Patents
Patents for C01B 7 - Halogens; Halogen acids (5,959)
02/2004
02/12/2004US20040026327 Composition and process for removing moisture from hydrogen halides
02/12/2004DE10235476A1 Integriertes Verfahren zur Herstellung von Isocyanaten An integrated process for the preparation of isocyanates
02/05/2004US20040024244 Integrated process for preparing isocyanates
02/05/2004US20040022720 Hydrogen halide separation
02/05/2004US20040020851 Selecting membrane that is permeable to iodine and water vapor; providing such membrane in the form of an enclosure to contain the source of iodine vapor; providing a vessel that contains a receiving medium; permeating iodine vapor
02/05/2004DE10232323A1 Production of halogen fluorides and organohalogen fluorides, useful as etchants, comprises reaction of an oxygen compound of the halogen or organohalogen compound with hydrogen fluoride or hydrofluoric acid in a non-water miscible solvent
02/04/2004CN2602008Y Heat recovery type positive pressure pattern hydrochloric acid synthesis stove
02/03/2004US6687279 Integrated dual source recycling system for chemical oxygen-iodine laser weapon systems
01/2004
01/29/2004DE10229037A1 Vorrichtung und Verfahren zur Erzeugung von Chlortrifluorid und Anlage zur Ätzung von Halbleitersubstraten mit dieser Vorrichtung Apparatus and method for generating chlorine trifluoride and apparatus for etching semiconductor substrates with this device
01/22/2004US20040015003 Withdrawning by suction with a high pressure gas; removing by-product hydrogen chloride from preparing an antioxidant triarylphosphite, use in plastic processing
01/22/2004DE10230222A1 Verfahren zur Abtrennung von Säuren aus chemischen Reaktionsgemischen mit Hilfe von Ionischen Flüssigkeiten A process for separating acids from reaction mixtures by means of ionic liquids
01/14/2004EP1165475B1 Method for separating hydrogen fluoride from its mixtures with 1,1,1,3,3-pentafluorobutane and method for making 1,1,1,3,3-pentafluorobutane
01/13/2004US6677493 Processes for the purification and use of 2-chloro-1,1,1,2,3,3,3-heptafluoropropane and zeotropes thereof with HF
01/13/2004US6677269 Environmentally safe alkylation of aliphatic and aromatic hydrocarbons with olefins using solid HF-equivalent catalysts
01/13/2004US6676917 Process for the production of hydrochloric acid and neutralized sulfates
01/13/2004US6676914 Producing storage stable, transportation stable, high purity, high quality phosphoric acid
01/13/2004US6676913 Stabilizer aluminum oxide
01/13/2004US6676809 Distillation
01/08/2004WO2004002882A1 Device and method for the production of chlorotrifluoride and system for etching semiconductor substrates using said device
01/08/2004WO2003031690A3 Electrolysis cell, especially for electrochemical production of chlorine
01/06/2004US6673264 Azeotrope-like compositions of 1,1,1,3,3-pentafluorobutane and hydrogen fluoride
01/02/2004EP1372823A1 Method for the purification of corrosive gases
12/2003
12/30/2003US6669904 Stabilized bromine solutions, method of making and uses thereof for biofouling control
12/25/2003US20030234222 Composition and process for removing moisture from hydrogen halides
12/24/2003CN1131896C 由HCl气体制备高纯度氯气的电化学加工方法 HCl gas was prepared from a high purity chlorine electrochemical machining method
12/18/2003WO2003104144A1 Method for producing highly pure anhydrous solutions containing hydrogen fluoride
12/17/2003EP1371750A1 Method of recycling fluorine using an adsorption purification process
12/11/2003US20030228989 Method of recycling fluorine using an adsorption purification process
12/10/2003CN1130246C Refining and recovering process for industrial by-product hydrogen chloride gas
12/09/2003US6660893 Hydrogen fluoride recovery process
11/2003
11/27/2003WO2003097525A1 Methods for producing chlorine from hydrogen chloride
11/20/2003US20030215382 Unwanted alkali hydroxide within the brine solution is reacted with Cl2 to form alkali chloride; H2O2 reacts with Cl2 to form HCl and O2; operation of a chloralkali cell
11/20/2003US20030213701 Supplying alkali chloride and water into electrolytic cell, reacting to form alkali hydroxide, water and oxygen are reacted to form hydrogen peroxide in presence of the alkali hydroxide; peroxidation
11/19/2003EP1242638B1 A process for the recovery of copper from aqueous solutions containing iodinated organic compounds
11/18/2003US6650059 Method of decomposing organic halide
11/18/2003US6649064 Contacting the soultion with a membrane having a hydrophilic surface containing polar groups, and facilitates filtration of particulates of the solution, a ligand is covalently linked with polar groups, ligand have affinity for metal ions
11/13/2003US20030211031 Form aqueous solution of ferrous chloride with hydrogen chloride and oxygen; water pollution control
11/12/2003EP1360469A1 Method for measuring elements in a substrate for optics, electronics or optoelectronics
11/12/2003CN1455764A Process for purifying octafluoropropane, process for preparing same and use thereof
11/06/2003US20030206846 Fluorine removal by ion exchange
11/06/2003DE20220316U1 Device for producing chlorine trifluoride for etching semiconductor substrates comprises a plasma reactor, plasma generating units for forming a plasma inside the reactor, and gas feeding for introducing gases into the reactor
11/05/2003CN1126711C Composition for removing water from halogen hydride and process
10/2003
10/30/2003WO2003089370A1 Process for purification of anhydrous hydrogen chloride gas
10/30/2003CA2482595A1 Process for purification of anhydrous hydrogen chloride gas
10/23/2003US20030196764 Compressing the gas containing the contaminant, cooling the compressed gas; further cooling the gas in a second cooling stage; returning cooled gas from the second cooling stage to the first cooling stage, and recovering condensate streams
10/22/2003CN1450976A Method and apparatus for producing hydrogen fluoride
10/22/2003CN1449992A Method and apparatus for producing nitrogen trifluoride
10/21/2003US6635997 Microwave plasma generator, method of decomposing organic halide, and system for decomposing organic halide
10/16/2003WO2003035935A3 Electrochemical half-cell
10/15/2003EP1351908A2 Process for purifying octafluoropropane, process for preparing the same, and use thereof
10/09/2003US20030189011 Process and method for recovery of halogens
10/08/2003EP1053208B1 Removal of iron chloride from chlorination dust
10/08/2003CN1447867A Process and method for recovery of halogens
10/08/2003CN1447776A Improved methods and process for iodine disinfection
10/02/2003US20030183583 Methods and processes for iodine disinfection
10/02/2003DE10203914C1 Recovery of hydrogen chloride, used directly as raw material e.g. in chlorosilane production, involves cooling waste gas from organosilane ester production from chlorosilane and alcohol and/or glycol without condensing hydrogen chloride
10/01/2003EP1347827A1 Method and device for carrying out a reaction in liquid medium with gas evolution
10/01/2003EP1212258B1 Method for a burner and a corresponding device
09/2003
09/25/2003US20030180211 Process for the reduction or elimination of NH3/HF byproduct in the manufacture of nitrogen trifluoride
09/24/2003EP1346952A2 Process for the reduction or elimination of NH3/HF byproduct in the manufacture of nitrogen trifluoride
09/24/2003CN1122006C Process for producing difluoromethane
09/24/2003CN1121992C Method and unit for regeneration of solution for cleaning glass, method and unit for cleaning silicate glass
09/24/2003CN1121980C Method for reducing the bromide content in an aqueous solution containing magnesium chloride using peroxide
09/18/2003WO2003046244A3 Generation, distribution, and use of molecular fluorine within a fabrication facility
09/17/2003EP1343376A2 Concentrated aqueous bromine solutions and their preparation
09/12/2003WO2003074424A1 A cyclic process for continuously producing potassium sulphate and potassium sulphate produced thereby
09/11/2003US20030170153 Method and apparatus for generating H20 to be used in a wet oxidation process to form SiO2 on a silicon surface
09/11/2003US20030167692 Drawing water/hydrogen halide vapors from a distillation stage of the gasification process and recycling the vapor as a reactant and/or moderator feed to a gasification reactor stage of the process
09/10/2003EP1066230B1 Processes for the purification and use of 2-chloro-1,1,1,2,3,3,3-heptafluoropropane and azeotropes thereof with hf
09/04/2003WO2003000626A3 Process for the treatment of the by-products from a reaction for the production of organic compounds
08/2003
08/28/2003WO2003070630A1 Method for drying hydrogen chloride from hydrochloric aqueous solutions
08/27/2003EP1338559A2 Method and apparatus for the production of nitrogen trifluoride
08/27/2003EP1337500A1 Hydrogen halide separation
08/27/2003CN1438183A Industrial composite sulfur dioxide preparation method
08/14/2003US20030153186 Apparatus and method using a remote RF energized plasma for processing semiconductor wafers
08/14/2003US20030152507 Method and apparatus for the production of nitrogen trifluoride
08/13/2003CN1117694C Method of hydrogen fluoride recovery
08/06/2003EP0933991A4 Powders providing controlled sustained release of a gas
08/06/2003CN1433958A Process for purifying hydrogen chloride
08/05/2003US6602433 Gas delivery system
08/05/2003US6602419 Nanofiltration before oxidation
07/2003
07/31/2003WO2003062143A1 Preparation of non-hazardous brominating reagents
07/31/2003WO2003040031A3 Method for producing a solid carrier for hydrochloric acid
07/31/2003US20030141249 Method and device for producing aqueous iodine and other halogen solutions
07/31/2003US20030141180 Applying high voltage electrical discharges
07/30/2003CN1116108C Bismuth containing catalysts
07/29/2003US6600084 Method of decomposing organic halide
07/29/2003US6599490 Dispersing solution of uranyl fluoride and carbon in hydrogen peroxide to precipitate uranyl peroxide as a microsphere containing carbon andconverting to uranium carbide microspheres
07/29/2003CA2391895A1 Method and device for producing aqueous iodine and other halogen solutions
07/15/2003US6593507 Method of decomposing organic halide
07/09/2003EP1325887A1 Process for producing the solution of a chemical product starting from the liquid phase of a chemical product
07/09/2003CN1113806C Process for preparing reagent hydrochloric acid
07/08/2003CA2222639C Metal and fluorine values recovery from fluoride salt matrices
07/03/2003WO2003027581A3 A process and apparatus for purifying hydrogen bromide
07/03/2003US20030124203 Production of concentrated biocidal solutions
07/03/2003US20030124047 Reacting fluorite with sulfuric acid; applying shear to inerior wall of reactor which is wear and corrosion resistant
07/03/2003US20030121796 In situ generation of nitrogen fluoride
07/02/2003EP0964830B1 Method for producing hyperazeotropic hydrochloric acid from metal chloride solutions
07/02/2003CN1427801A Particulate removal in reformation of halogenated organic materials
06/2003
06/25/2003CN1426375A Production of high quality aqueous acid upon reformation of halogenated organic materials
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