Patents
Patents for C01B 7 - Halogens; Halogen acids (5,959)
06/2003
06/24/2003CA2092777C Process for disposing of halons or halon-containing fluorocarbons or chlorofluorocarbons
06/17/2003US6579805 In situ chemical generator and method
06/12/2003US20030108468 Preparation of largely HBr-free HCI gas and largely HBr-free aqueous HCI solution
06/11/2003EP1318101A2 Process for the production of substantially HBr-free HCl gas and a substantially HBr-free aqueous HCl-solution
06/05/2003WO2003046244A2 Generation, distribution, and use of molecular fluorine within a fabrication facility
06/04/2003EP1315422A2 Production of concentrated biocidal solutions
06/04/2003CN1110449C Process for separating & recovering hydrogen fluoride and process for producing organic compound containing fluorine
06/03/2003US6572688 Gas purification unit
05/2003
05/30/2003WO2003002454A3 High-purity fluorine gas, production and use thereof, and method for analyzing trace impurities in high-purity fluorine gas
05/29/2003US20030098038 System and method for on-site generation and distribution of fluorine for fabrication processes
05/28/2003EP1313893A2 Process for the electrolysis of technical-grade hydrochloric acid contaminated with organic substances using oxygen-consuming cathodes
05/28/2003CN2552946Y Device for recoverying useful material from chloride solution
05/22/2003WO2003042143A1 Process and plant for the heterogeneous synthesis of chemical compounds
05/15/2003WO2003040031A2 Method for producing a solid carrier for hydrochloric acid
05/14/2003EP1310475A1 Process and plant for the heterogeneous synthesis of chemical compounds
05/14/2003CN1417107A Technological process and equipment for catalytically oxidizing HCl to produce CL2
05/07/2003EP1198412A4 Energy-activated compositions for controlled sustained release of a gas
05/07/2003EP0649385B1 Manufacture of methanol for abating of greenhouse gases
05/02/2003EP1305454A1 Process and method for recovery of halogens
05/01/2003WO2003035935A2 Electrochemical half-cell
04/2003
04/29/2003US6555086 Contacting a ga of hydrogen fluoride and an organic compound with an alkali metal fluoride in hydrogen fluoride, separating a gas phase depleted in hydrogen fluoride and recovering
04/23/2003CN1412114A New process for preparing anhydrous magnesium chloride
04/23/2003CN1106205C Carbonization of halocarbons
04/22/2003US6551624 Water treatment
04/17/2003WO2003031690A2 Electrolysis cell, especially for electrochemical production of chlorine
04/17/2003WO2002045511A9 Concentrated aqueous bromine solutions and their preparation
04/16/2003EP1144311B1 Method for reducing the bromide content in an aqueous bromide-containing solution using hydrogen peroxide
04/16/2003CN1410730A Chlorine gas liquefaction technology
04/15/2003US6547861 Method and materials for purifying reactive gases using preconditioned ultra-low emission carbon material
04/09/2003EP1300362A1 Method and apparatus for producing hydrogen fluoride
04/03/2003WO2003027581A2 A process and apparatus for purifying hydrogen bromide
04/03/2003WO2003027010A1 Method for producing nitrogen trifluoride
04/03/2003CA2461536A1 A process and apparatus for purifying hydrogen bromide
04/02/2003EP1296887A1 Phosphate acidulation utilizing hf acid
04/02/2003CN1407949A Process for producing nitrogen trifluoride and use thereof
04/01/2003US6540973 Contacting gaseous hydrogen chloride (HCl) in a noncondensable gas with water or dilute HCl solution, and distilling the resulting absorbed solution in the presence of a salt having a salting-out effect to yield anhydrous HCl
03/2003
03/27/2003US20030060671 Hydro-fluoroalkane/hydrogen fluoride mixture is reacted with at least one organic compound capable of reacting with hydrogen fluoride for separation
03/27/2003US20030057161 Using chelating resins for removing copper; displacing absorbed copper by treating resins with hydrochloric acid or sulfuric acid solutions; waste from iodine recovery by copper mineralization of X-ray contrast agent production solutions
03/26/2003EP1208063B1 Process for the recovery of chlorine from iron chlorides
03/26/2003EP1133346B1 A process for the recovery of iodine from aqueous solutions containing iodinated organic compounds
03/26/2003EP1070035B1 Method for processing a product gas arising from the breakdown of 1,2-dichloroethane
03/19/2003EP1292531A1 Production of high quality aqueous acid upon the reformation of halogenated organic materials
03/19/2003EP0902725B1 Method of separating and selectively removing hydrogen contaminant from process streams
03/06/2003US20030044337 Method for treatment of coal ash, and method for desulfurization
03/06/2003US20030041734 Method for producing an ultra-low emission carbon material
03/05/2003EP1287532A2 Method for producing ?18 f]fluoride ion
03/05/2003EP1286915A1 Particulate removal in the reformation of halogenated organic materials
03/05/2003CN1102530C Process for working up reaction gasess during oxidation of HCI to chlorine
02/2003
02/20/2003WO2002055457A3 Process for purifying octafluoropropane, process for preparing the same, and use thereof
02/20/2003US20030033936 Method for removing impurities from process gas stream
02/19/2003EP1094984B1 INDUSTRIAL METHOD FOR CONTINUOUSLY MAKING A PF 5? AND HCl MIXTURE AND RESULTING MIXTURE
02/18/2003US6521803 Method for separating a mixture comprising at least an hydrofluoroalkane and hydrogen fluoride, methods for preparing a hydrofluoroalkane and azeotropic compositions
02/18/2003US6521575 Adding fluoride salt to waste solution containing fluoro-silicic acid to precipitate fluorosilicate; reuse
02/18/2003US6521199 Hydrogen fluoride(HF); ammonium fluorides used for fluorinating acid chlorides and halocarbon compounds such as chloroalkanes are regenerated and reused by reacting with HF in the presence of a liquid carboxylic acid
02/18/2003US6520099 Method for treating combustion ash of coal and method for desulfurization
02/13/2003WO2003011347A1 Stabilized bromine solutions, method of making and uses thereof for biofouling control
02/13/2003CA2455446A1 Stabilized bromine solutions, method of making and uses thereof for biofouling control
02/12/2003CN1396282A Equipment for preparing regenerated fluoride salt or alumina from waste of aluminium electrolysis
02/12/2003CN1396110A Process and equipment for recovering useful substance from solution containing chloride
02/06/2003US20030026746 Low temperature salt forming
02/06/2003US20030024396 Gas purifier system containing an ultra-low emission carbon material
02/06/2003US20030024395 Gas purifier system for removing trace impurities from a reactive fluid
02/06/2003US20030024394 Method for producing a preconditioned ultra-low emmission carbon material
02/06/2003US20030024391 Method for reducing trace impurities from a reactive fluid using preconditioned ultra-low emission carbon material
02/06/2003US20030024390 Using liquid purifying systems that contain an ultra-low emission (ULE) carbon.
02/05/2003EP1252102A4 Fluorine removal by ion exchange
01/2003
01/30/2003US20030021746 Thermal synthesis apparatus and process
01/30/2003US20030019360 Process and apparatus for separating foreign hydrogen halides from a stream of hydrogen chloride by means of absorption
01/29/2003EP1279642A2 Process for the separation of hydrogen foreign halides from a hydrogen chloride stream by means of absorption
01/29/2003CN1393418A Method for supplying fluoric acid
01/29/2003CN1393392A 改性盐酸 Modified hydrochloride
01/28/2003US6511646 Chlorine and iron oxide from iron chloride; ferrous chloride to ferric chloride by reaction with chlorine, reacting the gaseous ferric chloride with oxygen, condensing unreacted ferric chloride onto iron oxide particles
01/23/2003US20030017098 Reacting fluorine gas with ammonia gas in a gaseous phase, wherein the reaction is performed at 80 degrees C. or less in the presence of a diluting gas; used as an etching gas and cleaning gas
01/23/2003US20030017087 Process and apparatus for abatement of by products generated from deposition processes and cleaning of deposition chambers
01/23/2003US20030015683 Removing HFC-125 or HCl from a mixture of HFC-125 and HCl by distilling the mixture to remove an azeotrope-like composition of HFC-125 and HCl in the column distillate.
01/14/2003US6506418 Concentrated aqueous bromine solutions and their preparation
01/14/2003US6506352 Method for removing substances from gases
01/09/2003WO2003002454A2 High-purity fluorine gas, production and use thereof, and method for analyzing trace impurities in high-purity fluorine gas
01/09/2003WO2003002453A1 Method of chlorine purification and process for producing 1,2-dichloroethane
01/09/2003US20030009065 Azeotrope-like compositions of 1,1,1,3,3-pentafluorobutane and hydrogen fluoride
01/09/2003US20030007917 Process and apparatus for treating exhaust gas
01/08/2003EP1272425A1 Closed loop process for producing chlorine from hydrogen chloride
01/07/2003CA2101078C Regeneration of hydrochloric acid
01/03/2003WO2003000626A2 Process for the treatment of the by-products from a reaction for the production of organic compounds
01/01/2003CN1097479C Chromium catalyst and catalytic oxidation process
12/2002
12/31/2002US6500994 Purification of 1,1,1,3,3-pentafluorobutane
12/19/2002US20020192124 Reacting depleted uranium fluoride with steam to produce uranium oxyfluoride and hydrogen fluoride, reacting uranium oxyfluride with steam producing uranium oxide; and HF and O2 by-products, cooling HF and reacting with calcium carbonate
12/19/2002US20020190002 For purifying a liquid chemical; has particular applicability in semiconductor manufacturing
12/12/2002WO2002099005A1 Azeotrope-like compositions and a process for separating pentafluoroethane and hydrogen chloride
12/12/2002WO2002098792A1 Method of separating acid
12/12/2002WO2002098529A1 Azeotrope-like compositions of 1,1,1,3,3-pentafluorobutane and hydrogen fluoride
12/12/2002US20020187084 Such (reagent) gases discharged from atomic layer deposition (ALD), by contacting the reagent gases with a "sacrificial" material having a high surface area kept under the same reaction conditions
12/05/2002US20020178913 Helium recovery process
12/03/2002US6488819 Process and apparatus for chemical conversion
11/2002
11/21/2002WO2002092542A1 Environmentally safe alkylation of aliphatic and aromatic hydrocarbons with olefins using solid hf-equivalent catalysts
11/21/2002US20020173684 Environmentally safe alkylation of aliphatic and aromatic hydrocarbons with olefins using solid HF-equivalent catalysts
11/21/2002US20020173681 Regeneration of onium fluoride-HF adducts
11/21/2002US20020172640 Process for producing chlorine
11/21/2002CA2446979A1 Environmentally safe alkylation of aliphatic and aromatic hydrocarbons with olefins using solid hf-equivalent catalysts
11/14/2002WO2002090252A1 Method of increasing the efficiency of a gasification process for halogenated materials
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