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Matches 551 - 600 out of 6,563

Document Document Title
WO2003002251A3
A process for preparing a fluorination catalyst using a low pressure activating step followed by a high pressure activating step.  
WO2002055457A3
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/2003/014047A1
A process for production of high-purity hexafluoroethane, wherein a mixed gas containing hexafluoroethane and chlorotrifluoromethane is reacted with hydrogen fluoride in a gas phase in the presence of a fluorination catalyst at 200-450°...  
WO2002088148B1
The ability to design and construct solid-state materials with pre-determined structures is a grand challenge in chemistry. An inventive strategy based on reticulating metal ions and organic carboxylate links into extended networks has b...  
WO/2003/004445A2
Tetrachloroethylene containing a stabilizer is contacted with a zeolite having an average pore size of 3.4 to 11 and/or a carbonaceous adsorbent having an average pore size of 3.4 to 11 in a liquid phase to obtain a high purity tetrachlo...  
WO/2003/004463A1
The invention concerns fluorofunctional statistical polymers of formula (V1), wherein: X, Y and Z represent a hydrogen atom and exhibiting in particular low glass transition temperatures obtained in particular from a monomer of formula (...  
WO2002066408A3
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/2003/002251A2
A process for preparing a fluorination catalyst using a low pressure activating step followed by a high pressure activating step.  
WO2001066498A3
The invention concerns a method for obtaining a hydrofluoroalkane which consists in subjecting the hydrofluoroalkane comprising organic impurities to at least two distillations.  
WO/2003/000626A2
Process for the treatment of by-products from a reaction for the production of organic compounds comprising a stage of evaporation of a liquid phase comprising heavy by-products on a surface, in order to form a concentrated phase compris...  
WO/2002/102750A2
A process is provided by which addition of water is used to enhance the production of any hydrochlorocarbon feedstock through the use of Kharasch chemistry, i.e. the combination of a polychlorinated alkane with an olefin to produce a chl...  
WO/2002/100809A2
A process is provided for the stabilization of polychlorinated alkanes against dehydrochlorination. The process comprises adding a phenol compound to a polychlorinated alkane such that the dehydrochlorination of the polychlorinated alkan...  
WO/2002/100941A1
The present invention relates to hydrogenated nitrile rubber polymers having lower molecular weights and narrower molecular weight distributions than those known in the art. Another object is the use of said nitrile rubber for the manufa...  
WO/2002/099007A1
The present invention provides compositions comprising an HFC component and a non-HFC component consisting essentially of methanol, having boiling points that are unexpectedly low and relatively constant, and uses thereof.  
WO/2002/098529A1
The invention relates to azeotropic and azeotrope-like mixtures of 1,1,1,3,3-pentafluorobutane (HFC-365) and hydrogen fluoride and a process for separating the azeotrope-like mixtures. The compositions of the invention are ueful as an in...  
WO/2002/099005A1
The present invention provides binary azeotrope-like compositions comprising pentafluoroethane (HFC-125) and hydrogen chloride (HCl). In addition, the invnetion relates to methods for removing HFC-125 or HCl from a mixture of HFC-125 and...  
WO2002064534A3
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/2002/094751A2
An oxidative halogenation process involving contacting a reactant hydrocarbon selected from methane, a halogenated C¿1? hydrocarbon, or a mixture thereof with a source of halogen and, preferably, a source of oxygen in the presence of a ...  
WO2002076176A3
The invention relates to mixtures of 1,1,1,3,3-pentafluoropropane and 1,1,1,3,3-pentafluorobutane. The blends are useful as blowing agents for polymer foam, solvents, aerosol propellants and heat transfer media.  
WO/2002/088148A1
The ability to design and construct solid-state materials with pre-determined structures is a grand challenge in chemistry. An inventive strategy based on reticulating metal ions and organic carboxylate links into extended networks has b...  
WO/2002/085823A1
A method for continuous production of a perfluoroalkyl iodide telomer represented by the general formula: R¿f?(CF¿2?)nI, wherein R¿f? represents a perfluoroalkyl group having one to six caron atoms, and n is an integer of 1 to 4, char...  
WO2001058841A9
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 ...  
WO2002018305A3
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 DEG C in the presence of a fluorination catalyst to obtain 2H-heptaf...  
WO/2002/076915A2
A method for separating difluoromethane from a mixture of said difluoromethane and at least one impurity, said method comprising extractively distilling said mixture using dichloromethane as the extractive agent to recover a product stre...  
WO/2002/076176A2
The invention relates to mixtures of 1,1,1,3,3-pentafluoropropane and 1,1,1,3,3-pentafluorobutane. The blends are useful as blowing agents for polymer foam, solvents, aerosol propellants and heat transfer media.  
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...  

Matches 551 - 600 out of 6,563