Product
Patsnap Eureka
For R&D, Patsnap Eureka makes reading and utilizing patents & technical documents easy.
Patsnap Eureka AIR
Designed for self-driven R&D workflows. Generate viable solutions, solve complex R&D challenges, empower your innovation with AI.
Patsnap Eureka Materials
Designed for material experts only. Revolutionize your material R&D, from search, analyze, to developing new materials.
Feature
TechResearch
Generate reliable direction feasibility study reports for your R&D in just a few steps.
TechSeek
Discover and master advanced knowledge NOW. Basics, ideas, possibilities, all at once.
TechMind
As an expert in R&D Theories, TechMind can generates customized viable solutions instantly.
TechRisk
Analyze your overall solution with one click, know your potential R&D risks in advance.
TechMonitor
Get weekly tech updates, stay abreast of the latest tech innovations and key insights.
Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
1496results about "Halogenated hydrocarbon separation/purification" patented technology
Efficacy Topic
Property
Owner
Technical Advancement
Application Domain
Technology Topic
Technology Field Word
Patent Country/Region
Patent Type
Patent Status
Application Year
Inventor
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
Processes for production and purification of hydrofluoroolefins
ActiveUS20060106263A1High selectivityPreparation by hydrogen halide split-offHydrogen fluorideHydrogen fluoridePurification methods
Owner:THE CHEMOURS CO FC LLC
Process for producing fluoropropenes
InactiveUS7230146B2Simplifies isolationPreparation by hydrogen halide split-offPreparation by halogen halide additionHalogenHydrogen
Dehydrohalogenation processes for the preparation of fluoropropenes from corresponding halopropanes, in which the fluoropropenes have the formula CF3CY═CXNHP, wherein X and Y are independently hydrogen or a halogen selected from fluorine, chlorine, bromine and iodine; and N and P are independently integers equal to 0, 1 or 2, provided that (N+P)=2.
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
Stabilized Iodocarbon Compositions
InactiveUS20080157022A1Reduce environmental damageLow propertyHalogenated hydrocarbon separation/purificationHeat-exchange elementsStabilizing AgentsSolvent composition
Disclosed are compositions comprising at least one iodocarbon compound and preferably at least one stabilization agent comprising a diene-based compound. These compositions are generally useful as refrigerants for heating and cooling, as blowing agents, as aerosol propellants, as solvent composition, and as fire extinguishing and suppressing agents.
Owner:HONEYWELL INT INC
Process for the manufacture of 1, 1, 1, 3, 3-pentachloropropane
InactiveUS6313360B1Improve degradation rateShorten the timeOrganic chemistry methodsHalogenated hydrocarbon separation/purificationChlorideOrganic phosphates
A process is provided for the production of 1,1,1,3,3-pentachloropropane. The process comprises: (a) producing a product mixture in a reactor by reacting carbon tetrachloride and vinyl chloride in the presence of a catalyst mixture comprising organophosphate solvent, iron metal and ferric chloride under conditions sufficient to produce 1,1,1,3,3-pentachloropropane; (b) subjecting the 1,1,1,3,3-pentachloropropane containing product mixture from step (a) to evaporation such that a fraction enriched in 1,1,1,3,3-pentachloropropane is separated from the product mixture and a bottoms fraction results which comprises the iron metal / ferric chloride catalyst components and heavy end by-products; and (c) recycling at least a portion of the bottoms fraction from step (b) to the reactor.
Owner:OCCIDENTAL CHEM CORP
Process for manufacture of fluorinated olefins
A process for the production of fluorinated olefins, preferably fluorinated propenes, by contacting a feed stream containing a fluorinated olefin and hydrogen with a first amount of catalyst to produce the hydrofluorocarbon, wherein a first exit stream contains unreacted fluorinated olefin and hydrogen; contacting the first exit stream with a second amount of catalyst to produce a hydrofluorocarbon, wherein the second amount of catalyst is preferably greater than the first amount of catalyst; and contacting the hydrofluorocarbon with a catalyst for dehydrohalogenation to produce a product stream of fluorinated olefin.
Owner:HONEYWELL INT 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 FOR THE PRODUCTION OF HFO TRANS-1234ze FROM HFC-245fa
ActiveUS20080051611A1Preparation by hydrogen halide split-offPreparation by halogen halide additionHydrogen fluoride1,3,3,3-Tetrafluoropropene
This invention relates a process for the manufacture of the HFO trans-1,3,3,3-tetrafluoropropene (HFO trans-1234ze). More particularly, the invention pertains to a process for the manufacture of the HFO trans-1234ze by first dehydrofluorinating 1,1,1,3,3-pentafluoropropane to thereby produce a mixture of cis-1,3,3,3-tetrafluoropropene, trans-1,3,3,3-tetrafluoropropene and hydrogen fluoride. Then optionally recovering hydrogen fluoride and then recovering trans-1,3,3,3-tetrafluoropropene.
Owner:HONEYWELL INT INC
Process for manufacture of fluorinated olefins
A process for the production of fluorinated olefins, preferably fluorinated propenes, by contacting a feed stream containing a fluorinated olefin and hydrogen with a first amount of catalyst to produce the hydrofluorocarbon, wherein a first exit stream contains unreacted fluorinated olefin and hydrogen; contacting the first exit stream with a second amount of catalyst to produce a hydrofluorocarbon, wherein the second amount of catalyst is preferably greater than the first amount of catalyst; and contacting the hydrofluorocarbon with a catalyst for dehydrohalogenation to produce a product stream of fluorinated olefin.
Owner:HONEYWELL INT INC
Process for preparing halogenated alkanes
InactiveUS7094936B1High selectivityBig advantagePreparation by hydrogen halide split-offPreparation by halogen replacementAlkaneLewis acid catalysis
Methods and materials are provided for the production and purification of halogenated compounds and intermediates in the production of 1,1,1,3,3-pentafluoropropane. In a preferred embodiment, the process steps include: (1) reacting carbon tetrachloride with vinyl chloride to produce 1,1,1,3,3-pentachloropropane; (2) dehydrochlorinating the 1,1,1,3,3-pentachloropropane with a Lewis acid catalyst to produce 1,1,3,3-tetrachloropropene; (3) fluorinating the 1,1,3,3-tetrachloropropene to produce 1-chloro-3,3,3-trifluoropropene; (4) fluorinating the 1-chloro-3,3,3-trifluoropropene to produce a product mixture containing 1,1,1,3,3-pentafluoropropane; and (5) separating 1,1,1,3,3-pentafluoropropane from by-products.
Owner:EI DU PONT DE NEMOURS & CO
Process for removing and recovering halocarbons from effluent process streams
A process for recovery of fluorocompound gas from an effluent gas stream containing the fluorocompound gas and other gas components, in which at least one of the other gas components is removed, e.g., by oxidation or contacting of the effluent stream with a dry material such as an adsorbent or scrubber medium, to yield a first effluent gas mixture containing the fluorocompound gas. The fluorocompound gas is removed from the first effluent gas mixture and recovered as a concentrated fluorocompound gas, by a process such as cryogenic processing, membrane separation, and / or adsorption.
Owner:ADVANCED TECH MATERIALS INC
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
Continuous low-temperature process to produce trans-1-chloro-3,3,3-trifluoropropene
ActiveUS20120059199A1Slow reaction rateYield maximizationChlorine/hydrogen-chloridePreparation by hydrogen halide split-offIsomerizationUnit operation
Disclosed is process for the production of (E) 1-chloro-3,3,3-trifluoropropene (HCFO-1233zd(E)) by conducting a continuous reaction without the use of a catalyst. Also disclosed is an integrated system for producing hydrofluoro olefins, particularly 1233zd(E). The manufacturing process includes six major unit operations: (1) a fluorination reaction of HCC-240fa (in continuous or semi-batch mode) using HF with simultaneous removal of by-product HCl and the product 1233zd(E); (2) recycle of unreacted HCC-240fa and HF together with under-fluorinated by-products back to (1); (3) separation and purification of by-product HCl; (4) separation of excess HF back to (1); (5) purification of final product, 1233zd(E); and (6) isomerization of by-product 1233zd(Z) to 1233zd(E) to maximize the process yield.
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
Azeotrope compositions comprising E-1,3,3,3-tetrafluoropropene and hydrogen fluoride and uses thereof
ActiveUS20070100173A1Preparation by hydrogen halide split-offHydrogen fluorideHydrogen fluoride1,3,3,3-Tetrafluoropropene
Disclosed herein are azeotrope and near-azeotrope compositions comprising E-1,3,3,3-tetrafluoropropene and hydrogen fluoride. These azeotrope and near-azeotrope compositions are useful in processes to produce E-1,3,3,3-tetrafluoropropene and in processes to purify E-1,3,3,3-tetrafluoropropene from mixtures of E-1,3,3,3-tetrafluoropropene with 1,1,1,3,3-pentafluoropropane and / or with hydrogen fluoride.
Owner:THE CHEMOURS CO FC LLC
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
Manufacturing method for 1,1,1,3,3-pentafluoropropane
InactiveUS6060628AImprove economyImprove efficiencyPreparation by dehalogenationOrganic chemistry methodsHydrogenHydrogen chloride
PCT No. PCT / JP96 / 00273 Sec. 371 Date Aug. 26, 1997 Sec. 102(e) Date Aug. 26, 1997 PCT Filed Feb. 8, 1996 PCT Pub. No. WO96 / 26914 PCT Pub. Date Jun. 9, 1996A manufacturing method for 1,1,1,3,3-pentafluoropropane in which the method is composed of: step A wherein 2,3-dichloro-1,1,1,3,3-pentafluoropropane is reduced with hydrogen under the presence of hydrogenation catalyst in gaseous phase; step B wherein all of the products of the said step A are introduced into a cooler condenser, so that either a component of hydrogen and hydrogen chloride as non-condensation component and another compoment of 1,1,1,3,3-pentafluoropropane as condensation components or a component of hydrogen as non-condensation component and another component of hydrogen chloride and 1,1,1,3,3-pentafluoropropane as condensation component are obtained; step C wherein hydrogen is separated from the non-condensation component of the said step B, and it is recycled to the said step A; and step D wherein 1,1,1,3,3-pentafluoropropane is separated from the condensation component of the said step B. The producing method based on a manufacturing process of 1,1,1,3,3-pentafluoropropane can be provided with good efficiency and economy in industrial scales.
Owner:DAIKIN IND LTD
Integrated HFC trans-1234ze manufacture process
ActiveUS7485760B2Preparation by hydrogen halide split-offPreparation by halogen replacementHydrogen fluoride1,3,3,3-Tetrafluoropropene
An integrated process for the manufacture of HFO trans-1,3,3,3-tetrafluoropropene (HFO trans-1234ze) by first catalytically dehydrofluorinating 1,1,1,3,3-pentafluoropropane to thereby produce a mixture of cis-1,3,3,3-tetrafluoropropene, trans-1,3,3,3-tetrafluoropropene and hydrogen fluoride. Then optionally recovering hydrogen fluoride, catalytically isomerizing cis-1234ze into trans-1234ze, and recovering trans-1,3,3,3-tetrafluoropropene.
Owner:HONEYWELL INT INC
Preparation of catalyst and use for high yield conversion of methane to ethylene
InactiveUS7250543B2Maintain activityAlkaline earth titanatesHydrocarbon by hydrocarbon condensationAlkaline earth metalSlurry
A perovskite catalyst is prepared using a ceramic sol-sol methodology comprising preparing slurry in water of an alkaline earth metal salt, a powdered metal salt and a powdered transition metal oxide, adding a polymeric binder to form a paste, drying and comminuting the paste into a powder and heating the powder with a temperature profile to calcination temperatures. In one embodiment the slurry is formed of titanium oxide with barium carbonate and tin chloride in deionized water, and more specifically by a mixture according to Ba (1-0.05x)+TiO2+SnCl2(0.05x) where x is in moles. The perovskite catalyst is preferably used in a process for oxidative coupling of methane. Catalyst performance is enhanced through the addition of halides to the feed gas in the reaction.
Owner:HRD CORP
Blends of quinone alkide and nitroxyl compounds and polymerization inhibitors
InactiveUS7045647B2Improve performanceReduce the numberOrganic compounds purification/separation/stabilisationOrganic compound preparationQuinonePolymer science
Disclosed herein is a method for inhibiting the premature polymerization of ethylenically unsaturated monomers comprising adding to said monomers an effective amount of: A) at least one nitroxyl compound, and B) at least one quinone alkide compound having an electron-withdrawing group at the 7-position. Additionally, a composition is disclosed that comprises: A) at least one nitroxyl compound, and B) at least one quinone alkide compound having an electron-withdrawing group at the 7-position.
Owner:DEUT BANK AG NEW YORK BRANCH +1
Azeotrope compositions comprising E-1,3,3,3-tetrafluoropropene and hydrogen fluoride and uses thereof
ActiveUS7423188B2Preparation by hydrogen halide split-offHydrogen fluorideHydrogen fluorideMedicinal chemistry
Disclosed herein are azeotrope and near-azeotrope compositions comprising E-1,3,3,3-tetrafluoropropene and hydrogen fluoride. These azeotrope and near-azeotrope compositions are useful in processes to produce E-1,3,3,3-tetrafluoropropene and in processes to purify E-1,3,3,3-tetrafluoropropene from mixtures of E-1,3,3,3-tetrafluoropropene with 1,1,1,3,3-pentafluoropropane and / or with hydrogen fluoride.
Owner:THE CHEMOURS CO FC LLC
Noncatalytic manufacture of 1,1,3,3,3-pentafluoropropene from 1,1,1,3,3,3-hexafluoropropane
InactiveUS20060094911A1High selectivityPreparation by hydrogen halide split-offHydrogen fluorideHydrogen fluorideTube reactor
1,1,3,3,3-Pentafluoropropene (CF3CH═CF2, HFC-1225zc) can be produced by pyrolyzing 1,1,1,3,3,3-hexafluoropropane (CF3CH2CF3, HFC-236fa) in the absence of dehydrofluorination catalyst at temperatures of from about 700° C. to about 1000° C. and total pressures of about atmosphere pressure in an empty, tubular reactor, the interior surfaces of which comprise materials of construction resistant to hydrogen fluoride.
Owner:EI DU PONT DE NEMOURS & CO
Process for the manufacture of fluorinated olefins
ActiveUS20090234165A1Good economic advantagePreparation by dehalogenationSequential/parallel process reactionsHexafluoropropylenePentafluoropropane
A method for producing 1,1,1,2-tetrafluoropropene and / or 1,1,1,2,3 -pentafluoropropene using a single set of four unit operations, the unit operations being (1) hydrogenation of a starting material comprising hexafluoropropene and optionally recycled 1,1,1,2,3-pentafluoropropene; (2) separation of the desired intermediate hydrofluoroalkane, such as 1,1,1,2,3,3-hexafluoropropane and / or 1,1,1,2,3-pentafluoropropane; (3) dehydrofluorination of the intermediate hydrofluoroalkane to produce the desired 1,1,1,2-tetrafluoropropene and / or 1,1,1,2,3-pentafluoropropene, followed by another separation to isolate the desired product and, optionally, recycle of the 1,1,1,2,3-pentafluoropropene.
Owner:HONEYWELL INT INC
Integrated HFC trans-1234ZE manufacture process
ActiveUS20080051610A1Preparation by hydrogen halide split-offPreparation by halogen replacementHydrogen fluoride1,3,3,3-Tetrafluoropropene
An integrated process for the manufacture of HFO trans-1,3,3,3-tetrafluoropropene (HFO trans-1234ze) by first catalytically dehydrofluorinating 1,1,1,3,3-pentafluoropropane to thereby produce a mixture of cis-1,3,3,3-tetrafluoropropene, trans-1,3,3,3-tetrafluoropropene and hydrogen fluoride. Then optionally recovering hydrogen fluoride, catalytically isomerizing cis-1234ze into trans-1234ze, and recovering trans-1,3,3,3-tetrafluoropropene.
Owner:HONEYWELL INT INC
Utilizing ionic liquids for hydrofluorocarbon separation
InactiveUS20070131535A1Organic compounds purification/separation/stabilisationGroup 5/15 element organic compoundsPhysical chemistryOrganic chemistry
The present invention relates to a process for separating close-boiling and azeotropic components of mixtures, wherein said mixtures comprise at least one hydrofluorocarbon compound, using at least one ionic liquid.
Owner:THE CHEMOURS CO FC LLC
Stabilized hydrochlorofluoroolefins and hydrofluoroolefins
ActiveUS20100181524A1Low ozone depletionLower global warming potentialOther chemical processesNon-surface-active detergent compositionsScavengerOzone depletion potential
Disclosed is a combination of hydrofluoroolefins and / or hydrochlorofluoroolefins with stabilizers wherein the stabilizers minimize the degradation of the hydrofluoroolefins and hydrochlorofluoroolefins during storage, handling and use yet allow for atmospheric degradation. The combinations exhibit low or zero ozone depletion potential and lower global warming potential making them of interest as replacements for chlorofluorocarbons and hydrfluorocarbons. The combinations of the present invention comprise hydrofluoroolefins and / or hydrochlorofluoroolefins in combination with a stabilizer or stabilizers selected from free radical scavengers, acid scavengers, oxygen scavengers, polymerization inhibitors and combinations thereof.
Owner:ARKEMA INC
Azeotropic composition, comprising 1, 1, 1, 3,3-pentafluoropropane and 1, 1, 1-trifluoro-3-chloro-2-propene, method of separation and purification of the same, and process for producing 1, 1, 1,3,3-pentafloropropane and 1, 1, 1-trifluoro-3-chloro-2-propene
InactiveUS7183448B2Delayed recoveryIncrease production costPreparation by hydrogen halide split-offOther chemical processesDistillationPentafluoropropane
A mixture comprising at least 1,1,1,3,3-pentafluoropropane and 1,1,1-trifluoro-3-chloro-2-propene is subjected to a distillation operation, and thereby, a distillate comprising an azeotropic composition consisting substantially of 1,1,1,3,3-pentafluoropropane and 1,1,1-trifluoro-3-chloro-2-propene is obtained and a bottom product comprising 1,1,1,3,3-pentafluoropropane or 1,1,1-trifluoro-3-chloro-2-propene which each is separated and purified.
Owner:DAIKIN IND LTD
Process for the manufacture of 1,1,1,3,3-pentachloropropane
ActiveUS20080091053A1High yieldHigh selectivityPreparation by halogen halide additionHalogenated hydrocarbon separation/purificationAlkeneHaloalkane
A process for the manufacture of haloalkanes, or more particularly to a process for the manufacture of 1,1,1,3,3-pentachloropropane (HCC-240fa) and / or and / or 1,1,1,3-tetrachloropropane (HCC-250fb). The process includes (a) mixing a catalyst, co-catalyst and a haloalkane starting material under conditions suitable to produce a homogeneous mixture; (b) reacting the homogeneous mixture with a haloalkene and / or alkene starting material under conditions suitable to produce a haloalkane product stream; and (c) recovering a haloalkane product from said product stream.
Owner:HONEYWELL INT INC
Who we serve
- R&D Engineer
- R&D Manager
- IP Professional
Why Patsnap Eureka
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com