Class 423/557 - Copper containing

Subclass of Class 423 - Chemistry of inorganic compounds
Definition: Products or processes in which the compound contains copper.
No. of patents: 31
Last issue date: 02/13/2007

Number	Title	Issue Date
7175819	Regeneration of cupric etchants and recovery of copper sulfate Spent, acidic solutions comprising cupric chloride and hyrdrochloric acid from the copper etching process are regenerated by a process in which the acid is subjected to distillation with sulfuric acid. In one embodiment, the process comprises (a) providing a spent e...	02/13/2007
7105136	Controlled morphogenesis of copper salts In a method for preparing copper salts from at least one cupriferous and one additional reactant, the reactants are used to prepare micro-emulsions while employing at least one block polymer, the intermediate products obtained this way are mixed and reacted together...	09/12/2006
6846346	Sulfatization process for metal extraction from sulfide ores The invention provides a hydrometallurgical process for treating metal-containing sulfide ores and concentrates, comprising reacting said metal-containing sulfide with concentrated sulfuric acid at a temperature of between about 300° C. and 400° C. in the presence...	01/25/2005
6294146	Continuous chemical reaction under continuous pressure and turbulence Continuous chemical reaction under continuous pressure and turbulence utilizing a plurality of towers in series. A reagent liquid is pumped to proximate the top of a first of a single or and plurality of towers. A reagent gas is introduced under pressure ...	09/25/2001
5776424	Two powder synthesis of hydrotalcite and hydrotalcite-like compounds with monovalen inorganic anions There is provided a method for making a monovalent inorganic anion-intercalated hydrotalcite-like material by first reacting a magnesium-containing powder and a transition alumina powder in a carboxylic acid-free, aqueous suspension to form a meixnerite ...	07/07/1998
5730951	Two powder synthesis of hydrotalcite and hydrotalcite-like compounds with polyvalent inorganic anions There is provided a method for making a polyvalent inorganic anion-intercalated hydrotalcite-like material by first reacting a magnesium-containing powder and a transition alumina powder in a carboxylic acid-free, aqueous suspension to form a meixnerite ...	03/24/1998
5728363	Two powder synthesis of hydrotalcite and hydrotalcite-like compounds There is provided an improved method for making synthetic hydrotalcite by first reacting powdered magnesium oxide with a high surface area, transition alumina in a solution or suspension to form a meixnerite-like intermediate. This intermediate is then co...	03/17/1998
5728366	Two powder synthesis of hydrotalcite and hydrotalcite-like compounds with monovalent organic anions There is provided a method for making monovalent organic anion-intercalated hydrotalcite-like materials by first reacting a magnesium-containing powder and a transition alumina powder in a carboxylic acid-free, aqueous suspension to form a meixnerite inte...	03/17/1998
5728365	Two powder synthesis of hydrotalcite and hydrotalcite-like compounds with divalent inorganic anions There is provided a method for making a divalent inorganic anion-intercalated hydrotalcite-like material by first reacting a magnesium-containing powder and a transition alumina powder in a carboxylic acid-free aqueous suspension to form a meixnerite inte...	03/17/1998
5728364	Two powder synthesis of hydrotalcite and hydrotalcite like compounds There is provided an improved method for making synthetic hydrotalcite by first reacting a divalent metal compound with a trivalent metal oxide powder in a carboxylic acid-free, aqueous solution or suspension to form an intermediate. This intermediate is ...	03/17/1998
5578286	Two powder synthesis of hydrotalcite-like compounds with divalent or polyvalent organic anions There is provided a method for making a divalent or polyvalent organic anion-intercalated hydrotalcite-like materials by first reacting a magnesium-containing powder and a transition alumina powder in an aqueous suspension to form a meixnerite intermediat...	11/26/1996
5516498	Process for the removal of sulfur dioxide from gases Process for the removal of sulphur dioxide from gases containing sulphur dioxide and oxygen, in which process these gases are brought into contact with a copper-containing acceptor which contains copper on a thermostable, inert support, the charged accept...	05/14/1996
5409685	Manufactured tin(II) sulfate granules for electrolytic coloring with metal salts A manufactured stannous sulfate granulate is suitable for electrolytically coloring anodized aluminum with metallic salts, where the granulate particles have a linear extension from 0.1 to 10 mm. Also disclosed are a process for manufacturing the same and...	04/25/1995
5310533	Production of copper compounds A method of producing copper compounds involves contacting metallic copper with oxygen or an oxygen-containing gas, with an aqueous solution consisting essentially of water in solution in which is a soluble ammonium salt NH4 X, where X is the a...	05/10/1994
4948594	Copper complexes of alpha-amino acids that contain terminal amino groups, and their use as nutritional supplements In solid form, copper complex salts of the formula: ##STR1## wherein "n" is from 1 to 5, and "Z" is an anion and "y" is the number required to electrostatically balance the set....	08/14/1990
4900561	Copper complexes of alpha-amino acids that contain terminal amino groups, and their use as nutritional supplements In solid form copper complex salts of the formula: ##STR1## wherein "n" is from 1 to 5, and "Z" is an anion and "y" is the number required to electrostatically balance the set....	02/13/1990
4724132	Continuous process for the manufacture of metal salt solutions from water-insoluble metal compounds and mineral acids A continuous process for the manufacture of a metal salt solution is described which provides more economical products with higher quality than current processes. The process is safer, both to operating personnel and to the environment, than currently use...	02/09/1988
4464344	Process for recovering non-ferrous metal values from ores, concentrates, oxidic roasting products or slags A process for recovering non-ferrous metal values from their ores, minerals, concentrates, oxidic roasting products, or slags by sulphating said starting material using a mixture comprising iron (III) sulphate and alkali metal- or ammonium sulphate as a r...	08/07/1984
4377556	Process for removing dissolved selenium values from an acidic aqueous copper sulphate solution Dissolved selenium values are removed from an acidic aqueous copper sulphate solution by treating the solution at a temperature of at least about 140° C. with a stoichiometric excess relative to the dissolved selenium of sulphur dioxide or a sulphite sol...	03/22/1983
4374808	Removal of selenium from acidic copper/nickel solutions Selenium (IV) and selenium (VI) are removed from acidic copper-nickel sulphate solutions in a two-stage process by adjusting and maintaining the sulphuric acid content of the solution in a range of 10 to 50 g/L and, in a first stage, contacting the soluti...	02/22/1983
4330508	Removal of selenium (IV) and (VI) from acidic copper sulphate solutions A process for removing dissolved selenium IV values from an acidic aqueous copper sulphate solution includes passing the solution through a tubular member in a plug flow manner and injecting sulphur dioxide or a sulphite solution into the solution as it e...	05/18/1982
4322397	Process for changing the morphology of metal sulfates Novel form of metal sulphate produced by alternate dehydration and rehydration, e.g., by cycling prismatic metal sulphate between 0° C. and 70° C., 20 minutes at each temperature, for 200 or more cycles, until a low-density powder is formed having a cor...	03/30/1982
4315915	Process for the preparation of stable copper (II) sulfate monohydrate applicable as trace element additive in animal fodders The invention relates to an improved process for the production of practically non-hygroscopic, easily grindable copper(II) sulfate monohydrate which is stable even in finely ground state and can be applied as trace element additive in animal fodders, by ...	02/16/1982
4298584	Removing carbon oxysulfide from gas streams Process for removing carbon oxysulfide from a gas stream including contacting the gas stream with a scrubbing solution containing copper sulfate buffered to an acidic pH and removing at least some of the copper sulfides produced....	11/03/1981
4251489	Process for producing a copper sulfate solution A process for extracting copper from a compact mass, such as bulk metallic copper and/or copper highly contaminated with insoluble substances, in which the mass of metallic copper is leached with a liquor containing Cu2+ ions and SO4...	02/17/1981
4251495	Process for purifying a hydrogen sulfide containing gas Process for purifying a gas containing hydrogen sulfide, optionally with carbon dioxide, particularly adapted to the purification of gases of relatively low hydrogen sulfide content, e.g. not in excess of 1% of H2 S by volume, comprising contac...	02/17/1981
4222999	Removal of selenium from sulphate solutions A process for purifying copper sulfate solution by converting contained hexavalent selenium to tetravalent selenium which is amenable to removal from solution by heating and maintaining the solution at a temperature in the range of about 135° to 220° C....	09/16/1980
4133865	Process for preparing metallic sulphates An improved process for preparing a metallic sulphate in a reaction zone from mixing of the corresponding metallic sulphide concentrates with ammonium sulphate and heating. Heating preferably includes directly contacting the mixture with products of combu...	01/09/1979
4113848	Method of producing solutions containing cuprous ions Copper is processed via solutions of copper salts, both cupric and cuprous, in acidified aqueous solutions containing organic nitriles. Methods of producting solutions of cuprous salts include reduction of cupric salts and oxidation of copper and copper s...	09/12/1978
3966890	Method of producing solutions containing cuprous ions Methods of reducing aqueous solutions of cupric sulfate to cuprous solutions by using organic nitrile compositions are disclosed. The particular nitrile used is acetonitrile and the reductant is sulphur dioxide. The method has application commercially to ...	06/29/1976
3961028	Method of producing cuprous sulfate and bisulfate solutions Method of preparing cuprous sulfate and bisulfate solutions from materials containing copper and impurities by a leaching process are disclosed. The leaching composition contains sulfuric acid, cupric ions, water and an organic nitrile. The leaching compo...	06/01/1976

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Class 423/557 - Copper containing