| Patents for C01B 7 - Halogens; Halogen acids (5,959) |
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| 10/21/1992 | EP0509449A2 Azeotropic mixture of hydrogen fluoride and 1,1,1-trifluoro-2-chloroethane and process for purification of 1,1,1-trifluoro-2-chloroethane |
| 10/18/1992 | CA2065952A1 Process for separating hydrogen fluoride from its mixtures with 2-chloro-1,1,1-trifluoroethane |
| 10/15/1992 | WO1992017398A1 Process for the production of elementary iodine |
| 10/13/1992 | US5154911 Using a transition metal oxide/alkali metal chloride catalyst, two step process, chloridizing and oxidation |
| 10/06/1992 | CA1308230C Recovery of hydrogen fluoride from an aqueous solution containingammonium fluoride and hydrogen fluoride |
| 09/30/1992 | EP0506588A1 Process for treating gases resulting from the electrolytic production of fluor, which may contain uranium compounds |
| 09/30/1992 | EP0506050A1 Process for the preparation of hydrochloric acid purified of foreign halogen |
| 09/30/1992 | EP0500728A4 Efficient production of chlorine from hydrogen chloride |
| 09/30/1992 | CN1064849A Heat chemical process for manufacturing chlorine and alkali with enclosed circulation |
| 09/23/1992 | EP0504622A1 Process for the preparation of high concentrated hydrochloric acid from hydrochloric acid with a concentration under the azeotropic concentration |
| 09/22/1992 | CA1307798C Oxyiodination incorporating an iodine generator for the conversion of methyl iodide to iodine |
| 09/17/1992 | WO1992015519A1 Method and device for the production of hydrochloric acid |
| 09/16/1992 | EP0504028A1 Method of supplying dilute hydrofluoric acid and apparatus for use in this method for supplying the acid |
| 09/15/1992 | US5147625 Continuous hydrolysis of phosphous trichloride |
| 09/15/1992 | US5147624 Production process of chlorine |
| 09/09/1992 | CN1064253A Industrial process for separation and recovery of chlorine |
| 09/08/1992 | CA1307093C Process for the fabrication of hydrofluoric acid by reacting sulfuric acid on spath fluor in a rotating furnace |
| 09/02/1992 | EP0501933A2 Process for the purification of fluorine-containing gases |
| 09/02/1992 | EP0500728A1 Efficient production of chlorine from hydrogen chloride. |
| 08/25/1992 | US5141913 Deactivation reducing properties by immersing, in aqueous hydrochloride solution of ferric chloride |
| 08/25/1992 | US5141652 Biocidal solution of bromine chloride, water ans halogen containing stabilizer |
| 08/19/1992 | CN1063661A Process for production of phosphoric acid and hydrogen fluoride from phosphate rock and fluosilicic acid |
| 08/11/1992 | US5137700 Processes employing iodine-iodide etching solutions |
| 08/05/1992 | EP0497712A1 Process for pollution abatement relating to gaseous effluents having high oxygen content and containing chlorine derivatives |
| 08/04/1992 | CA1305848C Process for oxidizing hydrogen sulfide contained in mineral acid |
| 07/29/1992 | CN1063088A Improved spent lining recovery process |
| 07/28/1992 | CA1305600C Manufacture of high purity low arsenic anhydrous hydrogen fluoride |
| 07/23/1992 | WO1992012095A1 Production of phosphoric acid and hydrogen fluoride |
| 07/22/1992 | EP0474763A4 Recovery of chlorine from hydrogen chloride by carrier catalyst process |
| 07/15/1992 | EP0494150A1 Method and device for producing pure elemental iodine |
| 07/15/1992 | CN1017414B Industrial process for separation and recovery of chlorine |
| 07/14/1992 | CA1304910C Method for dehydrating hydrogen fluoride |
| 06/30/1992 | US5126119 Process for producing chlorine-free hydrochloric acid low in AOX |
| 06/28/1992 | CA2058359A1 Diaryl carbonate process |
| 06/23/1992 | US5124291 Contacting with high velocity gas to abrade surface, exposing fresh catalyst |
| 06/23/1992 | US5124012 Process for the desalination of sea and for obtaining energy and the raw materials contained in sea water |
| 06/16/1992 | US5122356 Process for purification of hydrochloric acid |
| 06/16/1992 | US5122282 Method for treating water and/or wastewater |
| 06/03/1992 | CN1061587A Process for separating 1, 1, 1, 2-tetrafluo-roethane |
| 06/02/1992 | US5118492 Process for the catalytic decomposition of chlorofluoro-alkanes |
| 06/02/1992 | CA1302090C Process for the production of a high temperature gaseous phase and device for this process, and its application to liquid or gaseous phases, containing solid matters and sprayablesolids |
| 05/29/1992 | CA2056243A1 Process for removing chlorate salt from aqueous alkali chloride solution |
| 05/19/1992 | US5114675 Chemical reactors with hydrogen fluoride for alkylation |
| 05/12/1992 | US5112593 Chromium Oxide Catalyst |
| 05/12/1992 | US5112580 Reactor for the production of chlorine |
| 05/06/1992 | EP0483333A1 Halogen generator |
| 04/28/1992 | US5108559 Process for purifying hydrogen fluoride |
| 04/25/1992 | CA2054031A1 A method for producing hydrochloric acid |
| 04/15/1992 | EP0480254A1 Process for purifying anhydrous hydrogen fluoride |
| 04/14/1992 | US5105011 Catalytic hydrogenation using nickel, cobalt or iron with metal iodide yields aromatic haloamines |
| 04/10/1992 | CA2052801A1 Process for the purification of anhydrous hydrogen fluoride |
| 04/02/1992 | WO1992005108A1 Alkali metal hydroxide generation system and the method therefor |
| 04/02/1992 | DE4030991A1 Purifying impure radio-iodine - to remove long-lived radionuclides by absorption, adsorption or ion exchange |
| 03/31/1992 | US5100639 Electrolytic oxidation of arsenic impurities |
| 03/24/1992 | US5097774 Method for burning halogenated hydrocarbon containing waste |
| 03/18/1992 | EP0474763A1 Recovery of chlorine from hydrogen chloride by carrier catalyst process. |
| 03/18/1992 | EP0272332B1 Process for producing chlorine |
| 03/10/1992 | US5094830 Process for removal of water and silicon mu-oxides from chlorosilanes |
| 03/10/1992 | US5094773 Azeotropes of HF and process for the separation of HF via azeotropic distillation |
| 03/03/1992 | US5093292 Chromium oxide catalyst impregnation regeneration method |
| 02/19/1992 | EP0471190A2 Method for preparation of phosphorous acid |
| 02/11/1992 | US5087432 Method for the separation of acid from acid-laden vapors |
| 02/11/1992 | US5087335 Heat exchanging, hydration with aqueous solution |
| 02/05/1992 | EP0468981A1 A process and device for desalinating sea water and for obtaining power and the raw materials contained in sea water |
| 01/28/1992 | US5084264 Absorption of molten salts including sulfur and containing dissolved oxygen, purging with steam |
| 01/22/1992 | EP0467531A1 Process for the separation of 1,1,1,2-tetrafluoroethane from mixtures thereof with hydrogen fluoride and/or 1-chloro-2,2-difluoroethylene |
| 01/18/1992 | CA2021378A1 Process for the catalytic decomposition of chlorofluoro-alkanes |
| 01/14/1992 | US5080880 Niobium Pentachloride, Niobium Pentoxide, Hydrochloric Acid |
| 01/08/1992 | EP0465243A1 Method for stabilizing treatment of catalytic activity |
| 01/08/1992 | EP0464758A1 Process for manufacturing pure hydrogen chloride |
| 01/07/1992 | CA1293857C Method of treating fluoride contaminated wastes |
| 01/07/1992 | CA1293851C Process and apparatus for contacting at least two gaseous compounds which react in particular at high temperature |
| 12/11/1991 | EP0460524A1 Process for preparing hydrogen fluoride |
| 12/04/1991 | EP0458990A1 Method of concentrating chlorine gas |
| 12/04/1991 | CN1056669A Process and apparatus for desalting of sea and obtaining of energy and materials contained in sea |
| 11/28/1991 | WO1991018433A1 Halogen generator |
| 11/19/1991 | US5066472 Hydrolysis with water vapor, recovering hydrochloric acid |
| 11/12/1991 | US5064538 Dialysis and electrodialysis |
| 11/12/1991 | CA1291860C Water scavengers for hydrochloric acid streams |
| 11/06/1991 | CN1014597B Prodn. process of chlorine |
| 11/06/1991 | CN1014596B Production process of chlorine |
| 10/17/1991 | DE4111718A1 Prepn. of potassium sulphate and hydrochloric acid - by reacting sulphuric acid, potassium chloride and hydrochloric acid soln. of potassium salts, then adding water and methanol |
| 10/16/1991 | EP0451746A2 Method for the production of fluorine containing ethane derivatives |
| 10/15/1991 | US5057242 Supported metal alkyl activated by chlorosilane |
| 10/11/1991 | CA2040109A1 Process for producing potassium sulfate and hydrochloric acid |
| 10/09/1991 | CN1055171A Extractive distillation |
| 10/02/1991 | EP0448976A2 The use of an amorphous alloy catalyst for decomposition of chlorofluorocarbons |
| 09/28/1991 | WO1991014667A1 Extractive distillation |
| 09/28/1991 | CA2078438A1 Extractive distillation |
| 09/25/1991 | EP0447993A1 Method and apparatus for discharging hydrogen from a vacuum vessel |
| 09/22/1991 | WO1991014655A1 Process for the treatment of an aqueous solution containing mainly nitric and hydrofluoric acids |
| 09/18/1991 | CN1054574A Process for purifying hydrogen fluoride |
| 09/17/1991 | US5049241 Extractive distillation |
| 09/10/1991 | US5047226 Oxidation |
| 09/03/1991 | WO1991013024A1 Process for purifying hydrogen fluoride |
| 09/03/1991 | CA2076372A1 Process for purifying hydrogen fluoride |
| 09/03/1991 | CA1288212C Process for the recovery of ammonia and fluoride values from ammonium fluoride solutions |
| 08/13/1991 | US5039383 Continuous removal of product to prevent corrosion of electrodes |
| 08/13/1991 | CA1287477C Process for the manufacture of iodine |
| 08/07/1991 | CN1053597A Process for concentrating chlorine |