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