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Matches 451 - 500 out of 3,454

Document Document Title
WO/2001/098240
The present invention intends to provide a process for producing CF¿3?CF¿3? with good profitability using CF¿3?HF¿2? containing a compound having chlorine atom within the molecule, and use thereof. In the process of the present inven...  
WO/2001/096237
Disclosed is an intercalant compound having formula (I): wherein R?1¿ is H or a C¿1?-C¿4? alkyl, n is 2-17, and R?2¿ is a radical selected from the group consisting of X, COOR?3¿, CN, NR¿2?, and NR¿2?.HX, wherein R?3¿ is R, NR¿2...  
WO/2001/083411
A process for removing a (hydro)haloalkene impurity from a product stream containing that impurity and a desired compound is described. The process comprises contacting the product stream with a solid adsorbent comprising pores having op...  
WO/2001/083412
Tetrafluoromethane containing ethylene compounds, hydrocarbon compounds, carbon monoxide and/or carbon dioxide is contacted with zeolite having an average pore size of 3.4 to 11 Å and an Si/Al ratio of 1.5 or less and/or a carbonaceous ...  
WO/2001/081353
The invention concerns ion liquids derived from the reaction of at least a halogenated or oxyhalogenated Lewis acid based on titanium, niobium, tantalum, tin or antimony with an organic salt of formula X?+¿A?-¿ wherein A?-¿ is a halid...  
WO/2001/077048
The invention concerns a method for preparing a hydro(chloro)fluoroalkane which consists in reacting a halogenated hydro(chloro)fluoroalkane precursor with a hydrogen fluoride in the presence of a catalyst comprising chromium (Cr) and at...  
WO/2001/077047
The invention concerns a method for preparing a hydrofluoroalkane which consists in reacting a precursor of hydrofluoroalkane with hydrogen fluoride in the presence of a catalyst comprising chromium (Cr) and another metal.  
WO/2001/074483
The invention relates to a process for preparing a co-precipitated Cr2O3/Al2O3 catalyst promoted by zinc, said process comprising co-precipitation of chromium and aluminum metal hydroxides from corresponding trivalent metal salt solution...  
WO/2001/068574
The invention relates to chemical technology and can be used in the production of dichloroethane with the aid of direct ethylene chlorinatioin in liquid dichloroethane. The inventive method is directed at increasing the productivity of s...  
WO/2001/068575
A cation or acid generator which, upon irradiation with energy rays, can generate cations or an acid with high sensitivity and which is suitable for use in chemical amplification type resist materials. It comprises an energy-ray-sensitiv...  
WO/2001/066498
The invention concerns a method for obtaining a hydrofluoroalkane which consists in subjecting the hydrofluoroalkane comprising organic impurities to at least two distillations.  
WO/2001/058841
A method of treating a fluorocarbon feedstock includes generating, in a high temperature zone, an electrical arc between at least one cathode and at least one anode, generating in the high temperature zone and by means of the electrical ...  
WO/2001/058840
A method of treating a fluorocarbon feedstock includes generating, in a high temperature zone, an electrical arc between at least one cathode and at least one anode, generating in the high temperature zone and by means of the electrical ...  
WO/2001/058840
A method of treating a fluorocarbon feedstock includes generating, in a high temperature zone, an electrical arc between at least one cathode and at least one anode, generating in the high temperature zone and by means of the electrical ...  
WO/2001/046099
A method is disclosed for the preparation of a hydrofluorocarbon comprising the steps of: (a) chlorinating a ketone to produce a chlorinated ketone; (b) fluorinating said chlorinated ketone to produce a fluorinated ketone; (c) reducing s...  
WO/2001/042176
A process for producing vinyl chloride monomer where significant quantities of both ethane and ethylene in input streams to the affiliated reactor where hydrogen chloride in the reactor effluent is essentially fully recovered from the re...  
WO/2001/038272
A process for producing vinyl chloride monomer from ethane having input of significant quantities of both ethane and ethylene in input streams to the affiliated reactor where hydrogen chloride in the reactor effluent is reacted away in a...  
WO/2001/038274
A process for producing vinyl chloride monomer from ethylene and ethane having input of significant quantities of both ethane and ethylene in input streams to the affiliated reactor where hydrogen chloride in the reactor effluent is only...  
WO/2001/038275
A process for the dehydrohalogenation of halogenated alkanes involving contacting a halogenated alkane having three or more carbon atoms with a rare earth halide or rare earth oxyhalide catalyst under process conditions sufficient to pre...  
WO/2001/038273
This invention is a process for producing vinyl chloride from an ethylene-containing feed, oxygen, and a chlorine source in the presence of a catalyst. The process permits direct production of vinyl chloride in a single reactor system, a...  
WO/2001/038271
An oxidative halogenation process involving contacting a hydrocarbon, for example, ethylene, or a halogenated hydrocarbon with a source of halogen, such as hydrogen chloride, and a source of oxygen in the presence of a catalyst so as to ...  
WO/2001/034542
The invention relates to a method and a device for the optimal use of reaction heat resulting from the production of 1,2-dichloroethane from ethene and chlorine. The aim of the invention is achieved by extracting reaction heat liberated ...  
WO/2001/032592
A process for preparing halogenated ethanes, particularly pentafluoroethane, from a mixture produced by the reaction of perchloroethylene, hydrogen fluoride and a recycle stream. The preferred process utilizes phase separation techniques...  
WO/2001/028959
The present invention provides a method of selectively fluorinating a carbon-hydrogen bond at an unactivated saturated sp?3¿ hybridised carbon atom of an organic compound, the method including reacting the organic compound with elementa...  
WO/2001/027057
A process for removing a chlorinated methane impurity from a stream comprising of halogenated compound other than the chlorinated methane impurity, the process comprising contacting the stream with a polymer adsorbent to produce a purifi...  
WO/2001/025175
The invention concerns a method for obtaining halogenated hydrocarbons comprising at least 3 carbon atoms by discontinuous reaction of a haloalkane with an olefin in the presence of a catalyst and a co-catalyst and by gradually adding at...  
WO/2001/025177
The invention concerns a method for recovering a co-catalyst of an aqueous phase by treatment with a base and a step which consists in separating the co-catalyst whereby the co-catalyst is isolated from the aqueous phase treated with the...  
WO/2001/025176
The invention concerns a method for obtaining halogenated hydrocarbons comprising at least 3 carbon atoms by reacting a haloalkane with an olefin in the presence of a catalyst in an essentially water-free reaction medium.  
WO/2001/021564
The invention relates to a method for the production of 1,2-dichlorethane by direct chlorination using chlorine and ethene in which, despite low reaction temperatures during direct chlorination, reaction heat produced is nevertheless use...  
WO/2001/017639
In a biomass extraction circuit there is a need for an improved evaporator. An evaporator (12) includes an inlet for a liquid solvent/biomass mixture, the inlet including a spray nozzle (27). The evaporator (12) includes a heated vessel ...  
WO/2001/017933
The invention relates to the production of purified, saturated, partially fluorinated and perfluorinated hydrocarbon compounds from raw materials, which are tainted with impurities and absorb light at a wavelength of $g(l) > 200 nm. Said...  
WO/2001/014295
A method of treatment by which the content of unsaturated-compound impurities in 1,1,1,3,3-pentafluoropropane (R245fa) is reduced while minimizing the loss of R245fa. R245fa containing unsaturated compounds as impurities is brought into ...  
WO/2001/007384
Processes for preparing a variety of fluorocarbons are disclosed. Processes are described wherein the yields of desired products are increased by endlessly converting the undesired products to reactive intermediates. Trifluoroethylene is...  
WO/2000/076658
A catalyst for use in the hydrochlorination of methanol which comprises an $g(h)-alumina doped with an alkali metal salt, e.g. caesium chloride, in order to reduce selectivity to demethyl ether and to delay the onset of coking on the cat...  
WO/2000/076945
Alkanes containing chlorine can be produced by attaching chlorine to C-C-double bonds or C-C-triple bonds or by exchanging hydrogen for chlorine, by bringing the starting compound in the gas or liquid phase into contact with elementary c...  
WO/2000/071492
A process for fluorinating a hydrocarbon substrate is by mixing it with an inert diluent and mixing the diluted substrate with a gaseous fluorinating reagent to form a foam reaction mixture. The fluorinating reagent reacts with the subst...  
WO/2000/069797
Preparation of HFC 227ea by reacting HFP with hydrogen fluoride comprising the steps of charging the reaction mixture therefrom to a liquid-phase separator, allowing a HFC 227ea-rich phase and a hydrogen fluoride-rich phase to separate u...  
WO/2000/068170
A method of fluorinating a substance comprises providing a reaction mixture comprising a liquid or supercritical carbon dioxide reaction medium, a first reactant, and a second reactant, wherein the first reactant is a fluorinating reagen...  
WO/2000/068172
A process for preparing a haloalkane comprising: (a) contacting a haloalkane starting material with a haloalkene starting material in the presence of an effective amount of a catalyst complex under conditions effective to facilitate an a...  
WO/2000/059850
A method for the production of 1,1,1,3,3-pentafluoropropene, and particularly to a method characterized by high conversion, yield and selectivity by contacting 2,2-dichloro-1,1,1,3,3,3-hexafluoropropane with hydrogen in the presence of a...  
WO/2000/058241
The invention provides a method of selectively fluorinating an organic compound at an unactivated saturated sp?3¿ hybridised carbon atom, the method comprising reacting the compound with a fluorinating agent containing an N-F bond. The ...  
WO/2000/056833
Disclosed are binary azeotrope-like compositions consisting essentially of 1,1,1,3,3-pentafluorobutane (HFC-365mfc) and 1,1,1,2,3,4,4,5,5,5-decafluoropentane (HFC-43-10mee) or nonafluoromethoxybutane. The present invention further includ...  
WO/2000/056834
The present invention relates to azeotrope-like compression refrigerant compositions consisting essentially of difluoromethane (HFC-32), pentafluoroethane (HFC-125), 1,1,1,2-tetrafluoroethane (HFC-134a) and 0.5-5 weight percent of a hydr...  
WO/2000/056687
The invention concerns a method for separating hydrogen fluoride from its mixtures with 1,1,1,3,3-pentafluorobutane by extraction using an organic solvent 1,1,1,3,3-chloro(fluoro)butane.  
WO/2000/055107
The invention relates to a method and to a system for producing 1,2 dichloroethane or ethylene (di)chloride (EDC) using a circulating reaction medium and a catalyst. The aim of the invention is to allow a catalytic chlorination of the et...  
WO/2000/053549
The invention relates to a process for preparing a fluorinated product, such as 1,1,1,2,3,3,3-heptafluoropropane, comprising reacting a molar excess of an aliphatic starting material such as 1,1,1,3,3,3-hexafluoropropane in the liquid ph...  
WO/2000/037401
The invention concerns a method for separating a mixture comprising at least a hydrofluoroalkane and hydrogen fluoride, which consists in reacting a hydrofluoroalkane/hydrogen fluoride mixture with at least a chlorinated or chlorofluorin...  
WO/2000/036046
The invention concerns compositions comprising 1,1,1,3,3-pentafluorobutane and more than 5 wt. % of at least a non-flammable fluorinated compound and use thereof.  
WO/2000/035839
A process for catalytic addition of haloalkanes to alkenes involving the step of reacting the haloalkane with the alkene in the presence of a catalyst. The catalyst is an organophosphite compound represented by the following formula: P(O...  
WO/2000/034216
According to the present invention there is provided a process for the production of a trichloroalkane derivative comprising reacting an alkene derivative with chloroform, characterised in that the process is initiated by photochemical c...  

Matches 451 - 500 out of 3,454