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| Number | Title | Issue Date |
| 8158102 | System, device, and method for mixing a substance with a liquid A system, device, and method for mixing a substance with a liquid pumps the liquid into a container of the substance to produce a solution. The container may be part of a container assembly including a port assembly for coupling with the container to produce an inle... | 04/17/2012 |
| 7727510 | Method of and apparatus for simulating a biological heap leaching process A microbiological heap leaching simulation process wherein material, representative of ore in a heap, is microbiologically leached in a housing and the temperature of the material at a plurality of locations in the housing is monitored and controlled to reduce heat ... | 06/01/2010 |
| 7494641 | Extraction process for removal of impurities from an oxidizer purge stream in the synthesis of carboxylic acid Disclosed is a process that relates to the recovery of a metal catalyst from an oxidizer purge stream produced in the synthesis of carboxylic acid, typically terephthalic acid. The process involves the addition of a wash solution to a high temperature molten dispers... | 02/24/2009 |
| 7473413 | Method for recovering metal values from metal-containing materials using high temperature pressure leaching The present invention relates generally to a process for recovering copper and other metal values from metal-containing materials through pressure leaching operations. In accordance with the various aspects of the present invention, metal-containing pregnant leach s... | 01/06/2009 |
| 7452522 | Extraction process for removal of impurities from an oxidizer purge stream in the synthesis of carboxylic acid Disclosed is a process that relates to the recovery of a metal catalyst from an oxidizer purge stream produced in the synthesis of carboxylic acid, typically terephthalic acid. The process involves the addition of a wash solution to a high temperature molten dispers... | 11/18/2008 |
| 7410632 | Extraction process for removal of impurities from mother liquor in the synthesis of carboxylic acid A method for removing impurities from a mother liquor comprising a carboxylic acid, a metal catalyst, impurities by (a) evaporating the mother liquor comprising a carboxylic acid, the metal catalyst, impurities, water and a solvent in a first evaporator zone to prod... | 08/12/2008 |
| 7390468 | Extraction process The invention relates to a method for the stabilization of the production capacity of an extraction plant extracting metals in a process, where the metal content of the feed solution varies. For the stabilization of capacity, the extraction cells and their piping ar... | 06/24/2008 |
| 7374732 | Leaching process A process for the oxidative leaching of sulphide mineral species, the method characterised by the method steps of: leaching a slurry containing the mineral species in one or more reaction vessels; circulating a stream of leach liquor to a flash cooler; flashing the ... | 05/20/2008 |
| 7371313 | On-site generation, purification, and distribution of ultra-pure anhydrous ammonia A system and method for generating, purifying, and using ultra-pure ammonia on-site, such as at a semiconductor manufacturing facility. The system includes an ammonia generation system configured to generate ammonia including carbon dioxide, water, and other impurit... | 05/13/2008 |
| 7351396 | Extraction process for removal of impurities from an aqueous mixture A method for removing impurities from an aqueous mixture or purified aqueous by extracting the aqueous mixture or purified aqueous mixture with an extraction solvent in an extraction zone to form an extract stream and the raffinate stream; and optionally separating ... | 04/01/2008 |
| 7350961 | Agitation mixer, pasteurizer, and cleaning device Dissolution of a raw material, fusion of a raw material, or treatment for enhancing the fluidity of a raw material is completed in a short time by an agitation mixer 10 comprising a casing 20 in which a flow channel allowing the passage of fluid is mou... | 04/01/2008 |
| 7309474 | Composition and process A solvent extraction composition is comprised of one or more orthohydroxyarylaldoximes and one or more othohydroxyarylketoximes, and one or more equilibrium modifiers in an amount providing a degree of modification of the orthohydroxyarylaldoximes from about 0.2 to ... | 12/18/2007 |
| 7293909 | Apparatus and method for mixing by agitation in a multichambered mixing apparatus including a pre-agitation mixing chamber An apparatus for agitation mixing comprises a casing including a flow channel through which fluid passes, an agitation body consisting of a shaft installed in the casing and connected to a motor and an agitation blade mounted on the perimeter of the shaft, a powder ... | 11/13/2007 |
| 7291295 | Method for precipitating finely divided solid particles A method for precipitation of finely divided solid particles comprising a) Dissolving a compound C in a fluid A to provide a solution A; b) Thermostatization of said solution A to a temperature ranging between −50°0 C. and 200° C.;... | 11/06/2007 |
| 7282187 | Recovery of metal values A process for selectively extracting metal values, including, uranium, thorium, scandium and zirconium, from starting materials which include the metal values. The process is particularly well suited to extracting metal and recovering metal values from tantalum/niob... | 10/16/2007 |
| 7253169 | Aza compounds, pharmaceutical compositions and methods of use The present invention relates to N-substituted cyclic aza compounds, pharmaceutical compositions comprising such compounds, and methods of their use for effecting neuronal activities. ... | 08/07/2007 |
| 7250185 | Process for reducing the concentration of undesired compounds in a composition A process for treating a composition comprising one or more undesired compounds and one or more desired compounds so as to reduce the concentration of the one or more undesired compounds is described. The process comprises the steps of (1) contacting the composition... | 07/31/2007 |
| 7223722 | Polish compositions for gloss enhancement, and method A composition and method for use in imparting or maintaining a glossy or shiny finish on a hard surface. In one embodiment, the composition comprises a base polish component or components, and at least one poly[oxyalkylene] ammonium cationic surfactant. In another e... | 05/29/2007 |
| 7217400 | Preparation of iron compounds by hydrothermal conversion An apparatus and continuous process for the conversion of one solid iron compound to another solid iron compound in a heterogeneous suspension wherein the suspension is formed by dispersing a solid starting iron compound in a liquid that is continuously fed through ... | 05/15/2007 |
| 7100994 | Producing hydrocarbons and non-hydrocarbon containing materials when treating a hydrocarbon containing formation A method for treating a hydrocarbon containing formation is provided. In one embodiment, heat from one or more heaters may be provided to at least a portion of the formation. Heat may be allowed to transfer from the one or more heaters to at least a part of the form... | 09/05/2006 |
| 7090391 | Apparatus and method for mixing by agitation in a multichambered mixing apparatus including a pre-agitation mixing chamber An apparatus for agitation mixing comprises a casing 12 including a flow channel through which fluid passes, an agitation body consisting of a shaft 14 installed in the casing 12 and connected to a motor 18 and an agitation blade 16 | 08/15/2006 |
| 7087120 | System and method for chemical decontamination of radioactive material A method for chemically decontaminating radioactive material. The method includes reducing-dissolving step for setting surface of radioactive material in contact with reducing decontamination liquid including mono-carboxylic acid and di-carboxylic acid as dissolvent... | 08/08/2006 |
| 7041152 | Method for processing elemental sulfur-bearing materials using high temperature pressure leaching The present invention relates generally to a process for the production of sulfuric acid and liberation of precious metal values from materials containing sulfur through pressure leaching operations. In accordance with various aspects of the present invention, the s... | 05/09/2006 |
| 7037482 | Solvent extraction of a halide from a aqueous sulphate solution A method of extracting a halide and sulphate from an aqueous sulphate solution, such as a zinc sulphate solution, comprises subjecting the solution to solvent extraction to extract halide and sulphate from the solution and controlling the amount of sulphate extracte... | 05/02/2006 |
| 6997518 | In situ thermal processing and solution mining of an oil shale formation An oil shale formation may be treated using an in situ thermal process. Heat may be provided to the treatment area. Fluids may be injected into the formation to remove a component within the formation. Hydrocarbons, H2, and/or other formation fluids may b... | 02/14/2006 |
| 6969466 | Purification of ammonia Highly pure aqueous solution of ammonia, typically electronics grade for use in semiconductor manufacturing is prepared by passing a solution of ammonia through at least one cation exchange resin bed to remove substantially all of the cation contaminants; subsequent... | 11/29/2005 |
| 6953557 | Process and apparatus for treating semiconductor production exhaust gases A process and an apparatus for treating exhaust gases, comprising an aeration stirring tank (5) employing an aqueous alkaline liquid, and, as a posterior stage, a gas-liquid contact device (7) and/or a packed column (11). The apparatus can remov... | 10/11/2005 |
| 6951960 | Method for removing impurities from solvent extraction solutions A method for regenerating an amine extractant used for recovery of metals involves contacting a liquid organic phase containing an amine complexed with one or more metals with an aqueous solution substantially free of chloride ions to strip the one or more metals fr... | 10/04/2005 |
| 6884911 | Material processing by repeated solvent expansion-contraction A method for repeatedly converting a solvent from a state of solvent to a state of antisolvent with relatively little loss of solvent. The method is used to allow for processing of large amounts of solute material with minimum amounts of solvent. ... | 04/26/2005 |
| 6852495 | Process of extracting nucleic acid and process of simultaneously carrying out extraction and purification of nucleic acid The present invention provides a process of extracting nucleic acid in a simple manner at a high efficiency with no use of any hazardous reagent from biological materials having required specific procedure for nucleic acid extraction, particularly from biological ma... | 02/08/2005 |
| 6843976 | Reduction of zinc oxide from complex sulfide concentrates using chloride processing An apparatus and a process for producing zinc oxide from a zinc-bearing material are provided. The process comprises the steps of leaching the complex sulfide material with hydrochloric acid, ferric chloride, and oxygen; precipitating iron from the leach solution us... | 01/18/2005 |
| 6773668 | Detergent dispenser A solid detergent dispenser for use with a dishwashing machine includes a chamber and a lid. The chamber is configured and arranged to receive a solid detergent having a particular composition. A water inlet receives water from a water source, and the water flows th... | 08/10/2004 |
| 6649205 | Solvent extraction There is described a process for the extraction of at least one relatively polar component from a material which may be naturally occuring or a synthetic mixture, the process comprising the steps of: (a) contacting the material with a solvent mixture comp... | 11/18/2003 |
| 6635232 | Method of chemically decontaminating components of radioactive material handling facility and system for carrying out the same Ozone gas having a high ozone concentration is generated by a solid electrolyte electrolytic process. An ozone solution is prepared by injecting the ozone gas into an acidic solution of pH 6 or below. The ozone solution heated at a temperature in the rang... | 10/21/2003 |
| 6608001 | Catalyst and method of making micrometer sized spherical particles A method for producing small spherical particles that are especially useful as catalysts and catalyst supports employed in chemical processes is disclosed. According to some embodiments, the method includes impregnating a porous support with a metal or me... | 08/19/2003 |
| 6537440 | Processing copper sulphide ores A method for extracting copper from a mineral feed containing copper sulphide mineral 1, which involves crushing and blending the feed 2, 6, 10 followed by leaching of the feed in an autoclave 20. The conditions in the autoclave are controlled so that the... | 03/25/2003 |
| 6504077 | Method for the decontamination of metallic surfaces A method of decontaminating a radioactively contaminated oxide on a surface. The radioactively contaminated oxide is contacted with a diphosphonic acid solution for a time sufficient to dissolve the oxide and subsequently produce a precipitate containing ... | 01/07/2003 |
| 6497849 | Synthesis of heteropolyacids This invention relates to a process for purifying a heteropolyacid which comprises: subjecting an aqueous solution comprising (i) the heteropolyacid and (ii) salt impurities to at least one liquid/liquid extraction step with an organic solvent, characteri... | 12/24/2002 |
| 6497745 | Method for processing elemental sulfur-bearing materials using high temperature pressure leaching The present invention relates generally to a process for the production of sulfuric acid and liberation of precious metal values from materials containing sulfur through pressure leaching operations. In accordance with various aspects of the present inven... | 12/24/2002 |
| 6491892 | Method for the extraction of a substance from a starting material The starting material is conveyed in an extruder through zones of high and low pressure formed by different screw elements of opposing pitch. An extractant is fed in the high pressure zones located upstream of the screw elements of opposing pitch. The ext... | 12/10/2002 |
