas distributor.

Abstract: In the halogenation reaction of organic olefin compounds, an excess amount of halogen gas (fluorine, chlorine, vaporized bromine and iodine, or their combination) is normally used in order to achieve as complete as possible conversion of the organic starting material. In a conventional process, the excess halogen gas in the off-gas stream is scrubbed by caustic solution which increases the consumption of halogen and generates waste for disposal. The present invention provides a novel process to recover and reuse the excess halogen gas and thus reduce the operating cost of the process.

Abstract: In the halogenation reaction of olefin/halo-olefin (i.e., organic), an excess amount of halogen gas (fluorine, chlorine, vaporized bromine and iodine, or their combination) is normally used in order to achieve as complete as possible conversion of the organic. In a conventional process, the excess halogen gas in the off-gas stream is scrubbed by caustic solution which increases the consumption of halogen and generates waste for disposal. The present invention provides a novel process to recover and reuse the excess halogen gas and thus reduce the operating cost of the process.

Abstract: In the halogenation reaction of olefin/halo-olefin (i.e., organic), an excess amount of halogen gas (fluorine, chlorine, vaporized bromine and iodine, or their combination) is normally used in order to achieve as complete as possible conversion of the organic. In a conventional process, the excess halogen gas in the off-gas stream is scrubbed by caustic solution which increases the consumption of halogen and generates waste for disposal. The present invention provides a novel process to recover and reuse the excess halogen gas and thus reduce the operating cost of the process.

Abstract: The present invention provides a method for the high yield production of HCC-1230xa from the known four step method, wherein the Step 3 crude product (crude HCC-240db) is used directly as the starting material in the Step 4 reaction—but only if the crude HCC-240db contains less than 0.5 wt % of impurities selected from the group consisting of HCC-250fb, HCC-1240za, and mixtures thereof.

Abstract: Disclosed is a process for the synthesis of 1,1,2,3-tetrachloropropene (HCC-1230xa) using 1,1,3-trichloropropene (HCC-1240za) and/or 3,3,3-trichloropropene (HCC-1240zf) and Cl2 gas as the reactants, wherein the process takes place in a single reactor system. Before this invention, HCC-1230xa was made in a two-step process using HCC-1240za/HCC-1240zf and Cl2 gas, and the processing was conducted using two separate reactors.