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| Number | Title | Issue Date |
| 8168154 | Start-up method for producing chlorine A start-up method of a process for producing chlorine from hydrogen chloride has a mixed gas producing step of producing a mixed gas containing chlorine from hydrogen chloride, a compressed mixed gas producing step of introducing the mixed gas into an inlet of a com... | 05/01/2012 |
| 7604791 | Recycling method system and container Nitrogen is fed into a sealed container (18) to expel oxygen (step 1) and, in such a state, the inside temperature of the container (18) is incrementally raised step by a heater built into the container (18). In sequential steps 2 through 5, Wat... | 10/20/2009 |
| 7572428 | Process for producing fluorine gas A process for producing a fluorine gas of the invention comprises a step (1) of generating a fluorine gas by sectioning the interior of a fluorine gas generation container equipped with a heating means, by the use of a structure having gas permeability, then filling... | 08/11/2009 |
| 7273772 | Method for manufacturing thin film transistor array panel The present invention relates to a method of manufacturing a thin film transistor array panel and apparatus and more particularly to an apparatus containing an in-situ fluorine generation chamber. ... | 09/25/2007 |
| 7251983 | Secondary containment system and method A pump housing that contains a pump that draws fuel from an underground storage tank containing fuel to deliver to fuel dispensers in a service station environment. The pump is coupled to a double-walled fuel pipe that carries the fuel from the pump to the fuel disp... | 08/07/2007 |
| 7163036 | Method of supplying fluorine In a method of delivering high purity fluorine to a processing system, an on-site fluorine generator supplies high purity fluorine to a fixed storage tank, from which the high purity fluorine is supplied to the processing system. To provide a back up to the fluorine... | 01/16/2007 |
| 7090752 | Fluorine separation and generation device A process and apparatus for the electrolytic separation of fluorine from a mixture of gases is disclosed. Also described is the process and apparatus for the generation of fluorine from fluorine/fluoride containing solids, liquids or gases. ... | 08/15/2006 |
| 7045111 | High yield co-production of anhydrous hydrogen bromide and sodium bisulfate A process for co-producing anhydrous hydrogen bromide and a purified bisulfate salt by (a) reacting a bromide salt with sulfuric acid to produce crude hydrogen bromide and crude bisulfate salt; (b) purifying the crude hydrogen bromide to produce anhydrous hydrogen b... | 05/16/2006 |
| 7021487 | Processing method for high pressure gas container and halogen containing gas filled in said container A metal container to be filled with a halogen containing gas, with the inner surface processed with a polishing agent. The gas has a reduced purity decline by the increase of the water content or impurities from the inner surface of the container which is absorbed b... | 04/04/2006 |
| 6955801 | High-purity fluorine gas, production and use thereof, and method for analyzing trace impurities in high-purity fluorine gas A step (1) of heating a fluoronickel compound to release a fluorine gas, a step (2) of allowing a fluorine gas to be occluded into a fluorinated compound, and a step (3) of heating the fluoronickel compound and reducing an inner pressure are conducted in a container... | 10/18/2005 |
| 6933417 | Process for vinyl chloride manufacture from ethane and ethylene with partial CHl recovery from reactor effluent A process for producing vinyl chloride monomer from ethylene and ethane having input of significant quantities of both ethane and ethylene in input streams to the affiliated reactor where hydrogen chloride in the reactor effluent is only partially recovered from the... | 08/23/2005 |
| 6921474 | Chloride melt process for the separation and recovery of zinc Process for the production of ZnCl2 from a Zn bearing primary and/or secondary material comprising the steps of reacting the Zn bearing material with a chlorinating agent such as Cl2 to convert metals into chlorides and vaporising the volatile ... | 07/26/2005 |
| 6773686 | Process for the purification and concentration of radiodide isotopes Process for the purification and concentration of isotopes which isotopes are dissolved in a dilute acidic solution and adsorbed on an (optionally) activated surface of a d10-metal whereby the isotopes are selectively desorbed by elution whereby in situ r... | 08/10/2004 |
| 6770255 | Process for chlorine recovery The specification discloses a process for recovering chlorine from a chlorinator waste. The process involves treating the chlorinator waste with oxygen in a fluidised bed under conditions which promote the conversion of metal chlorides to metal oxides and discourage... | 08/03/2004 |
| 6669904 | Stabilized bromine solutions, method of making and uses thereof for biofouling control Stabilized bromine solutions are prepared by combining a bromine source and a stabilizer to form a mixture, and then adding an oxidizer to the mixture.... | 12/30/2003 |
| 6511646 | Treatment of iron chloride from chlorination dust A process for producing chlorine and iron oxide from iron chloride (which may be generated as a by-product of the direct chlorination of titaniferous ores) comprises the steps of converting ferrous chloride to ferric chloride by reaction with chlorine, se... | 01/28/2003 |
| 6471934 | Disproportionation of sulfuryl chloride fluoride A method of preparing sulfuryl fluoride by disproportionation of sulfuryl chloride fluoride in the gas phase on activated carbon.... | 10/29/2002 |
| 6277354 | Process for the recovery of chlorine from iron chlorides The present invention provides a process for recovering the chlorine value from a particulate feed stream of metal chlorides wherein the total energy and reactant mass flow are managed to minimize the build up of deposits of solids on the reactor walls an... | 08/21/2001 |
| 6270722 | Stabilized bromine solutions, method of manufacture and uses thereof for biofouling control Stabilized bromine solutions are prepared by combining a bromine source and a stabilizer to form a mixture, adding an oxidizer to the mixture, and then adding, an alkaline source to adjust the pH of the mixture to at least 13.... | 08/07/2001 |
| 6132488 | Process of treating waste containing zinc oxide A treating method of recovering zinc in the metal state from a waste containing the zinc in the oxide state, lead, chlorine, fluorine, and water comprising a mixing process 90 of obtaining a to-be-treated mixed material 70 by mixing a steel dust 7 and a r... | 10/17/2000 |
| 6093306 | Comprehensive system for utility load leveling, hydrogen production, stack gas cleanup, greenhouse gas abatement, and methanol synthesis A comprehensive energy system is provided in which a fossil fuel-burning electric utility plant is operated in conjunction with a hydrogen production and utility load leveling unit, a CO2 recovery and methanol synthesis unit, and a Bunsen react... | 07/25/2000 |
| 5958357 | Method of producing chlorine A method of liberating or producing chlorine from hexachloroethane, the method comprising the steps of providing a body comprised of solid hexachloroethane and heating the body to a temperature sufficient to cause the solid hexachloroethane to produce hex... | 09/28/1999 |
| 5833834 | Method for generating hydrogen from HBR An electrolysis cell, fuel cell and solar reactor or conventional furnace are operated in conjunction with one another for providing hydrogen as a product, from electrolysis of hydrogen bromide.... | 11/10/1998 |
| 5811254 | Broad range total available chlorine test strip A composition, method, and test device for determining the total available chlorine concentration of a test sample are disclosed. The test device includes a test pad having a suitable carrier matrix incorporating an indicator reagent composition capable o... | 09/22/1998 |
| 5783684 | Oxidizing reagent for use in oligonucleotide synthesis Oxidizing compositions particularly for use in automated oligonucleotide synthesis containing a mixture of KI and I2 in solution, in equilibrium with KI3. One preferred composition contains 1.75% KI3 (providing 0.69% KI a... | 07/21/1998 |
| 5769924 | Method of treating aluminum with chlorine produced from chlorocarbon compounds A method of liberating or producing chlorine from hexachloroethane, the method comprising the steps of providing a body comprised of solid hexachloroethane and heating the body to a temperature sufficient to cause the solid hexachloroethane to produce hex... | 06/23/1998 |
| 5759229 | Method for recovering cobalt/manganese/bromine values from residue containing used catalyst A process for recovering valuable components of a residue from a stream of used catalyst, discharged from a plant for the liquid-phase, homogeneously catalyzed oxidation of alkylaromatic compounds under pressure, to produce polycarboxylic aromatic acids. ... | 06/02/1998 |
| 5695732 | Method for treating a halogenated organic waste to produce halogen gas and carbon oxide gas streams A method relates to treating a halogenated organic waste to produce halogen gas and carbon oxide gas streams. The method includes directing a halogenated organic waste, having a halogen-to-hydrogen atomic ratio of less than about one, into a molten metal ... | 12/09/1997 |
| 5589148 | Process for purifying halogen-containing gas There is disclosed a process for purifying a halogen-containing gas (halogen gas such as chlorine, fluorine alone or diluted with an inert gas) which comprises bringing the halogen-containing gas into contact with a purifying agent comprising a hydroxide ... | 12/31/1996 |
| 5520901 | Method for the recovery of iodine from an environment A method of removing iodine from an environment which had been previously treated with a composition containing iodine and an iodide salt is disclosed. The method involves the addition to the environment of at least one reagent which is a metal sulfite sa... | 05/28/1996 |
| 5464603 | Method of treating aqueous iodide solutions A method is provided for removing iodide from aqueous solutions in which the iodide is converted to iodine. The porous granules of the polyvalent metal chelating resin containing zirconium peroxide bound to the chelating groups thereof is contacted with t... | 11/07/1995 |
| 5457267 | Process for disposing of halons or halon-containing fluorocarbons or chlorofluorocarbons A process for disposing of bromofluorocarbons, bromochlorofluorocarbons, or mixtures of any of bromofluorocarbons, bromochlorofluorocarbons, fluorocarbons, or chlorofluorocarbons. The process comprises thermally cleaving halons, halon-containing fluorocar... | 10/10/1995 |
| 5437691 | Production of spherical shaped products of subliming substances A method for the production of spherically shaped granules of low melting point, corrosive, subliming substances which comprises melting the substance and discharging the melt through a perforated bottom receiver and into a prilling tower in the form of a... | 08/01/1995 |
| 5415803 | Concentrated bromine solutions A novel composition of matter comprises a stable solution of elemental bromine and urea in water.... | 05/16/1995 |
| 5385650 | Recovery of bromine and preparation of hypobromous acid from bromide solution A process for recovering bromine from an acidic solution containing bromide ion. Electric current is passed through the acidic solution between an anode and a cathode, thereby generating bromine by electrolysis at the anode to produce an electrolyzate con... | 01/31/1995 |
| 5356611 | Method of recovering iodine A method for recovering iodine from a composition containing iodine and/or iodide in which any iodine present is first reduced to iodide, the iodide is then separated from solution by selective anion exchange absorption, the separated iodide is eluted fro... | 10/18/1994 |
| 5266295 | Hydrogen peroxide oxidation of bromide to bromide Hydrogen bromide can be oxidized to bromine more effectively using hydrogen peroxide as the oxidant if a strong acid (e.g., sulfuric or phosphoric acid) is also present to increase the percent conversion of bromide to bromine.... | 11/30/1993 |
| 5252258 | Method of recovering and storing radioactive iodine by freeze vacuum drying process The invention provides a method of recovering and storing radioactive iodine by a freeze vacuum drying process, in which off-gas generated when spent fuel is subjected to shearing and dissolving treatments is scrubbed and, when necessary, is subjected to ... | 10/12/1993 |
| 5207999 | Generation of fluorine via thermal plasma decomposition of metal fluoride A compound MFn, where M is a metal and n is the valency of the metal and has a value between 1 and 6, is subjected to a thermal plasma at a temperature in excess of 3000 K to dissociate it into the metal and fluorine. Also present in the reacto... | 05/04/1993 |
| 4996098 | Coated cation exchange fabric and process A coated cation exchanged fabric having as its base a fluorinated cation exchange resin, oriented at least 1x, in alkali metal salt form and as its coating an unoriented or oriented melt-fabricable precursor of the same salt-form fluorinated cation exchan... | 02/26/1991 |
