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| Number | Title | Issue Date |
| 8158089 | Compositions and methods for wastewater treatment Particular aspects provide a method for recovering phosphate, comprising: obtaining an effluent or wastewater, etc. having calcium-sequestered phosphate; adding to the effluent or wastewater a calcium chelating or sequestration agent suitable to chelate or sequester... | 04/17/2012 |
| 7731921 | Process for sequestration of carbon dioxide A process for sequestration of carbon dioxide comprising the following steps: (a) dispersing solid waste material comprising calcium oxide and a calcium-comprising mixed oxide in water to dissolve at least part of the calcium oxide and to form calcium oxide-depleted... | 06/08/2010 |
| 7727497 | Method for producing particles, particles, and sintered body Disclosed herein are a particle production method whereby spherical fine particles of a crystalline calcium phosphate-based compound can be efficiently produced at low cost, fine particles (especially, spherical particles) with good flowability produced by the parti... | 06/01/2010 |
| 7438756 | Method of improving material comprising a pozzolanic component The invention relates to a method of improving a material comprising a pozzolanic component. According to the invention the material is treated with an aqueous liquid resulting in treated, calcium-depleted material and a calcium-enriched aqueous solution, which are ... | 10/21/2008 |
| 7419643 | Methods and apparatus for recovering gypsum and magnesium hydroxide products The present invention provides methods and apparatus for treating flue gas containing sulfur dioxide using a scrubber, and more particularly relates to recovering gypsum and magnesium hydroxide products from the scrubber blowdown. The gypsum and magnesium hydroxide ... | 09/02/2008 |
| 7371356 | Method for the production of precipitated calcium carbonate with a high degree of brightness Calcium carbonate with high brightness is prepared by treating calcium carbonate and/or the milk of lime used for its preparation by reacting milk of lime with carbon dioxide and/or at least one of the calcium-containing preliminary products used for the preparation... | 05/13/2008 |
| 7351433 | Method for producing polymeric sol of calcium phosphate compound and method for coating the same on a metal implant Disclosed is a method for producing a transparent and homogenized polymeric sol of a calcium phosphate compound, containing apatite and having excellent wettability and bioactivity, according to a sol-gel synthesis, and a method for coating the polymeric sol on a me... | 04/01/2008 |
| 7347983 | Mg2MM'o 6+x, (M=Y, rare earth metal and M'=SN, OR Zr) dielectric ceramics Complex ceramic oxides of the general formula Mg2MM′O6+x where M=Rare metal ion or Yttrium or Lanthanum and M′=Sn, Sb, Zr, Hf, Ta, and Nb; and where −0.5 | 03/25/2008 |
| 7347896 | Reactive magnesium oxide cements Novel hydraulic cements are disclosed that include reactive magnesium oxide prepared by low temperature calcination. The cements can be formulated to suit a large number of applications with various setting times, strength and levels of sustainability either by addi... | 03/25/2008 |
| 7300539 | Treatment of solid containing material derived from effluent A method of treating solid containing material derived from effluent or sludge from a plant for deinking paper, the material containing calcium in the form of one or more insoluble calcium compounds, the method including the steps of treating the material with an ac... | 11/27/2007 |
| 7288241 | Black composite oxide particle and method for production thereof A black composite oxide particle includes a composite oxide having Fe, Mg and Al as metal components. The particle contains Fe, Mg and Al in amounts of 30 to 55 mass %, 1 to 10 mass %, and 1 to 10 mass %, respectively, and has an atomic ratio of Fe3+/Fe | 10/30/2007 |
| 7288239 | Method for producing alkaline earth sulphate nanoparticles The invention relates to synthesis of nanoparticles, in particular to methods for producing nanoparticles with networks consisting of Z sulphate (Z=magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba) or the binary mixtures thereof). The inventive method consis... | 10/30/2007 |
| 7282188 | Method and device for producing a metal hydroxide The invention concerns a method and an apparatus for producing a metal hydroxide, in particular magnesium hydroxide, from a salt solution, wherein the metal is firstly precipitated from the salt solution and the suspension produced in that way is then filtered. The ... | 10/16/2007 |
| 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 |
| 7204971 | Shaped microcomponents via reactive conversion of biologically-derived microtemplates The present invention is focused on a revolutionary, low-cost (highly-scaleable) approach for the mass production of three-dimensional microcomponents: the biological reproduction of naturally-derived, biocatalytically-derived, and/or genetically-tailored three-dime... | 04/17/2007 |
| 7198722 | Process for pre-treating and desalinating sea water Water containing dissolved salts, such as calcium sulfate, calcium chloride, magnesium sulfate, magnesium chloride, sodium carbonate, sodium chloride, sodium sulfate, calcium bicarbonate, and mixtures thereof, is treated to reduce the concentration of those salts. A... | 04/03/2007 |
| 7182929 | Nanostructured multi-component and doped oxide powders and method of making same A method for producing nanostructured multi-component or doped oxide particles and the particles produced therein. The process includes the steps of (i) dissolving salts of cations, which are either dopants or components of the final oxide, in an organic solvent; (i... | 02/27/2007 |
| 7182930 | Methods of fabricating barium titanate powders A method of fabricating barium titanate powders uses titanium tetrachloride and barium hydroxide as reactants in a reaction solution. The pH value of the reaction solution is adjusted to strongly alkaline range by adding potassium hydroxide. Nitrogen is charged into... | 02/27/2007 |
| 7179438 | Methods and apparatus for recovering gypsum and magnesium hydroxide The present invention provides methods and apparatus for treating flue gas containing sulfur dioxide using a scrubber, and more particularly relates to recovering gypsum and magnesium hydroxide products from the scrubber blowdown. The gypsum and magnesium hydroxide ... | 02/20/2007 |
| 7179441 | Method for preparing barium-titanate based powder The present invention relates to a method for preparing barium titanate based powder. More particularly, the present invention provides a method for preparing barium titanate powder comprising the following steps of precipitation of barium titanyl oxalate (BaTiO(C | 02/20/2007 |
| 7163667 | Production process for oxide magnetic material and oxide magnetic material A production process for an oxide magnetic material comprising the steps of blending raw material powder so as to take the composition of a hexagonal ferrite including: at least one kind of an element A selected from the group consisting of Ba, Sr and Ca; Co and Cu;... | 01/16/2007 |
| 7147835 | Oxide powder for dielectrics, method of manufacturing oxide powder for dielectrics, and multi-layer ceramic capacitor using the same Disclosed herein is a small particle oxide powder for dielectrics. The oxide powder has a perovskite structure, an average particle diameter [D50(μm)] of 0.3 μm or less, a particle size distribution of the average particle diameter within 3%, a particle size distr... | 12/12/2006 |
| 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 |
| 7115242 | Method for the synthesis of ferrates A method of synthesis of alkali metal ferrates and alkaline earth metal ferrates, in which a trivalent iron compound is mixed with potash and optionally persulphate, and the mixture is heated at a temperature in the range of about 250 to about 500° C. for about 1 t... | 10/03/2006 |
| 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 |
| 7101484 | Sr-90/Y-90 radionuclide generator for production of high-quality Y-90 solution A process for purifying a stock Sr-90 solution containing stable and radioactive impurities, holding the purified Sr-90 solution for Y-90 ingrowth, and subsequently extracting the Y-90 from the Sr-90/Y-90 solution. The stock solution is sequentially passed through t... | 09/05/2006 |
| 7067104 | Shaped microcomponent via reactive conversion of biologically-derived microtemplates The present invention is focused on a revolutionary, low-cost (highly-scaleable) approach for the mass production of three-dimensional microcomponents: the biological reproduction of naturally-derived, biocatalytically-derived, and/or genetically-tailored three-dime... | 06/27/2006 |
| 7060243 | Tellurium-containing nanocrystalline materials Tellurium-containing nanocrystallites are produced by injection of a precursor into a hot coordinating solvent, followed by controlled growth and annealing. Nanocrystallites may include CdTe, ZnTe, MgTe, HgTe, or alloys thereof. The nanocrystallites can photolumines... | 06/13/2006 |
| 7052660 | Wet-processing method for combustion ashes of petroleum fuels There is disclosed a wet-processing method for combustion ashes of petroleum fuels, comprising a slurry preparation step of preparing a slurry of the combustion ashes; a metal oxidation step of preparing a slurry containing ammonium metavanadate; a solid/liquid sepa... | 05/30/2006 |
| 7048803 | Method of dissolving scale A method of dissolving scale comprises contacting the scale with a solution of an alkali metal bisulfate. Another method of dissolving scale comprises contacting the scale with a solution of an alkali metal bisulfate and a strong mineral acid. A further method of di... | 05/23/2006 |
| 6926879 | Method of producing food grade hydrated lime A method is shown for producing food grade hydrated lime. A source of raw, hydrated lime is first passed through a classification step which divides the raw hydrated lime into a first fine stream and a first coarse stream. The first coarse stream is then passed to a... | 08/09/2005 |
| 6890503 | Silica additive for use in rubbers and similar cross-linked materials The present development is a silica additive for use in rubbers and similar cross-linked materials having a silicon atom intercalated within an oxygenated framework. The additive may be prepared starting with crystalline, fused or amorphous silica powder, thereby re... | 05/10/2005 |
| 6849208 | Nickel mixed hydroxide, method for the producing the same, and the use thereof as a cathode material in alkaline batteries The invention relates to a nickel mixed hydroxide with Ni as the main element and with a layer structure, comprising at least one element Ma from the group comprising Fe, Cr, Co, Ti, Zr and Cu which is present in two different oxidation states which diffe... | 02/01/2005 |
| 6776972 | Recovery of common salt and marine chemicals from brine A new process for recovery of common salt, potassium chloride, concentrated magnesium chloride with enriched bromide, and high purity magnesia from brine in an integrated manner, said process comprises preparation of calcium chloride by reaction of hydrochloric acid... | 08/17/2004 |
| 6682713 | Iron sulfides, processes for producing the same, iron sulfide mixture, heavy metal treating agent, and method of treating with the agent Novel iron sulfides having excellent durability and excellent treating properties of heavy metals, processes for producing the iron sulfides, iron sulfide mixture, a heavy metal treating agent containing either of these novel iron sulfides as an effective... | 01/27/2004 |
| 6673732 | Process for catalytic ammonia production--preparation and recovery of ammonia synthesis catalyst A catalyst active in ammonia synthesis with improved activity and a process for the recovery of useful components from the catalyst.... | 01/06/2004 |
| 6656588 | Ultrafine powders and their use as lasing media Doped, nanosize metal oxide particles have been shown to exhibit stimulated emission and continuous-wave laser action when energized appropriately, for example by electron beams. The doped particles are useful as solid state lasing devices and "laser pain... | 12/02/2003 |
| 6589449 | High-melting-point conductive oxide, method of manufacturing the same, and high-temperature electrically conductive material based on the oxide A high-melting-point conductive oxide includes a mixture of a powdered Sr compound and Ru compound and/or Ru metal. The mixture is sintered at a primary temperature of 900° C. to 1300° C. in an atmosphere containing oxygen to form a sintered body that i... | 07/08/2003 |
| 6572793 | Method of producing ceramic composition and method of producing electronic device A method of producing an electronic device including a dielectric layer includes a dielectric ceramic composition containing a main component expressed by a formula of {(Sr1-x Cax)O}m.(Ti1-y Zry)O | 06/03/2003 |
| 6569399 | Process for the preparation of high-purity magnesium hydroxide and magnesium oxide from magnesium alkoxides There is provided a process for producing high-purity magnesium hydroxide by reaction of magnesium or reactive magnesium compounds with hydroxy compounds yielding magnesium alkoxides, followed by hydrolysis to form magnesium hydroxide, or a process for pr... | 05/27/2003 |
