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| Number | Title | Issue Date |
| 8187561 | Processes and systems for recovering catalyst promoter from catalyst substrates Processes and systems for recovering promoter-containing compounds, for example, perrhenates, from promoter-containing catalyst substrates, for example, substrates containing precious metals, such as silver, are disclosed. The processes include contacting the substr... | 05/29/2012 |
| 7988938 | Selectively leaching cobalt from lateritic ores A heap leach process for the recovery of nickel and cobalt from a lateritic ore, said process including the steps of leaching and/or agglomerating the ore with a lixiviant that includes ferrous ions, wherein the lixiviant is able to liberate cobalt from the cobalt c... | 08/02/2011 |
| 7708961 | Method and apparatus for isolating the radioisotope Rhenium A method of isolating 186Re according to example embodiments may include vaporizing a source compound containing 185Re and 186Re. The vaporized source compound may be ionized to form negatively-charged molecules containing 185 | 05/04/2010 |
| 7381386 | 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, a metal catalyst, impurities and a solvent in a first evaporator zone to produce a vap... | 06/03/2008 |
| 7341700 | Method for recovery of metals from metal-containing materials using medium temperature pressure leaching The present invention relates generally to a process for recovering copper and other metal values from metal-containing materials using controlled, super-fine grinding and medium temperature pressure leaching. Processes embodying aspects of the present invention may... | 03/11/2008 |
| 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 |
| 7288242 | Lithium-containing complex oxide and method of producing same A lithium-containing complex oxide exhibits a high performance as a cathode active material of a lithium secondary cell or the like and having a high tap density. A granular lithium-containing complex oxide, such as lithium manganese complex oxide, is made up of “... | 10/30/2007 |
| 7255798 | Recycling of used perfluorosulfonic acid membranes A method for recovering and recycling catalyst coated fuel cell membranes includes dissolving the used membranes in water and solvent, heating the dissolved membranes under pressure and separating the components. Active membranes are produced from the recycled mater... | 08/14/2007 |
| 7217366 | Purification of ammonium metallate solutions A process for reducing the content of alkali metal impurities (e.g., potassium) in ammonium metallate solutions is described. The process involves subjecting a feed solution containing ammonium metallate and alkali metal impurities to membrane filtration. The membra... | 05/15/2007 |
| 7217406 | Lithium-manganese composite oxide granular secondary particle, method for production thereof and use thereof Granular secondary particles of a lithium-manganese composite oxide suitable for use in non-aqueous electrolyte secondary batteries showing high-output characteristics which are granular secondary particles made up of aggregated crystalline primary particles of a li... | 05/15/2007 |
| 7211237 | Solid state synthesis of lithium ion battery cathode material Single-phase lithium-transition metal oxide compounds containing cobalt, manganese and nickel can be prepared by wet milling cobalt-, manganese-, nickel- and lithium-containing oxides or oxide precursors to form a finely-divided slurry containing well-distributed co... | 05/01/2007 |
| 7157072 | Cathode composition for lithium batteries and method of preparing the same Provided is a cathode composition for lithium secondary battery that includes a lithium-chromium-titanium-manganese oxide that has the formula Li[Li(1-x)/3CrxTi(2/3)yMn2(1-x-y)/3]O2 where 0≦x≦0.3, 0≦y≦0.... | 01/02/2007 |
| 7125535 | Method of preparing anhydrous manganese chloride An efficient process for forming anhydrous metal halides includes the reaction of a metal powder with a hydrogen halide under anhydrous conditions. In one example, manganese powder is reacted with hydrogen chloride under anhydrous reaction conditions. ... | 10/24/2006 |
| 7118727 | Method of making oxide particles The present invention provides a process for producing particles, such as oxide nanoparticles, in a substantially water-free environment. The process involves mixing at least one metal compound of the formula MX(m−n) with at least one surfactant and at ... | 10/10/2006 |
| 7105138 | Macroporous perovskite manganese oxides with highly ordered nano-pores and method of preparing the same The present invention relates to the macroporous manganese oxide material having ferromagnetic property and a method of preparing the same, more particularly to the macroporous ferromagnetic manganese oxide having three-dimensionally ordered nanopores, which is prep... | 09/12/2006 |
| 7083829 | Vehicle having atmosphere pollutant treating surface A method and apparatus for treating the atmosphere comprising moving a vehicle through the atmosphere, the vehicle having at least one atmosphere contacting surface and a pollutant treating composition located on said surface. A specific embodiment comprises coating... | 08/01/2006 |
| 7025899 | Concentrated solutions of oxime metal extractants and method of formulating extractant compositions therefrom The preparation of concentrated solutions of oxime metal extractants, such as aldoximes and ketoximes, or mixtures of aldoxime and ketoxime, and the use thereof in formulating or preparing extraction reagent compositions for use in an extractant organic phase in a p... | 04/11/2006 |
| 6998069 | Electrode material for positive electrodes of rechargeable lithium batteries The electrode material for positive electrodes of rechargeable lithium batteries is based on a lithium transition metal oxide. Said lithium transition metal oxide is a lithium transmission metal mixed oxide with at least two transition metals (for example nickel and... | 02/14/2006 |
| 6936090 | Process for isolating rhenium A process for elution of rhenium adsorbed on strongly basic ion-exchange resins by means of highly concentrated aqueous hydrochloric acid solution is described, in which the ion-exchange resin is treated with aqueous solution containing an oxidizing agent. ... | 08/30/2005 |
| 6923922 | Recover and recycle rhodium from spent partial oxidation catalysts A method for the recovery of rhodium from spent supported catalysts. In one embodiment, a method for recovering rhodium from a host material includes roasting the host material in air at a temperature sufficient to convert at least a portion of rhodium to Rh2 | 08/02/2005 |
| 6869547 | Stabilized electrochemical cell active material Stabilized lithiated manganese oxide (LMO) is prepared by reacting cubic spinel lithium manganese oxide particles and particles of an alkali metal compound in air for a time and at a temperature sufficient to decompose at least a portion of the alkali metal compound... | 03/22/2005 |
| 6736958 | Ion sensing method The present invention allows the determination of trace levels of ionic substances in a sample solution (ions, metal ions, and other electrically charged molecules) by coupling a separation method, such as liquid chromatography, with ion selective electrodes (ISE) p... | 05/18/2004 |
| 6709641 | Method for extracting anions The invention relates to a method of extracting anions based on metals of groups IV B to VIII of the periodic table from aqueous solutions thereof, wherein compounds of general formula are used as extractants, in which a... | 03/23/2004 |
| 6692665 | Lithium managanese oxide, cathode material for lithium secondary battery, cathode, lithium secondary battery and process for manufacturing lithium manganese oxide The invention provides a lithium manganese oxide spinel suited as a cathode active material for lithium ion secondary batteries showing excellent high-temperature cycling behavior. The lithium manganese oxide is represented by the following general formul... | 02/17/2004 |
| 6613476 | Positive active material for rechargeable lithium battery and method of preparing same Disclosed is a positive active material of for a rechargeable lithium battery and a method of preparing the same. The positive active material is represented by formula 1: where xࣙ2; 0.25 | 09/02/2003 |
| 6589492 | Process for recovering catalyst components from a mother liquor of liquid phase oxidation A process for recovering components of a catalyst from a mother liquor of liquid phase oxidation in production of aromatic carboxylic acids by liquid phase oxidation of aromatic hydrocarbons having substituents with a gas containing oxygen in a presence o... | 07/08/2003 |
| 6582814 | Rare earth-transition metal oxide pigments Rare earth-transition metal oxides are used as pigments. The rare earth-transition metal oxide pigments are preferably of the formula (Rex Tm)Oy, where Re is at least one rare earth element, Tm is at least one transition metal, x ran... | 06/24/2003 |
| 6517701 | Lead, zinc and manganese recovery from aqueous solutions Aqueous solutions containing lead, zinc and manganese are treated to recover these metals by sequential solvent extraction steps. Solvent extractants are selected to extract preferentially lead, then zinc and then manganese in that order. Any interfering ... | 02/11/2003 |
| 6500779 | Molybdenum based oxidation catalysts This invention concerns catalysts comprising a molybdenum compound of formula I, II, III, IV or V I Vq MoAy Oz II NiMox By Oz' III VNiw Mox Cy' Oz" IV CoNi... | 12/31/2002 |
| 6500395 | Method for removing metals from air pollution control residues A method for the treatment of air pollution control (APC) residues comprising the steps of washing the residues at least one time in an alkaline solution maintained at a pH not lower than about 11.5, separating the alkaline washed residues from the alkali... | 12/31/2002 |
| 6476287 | Sulfite treatment of spent industrial wastes A method of treating metal-contaminated spent foundry sand, or other industrial waste, by combining the sand with a sulfite to produce insoluble metal sulfur oxide complexes that do not leach from the sand. The treated waste may also be processed to reduc... | 11/05/2002 |
| 6461581 | Clathrate compounds and manufacturing method thereof The present invention provides a clathrate compound which can be used as a thermoelectric material, a hard material, or a semiconductor material. Silicon or carbon are formed into a clathrate lattice, and a clathrate compound is then formed in which speci... | 10/08/2002 |
| 6409978 | Method of removing impurities from mineral concentrates A process for removing impurities contained in the crystal lattice of minerals, comprising the steps of forming a mixture of a mineral capable of structurally reorganizing its crystal lattice which contains an impurity in its crystal lattice and a halogen... | 06/25/2002 |
| 6274104 | Non-ferrous metal recovery method utilizing a melt sulphation reaction The invention relates to a method for recovering non-ferrous metals, particularly nickel, cobalt, copper, zinc, manganese and magnesium, from materials containing said metals by converting said non-ferrous metals into sulphates by means of melt and melt c... | 08/14/2001 |
| 6267936 | Method for effecting solvent extraction of metal ions using hydrocarbon soluble aminomethylene phosphonic acid compounds Solvent extraction of one or more metal ions from an aqueous solution in the presence of hydrocarbon-soluble aminomethylenephosphonic acid derivatives.... | 07/31/2001 |
| 6200377 | Process for beneficiation of mixtures of mineral particles An improved process for the beneficiation of mixtures of mineral particles (such as kaolin clays) containing minerals which chelate with hydroxamates. The use of a silicon-containing compound in combination with a hydroxamate results in a more effective s... | 03/13/2001 |
| 6171562 | Process for the extraction and elimination of deleterious material from natural manganese dioxide and concentrate of manganese dioxide obtained by said process This invention relates to a new process for the extraction and elimination of deleterious material present in natural manganese dioxide (NMD), as well as in natural manganese dioxide obtained by such process. The process involves treating NMD with a HCl a... | 01/09/2001 |
| 6156280 | Process for removing manganese from organic solutions of oximes and nickel ore treatment process Process for removing manganese values from a solution of a water-immiscible hydrocarbon containing manganese values and a water-insoluble oxime extractant capable of extracting nickel values from aqueous ammoniacal solutions comprising the steps of I) con... | 12/05/2000 |
| 6153155 | Recovery of the transition metal component of catalyst used in heavy feed hydroconversion The invention relates to a process for recovering the transition metal component of catalysts used in the hydroconversion of heavy hydrocarbonaceous materials. In accordance with the invention, a slurry of a transition metal catalyst and hydrocarbon is ca... | 11/28/2000 |
| 6110433 | Process for the recovery of metals from used nickel/metal/rare earth hydride storage batteries The invention relates to a process for recovering metals from used nickel/hydride storage batteries, in which storage battery scrap has been mechanically comminuted and divided into at least a coarse fraction and a fine fraction capable of being treated s... | 08/29/2000 |
