Class 423/566.3 - Sulfide of alkaline earth metal

Subclass of Class 423 - Chemistry of inorganic compounds
Definition: Product or process in which the compound is a sulfide of
No. of patents: 24
Last issue date: 08/10/2010

Number	Title	Issue Date
7771700	Sorbents for removal of mercury from flue gas cross reference to related applications Systems are disclosed for making and using micro-porous particulates at least partially composed of metal sulfides, particularly alkaline earth metal and transition metal sulfides, as sorbents for removal of mercury from flue gas. Calcium sulfide micro-porous powder...	08/10/2010
7364716	Surface modified nanoparticle and method of preparing same The present disclosure relates to a nanoparticle containing at least one metal sulfide nanocrystal having a surface modified with a carboxylic acid, wherein the carboxylic acid has at least one aryl group. The present disclosure also describes a method of preparing ...	04/29/2008
7229602	Method of preparing metal chalcogenide particles A method of preparing metal chalcogenide particles. The method comprising the step of reacting an amine and metal complex precursors. The metal complex precursors comprising a chalcogenide and an electrophilic group. The reaction forming metal chalcogenide particles...	06/12/2007
7101520	High luminescence phosphor particles and methods for producing the particles Methods for producing metal/metalloid oxide particles comprise rare earth metals herein include reacting a reactant stream in a gas flow. The reactant stream includes a rare earth metal precursor and an oxygen source. A collection of particles comprising metal/metal...	09/05/2006
6984368	Process for preparing calcium thiosulfate solution An efficient process to produce calcium thiosulfate (CaS2O3) from lime, sulfur and oxygen is described. By selecting appropriate process conditions such as mole ratios of lime to sulfur, temperature and pressure of the reaction process and the ...	01/10/2006
6379585	Preparation of sulphides and selenides Sulphides and selenides are prepared by dissolving sulphur or selenium in an aqueous or non-aqueous solution of hydrazine hydrate. The solution is combined with a solution of an appropriate cation to precipitate the corresponding sulphide or selenide. Sol...	04/30/2002
6337058	Process for producing calcium sulfide A process and apparatus for producing calcium sulfide is provided comprising a container housing one or more drums, each drum having a substantially horizontal longitudinal center axis and containing one or more screw conveyors therein. Multiple drums are...	01/08/2002
6303097	Process for the preparation of metal sulphides A process for the preparation of metal sulphides includes reacting corresponding metal oxides at temperatures between 500 and 1500° C. in a stream of gaseous CS2 characterized in that the CS2 is generated from elementary carbon and ...	10/16/2001
6217843	Method for preparation of metal intercalated fullerene-like metal chalcogenides A method for the preparation of nanoparticles of metal oxides containing inserted metal particles and to metal-intercalated and/or metal-encaged "inorganic fullerene-like" (hereinafter IF) structures of metal chalcogenides obtained therefrom is provided, ...	04/17/2001
6193908	Electroluminescent phosphor powders, methods for making phosphor powders and devices incorporating same Electroluminescent phosphor powders and a method for making phosphor powders. The phosphor powders have a small particle size, narrow particle size distribution and are substantially spherical. The method of the invention advantageously permits the econom...	02/27/2001
6153123	Sulfur-containing phosphor powders, methods for making phosphor powders and devices incorporating same Sulfur-containing phosphor powders, methods for making phosphor powders and devices incorporating same. The powders have a small particle size, narrow particle size distribution and are substantially spherical. The method of the invention permits the cont...	11/28/2000
6024932	Method for the conversion of gypsum to elemental sulfur A process for the recovery of sulfur and carbon monoxide from metal sulfates in which the carbon monoxide is recycled as a reducing agent for reaction with the metal sulfate. Metal sulfates such as gypsum (calcium sulfate dihydrate) are processed to form ...	02/15/2000
5635147	Process of treating the gasification residue formed by the gasification of solid fuels in a fluidized bed In addition to ash and coke, the gasification residue contains alkaline earth metal sulfide and alkaline earth metal oxide because desulfuring agents have been supplied to the gasifier. At temperatures from 5° to 80° C. the gasification residue is mixed...	06/03/1997
5618507	Process for removing SO₂ from gases which contain it, with direct production of elemental sulfur A wet process of regenerative type for removing SO2 contained in combustion gases in which SO2 is caused to be absorbed by a diluted aqueous solution of BaS, with a mixed precipitate of elemental S, BaSO3 and BaSO4	04/08/1997
5455206	Corrosion resistant ceramic materials Ceramic materials which exhibit stability in severely-corrosive environments having high alkali-metal activity, high sulfur/sulfide activity and/or molten halides at temperatures of 200°-550° C. or organic salt (including SO2 and SO2	10/03/1995
5275797	Method of producing barium carbonate A method is disclosed for producing barium carbonate by adding barium sulfate to coal tar pitch maintained at a temperature of about 350° C. to about 450° C., and thereafter heating the reactants to a temperature between 700° C. to 950° C. in a second...	01/04/1994
5262143	Production of finely divided particulate siliceous material by decomposition of alkali metal silicate with sulfitic species Production of siliceous precipitates, for example sodium aluminosilicates by decomposition of an alkali metal sulfite solution with a solution of a sulfitic species such as sulfur dioxide, sulfurous acid or a salt thereof. Precipitates having excellent pr...	11/16/1993
5032374	Preparation of metal sulfides Metal sulfides are prepared by reacting a compound of the metal and an oxygen-containing anion, with a source of carbonyl sulfide. The resulting metal sulfide is not contaminated by hydrogen, as in the form of hydroxides, and is suitable for use in photol...	07/16/1991
4376647	Process for treating sulfide-bearing ores A process for removing sulfur from sulfide-bearing ores by reacting water vapor with the sulfide-bearing ore forming hydrogen sulfide while simultaneously regenerating water vapor by reacting the hydrogen sulfide with lime. Advantageously, the process occ...	03/15/1983
4348299	Method for preparing inorganic sulfides Method for preparing an inorganic sulfide material including heating at temperatures between about 800° and 1200° C. a mixture comprising at least one member of the group consisting of oxidic materials of calcium, strontium and combinations thereof with...	09/07/1982
4225571	Electrowinning of metal from sulphide ores and recovery of water soluble sulphides Process and apparatus for the electrowinning of metals from sulphide ores wherein a sulphide ore is initially leached in a water soluble sulphide solution, alkali is then added, and the resulting solution is electrolyzed so as to deposit metal at the cath...	09/30/1980
4212851	Regeneration of sulfided dolomite Dolomite which has been used to remove sulfur and/or sulfur-containing compounds from gases by chemical reactions therewith is regenerated by passing through the spent dolomite an oxidizing gas selected from oxygen, CO2 and H2 O at t...	07/15/1980
4060588	Process for removing sulfur-containing gases from waste gases Sulfur-containing compounds, particularly sulfur dioxide, are removed from stack gas streams by wet scrubbing the gases wherein an alkaline earth metal sulfate and/or sulfite are formed. Example processes are lime/limestone and Double Alkali scrubbing pro...	11/29/1977
4011299	Process for removing sulfur dioxide and nitrogen oxides from gases Process for removing sulfur dioxide and nitrogen oxides from gaseous mixtures which comprises contacting such mixtures, in the presence of a reducing agent comprising carbon monoxide, hydrogen, or mixtures thereof, with a solid reagent comprising calcium ...	03/08/1977

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Class 423/566.3 - Sulfide of alkaline earth metal