Class 423/438 - From a carbonate

Subclass of Class 423 - Chemistry of inorganic compounds
Definition: Processes in which the product is made from a compound containing
No. of patents: 28
Last issue date: 12/27/2011

Number	Title	Issue Date
8084010	Coal/coke/heavy residual oil boiler with sulfur and carbon dioxide capture and recovery A pulverized coal/coke (PC) boiler combusts carbon-based fuel with substantially pure oxygen and a flue gas recirculation stream (containing predominately carbon dioxide) at varied ratios to achieve a desired boiler temperature profile while producing captured sulfu...	12/27/2011
7960063	Hydrogen production by a thermochemical water splitting cycle A novel thermochemical cycle for the decomposition of water is presented. Along with water, hydrogen, and oxygen, the cycle involves an alkali or alkali earth metal based process intermediate and a variety of reaction intermediates. The cycle is driven by renewable ...	06/14/2011
7927574	Method for regenerating a solid reactant A method for regenerating a solid reactant includes streaming the solid reactant into an inlet port of a contact or vessel and heating the solid reactant inside the contactor vessel, streaming a purge oxidant into an oxidant port of the contactor vessel to reduce a ...	04/19/2011
7922992	Composition and method for producing carbon dioxide The invention is a method and composition for producing carbon dioxide that is based on the reaction or activation of at least one carbon-containing compound with protons. The carbon-containing compound can be in the form of a powder, an impregnated carrier (e.g. ze...	04/12/2011
7384621	Reforming with hydration of carbon dioxide fixing material Methods for converting hydrocarbon fuels to hydrogen-rich reformate that incorporate a carbon dioxide fixing mechanism into the initial hydrocarbon conversion process. The mechanism utilizes a carbon dioxide fixing material to remove carbon dioxide from the reformat...	06/10/2008
6555083	Method of preparation of sealed gas chambers A method of filling a sealed elastomer chamber (2, 6, 8) with gas is provided, wherein the chamber is filled with the gas chemically produced by thermal decomposition of a gas producing material (12, 14, 16) inside of the chamber itself using a usual mean...	04/29/2003
6524843	Process and apparatus for the treatment of carbon dioxide with carbonic anhydrase A process is disclosed for the extraction, production and purification of carbon dioxide gas. The process may also be employed for the production of aqueous and/or organic solutions of bicarbonate ions using a precursor feed stream of gas containing carbo...	02/25/2003
6491890	Method and set for continuous long-term dosing of CO2 The invention concerns a method for continuous long term dosing of CO2 in biologically used media, comprising the steps below: i) expelling an aqueous acid solution from a storage container by means of a chemical reaction which generates gas pressur...	12/10/2002
5232793	Method of and apparatus for utilizing and recovering CO₂ in combustion exhaust gas A method of recovering carbon dioxide gas from the combustion exhaust gas of fossil fuel, using a combustion equipment, wherein fuel gas is supplied to an anode chamber of a molten carbonate fuel cell and oxidizing gas is supplied to a cathode chamber of ...	08/03/1993
4776930	Process for the preparation of potassium nitrate A process is disclosed for the preparation of potassium nitrate by means of the reaction of nitric acid with potassium carbonate, wherein potassium carbonate is obtained by means of an electrochemical process....	10/11/1988
4748010	Energy conserving limestone calcining system Energy conserving limestone calcining system, including a process and apparatus in which in a first step or kiln zone limestone is heated, e.g., at 1700°-2100° F., sufficiently to achieve more than only about 50 or 60%, e.g., 75%, partial conversion the...	05/31/1988
4588567	Recovery of concentrated H₂ S from SO₂ contained in flue gas This invention is a regenerable process for producing gaseous hydrogen sulfide in concentrated form from sulfur dioxide obtained from a dilute gas source by (1) reacting the SO2 with a concentrated solution of Na2 SO3 to f...	05/13/1986
4444672	Process of making calcium acetate deicing agents and product A process of making a calcium acetate-containing solution having a pH value at room temperature between about 7 and about 8 is provided comprising reacting acetic acid with a carbonate compound, adding calcined limestone, and optionally finishing off the ...	04/24/1984
4426308	Process of making calcium acetate deicing agents A process of making a calcium acetate-containing solution having a pH value at room temperature between about 7 and about 8 is provided comprising reacting acetic acid with a carbonate compound, adding calcined limestone, and optionally finishing off the ...	01/17/1984
4426364	Removal and recovery of nitrogen oxides and sulfur dioxide from gaseous mixtures containing them A cyclic process for removing lower valence nitrogen oxides from gaseous mixtures includes treating the mixtures in a first stage with an acidic aqueous media including a peroxygen oxidant to form nitric acid and higher valence nitrogen oides and to captu...	01/17/1984
4425313	Removal and recovery of nitrogen and sulfur oxides from gaseous mixtures containing them A cyclic process for removing lower valence nitrogen oxides from gaseous mixtures includes treating the mixtures with an aqueous media including alkali metal carbonate and alkali metal bicarbonate and a preoxygen oxidant to form higher valence nitrogen ox...	01/10/1984
4377488	Process of making calcium acetate deicing agents A process of making a calcium acetate-containing solution having a pH value at room temperature between about 7 and about 8 is provided comprising reacting acetic acid with a carbonate compound, adding calcined limestone, and optionally finishing off the ...	03/22/1983
4342735	Stripping of aqueous ammonium carbonate solution In stripping ammonia and carbon dioxide from an aqueous ammonium carbonate solution including organic ammonium salts, inorganic base is introduced into the column at a point below the point of the feed introduction and above the column bottom to liberate ...	08/03/1982
4339547	Production of synthetic hydrocarbons from air, water and low cost electrical power A process for manufacturing synthetic hydrocarbons such as gasoline and/or kerosene from the synthesis of carbon dioxide and hydrogen. The carbon dioxide is obtained from the atmosphere while the hydrogen is obtained during the electrolysis of water. An i...	07/13/1982
4299809	Process for the manufacture of calcium chloride A process for the production of calcium chloride by the reaction of hydrochloric acid with calcium carbonate in the upper sealed portion of a reactor bordered on one side by a filtration sieve. The process comprises reacting the hydrochloric acid with the...	11/10/1981
4186215	Beverage carbonation arrangement An arrangement for carbonating a beverage over an extended period of time through the addition of water or beverage liquid base to a powdered or dry carbonate and acid located in a pressure chamber. A permeable surface of the chamber allows a small quanti...	01/29/1980
4083942	Process for producing metal bromides Alkali and alkaline earth metal bromides may be prepared by reacting a basic compound of an alkali or alkaline earth metal with a reducing agent in the presence of water and thereafter adding thereto stepwise alternate incremental portions of bromine and ...	04/11/1978
4031193	Process for preparing calcium fluoride from hexafluoro silicic acid Disclosed is a process for the preparation of calcium fluoride comprising reacting hexafluoro silicic acid with calcium carbonate in the presence of sulfate or aluminum ions within a pH range of between about 2 and 6 and separating the calcium fluoride pr...	06/21/1977
4017592	Process for production of aqueous hypochlorous acid solution Reactions in heterogeneous systems containing reactants in gaseous, liquid and solid phases are carried out in a tower composed of a series of superimposed reaction compartments mutually separated by horizontal shelves, through which the gaseous phase mov...	04/12/1977
3996342	Method for thermochemical production of hydrogen from water A method for the thermochemical production of hydrogen from water is disclosed in which barium iodide, carbon dioxide, ammonia and water are allowed to react with one another and give rise to barium carbonate and ammonium iodide, the ammonium iodide thus ...	12/07/1976
3957955	Process for preparation of sodium ammonium phosphate A solution of sodium ammonium phosphate is prepared by reacting monoammonium phosphate with sodium carbonate in a vertical column having vapor-liquid contact means at a temperature in the range of 150°F. up to the boiling point....	05/18/1976
3937782	Process for the production of monosilandiol A dry alkaline earth metal silicate or an alkali metal silicate is reacted with a concentrated mineral acid to form silico-formic acid and hydrogen salt. The acid and hydrogen salt is reacted with a dry alkali metal carbonate or hydroxide to produce monos...	02/10/1976
3932587	Absorption of sulfur oxides from flue gas A method is shown for removing sulfur dioxide from a hot flue gas by absorption of the sulfur dioxide in an aqueous solution or slurry containing no more than 40 wt.% of an alkali metal carbonate or bicarbonate, preferably sodium carbonate and/or sodium b...	01/13/1976

PatentStorm

Bizarre Patents

PatentStorm News

Class 423/438 - From a carbonate