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.

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.

The present invention provides highly efficient processes for the preparation of chlorinated alkanes. The processes comprise contacting an alkene, halogenated alkene, or combinations thereof, a halogenated methane comprising at least one chlorine atom, at least one solid metallic catalyst, and a ligand forming a reaction mixture in a reactor. The product mixture does not contain a phase transfer catalyst. After a product mixture is formed, various fractions, distillation streams, and effluent streams are separated and/or treated with an aqueous alkaline substance. This treatment removes at least a portion of the metal and through recycling of the heavy fraction, treated product mixture, or combinations thereof, allows for the kinetics of the process to be maintained or increased.

The present invention provides highly efficient processes for the preparation of chlorinated alkanes. The processes comprise contacting an alkene, halogenated alkene, or combinations thereof, a halogenated methane comprising at least one chlorine atom, at least one solid metallic catalyst, and a ligand forming a reaction mixture in a reactor. The product mixture does not contain a phase transfer catalyst. After a product mixture is formed, various fractions, distillation streams, and effluent streams are separated and/or treated with an aqueous alkaline substance. This treatment removes at least a portion of the metal and through recycling of the heavy fraction, treated product mixture, or combinations thereof, allows for the kinetics of the process to be maintained or increased.

A full continuous flow synthesis process of fluorine-containing aromatic hydrocarbon compounds. Aromatic amine and hydrogen fluoride are respectively pumped into thermostats A and B, then flow into micro-channel reactor C for salt forming reaction whose temperature is kept constant; sulfuric acid solution of nitrosylsulfuric acid is pumped into thermostat D; after keeping the temperature constant, the sulfuric acid solution of nitrosylsulfuric acid and salt forming product flowing out from the micro-channel reactor C flow into micro-channel reactor E for diazotization reaction; the obtained product flows into micro-channel reactor F for thermal decomposition reaction, is cooled in cooler G, then enters three-phase separator H for continuous separation, fluorine-containing aromatic hydrocarbon crude product is subjected to continuous alkaline washing, drying and rectification to obtain fluorine-containing aromatic hydrocarbon finished product, and mixture of hydrofluoric acid and sulfuric acid is continuously distilled to obtain hydrogen fluoride and sulfuric acid.

A full continuous flow synthesis process of fluorine-containing aromatic hydrocarbon compounds. Aromatic amine and hydrogen fluoride are respectively pumped into thermostats A and B, then flow into micro-channel reactor C for salt forming reaction whose temperature is kept constant; sulfuric acid solution of nitrosylsulfuric acid is pumped into thermostat D; after keeping the temperature constant, the sulfuric acid solution of nitrosylsulfuric acid and salt forming product flowing out from the micro-channel reactor C flow into micro-channel reactor E for diazotization reaction; the obtained product flows into micro-channel reactor F for thermal decomposition reaction, is cooled in cooler G, then enters three-phase separator H for continuous separation, fluorine-containing aromatic hydrocarbon crude product is subjected to continuous alkaline washing, drying and rectification to obtain fluorine-containing aromatic hydrocarbon finished product, and mixture of hydrofluoric acid and sulfuric acid is continuously distilled to obtain hydrogen fluoride and sulfuric acid.

The invention relates to a process comprising contacting a composition comprising a (hydro)halocarbon and a compound of formula R.sub.f—C≡CX with a basic solution comprising an hydroxide, an alkoxide and/or an amide to reduce the concentration of R.sub.f—C≡CX, wherein R.sub.f is a perfluorinated alkyl group and X is H, F, Cl, Br, or I. The invention further relates to process for preparing a (hydro)halocarbon comprising (i) converting a starting material, optionally in the presence of HF and/or a catalyst, to a composition comprising the (hydro)halocarbon and a compound of formula R.sub.f—C≡CX, wherein R.sub.f is a perfluorinated alkyl group and X is H, F, Cl, Br, or I; (ii) contacting the composition with a basic solution comprising an hydroxide, an alkoxide and/or an amide to reduce the concentration of the compound of formula R.sub.f—C≡CX; and (iii) recovering the (hydro)halocarbon.

The invention relates to a process comprising contacting a composition comprising a (hydro)halocarbon and a compound of formula R.sub.f—C≡CX with a basic solution comprising an hydroxide, an alkoxide and/or an amide to reduce the concentration of R.sub.f—C≡CX, wherein R.sub.f is a perfluorinated alkyl group and X is H, F, Cl, Br, or I. The invention further relates to process for preparing a (hydro)halocarbon comprising (i) converting a starting material, optionally in the presence of HF and/or a catalyst, to a composition comprising the (hydro)halocarbon and a compound of formula R.sub.f—C≡CX, wherein R.sub.f is a perfluorinated alkyl group and X is H, F, Cl, Br, or I; (ii) contacting the composition with a basic solution comprising an hydroxide, an alkoxide and/or an amide to reduce the concentration of the compound of formula R.sub.f—C≡CX; and (iii) recovering the (hydro)halocarbon.

The invention relates to a process comprising contacting a composition comprising a (hydro)halocarbon and a compound of formula R.sub.f—C≡CX with a basic solution comprising an hydroxide, an alkoxide and/or an amide to reduce the concentration of R.sub.f—C≡CX, wherein R.sub.f is a perfluorinated alkyl group and X is H, F, Cl, Br, or I. The invention further relates to process for preparing a (hydro)halocarbon comprising (i) converting a starting material, optionally in the presence of HF and/or a catalyst, to a composition comprising the (hydro)halocarbon and a compound of formula R.sub.f—C≡CX, wherein R.sub.f is a perfluorinated alkyl group and X is H, F, Cl, Br, or I; (ii) contacting the composition with a basic solution comprising an hydroxide, an alkoxide and/or an amide to reduce the concentration of the compound of formula R.sub.f—C≡CX; and (iii) recovering the (hydro)halocarbon.

The present disclosure relates to a method for producing trifluoroiodomethane (CF.sub.3I) from iodine (I.sub.2) and trifluoroacetic anhydride (TFAA) under photochemical conditions using ultraviolet (UV) light.