B01J27/132

Integrated process for making 1-chloro-3,3,3-trifluoropropene (HCFO-1233zd) from a mixture of high-boiling fluorinated components

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.

Integrated process for making 1-chloro-3,3,3-trifluoropropene (HCFO-1233zd) from a mixture of high-boiling fluorinated components

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.

CARBIDE-DERIVED CARBONS HAVING INCORPORATED METAL CHLORIDE OR METALLIC NANOPARTICLES
20180117563 · 2018-05-03 ·

Carbide-derived carbons are provided that have high dynamic loading capacity for high vapor pressure gasses such as H.sub.2S, SO.sub.2, or NH.sub.3. The carbide-derived carbons can have a plurality of metal chloride or metallic nanoparticles entrapped therein. Carbide-derived carbons are provided by extracting a metal from a metal carbide by chlorination of the metal carbide to produce a porous carbon framework having residual metal chloride nanoparticles incorporated therein, and annealing the porous carbon framework with H.sub.2 to remove residual chloride by reducing the metal chloride nanoparticles to produce the metallic nanoparticles entrapped within the porous carbon framework. The metals can include Fe, Co, Mo, or a combination thereof. The carbide-derived carbons are provided with an ammonia dynamic loading capacity of 6.9 mmol g.sup.1 to 10 mmol g.sup.1 at a relative humidity of 0% RH to 75% RH.

CARBIDE-DERIVED CARBONS HAVING INCORPORATED METAL CHLORIDE OR METALLIC NANOPARTICLES
20180117563 · 2018-05-03 ·

Carbide-derived carbons are provided that have high dynamic loading capacity for high vapor pressure gasses such as H.sub.2S, SO.sub.2, or NH.sub.3. The carbide-derived carbons can have a plurality of metal chloride or metallic nanoparticles entrapped therein. Carbide-derived carbons are provided by extracting a metal from a metal carbide by chlorination of the metal carbide to produce a porous carbon framework having residual metal chloride nanoparticles incorporated therein, and annealing the porous carbon framework with H.sub.2 to remove residual chloride by reducing the metal chloride nanoparticles to produce the metallic nanoparticles entrapped within the porous carbon framework. The metals can include Fe, Co, Mo, or a combination thereof. The carbide-derived carbons are provided with an ammonia dynamic loading capacity of 6.9 mmol g.sup.1 to 10 mmol g.sup.1 at a relative humidity of 0% RH to 75% RH.

Catalytic chlorination of 3,3,3-trifluoropropene to 2,3-dichloro-1,1,1-trifluoropropane

The present invention relates to a process for preparing 1,1,1-trifluoro-2,3-dichloropropane which comprises contacting chlorine with 3,3,3-trifluoropropene in the presence of a catalyst to form 1,1,1-trifluoro-2,3-dichloropropane, wherein the catalyst comprises at least one metal halide, where the metal is a metal from Group 13, 14 or 15 of the periodic table or a transition metal or combination thereof.

Catalytic chlorination of 3,3,3-trifluoropropene to 2,3-dichloro-1,1,1-trifluoropropane

The present invention relates to a process for preparing 1,1,1-trifluoro-2,3-dichloropropane which comprises contacting chlorine with 3,3,3-trifluoropropene in the presence of a catalyst to form 1,1,1-trifluoro-2,3-dichloropropane, wherein the catalyst comprises at least one metal halide, where the metal is a metal from Group 13, 14 or 15 of the periodic table or a transition metal or combination thereof.

EPOXYDATION CATALYST SYSTEMS AND PROCESS FOR PREPARING EPOXIDES
20240375091 · 2024-11-14 ·

The invention relates to a first epoxydation catalyst system comprising a mixture of a metal salt of the metals chromium, manganese, molybdenum, lead and/or bismuth and a hydroxide as well as of a redox-active compound. The invention also relates to an additional second epoxydation catalyst system comprising a mixture of an additional metal salt, iodine and a hydroxide. Furthermore, the invention relates to a process for preparing epoxides comprising the oxidative reaction of an alkene in a reactor in the presence of the first epoxydation catalyst system or the second epoxydation catalyst system.

Use of Novel catalyst and method for treating PCB inked polymer waste by the novel catalyst
20180086892 · 2018-03-29 ·

A novel catalyst, a use thereof and a method for treating PCB inked waste by using the same are disclosed. The catalyst of the present disclosure is represented by the following formula (I):


[M(O).sub.a].sup.m+X.sup.n(I)

herein M, X, a, m and n are defined in the specification.

Use of Novel catalyst and method for treating PCB inked polymer waste by the novel catalyst
20180086892 · 2018-03-29 ·

A novel catalyst, a use thereof and a method for treating PCB inked waste by using the same are disclosed. The catalyst of the present disclosure is represented by the following formula (I):


[M(O).sub.a].sup.m+X.sup.n(I)

herein M, X, a, m and n are defined in the specification.

METHOD FOR PRODUCING (E)-1,1,1,4,4,4-HEXAFLUORO-2-BUTENE

Provided is a method capable of producing (E)-1,1,1,4,4,4-hexafluoro-2-butene at a high yield. The method for producing (E)-1,1,1,4,4,4-hexafluoro-2-butene includes vaporizing 1,2,3,4-tetrachlorobutane and reacting the 1,2,3,4-tetrachlorobutane vaporized in the vaporizing, with chlorine gas and hydrogen fluoride gas in the gas phase in the presence of a solid catalyst to yield (E)-1,1,1,4,4,4-hexafluoro-2-butene.