Class 423/486 - Utilizing an element as reactant

Subclass of Class 423 - Chemistry of inorganic compounds
Definition: Processes wherein at least one of the reactants which forms
No. of patents: 38
Last issue date: 10/28/2008

Number	Title	Issue Date
7442363	Hydrogen iodide manufacturing method and hydrogen iodide manufacturing apparatus A hydrogen iodide manufacturing method which includes a step of producing aqueous solution of hydrogen iodide and sulfuric acid by causing iodine-containing aqueous solution and sulfur dioxide to react with each other in a pressurized condition. The pressurized cond...	10/28/2008
7144568	Method and device for carrying out a reaction in liquid medium with gas evolution Described is a process and a device for carrying out a reaction in liquid medium during which evolution of gas occurs. The process can be applied in particular to a reaction employing a peroxide such as hydrogen peroxide and, in particular, to the reduction of chlor...	12/05/2006
7070751	Production of gaseous chloramine The present invention provides a reactor for the gas-phase reaction of commercially available gases in the presence of an inert carrier gas to form product gas. The reactor has a streamlined, compact configuration and at least one solids collection and removal syste...	07/04/2006
6884428	Use of reinforced foam implants with enhanced integrity for soft tissue repair and regeneration A biocompatible tissue repair stimulating implant or “scaffold” device is used to repair tissue injuries, particularly injuries to ligaments, tendons, and nerves. Such implants are especially useful in methods that involve surgical procedures to repair injuries ...	04/26/2005
6827856	Process for the recovery of copper from aqueous solutions containing iodinated organic compounds The present invention relates to a process for recovering copper from solutions from the recovery of iodine from industrial wastes from the production of ionic and non-ionic iodinated X-ray contrast agents by use of chelating resins suitable for removing copper from...	12/07/2004
6602419	Process for the recovery of iodine from aqueous solutions containing iodinated organic compounds A process for the recovery of iodine from mother liquors or wastes containing iodinated organic compounds, by mineralisation of organic iodine and subsequent transformation of the formed iodide into elementary iodine, characterized in that the aqueous sol...	08/05/2003
6521199	Regeneration of onium fluoride-HF adducts Hydrogen fluoride adducts and ammonium fluorides are used for fluorinating acid chlorides and halocarbon compounds such as chloroalkanes or chloronated ethers. The used adducts can be regenerated and then reused in the fluorination reactions....	02/18/2003
6355222	Manufacture of hydrogen bromide gas A process for the production of hydrogen bromide gas by direct combustion of bromine in hydrogen involves carrying out the combustion reaction in an apparatus chamber made of impregnated graphite, a chamber outlet composed of a cylindrical segment dispose...	03/12/2002
6036936	Process for the production of hydrogen bromide gas and device for its implementation A process for the production of hydrogen bromide gas by direct combustion of bromine in hydrogen involves carrying out the combustion reaction in an apparatus chamber made of impregnated graphite and a cooling zone composed of a steel jacket in which are ...	03/14/2000
5908606	Method for producing hydrogen halide and oxygen The present invention provides a process for producing hydrogen halide and oxygen by a stable chemical reaction for a long time. In this method, hydrogen halide and oxygen are produced by reacting water and halogen as represented with the following formul...	06/01/1999
5853690	Method for decomposing water using an activated carbon catalyst Activated carbon is effective as a catalyst for water decomposition when it is coated with a heat-resistant, oxidation-resistant film. The heat-resistant, oxidation-resistant film is formed from an inorganic material such as ceramic or metal, and/or an or...	12/29/1998
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
5674464	Desulphurization of waste gases The present invention relates to a process for the removal of sulphur dioxide from waste gases which process comprises contacting a waste gas containing sulphur dioxide with an aqueous solution containing sulphuric acid, hydrogen bromide and bromide to fo...	10/07/1997
5547653	Carbonization of halocarbons Halocarbon is carbonized at a temperature of at least 600° C. in the presence of excess hydrogen and the absence of water to obtain carbon and anhydrous haloacid as the primary reaction products....	08/20/1996
5433828	Method for the removal of hydrogen sulfide and/or carbon disulfide from waste gases The invention relates to a process for removing hydrogen sulfide (H2 S) and/or carbon disulfide (CS2) from exhaust gases. These exhaust gases are brought into contact with water and bromine so that H2 SO4 and HB...	07/18/1995
5411641	Electrochemical conversion of anhydrous hydrogen halide to halogen gas using a cation-transporting membrane The invention relates to a process for electrochemically converting anhydrous hydrogen halide, such as hydrogen chloride, hydrogen fluoride, hydrogen bromide and hydrogen iodide, to essentially dry halogen gas, such as chlorine, fluorine, bromine and iodi...	05/02/1995
4997533	Process for the extracting oxygen and iron from iron oxide-containing ores Oxygen and metallic iron are produced from an iron oxide-containing mineral, such as ilmenite, by extracting iron from the mineral with hydrochloric acid, separating solid residue from the resulting solution and drying same, electrolyzing the separated, i...	03/05/1991
4990321	Method for recovering hydrobromic acid and methanol A method for recovering hydrobromic acid and methanol from a filtrate obtained by brominating bisphenol A in a methanol solvent and filtering off the resulting brominated bisphenol A, which comprises adding water to the filtrate, followed by distillation ...	02/05/1991
4800003	Production of magnesium metal from magnesium containing materials A process for the production of Mg metal from impure Mg-containing materials is disclosed. The process comprises the steps of reacting a slurry of impure Mg-containing material with a hot HCl-containing gas stream to produce an impure MgCl2 slu...	01/24/1989
4743347	Production of pure MgCl₂ solution suitable for the production of magnesium metal from an impure magnesite ore or concentrate A process for producing a substantially pure, concentrated MgCl2 solution suitable for subsequent molten salt electrolysis to magnesium metal from an impure magnesite ore or concentrate is disclosed. The process comprises the steps of calcining...	05/10/1988
4678654	Process for production of chlorine dioxide A mixture of sulfuric acid and hydrochloric acid essentially free from dissolved sulfur dioxide to be used in a chlorine dioxide reactor is produced by reacting chlorine and sulfur dioxide in at least two reaction zones. In the bottom of a primary reactio...	07/07/1987
4678653	Process for preparing chlorine dioxide A process for production of chlorine dioxide and chlorine by reacting sodium chlorate with chloride ions and sulfuric acid where the chlorine ions partly are obtained from hydrochloric acid is described. In the process chlorine obtained as a by-product is...	07/07/1987
4515762	Process for processing waste gases resulting during the production of silicon Waste gases resulting from the production of silicon in connection with the ormation or decomposition of chlorosilanes, which gases always contain hydrogen chloride, can be worked up without removal of the hydrogen chloride. For this purpose, the waste gas...	05/07/1985
4508593	Process for recovery of sulfur dioxide liberated in the chemical pulping of lignocellulosic material A process is provided for the recovery of sulfur dioxide liberated in the chemical pulping of lignocellulosic material, which comprises (1) collecting sulfur dioxide-containing gas emitted during the pulping and separating it into at least two portions; (2) co...	04/02/1985
4464351	Process for the thermal destruction of solid metable halogenated waste with resultant production of hydrogen halide therefrom A process for the thermal destruction of heavy halogenated wastes in a hydrogen/oxygen flame which process comprises passing a mixture of heavy halogenated wastes in the vapor phase and a carrier gas of hydrogen or hydrogen-rich hydrocarbon through burnin...	08/07/1984
4460444	Hydriodic acid-anode-depolarized hydrogen generator Hydrogen is recovered from aqueous hydriodic acid in the presence of sulfuric acid, in an electrolysis cell having an anode and cathode compartment separated by a hydrogen ion permeable membrane, by electrochemically liberating iodine in the anode compart...	07/17/1984
4393035	Chlorine dioxide production using mixed hydrochloric and sulfuric acid feed A chlorine dioxide generating process is described wherein chlorine formed with the chlorine dioxide is used to form acid reactant for the chlorine dioxide generating process by reaction with sulphur dioxide and water. The substantial evaporation of the w...	07/12/1983
4393036	Production of mixed sulfuric and hydrochloric acid feed and chlorine dioxide generation therewith A mixture of hydrochloric acid and sulphuric acid for use as a feed to a chlorine dioxide generator to provide reactant chemicals therefor is formed by the reaction of chlorine, sulphur dioxide and water. The reaction is effected in the presence of excess...	07/12/1983
4357309	Gaseous reagent generator An apparatus and method for generating on demand a gaseous product from a liquid phase reaction of one reactant in the solid phase at ambient room conditions and another reactant in the liquid phase at ambient room conditions. The reactants preferably are...	11/02/1982
4337237	Catalytically increasing the obtainable concentration of halogen in water When halogen is bubbled into a body of water in the presence of catalysts of graphitized carbon, ruthenised titanium, platinised titanium or mixtures thereof, hydrohalic acid is formed at higher concentrations than obtained by water by itself....	06/29/1982
4215095	Process for the incineration of chlorinated organic materials Molecular chlorine level in flue gases from incineration of chlorinated organic materials is reduced by injecting into the incinerator's quench zone an amount of a C1 -C4 hydrocarbon which depends on the amount of air fed into the co...	07/29/1980
4199533	Conversion of methane A method for chemically converting methane gas into higher molecular weight hydrocarbons by using chlorine gas as a recyclable, active catalyst....	04/22/1980
4107267	Process for treating waste hydrochloric acid A process for regenerating waste acid, such as waste hydrochloric acid pickling liquor by producing aqueous hydrochloric acid of pickling concentration and generating iron oxide including that of pigment grade, comprises the steps of (1) concentrating the...	08/15/1978
4105755	Hydrogen production The production of hydrogen by reacting an ash containing material with water and at least one halogen selected from the group consisting of chlorine, bromine and iodine to form reaction products including carbon dioxide and a corresponding hydrogen halide...	08/08/1978
4084024	Process for the production of silicon of high purity A process is provided for the low cost, high volume production of polycrystalline high purity silicon by a vapor phase reduction of a halosilane, with hydrogen, the resulting polycrystalline silicon being particularly suited for use in the production of s...	04/11/1978
3996118	Method for promoting reduction-oxidation of electrolytically produced gases Gaseous products which tend to form at the anode or cathode of an electrolytic or electrochemical system in which the electrolyte is an aqueous medium may be converted into a reduction-oxidation reaction product through the action of a Contacogen. In such...	12/07/1976
3995016	Process for thermochemical cleavage of water into hydrogen and oxygen A process for the production of hydrogen and oxygen by the cleaving of water which involves the steps of (a) reacting water vapor and iodine vapor in the presence of cuprous iodide at a temperature of 125° to 450° C. to form hydrogen iodide and a solid ...	11/30/1976
3961023	Process for the production of cyanogen chloride and hydrogen chloride Cyanogen chloride and hydrogen chloride are produced by reacting hydrogen cyanide and chlorine, separating from the gaseous mixture on the one hand hydrogen chloride and on the other hand cyanogen chloride which in a given case can also contain chlorine, ...	06/01/1976

PatentStorm

Did You Know...

PatentStorm News

Class 423/486 - Utilizing an element as reactant