Patents
Patents for C07C 17 - Preparation of halogenated hydrocarbons (19,929)
05/1993
05/04/1993US5208398 Hydrogen fluoride extraction of 1,1,1,3,3-pentafluorobutane and 1,1-dichloro-fluoroethane
05/04/1993US5208397 Hydrogenolysis of halocarbon mixtures
05/04/1993US5208396 Halogenation and dehalogenation in the presence of iodine or hydrogen iodide
05/04/1993US5208395 Manufacture of hydrofluorocarbons
05/04/1993US5208394 Process for producing chlorofluorobenzenes
05/04/1993US5208393 Hydrogenation Catalysts
05/04/1993US5207876 Ketone, ether or ester extraction agents
05/04/1993CA1317315C Process for the synthesis of perfluoroalkadienes
04/1993
04/29/1993WO1993008147A1 Improved process for separating and recovering fluorocarbons and hydrogen fluoride from mixtures thereof
04/29/1993WO1993008146A1 Process for the manufacture of 1,1,1,2-tetrafluoroethane
04/29/1993CA2120921A1 Improved process for separating and recovering fluorocarbons and hydrogen fluoride from mixtures thereof
04/28/1993CN1071412A Process for removing acetone from carbonylation processes
04/27/1993US5206399 2,2'-bis(diphenylphosphino)-5,5',6,6',7,7',8,8'-octahydro-1,1'-binaphthyl and transition metal complex containing the same as ligand
04/21/1993EP0538085A1 Stabilisation of 1,1-dichloro-1-fluoroethane
04/21/1993EP0537760A2 Process for purifying 1,1,1-trifluoro-2,2-dichloroethane from isomer 1,1,2-trifluoro-1,2-dichloroethane
04/21/1993EP0537759A2 Process for isomerizing 1,1,2-trifluoro-1,2-dichloroethane to 1,1,1-trifluoro-2,2-dichloroethane
04/21/1993EP0537560A1 Process for the preparation of 1,1,1,2-tetrafluoroethane
04/21/1993EP0537540A1 Process for the radical chlorination or bromination of methyl substituted aromatics
04/21/1993EP0537508A1 Stabilized 141b
04/20/1993US5204019 2,3-difluorobiphenyls
04/15/1993WO1993007109A1 3,4-dihydro-4-oxo-3-(prop-2-enyl)-1-phtalazineacetic acids and derivatives, preparations thereof and drugs containing same
04/15/1993DE4133810A1 Utilisation of reaction enthalpy in 1,2- di:chloro-ethane prodn. - by reacting ethylene@ and chlorine@ and using sub-streams to ensure stable operation of rectifying column
04/15/1993CA2120606A1 3,4-dihydro-4-oxo-3-(prop-2-enyl)-1-phthalazineacetic acids and derivatives, preparations thereof and drugs containing same
04/14/1993EP0536511A1 Stabilized 1,1-dichloro, 1-fluoro ethane
04/14/1993EP0536420A1 Process for producing hydrochloromethanes
04/14/1993EP0536246A1 Fluorination of haloolefins
04/14/1993EP0344223B1 New perfluoroalkanes and fluorination products thereof
04/14/1993CN1070904A 2,4-fluorobenzene bichloride producing technology
04/14/1993CN1070903A Gm-dihydropolyfluoroalkanes and monohydro-polyfluoroalkene processes for their producition, and use in cleaning compositions
04/13/1993US5202512 Process for the preparation of halogenoalkanes
04/13/1993US5202511 Catalyst diluent for oxychlorination process
04/13/1993US5202510 Activation of noble metal catalysts for use in hydrodehalogenation of halogen-substituted hydrocarbons containing fluorine and at least one other halogen
04/13/1993US5202509 Reacting hydrofluoric acid with halogenated hydrocarbons in presence of mixture of antimony trihalide and titanium tetrahalide
04/13/1993US5202102 Pretreatment of dry alumina catalyst with mixture of chlorine and hydrogen chloride in oxygen-free atmosphere improves yield of unsaturated hydrocarbons having reduced amounts of halogens
04/12/1993CA2080315A1 Process for the preparation of 2,4-dichlorofluorobenzene
04/12/1993CA2080204A1 Process for the free-radical chlorination or bromination of methyl aromatic compounds
04/10/1993WO1993007112A1 Process for removing acetone from carbonylation processes
04/10/1993CA2077588A1 Stabilized 14lb
04/10/1993CA2076694A1 Stabilized 141b
04/08/1993DE4132762A1 Processing cleavage gases from thermal cleavage of 1,2-di:chloro-ethane - by cooling the hot gas mixt., sepg. into gas and liq. phases, filtering coke out of the liq. phase, back-washing filter with organic liq., etc.
04/08/1993DE4132761A1 Processing cleavage gases from thermal cleavage of 1,2-di:chloroethane - by treating hot gas mixt. in quencher with liq. cleavage gas condensate, comminuting coke from sump and distilling coke dispersion
04/07/1993CN1070633A Catalytic process for producing 1,1,1-trichloro-2,2,2-trifluoroeth
04/06/1993US5200548 2,4,5-Trihalogeno- and 2,3,4,5-tetrahalogenobenzene derivatives
04/06/1993US5200431 Process for the separation of halogenated hydrocarbons by extractive distillation
04/06/1993US5200376 Zeolite exchanged with MN and CU
04/01/1993WO1993006110A1 Preparation and use of (2-butene-1,4-diyl)magnesium complexes in organic synthesis
04/01/1993DE4132030A1 Recovering abraded catalyst from di:chloroethane oxychlorination prod. - by dry process using dust separator or electrofilter, pref. followed by desorption, to give easily disposable waste water
03/1993
03/31/1993EP0534829A1 Process and additive for stabilising compositions based on halogenated solvents, compositions obtained and their use for degreasing or cleaning metal objects
03/31/1993EP0534412A2 Process for the production of 4-chloro-trichloro-methyl benzene
03/31/1993EP0533731A1 Process for halogenating aromatic compounds
03/30/1993US5198593 Process for purification of ethylene compound having fluorine-containing organic group
03/30/1993US5198567 Benzonorbornene derivatives, processes for their preparation and medicinal and cosmetic compositions containing them
03/30/1993US5198531 Polymeric resin for peptide synthesis
03/30/1993US5198199 Process for the recovery of antimony-based catalysts used for the fluorination of halgenated hydrocarbons
03/30/1993US5198121 Drying of hydrocarbon/hydrochloric acid/water admixtures
03/30/1993CA1315282C Insecticidal cyclopropyl-substituted di(aryl) compounds
03/30/1993CA1315281C Continuous decomposition of diazonium fluorides
03/28/1993CA2079195A1 Method and additive for stabilizing degreasing compositions based on halogenated solvents
03/25/1993DE4131576A1 Using heat of di:chloroethane vapour from oxychlorination and vinyl chloride mfr. - by condensing separate streams in distn., condensn. and drying zones
03/25/1993DE4131213A1 Carbon tetra:chloride conversion by gas phase reaction with alcohol - using active alumina and/or silica catalyst bed, giving high conversion to chloride
03/24/1993EP0533003A2 Process for the preparation of fluorine containing derivatives
03/24/1993EP0532686A1 Production of saturated halohydrocarbons.
03/24/1993EP0532596A1 Fluorination process
03/24/1993EP0532540A1 Method for preparing 1,1-dichloro-1-fluoroethane.
03/24/1993EP0306505B1 Acetylene derivatives as components of liquid crystal phases
03/23/1993US5196619 Mercaptans and hydrogen sulfide
03/23/1993US5196618 Metal halide or oxide catalyst
03/23/1993US5196616 Process for separating and recovering fluorocarbons and hydrogen fluoride from mixtures thereof
03/23/1993US5196615 Tantalum pentachloride or bromide
03/23/1993US5196611 Chlorination of the alcohol, a phosphine oxide catalyst
03/23/1993US5196140 Electro-optical liquid crystal display element
03/23/1993US5196094 Separation of 1,1,1-trichloroethane from the lower alcohols by extractive distillation
03/23/1993CA1314896C Process for preparing iodinated substituted aromatic compounds
03/18/1993WO1993005002A2 Gem-dihydropolyfluoroalkanes and monohydropolyfluoroalkenes, processes for their production, and use of gem-dihydropolyfluoroalkanes in cleaning compositions
03/17/1993EP0531381A1 Process and catalyst for hydrohalogenation of hydrocarbons
03/17/1993EP0329752B1 Fluorinated oligophenyls and their use in liquid crystal materials
03/17/1993CN1069962A Process for preparation of insecticidal cyclopropyl-substituted di(aryl) compounds
03/17/1993CN1020091C Insecticidal cyclopropyl-substituted di( aryl) compound
03/16/1993US5194619 Process for the preparation of substituted indenes
03/11/1993DE4129391A1 Benzene@ removal from unreacted di:chloroethane from vinyl chloride mfr. - by chlorination over gamma-alumina, avoiding contamination
03/10/1993EP0531023A1 Transmission media covered with lead-free stabilized polyvinyl chloride
03/10/1993EP0530208A1 Process for producing alpha-fluorostyrols
03/10/1993CN1069720A Process and catalyst for hydrohalogenation of hydrocarbons
03/09/1993US5192733 Perchloroethylene and trichloroethylene selectivity
03/09/1993CA1314139C Halocarbon blends for refrigerant use
03/04/1993WO1993004024A1 CATALYTIC PROCESS FOR PRODUCING CCl3CF¿3?
03/03/1993EP0529342A2 Removal of hydrogen fluoride from mixture of hydrogen fluoride and dichlorofluoromethane
03/02/1993US5191132 Fluorene Derivatives
03/02/1993US5190626 Vapor phase chlorination, distillation
03/01/1993CA2059204A1 Solvent extraction of i-i4ib from i-365
03/01/1993CA2059203A1 Solvent extraction of i-365 from i-i4ib
03/01/1993CA2050262A1 Reclaiming of refrigerant fluids to make same suitable for reuse
02/1993
02/24/1993EP0528247A1 Process for the preparation of tribromostyrene and beta bromoethyltribromobenzene
02/24/1993CN1069259A Purification of 1,1,1,2-tetrafluoroethane
02/24/1993CN1069258A Biscfluoromethy ether, its producing process and use for production of difluoromethane
02/24/1993CN1069168A Method of controlling insects and acarids
02/23/1993US5189230 Process for the removal of olefinic impurities from hydrochlorofluorocarbons
02/23/1993US5189229 Debrominating dibromofluoromethane with tributyltin hydride
02/23/1993CA1313884C Process for detoxifying a bottoms draw-off from a high temperature chlorination reactor
02/17/1993CN1069021A Process for removing acetone from mixture comprising acetone, methyl acetate and methyl iodide