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209 results about "Hydrofluoroolefin" patented technology
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Hydrofluoroolefins (HFOs) are unsaturated organic compounds composed of hydrogen, fluorine and carbon. These organofluorine compound are of interest as refrigerants. Unlike traditional hydrofluorocarbons (HFCs) and chlorofluorocarbons (CFCs), which are saturated, HFOs are olefins, otherwise known as alkenes.
Processes for production and purification of hydrofluoroolefins
ActiveUS20060106263A1High selectivityPreparation by hydrogen halide split-offHydrogen fluorideHydrogen fluoridePurification methods
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
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
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
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: 10 to 55% by weight, of 2,3,3,3-tetrafluoropropene, 5 to 50% by weight of HFC-152a and 30 to 55% by weight of HFC-32.
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 compositions with a hydrofluoroalkene, an iodocarbon and additives
The invention pertains to heat transfer compositions, particularly to automobile refrigerants comprising a hydrofluoroalkene, an iodocarbon, a polyol ester and at least one compound comprising trifluoromethane, methyl iodide, heptafluorobutane or propene.
Owner:HONEYWELL INT 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 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
Process for production of azeotrope compositions comprising hydrofluoroolefin and hydrogen fluoride and uses of said azeotrope compositions in separation processes
ActiveUS7897823B2High selectivityPreparation by hydrogen halide split-offPreparation by halogen halide additionHydrogen fluorideHydrogen
Disclosed herein is a process to produce an azeotrope composition comprising a hydrofluoroolefin and hydrogen fluoride, said process comprising, dehydrofluorinating a hydrofluorocarbon containing at least one hydrogen and at least one fluorine on adjacent carbons, thereby forming a mixture comprising said hydrofluoroolefin, unreacted hydrofluorocarbon and hydrogen fluoride, and distilling the mixture to produce a distillate composition comprising an azeotrope composition containing said hydrofluoroolefin and hydrogen fluoride and a column bottoms composition comprising said hydrofluorocarbon essentially free of hydrogen fluoride. Also disclosed herein are processes for separation of hydrofluoroolefins from hydrofluorocarbons and from hydrogen fluoride.
Owner:THE CHEMOURS CO FC LLC
Foam-forming compositions containing mixtures of 2-chloro-3,3,3-trifluoropropene and at least one hydrofluoroolefin and their uses in the preparation of polyisocyanate-based foams
Foam-forming compositions are disclosed which contain a mixture of 2-chloro-3,3,3-trifluoropropene and at least one hydrofluoroolefin. Also disclosed is a closed-cell polyurethane or polyisocyanurate polymer foam prepared from reaction of an effective amount of the foam-forming composition with a suitable polyisocyanate. Also disclosed is a process for producing a closed-cell polyurethane or polyisocyanurate polymer foam by reacting an effective amount of the foam-forming composition with a suitable polyisocyanate.
Owner:EI DU PONT DE NEMOURS & CO
Sesquiterpene stabilized compositions
ActiveUS8133407B2Good chemical stabilityDelayed polymerizationOrganic detergent compounding agentsHalogenated hydrocarbon separation/purificationSesquiterpeneFarnesene
Provided is a composition comprising (a) at least one halogenated compound selected from the group consisting of C3-C5 hydrofluoroolefin, CF3I, and combinations thereof, and (b) an effective stabilizing amount of a sesquiterpene selected from the group consisting of farnesol, farnesene, and mixtures thereof.
Owner:HONEYWELL INT INC
Absorption refrigeration cycles using a lgwp refrigerant
ActiveUS20090272134A1Improve heat transfer performanceEasy to separateEnergy efficient heating/coolingCompression machines with non-reversible cyclePolyolesterEngineering
An absorptive refrigeration method that employs a refrigerant comprising one or more hydrofluoroolefin or hydrochlorofluoroolefin refrigerants, and an oil selected from the group consisting of a polyalkyene glycol oil, a poly alpha olefin oil, a mineral oil and a polyolester oil.
Owner:HONEYWELL INT INC
Coproduction of hydrofluoroolefins
InactiveUS7687670B2Preparation by hydrogen halide split-offHalogenated hydrocarbon separation/purificationCeriumCobalt
Disclosed is a process for the co-manufacture of the hydrofluoroolefins HFC-1225ye and HFC-1234yf. The process comprises contacting a blend of 1,1,1,2,3,3-hexafluoropropane and 1,1,1,2,3-pentafluoropropane at a temperature of from about 200° C. to about 500° C. with a catalyst, optionally in the presence of an inert gas. The catalyst includes, but is not limited to, aluminum fluoride; fluorided alumina; metals on aluminum fluoride; metals on fluorided alumina; oxides, fluorides, and oxyfluorides of magnesium, zinc and mixtures of magnesium and zinc and / or aluminum; lanthanum oxide and fluorided lanthanum oxide; chromium oxides, fluorided chromium oxides, and cubic chromium trifluoride; carbon, acid-washed carbon, activated carbon, three dimensional matrix carbonaceous materials; and metal compounds supported on carbon. The metal compounds are oxides, fluorides, and oxyfluorides of at least one metal selected from the group consisting of sodium, potassium, rubidium, cesium, yttrium, lanthanum, cerium, praseodymium, neodymium, samarium, chromium, iron, cobalt, rhodium, nickel, copper, zinc, and mixtures thereof. The product hydrofluoroolefins are separated from unreacted hydrofluorocarbons and hydrogen fluoride. In another embodiment, the unreacted hydrofluorocarbons optionally may be recirculated back through the process.
Owner:EI DU PONT DE NEMOURS & CO
Process for the purification of hydrofluoroolefins
ActiveUS20100193347A1High purityHigh yieldSolvent extractionPreparation by halogen replacementHFO-1234yfHydrofluoroolefin
Processes for the preparation and purification of hydrofluoroolefins such as tetrafluorinated propenes. A process is provided for separating a first hydrofluoroolefin from a second hydrofluoroolefin by a) providing a mixture comprising a first hydrofluoroolefin and a second hydrofluoroolefin, which first hydrofluoroolefin is preferentially more reactive with an amine than the second hydrofluoroolefin; b) adding a sufficient amount of an amine to the mixture to form a combination comprising the second hydrofluoroolefin and a reaction product of the first hydrofluoroolefin and the amine; and then c) separating the reaction product from the combination. This is particularly useful for removing 1,2,3,3,3-pentafluoropropene (HFO-1225ye) impurities from the hydrofluoroolefin 2,3,3,3-tetrafluoropropene (HFO-1234yf). HFO-1234yf is a refrigerant with low global warming potential.
Owner:HONEYWELL INT INC
Heat transfer composition of oxygenated lubricant with hydrofluoroolefin and hydrochlorofluoroolefin refrigerants
The present invention relates to heat transfer compositions comprising an oxygenaged lubricant comprising polyvinyl ether oil and a refrigerant comprising hydrofluoroolefins and / or hydrochlorofluoroolefins. The heat transfer compositions of the present invention have the benefit of exhibiting superior thermal stability and are useful in such applications as refrigeration, air conditioning, and heat transfer systems.
Owner:ARKEMA INC
Use of low gwp refrigerants comprising cf3i with stable lubricants
InactiveUS20080111100A1Reduce chain lengthImprove bindingAir-treating devicesTeeth fillingHydrogen atomHydrogen
The invention pertains to heat transfer compositions, particularly to automobile refrigerants comprising a hydrofluoroalkene, an iodocarbon, and at least one lubricant having hydrogen atoms and carbon atoms, wherein no more than 17% of the total number of hydrogen atoms which are attached to a carbon atom are tertiary hydrogen atoms.
Owner:HONEYWELL INT INC
Compositions of hydrochlorofluoroolefins
The present invention relates to solvent / cleaner and heat transfer fluid compositions comprising at least one hydrochlorofluoroolefin (HCFO), 1-chloro-3, 3,3-trifluoropropene (HCFO-1233zd), particularly the trans- isomer. The HCFO of the present invention can be used in combination with co-agents including, hydrofluorocarbons (HFCs), hydrofluoroolefins (HFOs), hydrocarbons, ethers including hydrofluoroethers (HFEs), esters, ketones, alcohols, 1,2-transdichloroethylene and mixtures thereof.
Owner:ARKEMA FRANCE SA
Fluorinated chrome base fluorination catalyst and application thereof
ActiveCN102513136AExtended service lifeHigh catalytic activityPreparation by dehalogenationPreparation by hydrogen halide split-offHydrogen fluorideHydrogen
The invention discloses a fluorinated chrome base fluorination catalyst and application thereof. The weight percentage composition of a precursor of the catalyst is that chromic oxide 80.0%-99.0% and rare-earth metal oxide 1.0%-20.0%, wherein the rare-earth metal oxide is selected from one or more of CeO2, La2O3, Nd2O3, Y2O3, ZrO2 and Yb2O3. The precursor of the catalyst is roasted at 300 DEG C-400 DEG C, and the fluorinated chrome base fluorination catalyst is obtained by fluorating the precursor of the catalyst by utilizing hydrogen fluoride gas at 350-450 centidegree. The obtained fluorination catalyst has the advantages of being good in carbon deposit resistance performance and activation and the like. The catalyst is mainly used for preparation of hydrofluoroolefin and hydrogen fluorine chlorine olefins.
Owner:XIAN MODERN CHEM RES INST
Compressor and refrigeration cycle device using same
ActiveUS20130098101A1Slow down the rate of deteriorationSecuring long-term reliabilityCompressorCompression machines with non-reversible cycleDecompositionDouble bond
According to a compressor and a refrigeration cycle device using same of the present invention, a refrigerant and refrigeration oil 103 are sealed in an container 101, the refrigerant is a hydrofluoroolefin having double bond of carbon in its composition or a mixture of hydrofluoroolefin as a base component and hydrofluorocarbon having no double bond, and at least one of benzotriazole, dialkyl dithiophosphoric acid zinc, dialkyl selenium, metal phenate, and organic nitrogen compound is included in the refrigeration oil 103, and it is an object to suppress the decomposition and polymerization of refrigeration oil and a refrigerant, and to secure reliability of the compressor and the refrigeration cycle device.
Owner:PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
Absorption refrigeration cycles using a LGWP refrigerant
ActiveUS9994751B2Increase pressureLess energyCompression machines with non-reversible cycleEnergy efficient heating/coolingPolyolesterEngineering
Owner:HONEYWELL INT INC
High-performance refrigeration lubricating oil composition
InactiveCN105331422AIncrease viscositySufficient lubrication protectionBase-materialsPolyolPentaerythritol
The invention provides a refrigeration lubricating oil composition. The composition comprises polyol ester products obtained after reaction of tripentaerythritol, dipentaerythritol, pentaerythritol or a mixture of tripentaerythritol, dipentaerythritol and pentaerythritol with one or more straight-chain / branched-chain saturated / nonsaturated C4-20 aliphatic acid; or the composition comprises a mixture of polyol ester products obtained after reaction of tripentaerythritol with one or more straight-chain / branched-chain saturated / nonsaturated C4-20 aliphatic acid, polyol ester products obtained after reaction of dipentaerythritol with one or more straight-chain / branched-chain saturated / nonsaturated C4-20 aliphatic acid or polyol ester products obtained after reaction of pentaerythritol with one or more straight-chain / branched-chain saturated / nonsaturated C4-20 aliphatic acid. The polyol ester products have the following properties: intermiscible temperature of the polyol ester products and a refrigerant (such as a hydrofluorocarbon refrigerant and a hydrofluoroolefin refrigerant) is lower than -25 DEG C (with 20% of polyol esters in the refrigerant); the dynamic viscosity of the polyol ester products at a temperature of 40 DEG C is in a range of 46 to 460 cSt; and the polyol ester products show high operation viscosity in testing under related standard compressor conditions.
Owner:PATECH FINE CHEM
Refrigerating cycle device and air conditioner
InactiveUS20110079040A1Inhibit deteriorationSave energyCompression machines with non-reversible cycleRefrigeration componentsNitrogenEngineering
A compressor 1 for compressing a refrigerant containing a hydrofluoroolefin refrigerant, a condenser 2 for condensing the refrigerant by heat exchange, a throttle device 4 for decompressing the condensed refrigerant, an evaporator 5 for evaporating the refrigerant by heat exchange between the decompressed refrigerant and air, and air adsorbing means 3 for adsorbing oxygen and nitrogen are connected by piping so as to configure a refrigerant circuit through which the refrigerant containing the hydrofluoroolefin refrigerant is circulated.
Owner:MITSUBISHI ELECTRIC CORP
Compressor and refrigerating cycle apparatus using the same
InactiveUS20130167580A1Easy to useAvoid it happening againRotary/oscillating piston combinations for elastic fluidsEngine sealsSludgeDecomposition
In a compressor, a single refrigerant of hydrofluoroolefin having a double bond of carbon or a mixed refrigerant containing hydrofluoroolefin and hydrofluorocarbon having no double bond of carbon is used, and moreover a refrigerating machine oil containing an additive for suppressing deterioration of the refrigerating machine oil and an antiwear agent is used, the compressor including a sliding portion which is exposed to the mixed refrigerant and the refrigerating machine oil and which has a hardness of 47-55 HRC. Thus, decomposition and polymerization of the refrigerant and the refrigerating machine oil can be inhibited (i.e., occurrence of sludge can be inhibited), and antiwear property of sliding portions, e.g. vane and piston, of the compressor can be maintained. As a result, reliability of the compressor and the refrigerating cycle apparatus using the compressor can be ensured.
Owner:PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
Azeotropes of methyl chloride with fluorocarbons
InactiveUS20130158218A1Other chemical processesOrganic-compounds/hydrides/coordination-complexes catalysts1,3,3,3-TetrafluoropropeneDiluent
Azeotropic or azeotrope-like compositions of the present technology include methyl chloride and at least one hydrofluorocarbon or hydrofluoro-olefin. In some examples, the at least one hydrofluorocarbon or hydrofluoro-olefin can be selected from the group consisting of 1,1,1,2-tetrafluoroethane and 1,3,3,3-tetrafluoropropene. The azeotropic or azeotrope-like compositions can be used as solvents or diluents in polymerization processes, including slurry polymerization processes.
Owner:HONEYWELL INT INC
Refrigeration compressor lubricant
ActiveUS20130200295A1Good compatibilityExcellent indexHeat-exchange elementsAdditivesRefrigeration compressorDichlorodifluoromethane
Owner:COPELAND LP
Blowing agent composition of hydrochlorofluoroolefin and hydrofluoroolefin
InactiveUS20100056657A1Quality improvementLow densityOther chemical processesTransportation and packagingFoaming agentMedicine
A blowing agent for thermosetting foams is disclosed. The blowing agent is a hydrofluoroolefin (HCFO), preferably HFCO-1234ze in combination with a hydrochlorofluoroolefin (HCFO) preferably one selected from HCFO-1233zd, HCFO-1223, HCFO-1233xf and mixtures thereof. The blowing agent is effective as a blowing agent in the manufacture of thermosetting foams.
Owner:ARKEMA INC
Process for producing 2,3,3,3-tetrafluoropropene
InactiveUS20140256995A1Long catalyst lifeImprove reaction efficiencyPreparation by halogen replacementHFO-1234yfHydrofluoroolefin
The present invention relates, in part, to the discovery that the presence of moisture in 1,1,2,3-tetrachloropropene (HCO-1230xa) results in catalyst deactivation and accelerated corrosion in the reactor during the fluorination of HCO-1230xa to 2-chloro-3,3,3-trifluoropropene. By substantially removing the moisture, it is shown that the catalyst life is extended and results in improved operation efficiency of the fluorination reaction. Such steps similarly result in an overall improvement in the production of certain hydrofluoroolefins, particularly 2,3,3,3-tetrafluoropropene (HFO-1234yf).
Owner:THE CHEMOURS CO FC LLC +1
Methods for purifying and stabilizing hydrofluoroolefins and hydrochlorofluoroolefins
Owner:ARKEMA INC
Refrigeration cycle device and heat cycle system
InactiveUS20180320942A1Operational securityAvoid it happening againMechanical apparatusCompression machines with non-reversible cycleWorking fluidDesiccant
A refrigeration cycle apparatus includes a compressor, a condenser, a pressure reducing mechanism and an evaporator and use a working fluid containing a hydrofluoroolefin (HFO). The compressor, condenser, pressure reducing mechanism and evaporator are connected with a pipeline to form a refrigeration cycle. A deoxidizing portion where the working fluid is brought into contact with a desiccant or a deoxidizer is provided at any place within the refrigeration cycle.
Owner:ASAHI GLASS CO LTD
Scroll compressor
ActiveUS20130108496A1Promote decompositionImprove efficiencyRotary/oscillating piston combinations for elastic fluidsEngine of arcuate-engagement typeDecompositionOzone depletion potential
Owner:PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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