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WO/2009/106479A1 |
Process for the manufacture of at least one ethylene derivative compound starting from a low value residual gas, preferably a ROG, according to which : a) the low value residual gas is subjected to a series of treatment steps in a low va...
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WO/2009/105521A1 |
Disclosed herein is a process for the separation of HFC-1234ze and HF by azeotropic distillation. Additionally disclosed is a process for the separation of HFC1234ze, HFC-245eb and/or 245fa, and HF by azeotropic distillation.
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WO/2009/105512A1 |
Disclosed herein are processes for separation of 2,3,3,3-tetrafluoropropene and hydrogen fluoride using azeotropic distillation. Additionally, disclosed are processes for separating mixtures of 2,3,3,3-tetrafluoropropene, hydrogen fluori...
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WO/2009/105517A2 |
Disclosed herein is an azeotrope or azeotrope-like composition comprising 3,3,3-trifluoropropene and hydrogen fluoride. Also disclosed herein are processes for separating 3,3,3-trifluoropropene and hydrogen fluoride by azeotropic distill...
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WO/2009/087067A1 |
Process for preparing perfluoro-1,3-butadiene, comprising the following steps : A) preparation of fluoro-halo-butanes of formula : CF2 YI-CFYIICFYIICF2 YI (V) in which YI and YII which may be identical or different, may be H, C1 or Br, w...
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WO/2009/085846A2 |
Purified chlorinated alkenes are produced by a process in which a mixture of i) a first chlorinated alkene that has at least one beta-chlorine substituent and no alpha-chlorine substituents and ii) a second chlorinated alkene that has at...
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WO/2009/084703A1 |
Using hexafluoropropene (HFP) as a raw material, 1,1,1,2-tetrafluoropropene (HFC-1234yf) is obtained by hydrogenation, dehydrofluorination and distillation. In a series of reactions comprised of hydrogenating HFP to obtain 1,1,1,2,3,3-he...
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WO/2009/085837A2 |
2,3-dichlorobutadiene-1,3 of high purity is produced from 1,2,3,4-tetrachlorobutane by a process comprising the steps of dehydrochlorination, chlorination of the reaction product obtained in the dehydrochlorination step and subsequent se...
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WO/2009/076260A2 |
The present invention provides azeotrope-like compositions of 1,1,1,2,2-pentafluoropropane (HFC-245cb) with either the Z isomer of 1, 1, 1, 2, 3-pentafluoropropene (HFO-1225yeZ) alone or with mixtures of the E and Z isomers of 1,1,1,2,3-...
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WO/2009/076120A2 |
The invention pertains to azeotrope-like compositions of 1,1,2,3,3-pentafluoropropene (HFC-1225yc) and any one of 1,1,1,2-tetrafluoropropene (HFC-1234yf) or the Z-isomer of 1,1,1,2,3-pentafluoropropene (HFC-1225yeZ), and uses thereof, in...
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WO/2009/066580A1 |
Disclosed is a method for producing a fluorine-containing olefin, which enables to obtain the object product, namely a fluorine-containing olefin, with a higher selectivity than the conventional methods by reducing the amount of a by-pro...
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WO/2009/064022A2 |
A mixture comprising a Z-isomer and an E-isomer of 1,1,1,2,3-pentafluoropropene (HFC-1225ye) is distilled to separate it into a first stream composed substantially of either one of the Z-isomer and the E-isomer, and a second stream compr...
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WO/2009/060221A1 |
A method of catalytically converting 2,2, dichlorohexafluoropropane (HFC- 216aa) into 2 chloro 1,1,1,2,3,3,3 heptafluoropropane (HFC-217ba) including the step of exposing the 2,2 dichlorohexafluoropropane to a chromium-containing catalys...
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WO/2009/052064A2 |
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 proces...
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WO/2009/048048A1 |
Disclosed is a method for producing trans-1,3,3,3-tetrafluoropropene, wherein cis-1,3,3,3-tetrafluoropropene is brought into contact, in a gas phase, with a metal oxide, a metal oxide-loaded activated carbon which is loaded with a metal ...
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WO/2009/035130A2 |
The present invention provides a simple and efficient process for producing 2,3,3,3-tetrafluoropropene(HFC-1234yf), the process being useful for industrial production. More specifically, the present invention relates to: a process for pr...
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WO/2009/027108A1 |
The present invention relates to a new process for preparing estrogen-antagonistic 11 β-fluoro-17α-alkylestra-1,3,5(10)-triene-3,17-diols of the general formula (I) having a 7α-(ξ-alkylamino-ω-perfluoroalkyl)alkyl side chain and to ...
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WO/2009/026082A1 |
Disclosed herein is a process comprising: contacting a starting material comprising 1,2,3,3,3 pentafluoropropene in the vapor phase with an aluminum catalyst to obtain a final product, wherein the Z/E ratio of 1,2,3,3,3 pentafluoropropen...
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WO/2009/026526A1 |
A method for producing fluorinated organic compounds, including hydrofluoropropenes, which preferably comprises converting at least one compound of formula (I): to at least one compound of formula (II): where X1 is Cl, Br or I, each X2 i...
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WO/2009/026080A1 |
A starting material comprising 1,2,3,3,3 pentafluoropropene is contacted with an aluminum chlorofluoride (AlClxF3-x) catalyst to obtain a final product wherein the Z/E ratio of 1,2,3,3,3 pentafluoropropene is either increased or decrease...
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WO/2009/021154A2 |
The present disclosure provides methods for pre-treating activated carbon before it is used in a dehydrochlorination process. The methods can comprise mixing the activated carbon with an acid, an oxidizing agent in a liquid phase, or an ...
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WO/2009/015304A1 |
Provided is a continuous process for preparing 1,1,2,3-tetrachloro-1-propene having the steps of catalytically dehydrochlorinating CH2ClCCl2CH2Cl in the gas phase to produce CHCl=CClCH2Cl; chlorinating the CHCl=CClCH2Cl to form CHCl2CCl2...
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WO/2009/015317A1 |
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 fl...
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WO/2009/010472A1 |
Halogenated alkenes, especially fluorinated alkenes can be prepared from halogenated and fluorinated alkanes, respectively, by dehydrohalogenation or dehydrofluorination in the presence of a high-surface metal fluoride or oxifluoride. Pr...
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WO/2009/006358A1 |
Disclosed herein is a process for the preparation of fluorine-containing olefins comprising contacting a chlorofluoroalkene with hydrogen in the presence of a catalyst at a temperature sufficient to cause replacement of the chlorine subs...
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WO/2008/149011A2 |
The present invention relates to a process for preparing (hydro)(chloro)fluoroolefins, comprising at least one step of liquid-phase fluorination of a (hydro)haloalkane or of a (hydro)haloalkene in the presence of at least one ionic liqui...
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WO/2008/147835A1 |
Disclosed is a method for forming HFO-1234ze, and for forming compositions comprising HFO-1234ze, by (a) converting, preferably by dehydrofluorination, pentafluorpropane (HFC-245), preferably 1,1,1,3,3- pentafluorpropane (HFC-245fa), pre...
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WO/2008/134061A2 |
Azeotropic or azeotrope-like compositions are disclosed. The azeotropic or azeotrope-like compositions are mixtures of Z-1,1,1,4,4,4-hexafluoro-2-butene with methyl formate, pentane, 2-methylbutane, 1,1,1,3,3-pentafluorobutane, trans-1,2...
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WO/2008/132964A1 |
Disclosed is a method for producing 3,3,3-trifluoropropyne, which is characterized in that a (Z)-1-halogeno-3,3,3-trifluoropropene represented by the formula [1] is reacted with a base. This method enables to produce 3,3,3-trifluoropropy...
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WO/2008/127940A1 |
Compositions including chlorinated propenes and a phenolic antioxidant are described herein.
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WO/2008/125825A2 |
A process for isomerising a (hydrohalo)fiuoroalkene, the process comprising contacting the (hydrohalo) fluoroalkene with a catalyst comprising an unsupported Lewis acid, a chromia-containing catalyst containing at least one additional me...
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WO/2008/120652A1 |
Disclosed is a method for producing a chlorinated and fluorinated compound, which is characterized by conducing the reaction for adding a chlorine atom to a unsaturated carbon-carbon bond in a hydrogenated compound having the unsaturated...
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WO/2008/098077A2 |
The invention provides compounds of Formula (I) : wherein R1 and R2 have any of the values or specific values defined herein, as well as composition comprising such compounds and therapeutic methods comprising the administration of such ...
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WO/2008/097638A1 |
Disclosed herein are laser cutting/etching assist fluids and methods of use thereof. The compounds include unsaturated fluorocarbons appropriate for use in laser assist applications.
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WO/2008/077868A1 |
Catalytic hydrochlorination system comprising at least one amine hydrochloride and at least one group VIII metal compound chosen from the group composed of mixtures of a platinum (IV) compound with tin (II) chloride, mixtures of a platin...
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WO/2008/075017A2 |
The invention relates to a process for preparing a compound of formula CF3CF=CHX, CHX2CX=CX2 or a linear or branched C4-7 (hydro)fluoroalkene, wherein each X is, independently, H or F provided that in CHX2CX=CX2 at least one X is F, whic...
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WO/2008/060616A2 |
A process is disclosed for making CF3CF=CHF or a mixture thereof with CF2=CFCHF2. The process involves (i) contacting CH2ClCF2CF3, and optionally CH2FCF2CClF2, in a reaction zone in the presence of a catalytically effective amount of deh...
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WO/2008/060614A2 |
A process is disclosed for making CF3CF=CH2. The process involves (i) contacting CHCl2CF2CF3 in a reaction zone in the presence of a catalytically effective amount of a dehydrofluorination catalyst to produce CCl2=CFCF3; (ii) contacting ...
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WO/2008/060612A2 |
A process is disclosed for making CF3CF=CHF or mixtures thereof with CF2=CFCHF2. The process involves (i) contacting CHCl2CF2CF3, and optionally CHClFCF2CClF2, in a reaction zone in the presence of a catalytically effective amount of deh...
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WO/2008/057794A1 |
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 fi...
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WO/2008/054779A1 |
A process is disclosed for making CF3CF=CH2 or mixtures thereof with CHF2CF=CHF. This process involves (a) reacting CHCI2CF2CF3, and optionally CHCIFCF2CCIF2, with H2 in the presence of a catalytically effective amount of a hydrogenation...
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WO/2008/053811A1 |
Disclosed is a method for producing an olefin represented by the following general formula (II): RfCF=CH2 (wherein Rf is as defined below), which is characterized in that a dehalogenation reaction is performed by bringing a fluorohalide ...
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WO/2008/054781A1 |
A process is disclosed for making CF3CF2CH3, CF3CF=CH2 and/or CF3CCI=CH2. The process involves reacting at least one starting material selected from the group consisting of halopropanes of the formula CX3CHCICH2X, halopropenes of the for...
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WO/2008/054782A1 |
A process is disclosed for making CF3CF2CH3, CF3CF=CH2 and/or CF3CCI=CH2. The process involves reacting at least one starting material selected from the group consisting of halopropanes of the formula CX3CH2CH2X, halopropenes of the form...
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WO/2008/054780A2 |
A process is disclosed for making CF3CF=CH2 or mixtures thereof with CHF=CFCHF2. The process involves contacting CCI3CF2CF3 and optionally CCI2FCF2CCIF2 with H2 in the presence of a catalyst including a catalytically effective amount of ...
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WO/2008/040969A2 |
The invention relates to a process for preparing a C3-6 hydrofluoroalkene comprising dehydrohalogenating a C3-6 hydrohalofluoroalkane in the presence of a zinc/chromia catalyst.
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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/2008/030439A2 |
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/2008/030615A2 |
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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