Patents
Patents for C01B 7 - Halogens; Halogen acids (5,959)
06/1995
06/28/1995EP0568670A4 Regeneration of hydrochloric acid.
06/27/1995US5427757 Wet processing, separation, recovering
06/27/1995US5426944 Expanding electronic semiconductor grade chemical through an orifice in a condenser; withdrawing portion of vapor phase; concentrating impurities in liquid phase
06/24/1995CA2114388A1 Method for cooling gases containing naf and hf
06/22/1995WO1995016740A1 Hydrogen fluoride composition
06/20/1995US5426254 Process for the separation of hydrogen fluoride from its mixtures with 1,1,1-trifluoro-2-chloroethane
06/18/1995CA2137314A1 Process and facility for the purification of an aqueous alcaline metal chloride solution
06/07/1995EP0500728B1 Efficient production of chlorine from hydrogen chloride
06/06/1995US5421964 Process for separating HCl and halocarbons
06/06/1995CA2021315C Plasma removal of unwanted material
05/1995
05/31/1995EP0655083A1 Municipal solid waste disposal process
05/24/1995CN1102850A Isoparaffin-olefin alkylation
05/23/1995US5417955 Mixing with sulfuric acid to produce ferrous sulfate; oxidation
05/16/1995US5415803 Elemental bromine, urea, water
05/09/1995US5413682 Recovering ammonium fluoride from solution with ammonium hydroxide by electrolysis
05/03/1995EP0650506A1 Process for the thermal recycling of waste pvc with the recovery of heat and anhydrous hydrogen chloride.
05/03/1995CN1028322C Process for separating 1,1,1,2-tetrafluoroethane
05/02/1995US5411726 Process for purifying hydrogen fluoride
04/1995
04/26/1995EP0649385A1 System for energy storage, hydrogen production and the manufacture of methanol for abating of greenhouse gases
04/26/1995EP0649337A1 Desulphurisation of waste gases.
04/13/1995DE4334212A1 Process for the recovery of valuable materials in the work-up of polyvinyl chloride
04/12/1995EP0458990B1 Method of concentrating chlorine gas
04/11/1995US5405535 Method of removing metal impurity
03/1995
03/28/1995US5401876 Synthesis of chloroacetic acids
03/28/1995US5401820 Olefin polymers prepared by polymerization with treated alumina supported chromium
03/28/1995US5401430 Azeotropic mixture of hydrogen fluoride and 1,1,1-trifluoro-2-chloroethane
03/23/1995WO1995007752A1 Electrodialytic conversion of complexes and salts of metal cations
03/22/1995EP0474763B1 Recovery of chlorine from hydrogen chloride by carrier catalyst process
03/15/1995EP0634953A4 Gas phase degradation of organic compounds.
03/15/1995CN1100152A Process for purifying hydrogen fluoride
03/09/1995WO1995006775A1 Minimum adverse environmental impact pulp mill
03/09/1995CA2170594A1 Minimum adverse environmental impact pulp mill
03/02/1995WO1995006021A1 Organic separation from hf
03/02/1995WO1995006016A1 Isoparaffin-olefin alkylation
03/01/1995EP0640368A1 Chemical purification for semiconductor processing by partial condensation
02/1995
02/22/1995EP0639112A1 Hcl adsorbent and method for making and using same
02/22/1995EP0635072A4 Electrolytic cell assembly and process for production of bromine.
02/21/1995US5391363 Continuous purification of an off-gas composed of CO2 +HCl+COCl2
02/14/1995US5389384 Solution of halogen containing compound with stabilizer which supresses dissociation
02/08/1995CN1098382A Method for preparation of hydrocarbon calcium carbonate by acid decomposition reclaiming circulation
02/07/1995USH1417 Process for removing halogen gases from a gas stream containing carbon dioxide
02/07/1995US5387350 Method and apparatus for treating and disinfecting infectious wastes
01/1995
01/31/1995US5386076 Regeneration of HF-based alkylation catalyst
01/25/1995EP0635586A1 Process for regenerating hydrochloric acid from pickling installations
01/25/1995EP0635072A1 Electrolytic cell assembly and process for production of bromine
01/25/1995EP0634953A1 Gas phase degradation of organic compounds
01/24/1995CA1334049C Silicopyrohydrolysis treatment process for used brasques from haal-heroult electrolysis vessels
01/17/1995US5382746 Removal of light ASO in HF alkylation process
01/17/1995US5382724 Low temperature solvent extraction using hydrofluoric acid
01/11/1995CN1097178A Method for preparation of potassium sulfate by the liquid phase convertion of potassium chloride and sulfuric acid
01/05/1995WO1995000438A1 Method for separating chlorine from a mixture of gases
01/05/1995DE4320865A1 Process and apparatus for purifying hydrochloric acid contaminated by halogens such as bromine and iodine
01/04/1995CN1027313C Industrial process for separation recovery of chlorine
01/03/1995US5378324 Process and an electrolytic cell for the production of fluorine
12/1994
12/27/1994US5376164 Pressure swing adsorption process for chlorine plant offgas
12/21/1994CN1027061C Extractive distillation
12/14/1994EP0532677B1 Process for the production of elementary iodine
12/07/1994EP0626885A1 CeBr 3? CATALYST AND PROCESS FOR PRODUCING BROMINE
12/07/1994CN1096007A Method and apparatus for preparation of hydrochloric aid from methane thermal chlorination reactants
11/1994
11/30/1994EP0625957A1 Acid regeneration
11/30/1994EP0444190B1 Gas separation by semi-permeable membranes
11/30/1994CN1095688A Method for prodn. of sodium silicate
11/30/1994CN1026774C Concentration of chlorine
11/22/1994US5366949 CeBr3 catalyst
11/10/1994WO1994025419A1 AZEOTROPIC AND AZEOTROPE-LIKE COMPOSITIONS AND A PROCESS FOR SEPARATING HCl AND HALOCARBONS
11/08/1994US5363396 Halogen generator
11/08/1994US5362469 Preparation of ultrapure hydrogen fluoride
10/1994
10/27/1994WO1994024499A1 Treatment of effluent gases for pollution removal
10/26/1994CN1094015A Generator for chlorine-containing disinfecting agent
10/18/1994US5356611 Anionic and cationiuc exchanging
10/13/1994WO1994022797A1 Azeotropic mixture composed of pentafluoroethane and hydrogen fluoride and process for producing pentafluoroethane
10/13/1994WO1994022796A1 Azeotropic mixture composed of 1,1-difluoroethane and hydrogen fluoride and process for producing 1,1-difluoroethane
10/12/1994EP0619268A1 Process and installation for the production of hydrogen chloride from chlorine containing waste
10/11/1994US5354931 Process for hydrotreating an organic feedstock containing oxygen compounds and a halogen component
10/05/1994EP0618170A1 Process for producing reagent grade hydrochloric acid from the manufacture of organic isocyanates
10/05/1994EP0617696A1 Process for purifying hydrogen fluoride.
10/04/1994US5352420 Process for the purification of waste gas having a high chloride content
09/1994
09/28/1994CN1092740A Process for preparing high concentration hydrochloric acid reagent
09/22/1994DE4336404A1 Process for producing chlorine from hydrogen chloride
09/20/1994US5348722 Adsorption with silicon granules coated with gold or silver
09/15/1994WO1994020675A1 Zero discharge mill distillation, salt recovery, and water management
09/15/1994WO1994020412A1 Hydrogen fluoride recovery process
09/15/1994WO1994020411A1 Process for removal of iodine from a gaseous stream
09/15/1994CA2157472A1 Hydrogen fluoride recovery process
09/15/1994CA2155439A1 Zero discharge mill distillation, salt recovery, and water management
09/13/1994US5346684 Recovery of anhydrous hydrogen fluoride from depleted uranium hexafluoride
09/07/1994EP0447448B1 Method for purification of acids from materials comprising acid and salt
09/01/1994WO1994019299A1 Improved process for manufacture of fluoroaromatics
09/01/1994WO1994019090A1 Gas phase degradation of organic compounds
09/01/1994DE4305964A1 Process for the multi-stage thermal treatment of composite material for the purpose of utilisation of materials and energy with low emission and low residues (recycling)
08/1994
08/18/1994WO1994018119A1 Method for scrubbing pollutants from an exhaust gas stream
08/17/1994EP0610749A1 Process for purifying hydrogen fluoride
08/17/1994EP0610748A1 Process for purifying hydrogen fluoride
08/11/1994CA2115135A1 Process for purifying hydrogen fluoride
08/11/1994CA2115120A1 Process for purifying hydrogen fluoride
08/09/1994US5336832 Recovery of HF from hydrocarbon streams
08/04/1994WO1994016988A1 Hydrogen chloride purfication process
07/1994
07/27/1994EP0608087A2 Dehydration of fluoride mixtures
07/27/1994CN1089918A System for recovering after heat of reaction heat of hydrochloric acid synthesis furnace
07/20/1994EP0606482A1 Method of removing hydrogen fluoride
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