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WO/2008/030443A1 |
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.
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WO/2008/030441A1 |
The present disclosure relates to a new and efficient manufacturing process for the production of HFC-1225ye. The process involves contacting at least one hexafluoropropane selected from the group consisting of 1,1, 1,2,2, 3-hexafluoropr...
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WO/2008/030439A2 |
Disclosed is a process for the manufacture of hydrofluoroolefins of the structure CF3CF=CHY, wherein Y can be H or F, comprising reacting at least one fluoropropane reactant of the structure CF3CFXCFYH1 wherein X can be either F or H, an...
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WO/2008/030444A2 |
A process for making CHF=CFCF3 is disclosed. The process involves (a) reacting CCI2FCF2CF3 with H2 in the presence of a catalytically effective amount of hydrogenation catalyst to form CH2FCF2CF3; and (b) dehydrofluorinating CH2FCF2CF3 f...
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WO/2008/030442A1 |
A process is disclosed for making CH2CICF2CCIF2. The process involves reacting CH2CIF with CCIF=CF2 in an addition reaction zone in the presence of an aluminum halide composition having a bulk formula of AICIxBryF3-x-y wherein the averag...
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WO/2008/030615A2 |
Disclosed herein are azeotrope and near-azeotrope compositions comprising E-1,1,1,2,3-pentafluoropropene (E-HFC-1225ye) and hydrogen fluoride. The azeotrope and near-azeotrope compositions are useful in processes to produce and in proces...
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WO/2008/030440A2 |
Disclosed is a process for producing CF3CF=CH2 comprising the steps of: adding hydrogen and CF3CF=CHF to a reaction vessel containing a hydrogenation catalyst; reacting said CF3CF=CHF with hydrogen over said hydrogenation catalyst to pro...
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WO/2008/027602A2 |
A process for making HFC-236cb is disclosed. The process comprises reacting TFE with HFC-32 in the presence of at least one co-product and a suitable catalyst to produce a product mixture comprising HFC-236cb, wherein the total amount of...
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WO/2008/026602A1 |
Disclosed is a heteroacene derivative having excellent oxidation resistance, which enables to form a semiconductor active layer by a coating method. Also disclosed are an oxidation-resistant organic semiconductor material using such a he...
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WO/2008/027737A1 |
This invention provides a process of preparing reaction-derived decahalodiphenylethane of high purity. The process comprises cofeeding separate feeds of (a) diphenylethane and (b) bromine chloride, bromine chloride and bromine, or bromin...
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WO/2008/027603A1 |
The present disclosure relates to non-ignitable gaseous compositions comprising difluoromethane and tetrafluoroethylene. When the pressure is at least 150 psig, the molar percentage of tetrafluoroethylene in the non-ignitable gaseous com...
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WO/2008/027909A1 |
This invention provides wet and dry n-propyl bromide compositions comprising minimal amounts of acetone, bromoacetone, 1-propanol, and isopropyl bromide. These n- propyl bromide compositions are formed by free-radical catalyzed hydrobrom...
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WO/2008/023780A1 |
It is intended to provide a method of rapid methylation of an aromatic compound or an alkenyl compound, which is capable of obtaining an aromatic compound or an alkenyl compound labeled with a methyl group or a fluoromethyl group under a...
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WO/2008/022791A1 |
A method for the deoxofluorination of a ketone for the production of a geminal difluoride compound in an industrial scale comprising the following steps: - preparing an educt mixture comprising a ketone and a dialkylaminosulfur trifluori...
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WO/2008/024508A1 |
The present disclosure relates to a process for separating a fluoroolefin from a mixture comprising hydrogen fluoride and fluoroolefin, comprising azeotropic distillation both with and without an entrainer. In particular are disclosed pr...
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WO/2008/022187A1 |
Azeotropic or azeotropic-like compositions of 1,1,1-trifluoroethane (HFC-143a) and 1-chloro-2,2,2-trifluoroethane (R-133a). The discovery of the azeotropic or azeotropic-like compositions of HFC-143a and R-133a permits such azeotropic or...
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WO/2008/017197A1 |
Disclosed is a method for preparing p-bromofluorobenzene, wherein bromination is carried out between liquid fluorobenzene and bromine in the presence of catalyst to produce p-bromofluorobenzene and hydrogen bromide. The method is charact...
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WO/2008/019111A2 |
Telomer compositions are provided that can include at least one taxogen unit and a telogon unit, the taxogen unit being one or more of TFP, PFP, VDF, TFMA, PMVE, VF1 TFE, CTFE, BrTFE, HFP, dichlorodif luoroethylene, chlorodifluoroethylen...
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WO/2008/015714A2 |
The object of the present invention is a process for the preparation of 1,1-dichloro-2-alkyl-1-ethylene and in particular, 1, 1-dichloro-3,3-dimethyl-1-butene. These compounds are useful intermediates for the preparation of the correspon...
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WO/2008/012559A1 |
A method for the separation of a fluoropropene from a mixture of the fluoropropene and at least one other fluorochemical, which method comprises the step of passing said mixture through a first distillation column whereby to separate a f...
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WO/2008/013779A2 |
A process is disclosed for making hydrohalopropanes or hydrofluorobutanes. The process involves reacting a hydrofluoromethane with a fluoroolefin in the presence of a modified aluminum chloride catalyst or a modified aluminum bromide cat...
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WO/2008/008252A1 |
A process is disclosed for making RR1R2CCR1R2F wherein R is selected from the group consisting of CH3, CH2F, C2H4F, and F(CF2)nCH2CH2 where n is an integer from 1 to 10, each R1 is independently selected from the group consisting of H, C...
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WO/2008/007012A2 |
The present invention relates to a method of producing liquid 1,2-dichloroethane (DCE), obtained by direct cold chlorination of ethylene in the presence of a Lewis acid type catalyst, in order to obtain, after separation from the catalys...
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WO/2008/006454A1 |
The invention relates to electroluminescent polymers which contain structural units of formula (I) and to the use of said polymers. The polymers according to the invention have improved efficiency and a longer service-life, especially wh...
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WO/2008/008351A2 |
A process is disclosed to increase the Z/E ratio of 1,2,3,3,3 pentafluoropropene. The process involves contacting a starting material comprising 1,2,3,3,3 pentafluoropropene with a catalyst on AlF3 or carbon, wherein the catalyst is sele...
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WO/2008/007011A2 |
Composition for hydrophobic treatment comprising one or more mixed compounds having the formula (I) in which - at least one R is a Ca F2a+1 group, a being a whole number, where another R may be a Si X3-b R1 b group, - b being 0, 1 or 2, ...
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WO/2008/008519A2 |
Disclosed is a process for separating fluoroolefin from a composition comprising HF and fluoroolefin, said process comprising extracting said composition with an extractant. Also disclosed is a composition comprising HF, at least one flu...
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WO/2008/008350A2 |
A process is disclosed for making CF3CF=CHF. The process involves contacting at least one hexafluoropropane selected from the group consisting of CF3CF2CH2F and CF3CHFCHF2 with a chromium oxyfluoride catalyst in a reactor to obtain a pro...
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WO/2008/001844A1 |
A process for industrially advantageously producing high-purity hexafluoropropylene; and a use of this high-purity hexafluoropropylene, specifically, a cleaning gas for removing deposits in a semiconductor manufacturing apparatus or liqu...
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WO/2008/001718A1 |
A novel useful dehydroxylated fluorinating agent which comprises sulfuryl fluoride (SO2F2) and an organic base containing no free hydroxy group in the molecule. With the dehydroxylated fluorinating agent, optically active fluorinated der...
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WO/2008/000693A1 |
Process for the manufacture of 1,2-dichloroethane starting from a stream of ethane according to which: a) the stream of ethane is subjected to a catalytic oxydehydrogenation producing a gas mixture containing ethylene, unconverted ethane...
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WO/2008/000705A1 |
Process for the manufacture of 1,2-dichloroethane starting from a stream of ethane according to which: a) the stream of ethane is subjected to a catalytic oxydehydrogenation producing a gas mixture containing ethylene, unconverted ethane...
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WO/2008/002499A2 |
A process is disclosed for producing 2,3,3,3-tetrafluoropropene and 1,3,3,3-tetrafluoropropene. The process involves pyrolyzing 1,1,1,2,3-pentafluoropropane.
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WO/2008/002501A2 |
A process is disclosed for making CF3CF=CHF. The process involves reacting CF3CCIFCCI2F with H2 in a reaction zone in the presence of a catalyst to produce a product mixture comprising CF3CF=CHF. The catalyst has a catalytically effectiv...
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WO/2008/002500A1 |
A process is disclosed for the manufacture Of CF3CF=CH2 and CF3CH=CHF. The process involves dehydrofluorinating CF3CHFCH2F in the presence of a dehydrofluorination catalyst to produce a product mixture comprising CF3CF=CH2 and CF3CH=CHF,...
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WO/2008/000702A1 |
Process for the manufacture of 1,2-dichloroethane starting from a stream of ethane according to which: a) the stream of ethane is subjected to a catalytic oxydehydrogenation producing a gas mixture containing ethylene, unconverted ethane...
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WO/2007/147988A1 |
The present invention relates to a process for producing pentafluorethane. More particularly, the subject of the invention is a continuous process for producing pentafluorethane comprising (i) a step of fluorinating perchlorethylene (PER...
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WO/2007/147870A1 |
Process for the manufacture of DCE starting with a hydrocarbon source according to which: a) the hydrocarbon source is subjected to a first cracking step, namely a pyrolysis step carried out in at least one cracking furnace, thus produci...
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WO/2007/149660A1 |
A process for the activation of a fluorination catalyst in which a catalyst precursor compound, supported or unsupported is first dried and thereafter activated by exposure to an activating agent at a pressure greater that about 100 psig...
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WO/2007/147775A1 |
The present invention refers to a process for preparing a compound of the formula (I) wherein R denotes an organic radical which, together with the two carbon atoms to which it is bonded, forms a carbocyclic or heterocyclic ring; R1, R2,...
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WO/2007/144632A1 |
A method of drying a fluid comprising a fluoropropene, which method comprises the step of contacting the fluid with a desiccant comprising molecular sieve having openings which have a size across their largest dimension of from about 3 Ã...
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WO/2007/144599A2 |
The invention relates to processes for the production of fluorinated cyclopropanes In particular, the invention relates to a process for the preparation of fluorinated cyclopropanes for use in compositions, often in heat transfer composi...
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WO/2007/145171A1 |
Disclosed is a method for producing 1,3,3,3-tetrafluoropropene by subjecting 1,1,1,3,3-pentafluoropropane to a hydrogen fluoride elimination reaction in a gas phase in the presence of a catalyst. This method for producing 1,3,3,3-tetrafl...
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WO/2007/143519A1 |
Described is a process for separating an organic phase comprising mainly propyl bromide from a crude reaction mixture formed by free-radical catalyzed hydrobromination of propylene with hydrogen bromide. The process comprises (A) feeding...
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WO/2007/141295A1 |
The preparation of an intermediate, a process for the preparation thereof and the process of preparing [4-[3,3-Bis-(4-bromo-phenyl)-allyloxy]-2-methyl-phenoxy]-ace
tic acid using this intermediate are described.
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WO/2007/143055A2 |
This invention relates to a process for purifying at least one of perfluoromethane and nitrogen trifluoride from a mixture thereof using an ionic liquid. The process may be performed by a technique such as extractive distillation or abso...
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WO/2007/142244A1 |
Disclosed are a novel polyfluorodiene, a production method thereof, and a novel fluorine-containing polymer. Specifically disclosed are a compound represented by the following formula: CF2=CFCH2CHR(CH2)mCX=CH2, a polymer having a repeati...
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WO/2007/138209A1 |
The invention relates to a method for producing pentafluoroethane, and especially to a method comprising (i) a step during which perchloroethylene and optionally 2,2-dichloro-1,1,1-trifluoroethane and/or 2-chloro-1,1,1,2-tetrafluoroethan...
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WO/2007/138210A1 |
The invention relates to a method for producing hydrofluorocarbons. Said method comprises a step of reacting at least one hydro(fluoro)chlorocarbon or chlorocarbon with hydrofluoric acid in a gaseous phase in the presence of a catalyst, ...
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WO/2007/125972A1 |
Disclosed is a method for commercially producing hexafluoro-1,3-butadiene, which can be used as an etching gas for semiconductor microfabrication, safely at low cost. Specifically disclosed is a method for producing hexafluoro-1,3-butadi...
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