Patents
Patents for C01B 7 - Halogens; Halogen acids (5,959)
03/1997
03/20/1997DE19534448A1 Recovery of high purity hydrogen chloride from PVC waste
03/19/1997CN1145328A Process for producing chlorine
03/18/1997US5611840 Process for separating out hydrogen chloride
03/12/1997EP0761594A1 Process for the production of chlorine from hydrogen chloride
03/12/1997EP0761593A1 Process for the production of chlorine
03/12/1997CN1144712A Method for purification of chiorine gas
03/06/1997DE19532346A1 Continuously decomposing waste bleaching liquor
03/05/1997CN1034167C Process for purifying 1,1,1,2-tetrafluoroethane
03/04/1997US5607619 Leaching gold, silver, platinum and palladium
02/1997
02/27/1997WO1997007052A1 Azeotropes of chlorofluoroethanes with hydrogen fluoride
02/26/1997EP0759011A1 Process for extracting or recovering acids
02/26/1997CN1143603A Method for producing oxygen and hydrogen
02/18/1997US5603811 Process for the treatment of an aqueous solution mainly containing nitric acid and hydrofluoric acid
02/18/1997CA2104656C Process for the separation of hydrogen fluoride from its mixtures with 1,1,1-trifluoro-2-chloroethane
01/1997
01/29/1997EP0662859B1 Method and apparatus for cleaning a gas
01/29/1997EP0649385A4 System for energy storage, hydrogen production and the manufacture of methanol for abating of greenhouse gases.
01/28/1997US5597545 Adsorption of hydrogen fluoride and water on carbon molecular sieve, heating to remove water and hydrogen fluoride by desorption
01/22/1997EP0754163A1 Iron oxide/magnesium oxide composites and method for destruction of chlorinated hydrocarbons using such composites
01/21/1997US5595954 Method for making an HCL adsorbent
01/08/1997EP0660803B1 Process for converting hexafluoroarsenic acid or any salt thereof to a water insoluble arsenate salt which can then be rendered nonhazardous
12/1996
12/31/1996US5589148 Group 2a hydroxide, iron oxide
12/27/1996WO1996041687A1 On-site manufacture of ultra-high-purity hydrofluoric acid for semiconductor processing
12/27/1996EP0598801B1 Generation of fluorine via thermal plasma decomposition of metal fluoride
12/25/1996CN1033635C Process for the purification of gaseous hydrochloric acid
12/19/1996WO1996040374A1 Production of halogen and carbon oxide streams
12/18/1996CN1138314A Method and apparatus for preparing high purity hydrogen bromide
12/17/1996US5585085 Removal of water and/or hydrocarbons from hydrogen fluoride
12/12/1996WO1996039703A1 Producing halogenated products from metal halide feeds
12/12/1996WO1996039651A1 System and method for on-site mixing of ultra-high-purity chemicals for semiconductor processing
12/12/1996WO1996039368A1 Azeotropic or azeotrope-like compositions of hydrofluoric acid with dihaloethanes
12/12/1996WO1996039358A1 Point-of-use ammonia purification for electronic component manufacture
12/12/1996WO1996039266A1 On-site generation of ultra-high-purity buffered-hf for semiconductor processing
12/12/1996WO1996039265A1 On-site ammonia purification for semiconductor manufacture
12/12/1996WO1996039264A1 On-site manufacture of ultra-high-purity hydrochloric acid for semiconductor processing
12/12/1996WO1996039263A1 On-site manufacture of ultra-high-purity nitric acid for semiconductor processing
12/12/1996WO1996039237A1 On-site generation of ultra-high-purity buffered hf for semiconductor processing
12/12/1996DE19521200A1 Removing hydrochloric acid from dilute hydrofluoric acid
12/11/1996CN1137510A Chlorine gas supply method
12/10/1996US5582634 Contacting with aqueous washing liquid, preevaporating, recirculating part of bottom fraction, removing heavy metals from remainder and recycling to scrubber, distilling top fraction
12/05/1996WO1996038380A1 Metal and fluorine values recovery from fluoride salt matrices
11/1996
11/27/1996CN1033380C Generator for chlorine-containing disinfecting agent
11/26/1996US5578664 Methods of solubilizing iodine in aqueous medium and aqueous antiseptic composition containing iodine
11/20/1996EP0743278A1 Liquid chlorine as cooling agent in chlorine liquefaction
11/20/1996EP0743277A1 Process for producing chlorine
11/20/1996CA2176555A1 Method for the purification of chlorine gas
11/19/1996CA2176541A1 Process for producing chlorine
11/07/1996WO1996034999A1 Bromide removal
11/06/1996EP0741108A2 Method and apparatus for separating chlorine gas
11/06/1996CN2239422Y Strong heat transfering hydrogen chloride
10/1996
10/30/1996EP0739228A1 Recycling of wafer cleaning substances
10/29/1996US5569807 Isoparaffin-olefin alkylation
10/17/1996DE19514200A1 Recovery of high purity hydrogen chloride from PVC waste
10/16/1996EP0737649A2 Process for PVC disposal, preferably for extraction of cleaned and/or pure hydrogene chloride
10/09/1996EP0736508A1 Process for purifying 1,1,1,3,3-pentafluoro-2,3-dichloropropane
10/09/1996CN1132720A Process for oxidation of hydrogen chloride
10/09/1996CN1132661A Method and device for delivering hot, aggressive media
10/02/1996CN1132104A Extraction of acids and metal salts from queous solutions with diethyl dodecylphosphonate
10/01/1996US5560899 Process for separating HF from its mixtures with hydrochlorofluorocarbons 123 and/or 124
09/1996
09/19/1996WO1996028577A1 Fast quench reactor and method
09/12/1996WO1996027554A1 Process for extracting or recovering acids
09/11/1996EP0730902A1 Chlorine gas supply
09/11/1996CN1130671A Process for oxidation of hydrogen chloride
09/06/1996WO1996026893A1 Method for recovering bromine from methyl bromide
09/04/1996EP0729914A2 Method for producing oxygen and hydrogen
09/04/1996EP0649337B1 Desulphurisation of waste gases
09/03/1996US5552037 Catalytic hydrogenation of halogenated hydrocarbons to produce hydrogen halide
08/1996
08/28/1996EP0728864A2 Zero discharge pulp mill cascading water management
08/28/1996EP0728121A1 Method and apparatus for preparing high purity hydrogen bromide
08/28/1996CN1129687A Method for separating hydrogen chloride
08/27/1996US5549788 Minimal effluents discharge pulp mill with chemical recovery
08/21/1996CN1129192A Process for the oxidation of hydrogen chloride
08/21/1996CN1032584C Process and apparatus for treating copper chloride etching waste liquor
08/20/1996US5547653 Carbonization of halocarbons
08/14/1996EP0725759A1 Method for the removal of unwanted colour from hydrochloric acid
08/14/1996EP0617696B1 Process for purifying hydrogen fluoride
08/14/1996CN1128978A Method for removing unwanted color from hydrochloric acid
08/01/1996WO1996015444A3 Process for determining the equilibrium concentrations of halogen, halogenide, trihalogenide, hypohalogenite and hypohalogenic acid components in aqueous solutions
07/1996
07/31/1996CN1032418C decomposition process for ammonium chloride
07/17/1996EP0721916A1 Process for the separation of HF from hydrochloric acid
07/17/1996CN1126637A Catalysts for preparing chlorine from mydrogen chloride
07/11/1996WO1996008445A3 Process for treating an aqueous KF waste stream and for converting KF into HF and KOH
07/10/1996CN1126174A Method for prepn. of hyrobromic acid
07/09/1996US5534657 Hydrogen halide, sulfone, water catalyst
07/03/1996EP0719359A1 Minimum adverse environmental impact pulp mill
07/03/1996EP0719176A1 Electrodialytic conversion of complexes and salts of metal cations
07/02/1996US5531975 Process for the production of phosphoric acid and calcium fluoride
06/1996
06/19/1996EP0524938B1 Extractive distillation
06/19/1996CN1124717A Production of potassium sulfate by conversion process
06/13/1996WO1996017802A1 Conversion of uranium fluorides to oxides and anhydrous hydrogen fluoride by reaction with sulphuric acid
06/12/1996EP0715614A1 Organic separation from hf
06/12/1996EP0715609A1 Isoparaffin-olefin alkylation
06/12/1996EP0715601A1 Method and apparatus for recovering bromine from a liquid effluent
06/05/1996EP0714876A1 Process for the separation of hydrogen chloride
06/05/1996EP0714849A1 Production process for refined hydrogen iodide
06/05/1996DE4437138C1 Verfahren zur Aufarbeitung und Verwertung von Bortrifluorid-Katalysatorrückständen Method for processing and utilization of boron trifluoride catalyst residues
06/04/1996US5523015 Azeotropes of hydrogen fluoride with dichloromethane, difluoromethane and chlorofluoromethane
06/02/1996CA2164166A1 Process for separating out hydrogen chloride
05/1996
05/30/1996WO1996015981A1 Process for recovery of anhydrous hydrogen chloride from mixtures with non-condensable gases
05/30/1996WO1996015980A1 Process for extraction and recovery of anhydrous hydrogen chloride from mixtures with non-condensable gases
05/30/1996WO1996015846A1 Method for separating substances from a gaseous medium by dry adsorption
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