Patents
Sitemap › C07 - Organic chemistry › C07C - Acyclic or carbocyclic compounds › C07C 19 - Acyclic saturated compounds containing halogen atoms
Patents for C07C 19 - Acyclic saturated compounds containing halogen atoms (7,734)
07/1998
07/14/1998US5780672 Process for the selective preparation of monofluoro derivatives
07/14/1998US5779931 Azeotrope (like) compositions with difluoromethoxytetrafluoro-propane and pentafluoropropane, and methods of use
07/14/1998US5779863 Fractional distillation
07/14/1998CA2132029C Preparation of solid perfluoroalkyl bromides
07/08/1998EP0851848A1 Method for preparing heptafluoropropane
07/08/1998CN1187149A Catalyst for and method of oxychlorination
07/08/1998CN1186799A Production of hydrofluorocarbons
07/08/1998CN1186798A Chemical process
07/08/1998CN1039005C Process for reduction of carbon-halogen band in oxidation reduction system
07/02/1998WO1998028247A1 Process for producing 1,1,1,2,3,3,3-heptafluoropropane
07/01/1998EP0850211A1 Process for the preparation of 4-bromo-1,1-difluorobut-1-ene and 2,4-dibromo-1,1,1-trifluorobutane
07/01/1998EP0850210A1 Process for the preparation of halogenated alkanes
06/1998
06/30/1998US5773673 Method of making chlorinated hydrocarbons
06/30/1998US5772911 Azeotropes with ethyl formate and evaporation
06/30/1998US5772852 Distilling by heating to form an azeotrope and recovering hydrochloric acid
06/30/1998US5771713 Cryogenic rectification system for recovery of fluorine compounds
06/25/1998WO1998027145A1 Mixtures containing 1,1,1,3,3 pentafluorobutane
06/25/1998DE19725360A1 Gemische mit 1,1,1,3,3-Pentafluorbutan Mixtures with 1,1,1,3,3-pentafluorobutane
06/23/1998US5770779 Process for preparation of fluorinated hydrocarbons
06/23/1998CA2084864C Chromium and nickel oxide-based mass catalysts and their application to halogenated hydrocarbon fluoration
06/23/1998CA2029741C Vapor solvent decontamination of pcb transformer components
06/17/1998EP0847801A1 Chromium and nickel oxide-based solid catalysts useful for the fluorination of halogenated hydrocarbons
06/17/1998CN1038743C Method for preparing solid perfluoroalkyl bromides
06/16/1998US5767330 Process for preparing alkyl chlorides
06/16/1998US5766483 Contacting chemical mixture containing hydrogen fluoride with a synthetic water soluble acrylic acid polymer binder, regenrating hydrogen fluoride from the binder for reuse
06/09/1998US5763712 Process for the preparation and fractionation of a mixture of dimethyl ether and chloromethane with methanol as extractant
06/09/1998US5763709 Reacting iodofluorocarbon with organic compound having hydrogen atoms bonded to carbon atom as reducing agent in gas phase
06/09/1998US5763708 Process for the production of difluoromethane
06/09/1998US5763707 Production of pentafluoroethane
06/09/1998US5763705 Method of producing 1,1,1,3,3-pentafluoropropane, a method of producing 1,1,1,3,3-pentafluoro-2-halogeno-3-chloropropane, and a method of producing 1,1,1,2,3,3-hexachloropropene
06/09/1998US5763704 Production of difluoromethane
06/09/1998US5763701 Process for preparing pentafluoroethane (R 125)
06/09/1998US5763698 Process for reducing the fluorine content of hydrofluorocarbons and hydrohalofluorocarbons
06/03/1998EP0845519A1 Use of mixtures based on difluoromethane and pentafluoroethane as refrigerants for low temperature cooling
06/02/1998US5760282 Process for the manufacture of selected halogenated hydrocarbons containing fluorine and hydrogen and compositions provided therein
06/02/1998US5760255 Reacting with perfluoroalkylsulfonyl fluoride in presence of strong organic base in inert organic solvent
05/1998
05/28/1998DE19751551A1 Iodo-tri:fluoromethane preparation from tri:fluoromethane and iodine
05/27/1998EP0844226A1 Method of producing 1,1,1,2,2-pentafluoroethane
05/27/1998EP0844225A1 A method of producing 1,1,1,3,3-pentafluoro-2-halogeno-3-chloropropane
05/27/1998CA2220086A1 Use of difluoromethane and pentafluoroethane-based mixtures as refrigerants in very low temperature refrigeration
05/26/1998US5756868 Production of hydrofluorocarbons
05/22/1998WO1998021171A1 Liquid phase catalytic fluorination of hydrochlorocarbon and hydrochlorofluorocarbon
05/20/1998EP0842239A1 Method for monomer recovery
05/20/1998EP0842136A1 Method for preparing alpha,omega-bromochloroalkanes
05/20/1998EP0842135A1 Method for preparing alpha, omega-bromochloroalkanes
05/20/1998EP0690833B1 Production of difluoromethane
05/20/1998EP0690832B1 Production of difluoromethane
05/20/1998EP0577750B1 Azeotropic and azeotrope-like compositions of 1,1,2,2-tetrafluoroethane
05/20/1998CN1182413A Process for producing pentafluoroethane and tetrafluorochloroethane
05/14/1998WO1998019982A1 Process for the purification of 1,1-difluoroethane
05/14/1998WO1998019981A1 Manufacture of hexafluoroethane
05/13/1998EP0840719A1 Distillation processes for removing cfc-115 and hydrofluoric acid from hfc-125
05/13/1998EP0646105B1 Production of hydrofluorocarbons
05/13/1998CN1181770A Azeotropic compsns. of perfluorohexane, or 1, 1, 1, 4, 4, 4 -Hexafluorobutane, or 1, 3 -dioxolane and hydrocarbons having 5 or 6 carbon atoms
05/13/1998CN1181368A Process for stabilization of pentafluoroethane
05/12/1998US5750812 Air is pretreated with a means for removal of aromatic hydrocarbons
05/12/1998US5750810 Pyrolysis
05/12/1998US5750809 Methods of producing 1,1,1,2,2-pentafluoroethane
05/12/1998US5750807 Reaction of aldehyde with hydrogen fluoride for fluorination
05/06/1998EP0839785A1 Process for the stabilisation of pentafluoroethane
05/06/1998CN1180688A Purification of pentafluoroethane
05/05/1998US5747437 Cleaning compositions based on 1,1,1,2,2,4,4-heptafluorobutane and C1 -C3 alcohols
05/05/1998CA2152940C A method of producing 1,1,1,3,3-pentafluoropropane, a method of producing 1,1,1,3,3-pentafluoro-2-halogeno-3-chloropropane, and a method of producing 1,1,1,2,3,3-hexachloropropene
05/05/1998CA2152936C A method of producing 1,1,2,2,3-pentafluoropropane
04/1998
04/29/1998CN1180345A Method for purifying pentafluoroethane
04/28/1998US5744660 Products of tetrafluorothanes
04/28/1998US5744659 Process for the preparation of difluoromethane
04/28/1998US5744657 Process for the preparation of perfluorocarbons
04/22/1998EP0837047A1 Purification of pentafluoroethane
04/21/1998US5741748 Catalyst production for use in a process for fluorination of hydrocarbons
04/15/1998CN1179148A Reagent, compound and method for nucleophile perfluoroalkylation, and resulting derivatives
04/14/1998US5739406 Reacting hydrogen fluoride with chlro(fluoro)butane in presence of halogenation catalyst selected from group 4 or 5 metal derivatives to obtain pentafluorobutane
04/14/1998US5739090 Stabilizer comprises 1,2-epoxyalkane and acetal, and is devoid of nitroalkane
04/08/1998EP0834696A2 A waste flon disposal method
04/08/1998EP0834502A2 Polymeric polyionic compounds, process for their preparation and their use as photoinitiators
04/08/1998EP0834492A2 Fluorinated ionic sulphonylimides and sulphonylmethylides, process for their preparation and their use as photoinitiators
04/08/1998CN1037961C Chlorination process
04/08/1998CN1037960C Preparation of hydrofluoric halocarbon and hydrofluoric hydrocarbon
04/03/1998CA2187046A1 Sulfonylimides and sulfonylmethylides, use thereof as photoinitiators
04/01/1998CN1177585A Synthesis of 1, 1, 1 -trifluoroethane by fluorination of 1 -chloro- 1, 1 -difluoroethane
04/01/1998CN1177522A Catalyst for fluorination of halogenated hydrocarbon
03/1998
03/26/1998WO1998012161A1 Vapor phase process for making 1,1,1,3,3-pentafluoropropane and 1-chloro-3,3,3-trifluoropropene
03/25/1998EP0830436A1 Refrigerants based on hydrofluoroether of fluoroether
03/25/1998EP0830334A1 Azeotropic or azeotrope-like compositions of hydrofluoric acid with dihaloethanes
03/25/1998EP0830204A1 Catalyst for and method of oxychlorination
03/25/1998CN1176956A Process for separation of dimethyl ether and chloromethane in mixtures
03/24/1998US5731481 Fluorination catalyst selectivity
03/24/1998US5730073 Waste flon disposal method
03/19/1998WO1998010862A1 Fluorination catalyst and process
03/19/1998CA2263711A1 Fluorination catalyst and process
03/18/1998EP0829462A1 Process for the preparation of difluoromethane
03/18/1998EP0828557A1 Hydrodehalogenation catalysts and their preparation and use
03/17/1998US5728904 Process for the preparation of 1,1,1,3,3-pentafluoropropane
03/17/1998US5728902 Reaction of 2-trifluoromethyl-3,3,3-trifluoropropionic acid in presence of metal carbonate/bicarbonate and desiccating agent
03/16/1998CA2214438A1 Process for preparing difluoromethane
03/11/1998CN1175938A Oxychlorination of ethylene in two stage fixed-bed reactor
03/11/1998CN1037707C Azeotrope -like mixtures of 1, 1 -dichloro -2, 2, 2 -trifluoroethane and 1, 1 -dichloro -1 -fluoroethane
03/05/1998WO1998008790A1 Process for producing difluoromethane
03/05/1998WO1998008789A1 Process for producing difluoromethane
03/05/1998CA2264686A1 Process for producing difluoromethane
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