Class 423/623 - Volatizing zinc

Subclass of Class 423 - Chemistry of inorganic compounds
Definition: Processes which include the step of causing a normally solid
No. of patents: 31
Last issue date: 02/23/2010

Number	Title	Issue Date
7666385	Nanostructured zinc oxide photocatalyst for visible light and manufacturing method of the same A powdered photocatalyst and manufacturing method thereof are disclosed. The manufacturing method of the photocatalytic nanopowders is achieved by the non-transferred DC plasma apparatus in an atmosphere of nitrogen at around 1 atm. The nitrogen-containing gas is us...	02/23/2010
7357910	Method for producing metal oxide nanoparticles Method for producing metal oxide nanoparticles. The method includes generating an aerosol of solid metallic microparticles, generating plasma with a plasma hot zone at a temperature sufficiently high to vaporize the microparticles into metal vapor, and directing the...	04/15/2008
7198773	Synthesis of ZnO nano-structured materials and its apparatus Disclosed are a method of fabricating ZnO nanostructures and its apparatus, and more particularly, to a method of fabricating ZnO nanostructures from Zn gas, which is produced by a reduction process between ZnO powder and graphite, on a silicon substrate, wherein va...	04/03/2007
7132783	Phosphor particles having specific distribution of average diameters Small particles provide for improved performance as phosphors especially in the production of display devices. Particles with an diameter less than about 100 nm have altered band properties that affect the emission by the particles. A collection of such small partic...	11/07/2006
7118726	Method for making oxide compounds A method of making an oxide compound, comprising subjecting a base material to a source of heat that produces a localized temperature in the range of 2,000 to 5,500 degrees Celsius that vaporizes the base material which is drawn upward above the surface of the base ...	10/10/2006
6932853	Mechanical separation of volatile metals at high temperatures A method of operating mechanical separation devices at high temperatures to separate various volatile metals, metal halides and metal oxides to produce high purity materials. ...	08/23/2005
6918309	Sample deposition method and system A method and system to deposit rapidly, accurately and efficiently liquid droplets onto a sample plate. A liquid from which the droplet is formed contains sample molecules, matrix molecules or a mixture of both sample and matrix molecules. A sample plate is position...	07/19/2005
6416862	Ultrafine particulate zinc oxide and production process thereof Ultrafine particulates of highly white zinc oxide having a reduced average particle diameter of about 15 nm to about 55 nm as measured by the BET-one point method and that has an L value of about 90 or more as measured by a Hunter-type color-difference me...	07/09/2002
5876688	Zinc oxide and a process of making it A process for preparing zinc oxide comprises introducing, into an atmosphere, an aqueous solution of a zinc salt that is thermally decomposable to zinc oxide, the atmosphere having a temperature sufficient to decompose the salt to the oxide, and recoverin...	03/02/1999
5762914	Flame-hydrolytically produced titanium dioxide mixed oxide, method of its production and its use Flame-hydrolytically produced titanium dioxide mixed oxide having a BET surface of 10 to 150 m2 /g and 1 to 30% by weight aluminum oxide or 1 to 30% by weight silicon dioxide is produced by evaporating aluminum chloride or silicon tetrachloride...	06/09/1998
5589109	Method for producing a cathode material containing silver and bismuth Solid divalent silver oxide is reacted in hot aqueous alkaline reaction medium with a solid bismuth component and a reducing agent. The reaction product comprises a novel compound containing silver, bismuth, and oxygen, which is used in making cathode pel...	12/31/1996
5582812	Process for gas phase conversion of diethylzinc to zinc oxide powder A vapor of diethylzinc or dimethylzinc is reacted with water vapor to form very small particles of depleted zinc oxide which are entrained in the gas flow. In accordance with one version of the method, a spray nozzle is used to mix liquid diethylzinc with...	12/10/1996
5582771	Method for preparing electrically-conductive needle-like zinc oxide Herein disclosed is a method for preparing electrically-conductive needle-like zinc oxide which comprises the steps of preparing a vapor mixture by admixing zinc vapor and vapor of at least one compound selected from the group consisting of dopant-forming...	12/10/1996
5560871	Method for preparing electrically-conductive zinc oxide A method for preparing electrically-conductive zinc oxide is herein disclosed, which comprises the steps of preparing a vapor mixture comprising zinc vapor and vapor of at least one member selected from the group consisting of dopant-forming metal compoun...	10/01/1996
5486347	Antiperspirant composition A composition of zirconyl hydroxy chloride and aluminum chlorhydroxide in stable solid form having improved antiperspirant efficacy when dissolved in water is made by heating a 2-20% by weight aqueous solution containing at least the aluminum chlorhydroxi...	01/23/1996
5478550	Ultraviolet-shielding agent, method for the preparation thereof and cosmetic composition compounded therewith Disclosed is a novel ultraviolet-shielding agent in a powder form consisting of particles of an inorganic material having a specified refractive index and a flaky particle configuration, such as mica, talc, sericite and the like, compositely coated with a...	12/26/1995
5474592	Method of reprocessing metallurgical residues, which contain zinc and lead Residual metallurgical materials which contain zinc and lead are reprocessed by a thermal treatment in a circulating fluidized bed. The required heat is generated in that solid carbon is combusted in the fluidized bed reactor of the circulating fluidized ...	12/12/1995
5453111	Method for separation of metals from waste stream A method for the recovery of metals including zinc, zinc oxide, iron-carbon feedstocks, lead and cadmium from industrial waste streams which entails treating the waste streams with carbon and an ammonium chloride solution, separating any undissolved compo...	09/26/1995
5356612	Antiperspirant and method of making same Antiperspirant effectiveness of basic aluminum chloride is increased by mixing it with monosilicic acid in aqueous solution. The product can be dried to a solid, and the antiperspirant effectiveness does not decrease in contact with water. The product can...	10/18/1994
5250281	Process for manufacturing a voltage non-linear resistor and a zinc oxide material to be used therefor A voltage non-linear resistor element mainly comprising ZnO, substantially free from internal defects, exhibiting an excellent current impulse withstand capability, can be manufactured by a process wherein an SiC inclusion in the starting ZnO powder is re...	10/05/1993
5208004	Method for the recovery of zinc oxide A method for the recovery of zinc oxide from industrial waste materials of various components, including zinc, lead, iron and cadmium, comprising the steps of treating the waste material with an ammonium chloride solution maintained at an elevated tempera...	05/04/1993
5162107	Method of reprocessing zinc- and lead-containing residues from metallurgical plants by means of a circulating fluidized bed system A zinc- and lead-containing residue from a metallurgical plant is reprocessed by a thermal treatment in a circulating fluidized bed system. A major part of the heat demand is satisfied by a combustion of solid carbonaceous material in the fluidized bed re...	11/10/1992
5013532	Method for recycling electric arc furnace dust This invention relates to the metallurgy of iron and particularly to the separation and recovery of metals from electric arc furnace (EAF) dusts. While the invention discloses a process for the separation and recovery applicable to zinc, lead, cadmium and...	05/07/1991
4842832	Ultra-fine spherical particles of metal oxide and a method for the preparation thereof Ultra-fine spherical particles of a metal oxide having an average particle diameter of 40 nm or smaller can be prepared by a method in which a vaporizable metal compound is vaporized and decomposed under heating to give ultra-fine particles of a metal oxi...	06/27/1989
4654077	Method for the pyrometallurgical treatment of finely divided materials Process and apparatus for pyrometallurgically treating finely divided ores, concentrates, residues, slags and like materials. The process utilizes a reactor having two co-axially extending, vertical reaction chambers. The process comprises forming within ...	03/31/1987
4595574	Method for recovering zinc from substances containing a zinc compound A method for recovering zinc from substances containing a zinc compound which comprises supplying a carbonaceous substance and a zinc compound-containing substance onto the hearth layer in a sintering apparatus, vaporizing the zinc compound in said substa...	06/17/1986
4263451	Removing carbonaceous contaminant from zinc oxide A method for removing carbonaceous impurity from zinc oxide by contacting a water slurry of contaminated zinc oxide with oxygen in a reactor at reaction conditions sufficient to produce oxide products of the carbon contaminants and passing the reactor eff...	04/21/1981
4132764	Production of carbon monoxide from carbonaceous material and zinc oxide A carbon source and zinc oxide are reacted in a reactor to form a gas consisting essentially of carbon monoxide and zinc; the zinc is separated from the gas and reoxidized in indirect heat exchange relationship with the reaction mixture of the carbon sour...	01/02/1979
4115524	Production of carbon monoxide A carbon monoxide- and zinc-containing gas is produced by the endothermic reaction of a carbonaceous material with zinc oxide. Zinc separated from the gas is in part reoxidized with air and in part reoxidized with H2 O to form zinc oxide both i...	09/19/1978
4112058	Production of carbon monoxide from carbonaceous material and zinc oxide A carbon source and zinc oxide are reacted in a reactor to form a gas consisting essentially of carbon monoxide and zinc. The zinc is separated and reoxidized in a zinc oxidizer. In the reactor and the zinc oxidizer, heat exchange means are provided for t...	09/05/1978
4108634	Process for thermally treating fine-grained solids A process for thermally treating fine-grained solids with high-oxygen gases at temperatures at which the solids can form molten and gaseous reaction products comprises carrying out the thermal treatment at least in part in a cyclone chamber. The solids, h...	08/22/1978

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Class 423/623 - Volatizing zinc