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WO/2008/115261A1 |
High assay, reaction-derived decabromodiphenylethane product is prepared by feeding (i) diphenylethane or (ii) partially brominated diphenylethane having an average bromine number less than about two, or (iii) both of (i) and (ii), into ...
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WO/2008/111414A1 |
Disclosed is a catalyst composition comprising a fluoride of iron or cobalt and a nitrogenated heterocyclic compound represented by the general formula (1A) or (1B). (1A) or (1B) wherein R1 and R2 independently represent a substituted or...
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WO/2008/111045A1 |
The invention provides a process for the recovery of HCI from a dilute solution thereof, comprising: a) bringing a dilute aqueous HCI solution into contact with a substantially immiscible extractant, said extractant comprising: 1) an oil...
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WO/2008/111521A1 |
Disclosed is a method for producing an iodizing agent, which is characterized in that an iodine molecule is electrolyzed in a solution using an acid as a supporting electrolyte. This method for producing an iodizing agent enables to prod...
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WO/2008/107578A1 |
The invention relates to a method for producing 1,1-difluoroethane. The invention more precisely relates to a method for producing 1,1-difluoroethane by the gaseous-phase fluorination of 1,2-dichloroethane (or D12 of the formula CH2CICH2...
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WO/2008/104690A1 |
The present invention relates to a method for producing methylene chloride. The invention more precisely relates to a single-step method for selectively obtaining methylene chloride from formol, optionally mixed with methanol.
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WO/2008/106286A2 |
A composition comprising perfluoro-[2,2]-paracyclophane dimer compound is disclosed. The synthesis reaction of the paracyclophane dimer from 1,4-bis(chlorodifluoromethane)-2,3,5,6-tetrafluorobenzene involves heating in the presence of a ...
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WO/2008/097348A1 |
Bromine is scrubbed from a gaseous mixture of bromine and hydrogen bromide by passing the mixture into a mixture formed from (i) diphenylethane and/or partially brominated diphenylethane with average bromine number less than about 2 and ...
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WO/2008/093879A1 |
Disclosed is a method for producing a conjugated aromatic compound which is characterized in that an aromatic compound (A) wherein one or two leaving groups are bonded to an aromatic ring is reacted with an aromatic compound (A) having t...
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WO/2008/090127A1 |
The present invention relates to a method for the production of substituted 2-aryl malonic acid esters of the general formula (I), wherein R stands for C1-C6-alkyl or C1-C4-alkoxy-C1-C4-alkyl; Ar stands for phenyl or a heteroaromatic 5-m...
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WO/2008/083199A1 |
A composition comprises a distribution of telomers of ethylene and at least one fluoroalkyl or perfluoroalkyl halide, the telomers comprising at least one polymethylene segment ( -(CH2)n- ) and at least one halomethyl group (-CXH2) and o...
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WO/2008/077494A1 |
Disclosed is a supported, basified and halogen-containing catalyst produced by means of impregnation techniques, on a support material containing inorganic salts with at least one platinum metal, at least one metal that can modify the ox...
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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/2008/079265A1 |
A process for the synthesis of fluorinated olefins of the formula CF3CF=CHX, wherein X is F or H comprising contacting hexafluoropropene with hydrogen chloride in the vapor phase, in the presence of a catalyst, at a temperature in the ra...
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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/2008/064427A1 |
The present invention relates to a process for dehalogenation of a halogenated hydrocarbon comprising: desorbing a halogenated hydrocarbon from a solid phase using a solvent; and dehalogenating the halogenated hydrocarbon in a solvent wh...
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WO/2008/066980A1 |
Reaction-derived decabromodiphenylalkane product, especially decabromodiphenylethane product, of high purity is formed by (A) maintaining in a loop reactor a circulating inventory comprising at least Lewis acid bromination catalyst and e...
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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/2008/058444A1 |
A process for preparation of 1,1,1,3,3-pentachlorobutane comprises reacting carbon tetrachloride and 2-chloropropene, in which the catalyst includes main catalyst and co-catalyst. The said main catalyst is one or more catalysts selected ...
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WO/2008/061074A2 |
A method for removing iodine from heat transfer compositions which contain a hydrofluoroalkene, an iodocarbon, and iodine. Iodine from such heat transfer compositions by contacting the composition with activated carbon.
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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/2008/061053A2 |
A method for removing iodine and iodide ions from heat transfer compositions which contain a hydrofluoroalkene, an iodocarbon, and iodine and iodide ions. Iodine and iodide ions from such heat transfer compositions by contacting the comp...
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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/2008/057513A1 |
Disclosed is a process for the preparation of internal dihydrofluoroolefins of the formula RCH=CHC2F5, comprising reacting a fluorinated olefin of the formula RCH=CHF, wherein R is selected from perfluoroalkyl groups having from one to t...
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WO/2008/057644A1 |
Solid-state highly brominated compounds such as solid brominated flame retardants with bromine contents of at least about 60 wt% often contain occluded bromine. Because of their high bromine contents, such compounds have relatively low s...
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WO/2008/057347A2 |
An optical system comprising two or more mixed and/or similar combination optical switches co-packaged together Comprising discrete sets of fiber ports, each optical switch configured either with N input fiber ports and 1 output fiber po...
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WO/2008/056677A1 |
Disclosed is a reaction reagent for trifluoromethylation, which has high versatility and good efficiency. Specifically disclosed is a reaction reagent for trifluoromethylation, which comprises an iron compound, iodinated trifluoromethyl,...
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WO/2008/057645A1 |
A process for producing reaction-derived decabromodiphenylalkane product, especially decabromodiphenylethane product, of high assay is described. Diphenylalkane, preferably diphenylethane, is brominated by introducing the selected diphen...
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WO/2008/057574A1 |
A process for separating tetrafluoroethylene from a mixture comprising tetrafluoroethylene and carbon dioxide by contacting the mixture with at least one ionic liquid.
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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/2008/054778A2 |
A process is disclosed for making CH2=CFCF3. The process involves contacting CH2CICF2CF3 with H2 in a reaction zone in the presence of a catalyst including a catalytically effective amount of palladium supported on a support selected fro...
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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/2008/049507A1 |
The present invention relates to a process for the production of compounds of formula (I) wherein X is fluoro, chloro, bromo or iodo and n is 1, 2, 3 or 4, which process comprises reacting a compound of formula (II) wherein the substitue...
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WO/2008/050027A1 |
The present invention relates to a process for the manufacture of pentafluoroethane. It more particularly relates to a process for the manufacture of pentafluoroethane by gas-phase fluorination of perchloroethylene (PER) in the presence ...
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WO/2008/047588A1 |
A process for selectively producing 4,9-dibromodiamantane includes a step of reacting diamantane with bromine in the presence of a Lewis acid and a solvent, wherein the solvent comprises a substituted or unsubstituted, straight-chain, br...
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WO/2008/043720A2 |
A telomerisation process is described wherein a halocarbon is added to olefins like 2-chloroprop-1-ene in the presence of ionic liquids and/or compounds having at least two nitrogen atoms at least one of which is tricordinated and at lea...
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WO/2008/045910A1 |
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 catal...
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WO/2008/040803A1 |
A telomerisation process is described whereby haloalkanes like tetrachloromethane are added to halogenated olefins like 2-chloroprop-1-ene in the presence of an iron catalyst and a phosphite. The reaction products, e.g. 1,1,1,3,3-pentach...
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WO/2008/040804A1 |
A telomerisation process is described whereby fluorotrichloromethane is added to olefins like 2-chloroprop-l-ene, preferably in the presence of a catalyst. The reaction products, e.g. 1,1,3,3-tetrachloro-l-fluorobutane, can be further fl...
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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/2008/037440A1 |
A process for the synthesis of 2,2',6-tribromobiphenyl.
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WO/2008/037657A1 |
A telomerisation process is described whereby haloalkanes like tetrachloromethane are added to halogensubstituted olefins like 2-chloroprop-1- ene in the presence of a Ru catalyst. The reaction products, e.g. 1,1,1,3,3-pentachlorobutane,...
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WO/2008/037604A1 |
The present invention relates to polymers of formula poly-3 (I), their synthesis, intermediates and uses thereof.
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WO/2008/034837A1 |
The invention relates to a method for producing 1,2-dichloroethane by catalytic oxichlorination of ethene in a fluidized bed reactor, a gaseous reaction mixture containing ethene, hydrogen chloride and oxygen flowing from the bottom to t...
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WO/2008/032586A1 |
An halogenated aromatic compound can be produced by reacting an aromatic compound with a halogenating agent. In the aromatic compound solution preparation step, the aromatic compound is added to a solvent containing no Cl to prepare a so...
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WO/2008/030438A2 |
Halocarbons of the structure CF3CF2CH2X, wherein X is either F or Cl or mixtures thereof prepared by: contacting at least one 2- fluorochloropropane with hydrogen fluoride in a first fluorination step in the gas phase or liquid phase und...
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