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Matches 551 - 600 out of 6,408

Document Document Title
WO/2002/076913A2
The invention relates to a method for preparing a halogenated olefin by reacting an alkyne and/or an allenic compound with a hydrogen halide in a liquid medium comprising at least one hydrohalogenation catalyst containing at least one pa...  
WO/2002/077117A2
Provided are azeotropic and azeotrope-like mixtures of 1,1,1,3,3- pentafluoropropane (HFC-245fa) and 1-chloro-1,1,3,3,3-pentafluoropropane (HCFC-235fa) that are useful as intermediates in the production of HFC-245fa. A process for separa...  
WO2002059230A3
The invention relates to azeotropic and azeotrope-like mixtures of 1,2,2-trichloro-1,3,3,3-tetrafluoropropane (HCFC-224aa) and hydrogen fluoride, which are useful as intermediates in the production of HCFC-224AA.  
WO/2002/066408A2
The process for producing perfluorocarbons according to the present invention is characterized in that in the production of a perfluorocarbon by contacting an organic compound with a fluorine gas, the organic compound is contacted with t...  
WO/2002/064534A2
The invention relates to a method for producing 1,2-dichloroethane, by reacting ethene with hydrogen chloride and a gas containing oxygen in an oxochlorination reactor to produce a reaction gas. According to said method, the reaction gas...  
WO/2002/064535A1
The invention relates to a method and a device for producing 1,2-dichloroethane by reacting ethylene with hydrogen chloride and an oxygen-containing gas in an oxychlorination reactor having a fluidised bed, in order to form a reaction ga...  
WO/2002/062735A1
A method for producing a mixture of fluoroalkyl iodide telomers which is represented by the formula: R¿f?(CF¿2?CF¿2?)¿n?I, wherein R¿f? represents a fluoroalkyl group having a carbon number of 1 to 10, and has a value for n of k or ...  
WO/2002/060845A1
In the synthesis of 1,1,1,3,3-pentafluorobutane (R-365mfc), a mixture of R-365mfc and the impurity 1,1,1,3-tetrathioro-2-butene (R-1354zd) is purified and R-1354zd is removed from the mixture by contacting the mixture with 1-5 mols of ch...  
WO2002018304A3
A process for the production of a hydrofluoroalkane, which process comprises contacting a hydrochlorofluoroethane of formula CC1XYCFHZ, wherein X and Y are each independently chlorine or fluorine and Z is chlorine, fluorine or hydrogen, ...  
WO2002022530A3
A method for the production of a cleanining agent and a solvent carrier with reduced toxicity resulting from lower isoropyl bromide (2-bromopropane) content will be described. The cleaning agents are effective for removal of various soil...  
WO/2002/059230A2
The invention relates to azeotropic and azeotrope-like mixtures of 1,2,2-trichloro-1,3,3,3-tetrafluoropropane (HCFC-224aa) and hydrogen fluoride, which are useful as intermediates in the production of HCFC-224AA.  
WO/2002/059068A2
The invention relates to azeotropic and azeotrope-like mixtures of 1-chloro-1,3,3,3-tetrafluoropropane (HCFC-244fa) and hydrogen fluoride, which are useful as intermediates in the production of HCFC-244fa.  
WO/2002/059067A1
Disclosed is an improved HFC manufacturing processes of the type which produces an intermediate product stream that includes a mixture of HF and at least one compound, usually an HCFC, which is relatively resistant to further fluorinatio...  
WO/2002/055457A2
A process for purifying octafluoropropane according to the present invention comprises the step of contacting a crude octafluoropropane containing impurities with an impurity decomposing agent under elevated temperature and then with an ...  
WO/2002/055459A2
A method of producing hydrofluorocarbons and/or hydrochlorofluorocarbons by using halogenated alkanes as a principal reactant. Generally, the method comprises the step of: (a) reacting a starting halogenated alkane corresponding to the f...  
WO2002030563A3
The invention relates to a method and a system for dissolving poorly soluble salt, in particular sodium chloride and other poorly soluble salts in 1,2-dichlorethane, which can be predominantly used in direct chlorination systems for prod...  
WO2002006194A3
A method of producing hydrofluorocarbons and methods of producing other commercially attractive compounds formed as by-products of hydrofluorocarbon production by using aldehydes as a principal reactant.  
WO2002004529A3
A method of removing at least one inert reaction diluent and/or wash diluent from a waste stream from a catalyst precursor production unit, where the waste stream includes at least one reaction diluent or wash solvent, at least one titan...  
WO2001098240A3
The present invention intends to provide a process for producing CF3CF3 with good profitability using CF3HF2 containing a compound having chlorine atom within the molecule, and use thereof. In the process of the present invention, a gas ...  
WO2002002492A3
Disclosed is a process which achieves improved selectively of HFC-125 and/or improved HFC/HCFC ratio (and particularly HFC-125/CFC-115 ratio) by a fluorination process which comprises reacting PCE and HF in a first reaction train to prod...  
WO2001083412A3  
WO/2002/030563A2
The invention relates to a method and a system for dissolving poorly soluble salt, in particular sodium chloride and other poorly soluble salts in 1,2-dichlorethane, which can be predominantly used in direct chlorination systems for prod...  
WO/2002/028806A1
A process is provided for the production of 1,1,1,3,3-pentachloropropane. The process comprises: (a) producing a product mixture in a reactor by reacting carbon tetrachloride and vinyl chloride in the presence of a catalyst mixture compr...  
WO2001096237A3
Disclosed is an intercalant compound having formula (I): wherein R<1> is H or a C1-C4 alkyl, n is 2-17, and R<2> is a radical selected from the group consisting of X, COOR<3>, CN, NR2, and NR2.HX, wherein R<3> is R, NR2, NR2.HX or a mono...  
WO/2002/022530A2
A method for the production of a cleanining agent and a solvent carrier with reduced toxicity resulting from lower isoropyl bromide (2-bromopropane) content will be described. The cleaning agents are effective for removal of various soil...  
WO/2002/020434A1
Fluoroalkanes such as fluoromethane labeled with ?17¿F are produced by contracting ?17¿F labeled F¿2? with alkanes, preferably methane, substituted or unsubstituted alkenes, or substituted or unsubsituted alkynes in the presence of a ...  
WO/2002/020443A1
The invention relates to chemical engineering and can be used for producing 1,2-dichloroethane by means of direct chlorination of ethylene in liquid dichloroethane. The aim of said invention is to increase the ratio of ethylene and the s...  
WO/2002/018304A2
A process for the production of a hydrofluoroalkane, which process comprises contacting a hydrochlorofluoroethane of formula CC1XYCFHZ, wherein X and Y are each independently chlorine or fluorine and Z is chlorine, fluorine or hydrogen, ...  
WO/2002/018305A2
Octafluoropropane is produced by a process comprising a step (1) of reacting hexafluoropropene with hydrogen fluoride in a gas phase at a temperature of from 150 to 450°C in the presence of a fluorination catalyst to obtain 2H-heptafluo...  
WO2001058840A3
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/2002/012153A1
Process for obtaining a hydrofluoroalkane which is purified of organic impurities, according to which the hydrofluoroalkane containing organic impurities is subjected to at least one purification treatment chosen from: (a) a treatment wi...  
WO/2002/006194A2
A method of producing hydrofluorocarbons and methods of producing other commercially attractive compounds formed as by-products of hydrofluorocarbon production by using aldehydes as a principal reactant.  
WO/2002/004529A2
A method of removing at least one inert reaction diluent and/or wash diluent from a waste stream from a catalyst precursor production unit, where the waste stream includes at least one reaction diluent or wash solvent, at least one titan...  
WO/2002/002492A2
Disclosed is a process which achieves improved selectively of HFC-125 and/or improved HFC/HCFC ratio (and particularly HFC-125/CFC-115 ratio) by a fluorination process which comprises reacting PCE and HF in a first reaction train to prod...  
WO/2001/098240A2
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/2001/096237A2
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...  
WO2001034542A3
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/2001/083412A2
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/2001/083411A1
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/2001/081353A1
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/2001/077048A1
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/2001/077047A1
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/2001/074483A1
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...  
WO2001028959A8
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 elemental...  
WO/2001/068575A1
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/2001/068574A1
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/2001/066498A2
The invention concerns a method for obtaining a hydrofluoroalkane which consists in subjecting the hydrofluoroalkane comprising organic impurities to at least two distillations.  
WO/2001/058841A1
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/2001/058840A2
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/2001/046099A1
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...  

Matches 551 - 600 out of 6,408