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370 results about "2,3,3,3-Tetrafluoropropene" patented technology
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2,3,3,3-Tetrafluoropropene, HFO-1234yf, is a hydrofluoroolefin (HFO) with the formula CH₂=CFCF₃. It is also designated R-1234yf as the first of a new class of refrigerants: it is marketed under the name Opteon YF by Chemours and as Solstice YF by Honeywell.
Integrated process to produce 2,3,3,3-tetrafluoropropene
ActiveUS20090240090A1Maximize raw material utilizationMaximize product yieldPreparation by hydrogen halide split-offPreparation by halogen halide additionChromium2,3,3,3-Tetrafluoropropene
A method for preparing 2,3,3,3-tetrafluoroprop-1-ene comprising (a) providing a starting composition comprising at least one compound having a structure selected from Formulae I, II and III:CX2═CCl—CH2X (Formula I)CX3—CCl═CH2 (Formula II)CX3—CHCl—CH2X (Formula III)wherein X is independently selected from F, Cl, Br, and I, provided that at least one X is not fluorine;(b) contacting said starting composition with a first fluorinating agent to produce a first intermediate composition comprising 2-chloro-3,3,3-trifluoropropene and a first chlorine-containing byproduct; (c) contacting said first intermediate composition with a second fluorinating agent to produce a second intermediate composition comprising 2-chloro-1,1,1,2-tetrafluoropropane and a second chlorine-containing byproduct; and (d) catalytically dehydrochlorinating at least a portion of said 2-chloro-1,1,1,2-tetrafluoropropane to produce a reaction product comprising 2,3,3,3-tetrafluoroprop-1-ene.
Owner:HONEYWELL INT INC
Integrated process to produce 2,3,3,3-tetrafluoropropene
ActiveUS8058486B2Maximize utilizationYield maximizationPreparation by hydrogen halide split-offPreparation by halogen halide additionChromium2,3,3,3-Tetrafluoropropene
Owner:HONEYWELL INT INC
Azeotrope compositions comprising 2,3,3,3-tetrafluoropropene and hydrogen fluoride and uses thereof
ActiveUS20070100175A1Preparation by hydrogen halide split-offHydrogen fluorideHydrogen fluoridePhysical chemistry
Owner:THE CHEMOURS CO FC LLC
Heat transfer compositions of hydrofluorocarbons and a hydrofluoroolefin
The present invention relates to heat transfer compositions comprising 2,3,3,3-tetrafluoropropene, difluoromethane, pentafluoroethane, and 1,1,1,2-tetrafluoroethane for use in refrigeration, air-conditioning, heat pump systems, and other heat transfer applications. The inventive heat transfer compositions can possess reduced global warming potential while providing good capacity and performance.
Owner:ARKEMA INC
METHOD FOR PRODUCING 2-CHLORO-3,3,3-TRIFLUOROPROPENE (HCFC-1233xf)
ActiveUS20090030244A1Speed up the conversion processLess resource-intensivePreparation by hydrogen halide split-offPreparation by halogen replacementHydrogen fluorideGas phase
The present invention relates to an improved method for manufacturing 2-chloro-3,3,3,-trifluoropropene (HCFC-1233xf) by reacting 1,1,2,3-tetrachloropropene, 1,1,1,2,3-pentachloropropane, and / or 2,3,3,3-tetrachloropropene with hydrogen fluoride, in a vapor phase reaction vessel in the presence of a vapor phase fluorination catalyst and stabilizer. HCFC-1233xf is an intermediate in the production of 2,3,3,3-tetrafluoropropene (HFO-1234yf) which is a refrigerant with low global warming potential.
Owner:HONEYWELL INT INC
PROCESS TO MANUFACTURE 2-CHLORO-1,1,1,2-TETRAFLUOROPROPANE (HCFC-244bb)
InactiveUS20100036179A1Preparation by dehalogenationPreparation by hydrogen halide split-offHydrogen fluorideHydrogen chloride
The invention provides an improved process to manufacture 2-chloro-1,1,1,2-tetrafluoropropane (HCFC-244bb) by reacting 2-chloro-3,3,3,-trifluoropropene (HCFO-1233xf) with hydrogen fluoride, in a liquid phase reaction in the presence of hydrogen chloride and a liquid phase fluorination catalyst. The hydrogen chloride is added into the reaction from an external source at a pressure of about 100 psig or more. The HCFC-244bb is an intermediate in the production of 2,3,3,3-tetrafluoropropene-1 (HFO-1234yf).
Owner:HONEYWELL INT INC
Process for synthesis of fluorinated olefins
ActiveUS20090099396A1Preparation by dehalogenationPreparation by hydrogen halide split-offHydrogenBromine
Disclosed is a process for the synthesis of fluorinated olefins, and in particularly preferred embodiments tetrafluorinated olefins having F on an unsaturated, non-terminal carbon, such as 2,3,3,3-tetrafluoropropene. The preferred processes of the present invention in accordance with one embodiment generally comprise:(a) reacting a compound of formula (I)X1X2 (I)with a compound of formula (II)CX1X2X3CX1═CX1X2 (II)to produce a reaction product comprising a compound of formula (III)CF3CHX1CH2X2 (III), and(b) exposing said compound of formula (III) to reaction conditions effective to convert said compound of formula (III) to a compound of formula (IV)CF3CZ=CH2 (IV)wherein X1, X2, and X3 are each independently selected from the group consisting of hydrogen, chlorine, bromine, fluorine and iodine, provided that X1 and X2 in formula (I) are not both hydrogen and Z is Cl, I, Br, or F.
Owner:HONEYWELL INT INC
Catalytic isomerization processes of 1,3,3,3-tetrafluoropropene for making 2,3,3,3-tetrafluoropropene
InactiveUS20080058562A1Increase volumePreparation by halogen halide additionIsomerization1,3,3,3-Tetrafluoropropene
The present invention relates to a process of catalyzed isomerization of HFC-1234ze to make HFC-1234yf. The process comprises contacting HFC-1234ze with a suitable catalyst in a reactor to obtain a product mixture comprising HFC-1234yf.
Owner:THE CHEMOURS CO FC LLC
Method for producing 2-chloro-3,3,3,-trifluoropropene (HCFC-1233xf)
ActiveUS7795480B2Preparation by hydrogen halide split-offPreparation by halogen replacementHydrogen fluorideGas phase
The present invention relates to an improved method for manufacturing 2-chloro-3,3,3,-trifluoropropene (HCFC-1233xf) by reacting 1,1,2,3-tetrachloropropene, 1,1,1,2,3-pentachloropropane, and / or 2,3,3,3-tetrachloropropene with hydrogen fluoride, in a vapor phase reaction vessel in the presence of a vapor phase fluorination catalyst and stabilizer. HCFC-1233xf is an intermediate in the production of 2,3,3,3-tetrafluoropropene (HFO-1234yf) which is a refrigerant with low global warming potential.
Owner:HONEYWELL INT INC
Process for producing 2,3,3,3-tetrafluoropropene
ActiveUS20120065437A1Increase productionPreparation by hydrogen halide split-offHalogenated hydrocarbon separation/purificationImpurity2,3,3,3-Tetrafluoropropene
The instant invention relates to a process and method for manufacturing 2,3,3,3-tetrafluoropropene by dehydrohalogenating a reactant stream of 2-chloro-1,1,1,2-tetrafluoropropane that is substantially free from impurities, particularly halogenated propanes, propenes, and propynes.
Owner:HONEYWELL INT INC
Process for producing 2,3,3,3-tetrafluoropropene
ActiveUS20100029997A1Speed up the processImpact purityPreparation by dehalogenationPreparation by hydrogen halide split-offImpurity2,3,3,3-Tetrafluoropropene
The present invention discloses a manufacturing process to produce high purity 1234yf from 245eb, which preferably includes the removal of impurities present in 245eb raw material, the dehydrofluorination of 245eb, and the removal of impurities present in final crude product. The disclosed manufacturing process allows the production of a 1234yf product with lower the levels of 1225ye and / or trifluoropropene, preferably in amounts of less than about 500, and 50 ppm, respectively.
Owner:HONEYWELL INT INC
Vinylidene fluoride / 2,3,3,3-tetrafluoropropene copolymers
This invention relates to copolymer compositions of poly(vinylidene fluoride-2,3,3,3-tetrafluoropropene) copolymers. The copolymers formed have excellent optical properties, corrosion resistance and electrical properties, with very low haze. Tetrafluoropropene monomer units may be present at from 0.5 to 60 weight percent of the copolymer.
Owner:ARKEMA INC
Hydrofluoroolefin compositions
The present invention relates to compositions containing hydrofluoroolefins and to the uses thereof as heat transfer fluids, blowing agents, solvents and aerosols. More particularly, the invention relates to compositions having: 5 to 65% by weight, preferably from 5 to 15% by weight, of 2,3,3,3-tetrafluoropropene, 5 to 70% by weight, preferably 40 to 60% by weight, of HFC-134a and 25 to 42% by weight of HFC-32.
Owner:ARKEMA FRANCE SA
Compostion based on 2,3,3,3-tetrafluoropropene
The subject of the present application is a composition comprising a lubricant based on polyol esters (POEs) or PVE and a refrigerant F comprising from 1 to 99% by weight of 2,3,3,3-tetrafluoropropene (HFO-1234A and from 1 to 99% by weight of trans-1,3,3,3-tetrafluoropropene (trans-HFO-1234ze). The subject of the present application is also the use of said composition in refrigeration, air conditioning and heat pumps.
Owner:ARKEMA FRANCE SA
Hydrofluoroolefin compositions
The present invention relates to compositions containing hydrofluoroolefins and to the uses thereof as heat transfer fluids, blowing agents, solvents and aerosols. More particularly, the invention relates to compositions having: 2 to 55% by weight, of 2,3,3,3-tetrafluoropropene, 2 to 55% by weight of HFC-152a and 30 to 55% by weight of HFC-32.
Owner:ARKEMA FRANCE SA
Hydrofluoroolefin compositions
Owner:ARKEMA FRANCE SA
Hydrofluoroolefin compositions
Owner:ARKEMA FRANCE SA
PROCESS FOR THE PREPARATION OF 2,3,3,3-TETRAFLUOROPROPENE (HFO-1234yf)
A process for the preparation of 2,3,3,3-tetrafluoropropene (HFO-1234yf). HFO-1234yf is a refrigerant with low global warming potential. A process comprises a) reacting chlorotrifluoroethylene with a methyl halide to form an intermediate product stream; and b) reacting the intermediate product stream with hydrogen fluoride to thereby produce a result comprising 2,3,3,3-tetrafluoropropene.
Owner:HONEYWELL INT INC
Azeotrope-Like Composition of 2-Chloro-3,3,3-Trifluoropropene (HCFC-1233xf) and Hydrogen Fluoride (HF)
InactiveUS20090224207A1Other chemical processesHalogenated hydrocarbon separation/purificationHydrogen fluorideHFO-1234yf
Owner:HONEYWELL INT INC
Heat-transfer compositions exhibiting improved miscibility with the lubricating oil
InactiveUS20140075969A1Reduce environmental impactLow GWPIce productionCompression machines with non-reversible cycle1,1,1,2-Tetrafluoroethane2,3,3,3-Tetrafluoropropene
The invention relates to the use of 1,1,1,2-tetrafluoroethane for increasing the miscibility of 2,3,3,3-tetrafluoropropene with a lubricating oil, and in particular with a polyalkylene glycol oil. In this regard, the invention provides heat-transfer compositions and also equipment and processes using these compositions.
Owner:ARKEMA FRANCE SA
Hydrofluoroolefin compositions
The present invention relates to compositions containing hydrofluoroolefins and to the uses thereof as heat transfer fluids, blowing agents, solvents and aerosols. More particularly, the invention relates to compositions having from 5 to 65% by weight, preferably from 5 to 15% by weight, of 2,3,3,3-tetrafluoropropene, 5 to 70% by weight, preferably 40 to 60% by weight, of HFC-134a and 25 to 42% by weight of HFC-32.
Owner:ARKEMA FRANCE SA
Heat-transfer fluids and use thereof in countercurrent heat exchangers
ActiveUS20130055739A1Good energy performance levelReduce environmental impactHeat-exchange elementsRefrigeration components1,1-Difluoroethane1,3,3,3-Tetrafluoropropene
The invention relates to a ternary composition comprising difluoromethane, 1,3,3,3-tetrafluoropropene and a hydrocarbon-derived compound containing at least two fluorine atoms and having a boiling point of between −30 and −20° C., which is selected from 1,1-difluoroethane, 1,1,1,2-tetrafluoroethane and 2,3,3,3-tetrafluoropropene. This composition is particularly suitable for use as a heat-transfer fluid in the presence of countercurrent heat exchangers.
Owner:ARKEMA FRANCE SA
Compositions comprising 2,3,3,3-tetrafluoropropene and hydrocarbons and uses thereof
InactiveUS20100123095A1Lower global warming potentialOther chemical processesTransportation and packagingAir conditioningHeat transfer fluid
The present invention relates to compositions for use in refrigeration, air-conditioning, and heat pump systems wherein the composition comprises 2,3,3,3-tetrafluoropropene (HFC-1234yf) and at least one hydrocarbon. The compositions of the present invention are useful in processes for producing cooling or heat, as heat transfer fluids, foam blowing agents, and aerosol propellants.
Owner:THE CHEMOURS CO FC LLC
Heat-transfer fluids and use thereof in countercurrent heat exchangers
InactiveUS20130055733A1Reduced GWPImprove performanceCompression machines with non-reversible cycleCompression machines with cascade operationBoiling point1,3,3,3-Tetrafluoropropene
The invention relates to a ternary composition comprising difluoromethane, 3,3,3-trifluoropropene and a hydrocarbon-derived compound containing at least two fluorine atoms and having a boiling point of between −30 and −18° C., which is selected from 1,1-difluoroethane, 2,3,3,3-tetrafluoropropene and 1,3,3,3-tetrafluoropropene. This composition is particularly suitable for use as a heat-transfer fund in the presence of countercurrent heat exchangers.
Owner:ARKEMA FRANCE SA
REFRIGERANT COMPOSITION COMPRISING DIFLUOROMETHANE (HFC32), PENTAFLUOROETHANE (HFC125) AND 2, 3, 3, 3-TETRAFLUOROPROPENE (HFO1234yf)
InactiveUS20110108756A1Same and improved cycle performanceEase of evaluationHeat-exchange elementsDifluoromethane2,3,3,3-Tetrafluoropropene
Owner:DAIKIN IND LTD
Use of ternary compositions
ActiveUS8808569B2Compression machines with non-reversible cycleHeat-exchange elementsMedicineRefrigeration
The invention relates to the use of compositions essentially containing 2,3,3,3-tetrafluoropropene, HFC-134a and HFC-32 in compression refrigeration systems comprising exchangers operation in counterflow mode.
Owner:ARKEMA FRANCE SA
Heat transfer compositions having improved miscibility with lubricating oil
ActiveUS20150027146A1Low GWPImprove energy performanceCompression machines with non-reversible cycleHeat-exchange elementsPolyolesterPolyol
A composition including 2,3,3,3-tetrafluoropropene and a lubricating oil including a polyalkylene glycol and a polyol ester, the polyol ester content in the lubricating oil being less than or equal to 25%. A method of lubricating a vapor compression circuit, the method including using a mixture including a polyalkylene glycol and a polyol ester as lubricating oil in the vapor compression circuit, in combination with a heat transfer fluid comprising 2,3,3,3-tetrafluoropropene, the content of polyol ester in the lubricating oil being less than or equal to 25%. Further, the use of said composition in methods for heating or cooling.
Owner:ARKEMA FRANCE SA
Method for separating halocarbons
ActiveUS20100048961A1Preparation by hydrogen halide split-offPreparation by halogen halide additionHalocarbonHFO-1234yf
Owner:HONEYWELL INT INC
AZEOTROPE-LIKE COMPOSITIONS OF 2-CHLORO-3,3,3-TRIFLUOROPROPENE (HCFC-1233xf) AND 2-CHLORO-1,1,1,2-TETRAFLUOROPROPANE (HCFC-244bb)
Owner:HONEYWELL INT INC
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