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| Number | Title | Issue Date |
| 7329396 | Process for the recovery of value metals from material containing base metal oxides A process for leaching a value metal from oxidic materials, such as a lateritic nickel ore, comprising the step of leaching the ore with a lixiviant comprising a cationic salt (e.g., magnesium chloride) and hydrochloric acid is disclosed. An oxidant or additional me... | 02/12/2008 |
| 7297315 | Method of recovering a cleaning agent The invention provides a method of recovering a copper component or a manganese component from a cleaning agent containing copper oxide, a cleaning agent containing basic copper carbonate, a cleaning agent containing copper hydroxide, or a cleaning agent containing ... | 11/20/2007 |
| 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 |
| 7132093 | Mesoporous mixed oxide materials as a new class of SOresistant catalysts for hydrocarbon oxidation The oxide materials are of the class of ternary mesoporous mixed oxide materials including lanthanum, a metal M selected from the group consisting of Cr, Mn, Fe, Co, Ni, Cu and Zn, and zirconium or cerium such a mesoporous La—Co—Zr mixed oxide material designate... | 11/07/2006 |
| 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 |
| 6800260 | Processes for treating iron-containing waste streams Processes for treating iron containing waste streams are provided. According to these processes, metal-containing compounds, particularly iron oxides are produced. These methods may, for example, be used in the processing of the waste streams from the chlorination o... | 10/05/2004 |
| 6783855 | Rare-earth-activated phosphors A process for preparing phosphor particles of a host oxide doped with a rare earth or manganese which comprises: preparing an aqueous solution of salts of the host ion and of the dopant ion and a water soluble compound which decomposes under the reaction cond... | 08/31/2004 |
| 6656247 | Selective precipitation of manganese from magnesium-containing solutions A process is provided for selectively precipitating and removing manganese relative to magnesium from an acidic solution, preferably barren of one or more of cobalt, nickel, copper and zinc, but containing appreciable amounts of manganese, magnesium, and ... | 12/02/2003 |
| 6645458 | Method for making an aqueous sodium chloride solution Process for the manufacture of an aqueous sodium chloride solution, according to which a solid material comprising sodium chloride and heavy metals is dispersed in water, the aqueous medium thus obtained is alkalinized so as to precipitate the heavy metal... | 11/11/2003 |
| 6589695 | Positive active material for rechargeable lithium battery and method of preparing same Disclosed is a method of preparing a positive active material for a rechargeable lithium battery. In this method, a lithium salt is reflux-reacted with a metal salt in a basic solution. The positive active material has a spherical or sperical-like form, d... | 07/08/2003 |
| 6495050 | Method for treating manganese containing water A treating method and apparatus for treating a manganese containing water by crystalizing and removing a soluble manganese in a water to be treated containing carbonic acid ions by passing the water to be treated as an upward flow through a fluidized bed ... | 12/17/2002 |
| 6485696 | Recovery/removal of metallic elements from waste water using ozone Ozone is used to rapidly oxidize specific metallic elements. The insoluble oxidized compounds of the metals formed by the ozonation are then recovered for industrial use in a conventional sedimentation/filtration tank or pool. There is no requirement for ... | 11/26/2002 |
| 6485629 | Process for separation of heavy metals from residues by use of ethylene-diamine-disuccinic acid (edds) complexant A process for separating a first source of a heavy metal ion or mixtures of heavy metal ions, (Me1), from a solution comprising a complex of said Me1 and EDDS, (Me1 -EDDS), by displacement of said Me1 with a sec... | 11/26/2002 |
| 6409979 | Selective precipitation of nickel and cobalt A method for precipitating nickel and cobalt from an acid aqueous solution containing at least dissolved nickel, cobalt and manganese, comprising adding solid caustic calcined magnesium oxide or freshly slurried caustic calcined magnesium oxide to the sol... | 06/25/2002 |
| 6391270 | Method for removing manganese from acidic sulfate solutions A method and apparatus for precipitating manganese from acidic sulfate solutions, and more specifically from zinc leach solutions, without removing zinc. A zinc- and manganese-containing solution is treated with an SO2 --O2 gas mixtu... | 05/21/2002 |
| 6352675 | Process for removing heavy metals from a caustic fluid stream The present invention provides both reagents and a process for removing heavy metals from a caustic fluid stream by the addition of reagents which are not corrosive or deleterious. Specifically, the present invention is directed to removing heavy metals f... | 03/05/2002 |
| 6328938 | Manufacture of titanium dioxide with recycle of waste metal chloride stream A method for the integration of a manufacturing facility with a salt dome, which manufacturing facility is one for the production of high purity titanium dioxide using chlorine as a reactant. The metal chlorides produced as a by-product of titanium dioxid... | 12/11/2001 |
| 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 |
| 6270738 | Process for preparing usable products from an impure ferric sulfate solution The invention relates to a process for preparing a usable product, in particular a water treatment solution which contains ferric iron, from an impure ferric sulfate solution which contains as an impurity at least one other metal, the process comprising a... | 08/07/2001 |
| 6261712 | Method of reclaiming cathodic active material of lithium ion secondary battery Disclosed is a method of reclaiming a cathodic active material of lithium ion secondary batteries. The lithium ion secondary battery is broken and the casing and the content are separated to remove the casing from the content. The content is dissolved int... | 07/17/2001 |
| 6245240 | Treatment of a solution containing iron salts Provided herein is a process for treatment of solutions which contain ferrous, ferric and soluble manganese species which process comprises addition of an oxidizing agent to such a solution to cause formation of manganese dioxide particles and adding mang... | 06/12/2001 |
| 6117408 | Method of producing zinc bromide A method for producing zinc bromide from zinc hydroxide contaminated with iron and manganese compounds. The method comprises the step of mixing zinc hydroxide feedstock containing metal impurities with a hydrobromic acid comprising elemental bromine in th... | 09/12/2000 |
| 5961879 | Process for the manufacture of hypochlorite bleaching compositions The present invention discloses a process for the manufacture of liquid aqueous bleaching compositions comprising hypochlorite, a strong source of alkalinity and water, said process comprising the steps of: mixing said alkali metal hypochlorite, said stro... | 10/05/1999 |
| 5951954 | Method for manufacturing clear brine fluids from impure zinc feedstock A method for utilization of zinc byproducts in the manufacture of clear brine fluids comprising the step of mixing zinc feedstock containing metal impurities with a halogenic acid to produce an impure zinc halide solution. The metal impurities are removed... | 09/14/1999 |
| 5928559 | Process for the manufacture of hypochlorite bleaching compositions The present invention discloses a process for the manufacture of liquid aqueous bleaching compositions comprising alkali metal hypochlorite, a strong source of alkalinity and water; said process comprising the steps of: mixing alkali metal hypochlorite, s... | 07/27/1999 |
| 5858324 | Lithium based compounds useful as electrodes and method for preparing same A process for preparing a compound that includes the steps of: (a) preparing a solution comprising (i) a chromium source, (ii) a manganese source, (iii) a lithium source, and (iv) an oxygen source, where the relative amounts of each of the sources is sele... | 01/12/1999 |
| 5702674 | Framework metal-substituted manganese oxide octahedral molecular sieve and process for its preparation Manganese oxide octahedral molecular sieves are provided in which a portion of the framework manganese is substituted by at least one other metal, e.g., a transition metal.... | 12/30/1997 |
| 5641465 | Lithium maganese oxide compound and method of preparation A method for manufacturing Li2 Mn2 O4 comprising the steps of providing ଲ-MnO2 or λ-MnO2 ; providing a source of lithium; dissolving lithium from the lithium source in a liquid medium in which ... | 06/24/1997 |
| 5599436 | Process for the preparation of manganese(III)-containing nickel hydroxide The present invention relates to a process for the preparation of manganese(III)-containing nickel(II) hydroxide powders, more than 50 mole % of the manganese being present in the trivalent oxidation state, by co-precipitation of nickel(II) and manganese ... | 02/04/1997 |
| 5597664 | Lithium manganese oxide compound and method of preparation A method for manufacturing Li2 Mn2 O4 which comprises the steps of providing LiMn2 O4 ; providing a lithium salt; forming a solution or suspension of the LiMn2 O4 and lithium salt in ... | 01/28/1997 |
| 5578282 | Octahedral molecular sieve possessing (4×4) tunnel structure and method of its production A new class of manganese oxide octahedral molecular sieves possess a (4×4) tunnel structure. The molecular sieves possess the general composition Aa Mb Mn16-b O32 n.multidot.H2 O wherein A is +1, +2, +3 o... | 11/26/1996 |
| 5534234 | Recovery of manganese from leach solutions Methods of recovering manganese in the form of manganese carbonate from ores containing manganese and iron while also removing substantially all of the iron contained in the sulfurous acid leach solution are disclosed.... | 07/09/1996 |
| 5458745 | Method for removal of technetium from radio-contaminated metal Technetium is separated from radio-contaminated metal in a three-step process. The contaminated metal is dissolved in an acid solution; the technetium, present in the resultant solution as pertechnetate ions, is quantitatively reduced to its metallic stat... | 10/17/1995 |
| 5429887 | Process for treating AB5 nickel-metal hydride battery scrap A process for treating an AB5 Ni--MH battery to recover purified positive and negative electrode components of the battery is disclosed. An AB5 Ni--MH battery is placed in a mineral acid leach solution to cause the positive and negat... | 07/04/1995 |
| 5419986 | Method of making a rechargeable manganese-oxide compound and related electrode material A method of making a rechargeable battery electrode material containing manganese oxide is provided. The method includes preparing an aqueous solution of manganese nitrate and dissolving bismuth nitrate into the solution. The mixture is heated to evaporat... | 05/30/1995 |
| 5411643 | Integrated process of using chloric acid to separate zinc oxide and manganese oxide A process for producing manganese dioxide and zinc metal comprising the steps of: (1) reacting a mixture of zinc oxide and manganese oxide with an aqueous chloric acid solution wherein the chloric acid is in molar excess of the manganese oxide in a reacti... | 05/02/1995 |
| 5407650 | Process for purifying a technical iron chloride solution by selective precipitation A process for purifying an acidic technical-grade iron chloride solution formed from cyclone dust from the production of TiO2 in accordance with the chloride process by adjusting the pH with a first neutralizing agent and thereafter introducing... | 04/18/1995 |
| 5401477 | Process for producing solid manganese dioxide A process for producing manganese dioxide comprising the steps of: (1) reacting manganese oxide with a molar excess of an aqueous chloric acid solution in a reaction zone to form a reaction mixture in said zone comprising chlorine gas, a solid phase containing... | 03/28/1995 |
| 5391365 | Process for producing manganese dioxide The invention relates to the manufacture of manganese dioxide by a chemical process. The resulting manganese dioxide product takes the form of particles characterized by filament-like protrusions jutting out from its surface. The manganese dioxide particl... | 02/21/1995 |
| 5348726 | Process for producing manganese dioxide The invention relates to the manufacture of manganese dioxide by a chemical process. The resulting manganese dioxide product takes the form of particles characterized by filament-like protrusions jutting out from its surface. The manganese dioxide particl... | 09/20/1994 |
