Class 423/601 - Arsenic (e.g., arsenite, etc.)

Subclass of Class 423 - Chemistry of inorganic compounds
Definition: Products or processes wherein the compound contains arsenic.
No. of patents: 29
Last issue date: 08/28/2007

Number	Title	Issue Date
7255962	Eulytite solid acid electrolytes for electrochemical devices Improved solid acid electrolyte materials, methods of synthesizing such materials, and electrochemical devices incorporating such materials are provided. The stable electrolyte material comprises a solid acid in a eulytine structure capable of undergoing rotational ...	08/14/2007
6849246	Solid state synthesis of lithium meta arsenite The present invention provides a novel solid state method for the synthesis of lithium meta arsenite (LiAsO2) by mixing a lithium source with arsenious trioxide under controlled conditions to obtain the lithium meta arsenite. ...	02/01/2005
6616744	Method of forming inorganic pigments The present invention provides a method of forming inorganic pigments using one or more metal alloys. Metal alloys used in the method of the invention are preferably milled to a mean particle size of less than about 10 microns, may be mixed with other met...	09/09/2003
6387276	Immobilization of inorganic arsenic species using iron A method for the remediation of arsenic is presented, comprising providing an aqueous solution of inorganic arsenic species, and passing the solution of inorganic arsenic species over a substrate comprising zero valent iron under anaerobic conditions, the...	05/14/2002
6132623	Immobilization of inorganic arsenic species using iron In a method for the remediation of inorganic arsenic species, a solution of inorganic arsenic is passed over zero valent iron under abiotic and anaerobic conditions, thereby removing the inorganic arsenic species and forming arsenic-metal co-precipitates....	10/17/2000
6093328	Method for removing toxic substances in water Arsenic and TOC are removed from drinking water or wastewaters by use of finely-divided metallic iron in the presence of powdered elemental sulfur or other sulfur compounds such as manganese sulfide, followed by an oxidation step. A premix may be produced...	07/25/2000
5972820	Methods of making stabilized crystalline alumina compositions, and alumina compositions and catalyst supports made therefrom Methods of making substantially phase-pure and thermally stable crystalline alumina compositions stabilized with an oxide of silicon, germanium, phosphorus, arsenic or a mixture thereof. Also provided are crystalline alumina compositions and catalyst supp...	10/26/1999
5877106	Stabilized crystalline alumina compositions New thermally- and hydrothermally-stable δ-alumina compositions stabilized with an oxide of silicon, germanium, phosphorus, arsenic or a mixture thereof and methods of preparation of same are provided. Also provided are catalyst supports and catalysts ma...	03/02/1999
5866014	Method for removing toxic substances in water Arsenic and TOC are removed from drinking water or wastewaters by use of finely-divided metallic iron in the presence of powdered elemental sulfur or other sulfur compounds such as manganese sulfide, followed by an oxidation step. A premix may be produced...	02/02/1999
5716680	Solventless process for forming thin, durable coatings of perfluorocarbon ionomers on various polymeric materials A novel, improved process for forming a thin, adherent coating of a perfluorocarbon ionomer on a polymeric substrate which is typically in powdered form, fibrous form, or a mixture of powdered and fibrous forms, from a colloidal dispersion of the perfluor...	02/10/1998
5618472	Compounds and methods for separation and molecular encapsulation of metal ions Anions of the formula (I): [DA5 M30-x O110-x (M'L)x ]m- (I) in which D is Na+, Ca2+ ; A is P, As, Sb, Si, Ge, or combinations thereof, M is W5+, W6+, or mixtures...	04/08/1997
5575919	Method for removing toxic substances in water Arsenic and TOC are removed from drinking water or wastewaters by use of finely-divided metallic iron in the presence of powdered elemental sulfur or other sulfur compounds such as manganese sulfide, followed by an oxidation step. A premix may be produced...	11/19/1996
5433778	Negative thermal expansion material Compounds that satisfy the general formula A1-Y4+ AY1+ AY3+ V2-X EX O7 exhibit isotropic NTE behavior above a temperature of about 100° C. Y is from about 0.0 t...	07/18/1995
5364568	Compounds and methods for separation and molecular encapsulation of metal ions Anions of the formula (I): [DA5 M30-x O110-x (M'L)x ]m- (I) in which D is Na+, Ca2+; A is P, As, Sb, Si, Ge, or combinations thereof M is W5+, W6଱, or mixt...	11/15/1994
5316752	Process for preparing mixed oxides A process for producing mixed oxides containing an alumina species in which a mixture of a hydrated alumina having a specified surface area (average crystal size), a fluid medium and a compound having the formula Mx Ay wherein M is s...	05/31/1994
5281405	Optically useful compositions and a sol-gel process for their production A sol-gel process is disclosed for preparing MTiOXO4 when M is K, Rb, Tl and/or NH4 and X is P and/or As which involves dissolving suitable compounds of M, Ti and X in stoichiometic amounts in a suitable organic liquid, and then prod...	01/25/1994
5252003	Attenuation of arsenic leaching from particulate material The specification discloses a method for the treatment of particulate materials such as soils and sludges containing arsenic compounds which comprises contacting the material with a source of iron (III) ions and a source of magnesium (II) ions to stabiliz...	10/12/1993
5072031	Layered divalent metal phosphates containing pendent substituent groups and their preparation Layered divalent metal pentavalent metallate, M(HAO4)x (RAO3)y (Z)z wherein M is divalent metal, A is a pentavalent metal, e.g. phosphorus, R is a substituent group other than H or OH, e.g., phenyl, c...	12/10/1991
5026530	Method for producing copper arsenate compositions A method of preparing copper arsenate compositions having unique advantges in lower cost and higher performance for use in preparing chromated copper arsenate wood preserving formulations. These copper arsenate compositions are insoluble copper arsenate i...	06/25/1991
4962228	Layered divalent metal phosphates containing pendent substituent groups and their preparation Layered divalent metal pentavalent metallate, M(HAO4)x (RAO3)y (Z)z wherein M is divalent metal, A is a pentavalent metal, e.g. phosphorus, R is a substituent group other than H or OH, e.g., phenyl, c...	10/09/1990
4913888	Arsenic-aluminum-phosphorus-oxide molecular sieve compositions Molecular sieve compositions having three-dimensional microporous framework structures of AsO2, AlO2 and PO2 tetrahedral oxide units are disclosed. These molecular sieves have an empirical chemical composition on an anhydr...	04/03/1990
4891197	Silicophosphoaluminates and related crystalline oxides A method for synthesizing a crystalline silicophosphoaluminate is provided. The composition has ion-exchange properties and is readily convertible to catalytically active material. The synthesis method requires an organic phase, and an aqueous phase. The ...	01/02/1990
4869735	Adsorbent for arsenic compound and method for removing arsenic compound from combustion gas Here is provided an adsorbent for adsorbing and removing an arsenic compound which becomes a catalyst poison in a selective contact reduction process for removing nitrogen oxides (NOx) from a combustion exhaust gas by the use of an ammonia as a reducing a...	09/26/1989
4566975	Method for purifying aqueous solutions The invention relates to a method for purifying aqueous solutions containing at least one impurity element from the group consisting of arsenic, phosphorus, mercury and other heavy metals and solid matter by precipitation in at least two stages with the a...	01/28/1986
4454244	New compositions Compositions conforming to the formula Ax++ By+++ (OH)2x+3y-nz Dzn-.tH2 O wherein A is a divalent metal, B is a trivalent metal, D is a polyanion, x, y, z and t are numbers...	06/12/1984
4241039	Method of removal of arsenic from a sulfuric acid solution A method of removal of arsenic from an acidic solution, in which ferrous ions contained in the solution are oxidized in the presence of high pressured oxygen and sulfuric acid to ferric ions, the solution with said ferric ions being mixed with the solutio...	12/23/1980
4126425	Gas mixer for sublimation purposes A gas mixer is disclosed which is used for mixing different gases in order to obtain a solid by sublimation or chemical reaction. The mixing is carried out in a mixing chamber having a uniform, substantially circular, cross section and a length depending ...	11/21/1978
3981970	Method for the production of a zeolite material Method for production of a zeolitic material represented by the formula: wherein R represents Na or K, x, y, z and l are numerical values of Oࣘxࣘ5, Oࣘyࣘ1, Zࣘ9 and Oࣘlࣘ1, respectively; which comprises preparing an aqueous solution by dissolvi...	09/21/1976

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Class 423/601 - Arsenic (e.g., arsenite, etc.)