| Patents for C01B 7 - Halogens; Halogen acids (5,959) |
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| 07/05/2000 | CN1258635A Concentrated hydrochloric acid preparing method and equipment by using hydrogen chloride as by product of chlorinated paraffin production |
| 06/29/2000 | WO2000037401A1 Method for separating a mixture comprising at least an hydrofluoroalkane and hydrogen fluoride, methods for preparing a hydrofluoroalkane and azeotropic compositions |
| 06/13/2000 | US6074623 Gaseous effluents of hydrogen and carbon monoxide |
| 06/08/2000 | WO2000032303A1 A process for the recovery of iodine from aqueous solutions containing iodinated organic compounds |
| 06/06/2000 | US6071488 Use of metal oxychlorides for removal of hydrogen chloride from mixed gases |
| 06/06/2000 | US6071327 Method of separating iodine gas |
| 05/31/2000 | EP0863865B1 Acid-salt metathetic process |
| 05/30/2000 | US6069291 Contacting at a temperature of at least 500 degree c. and in the presence of oxygen, the perfluoroalkanes with a catalyst aluminum oxide, zirconia, and cobalt to stabilize aluminum oxide to form hydrogen fluoride and carbon dioxide |
| 05/24/2000 | CN1052759C Fast quench reactor and method |
| 05/16/2000 | US6063356 Introducing a flow of hydrogen fluoride vapor comprising a low concentration of arsenic into an ionic purifier containing high purity water which contacts the flow of hydrogen fluoride, and dischrges high purity hydrogen fluroide |
| 05/16/2000 | CA1340993C Method and device for producing pure elemental iodine |
| 05/11/2000 | WO2000026503A1 Hydrogen sulfide abatement |
| 05/11/2000 | WO2000026162A1 Treatment of fluids with electromagnetic radiation |
| 05/10/2000 | EP0999179A2 Method for the production of hydrochloric acids with concentration above the concentration of the water/HCl azeotrope |
| 05/04/2000 | WO2000025557A1 Microwave plasma generating apparatus, method for decomposing or ganic halide, and system for decomposing organic halide |
| 05/04/2000 | DE19901550C1 Process for recovering elemental iodine from organo iodine compounds comprises chemically treating a solution containing organo iodine compounds while irradiating with UV light |
| 05/04/2000 | DE19850398A1 Verfahren zur Herstellung von Salzsäuren mit Konzentrationen über der Konzentration des Wasser/HCI-Azeotrops A process for the production of hydrochloric acids with concentrations higher than the concentration of the water / HCl azeotrope |
| 05/03/2000 | CN1252039A Hydrogen fluoride recovery |
| 04/27/2000 | DE19849671A1 Reducing silica deposits in purification and recovery of hydrochloric acid, e.g. from flue gas from refuse or special waste incinerator, involves vaporizing acid and scrubbing vapor with hydrochloric acid |
| 04/26/2000 | EP0971777A4 METHOD FOR RECOVERING ALKANOLS FROM AQUEOUS HBr SOLUTIONS |
| 04/19/2000 | EP0994090A1 Azeotropic mixture of perfluoroalkyl iodide and hydrogen fluoride, and method for isolating and purifying perfluoroalkyl iodides |
| 04/19/2000 | EP0828689A4 Metal and fluorine values recovery from fluoride salt matrices |
| 04/19/2000 | CN2374539Y Furnace hearth lower detatching graphite hydrogen chloride synthetic furnace |
| 04/05/2000 | EP0990898A1 Method of determining component concentrations in three-component mixture and method of continuous production of hydrogen fluoride using the method |
| 04/04/2000 | CA1340947C Method and device for producing pure elemental iodine |
| 03/29/2000 | CN2371178Y By-product hydrochloric acid refining purifying tower |
| 03/22/2000 | EP0925255B1 Process to produce commercial grade anhydrous hydrogen fluoride (ahf) and uranium oxide from the defluorination of uranium hexafluoride (uf 6?) |
| 03/16/2000 | WO2000014040A1 Purification of 1,1,1,3,3-pentafluorobutane |
| 03/15/2000 | EP0782557B1 Purification process for hexafluoroethane products |
| 03/14/2000 | US6036936 Process for the production of hydrogen bromide gas and device for its implementation |
| 03/09/2000 | WO2000012443A1 Method and unit for regeneration of solution for cleaning glass, method and unit for cleaning silicate glass, and cathode-ray tube |
| 03/09/2000 | DE19940104A1 Purification of 1,1,1,3,3-penta:fluoro-butane, used as a blowing agent for plastic foam, involves treatment with a solid inorganic sorption agent or diatomatic molecules capable of addition to multiple bonds |
| 03/08/2000 | EP0984078A1 Process for producing and/or recovering hydrofluoric acid and nitric acid |
| 03/08/2000 | EP0983610A1 Method and apparatus for manufacturing a micromechanical device |
| 03/07/2000 | US6033460 Reactive matrix for removing moisture from a fluorine containing gas and process |
| 03/01/2000 | CN1245773A Preparation method of chlorine |
| 02/24/2000 | DE19837041A1 Erzeugung von gebrauchsfertigen Lösungen Production of ready-made solutions |
| 02/23/2000 | EP0980283A1 Method for reducing metal ion content in a chemical compound with a dipole moment |
| 02/16/2000 | EP0979800A1 Manufacturing of ready-for-use solutions |
| 02/16/2000 | EP0979671A1 Process and apparatus for purification of chlorine gas contaminated with bromine |
| 02/10/2000 | WO2000006634A1 Supercritical fluorination |
| 02/08/2000 | US6022992 Acid-salt metathetic process |
| 02/03/2000 | WO2000005749A2 Method and apparatus for anisotropic etching |
| 02/03/2000 | DE19833548A1 Überkritische Fluorierung Supercritical fluorination |
| 02/01/2000 | US6019948 Apparatus and method for purifying boron trichloride by removal of phosgene |
| 01/26/2000 | EP0973689A1 Hydrogen fluoride recovery process |
| 01/26/2000 | EP0851835B1 Method of processing fluorine-contaminated hydrochloric acid arising from waste treatment |
| 01/20/2000 | WO2000002815A2 Method for reducing the bromide content in an aqueous bromide-containing solution using hydrogen peroxide |
| 01/20/2000 | WO2000002813A1 Process for chlorine recovery |
| 01/20/2000 | CA2336698A1 Method for reducing the bromide content in an aqueous bromide-containing solution using hydrogen peroxide |
| 01/19/2000 | EP0971777A1 METHOD FOR RECOVERING ALKANOLS FROM AQUEOUS HBr SOLUTIONS |
| 01/19/2000 | CN1241984A Derive and method for the storage transportation and production of active fluorine |
| 01/18/2000 | US6015477 Point-of-use ammonia purification for electronic component manufacture |
| 01/13/2000 | WO2000001614A1 INDUSTRIAL METHOD FOR CONTINUOUSLY MAKING A PF5 AND HCl MIXTURE AND RESULTING MIXTURE |
| 01/13/2000 | DE19830310A1 Verfahren zur Abreicherung des Bromidgehaltes aus einer wäßrigen Bromid enthaltenden Lösung unter Verwendung von Wasserstoffperoxid A method of reducing the bromide from a bromide-containing aqueous solution using hydrogen peroxide |
| 01/11/2000 | CA2066673C Method and device for producing pure elemental iodine |
| 01/05/2000 | EP0968960A1 Recycling of flux agents |
| 01/05/2000 | EP0968756A1 Method of treating metal containing mineral acids |
| 12/29/1999 | WO1999067193A1 Method for producing hydrocarbons |
| 12/22/1999 | EP0964845A2 Processes for the manufacture of 1,1,1,3,3-pentafluoropropene, 2-chloro-pentafluoropropene and compositions comprising saturated derivatives thereof |
| 12/22/1999 | EP0964830A1 Method for producing hyperazeotropic hydrochloric acid from metal chloride solutions |
| 12/21/1999 | US6004465 Recovering iodine from liquid suspension |
| 12/21/1999 | CA2087354C Process for working up a hydrogen fluoride phase from a fluorination reaction mixture |
| 12/15/1999 | EP0836536A4 On-site generation of ultra-high-purity buffered-hf for semiconductor processing |
| 12/15/1999 | EP0835169A4 On-site manufacture of ultra-high-purity hydrochloric acid for semiconductor processing |
| 12/15/1999 | EP0833705A4 On-site manufacture of ultra-high-purity hydrofluoric acid for semiconductor processing |
| 12/15/1999 | CN1047363C Method for producing oxygen and hydrogen |
| 12/14/1999 | US6001315 Breaking chemical bond in a molecule by applying waveform between two electrodes |
| 12/14/1999 | CA2157165C Column baffles for suspensions with precipitating substances |
| 12/09/1999 | DE19829592C1 Mineral acids containing metals from pickling plants are processed and recovered |
| 12/08/1999 | CN1047191C Catalyst composition and isoparaffin-olefin alkylation process |
| 12/07/1999 | US5998679 Decomposing ferric bromide to produce bromine gas and ferous bromide; reacting bromine gas with methane to glive methyl bromide and hydrogen bromide; aqueous solution of ferric hydroxide to yield methanol and regenerate ferric bromide |
| 12/02/1999 | WO1999061370A1 Particle size control in pyrohydrolysis of metal chlorides |
| 12/01/1999 | EP0766644B1 Method for removing nitrogen trichloride from raw chlorine |
| 11/30/1999 | US5994604 Mixture with solvating agent is contacted with recyclable reactive metal salt, inorganic oxide or supported metal for chemically reacting with the recyclable material to create dehalogenated hydrocarbons and halogenated inorganic |
| 11/30/1999 | CA2170657C Method of producing oxygen and hydrogen |
| 11/25/1999 | WO1999059946A1 Methods for converting lower alkanes and alkenes to alcohols and diols |
| 11/24/1999 | CN1046639C Method for deagglomerating and re-exposing catalyst in a fluid bed reactor |
| 11/23/1999 | USRE36402 Electrolysis of aqueous bromide salt solution pumped through canister housing anode and cathode while supplying direct current at first polarity, then temporarily disconnecting power to prevent deposit buildup prior to reversing polarity |
| 11/18/1999 | WO1999051556A3 Processes for the purification and use of 2,2-dichloro-1,1,1,3,3,3-hexafluoropropane and azeotropes thereof with hf |
| 11/16/1999 | US5986149 Method for recovering alkanols from aqueous HBr-solutions |
| 11/16/1999 | US5985226 Cooling and contacting mixture with ice, whereby chlorine hydrate forms on said ice; heating said ice or lowering the pressure to release chlorine gas |
| 11/09/1999 | US5980850 Recoverying hydrofluoric acid, hydrochloric acid, nitric acid, or a mixture of these acids from waste pickling liquor by pre-concentrating, heat exchanging, pyrohydrolysis, separating from the metals and absorption, condensation |
| 11/09/1999 | US5980753 Process for recovering volatile acids |
| 11/09/1999 | CA2195908C Process for nitrogen trifluoride synthesis |
| 11/04/1999 | WO1999055620A1 Reactive matrix for removing moisture from a fluorine containing gas and process |
| 10/27/1999 | CN1045947C Method for producing sulfonyl azophoska compound fertilizer |
| 10/26/1999 | US5973215 Process for separating and recovering hydrogen fluoride from mixtures |
| 10/21/1999 | DE19816708A1 Method for reconditioning of inorganic acids contaminated with metals |
| 10/14/1999 | WO1999051556A2 Processes for the purification and use of 2,2-dichloro-1,1,1,3,3,3-hexafluoropropane and azeotropes thereof with hf |
| 10/14/1999 | WO1999051555A1 Processes for the purification and use of 2-chloro-1,1,1,2,3,3,3-heptafluoropropane and azeotropes thereof with hf |
| 10/14/1999 | WO1999051554A1 Method for processing a product gas arising from the breakdown of 1,2-dichloroethane |
| 10/14/1999 | DE19815446A1 Verfahren zur Aufarbeitung eines Spaltgases aus der Spaltung von 1,2-Dichlorethan A process for working up a cracked gas from the cracking of 1,2-dichloroethane |
| 10/13/1999 | EP0949632A2 Method for preparing (F-18)-fluoride ion. |
| 10/12/1999 | US5965264 Powders providing controlled sustained release of a gas |
| 10/12/1999 | CA2099184C Process for the purification of an aqueous solution of an alkaline metal chloride to remove iodine contained herewith |
| 10/06/1999 | EP0946407A1 Device and method for the storage, transportation and production of active fluorine |
| 10/05/1999 | US5961031 Fluxless soldering |
| 09/30/1999 | WO1999049506A1 Method and apparatus for manufacturing a micromechanical device |
| 09/30/1999 | WO1999048850A1 Azeotrope-like compositions of difluoromethane and chlorine |