Abstract: The present invention refers to a ceramic nanosystem constructed for releasing medications in a controlled manner, in the treatment of human beings and animals presenting an organic deficiency which requires the application of said medications. The present invention further refers to the method for preparing said nanosystem, in the form of a ceramic matrix, and also to the method of incorporating a drug to said ceramic matrix, forming a tablet.

Abstract: A method and composition for flocculation and separation of suspended solids from an industrial process stream containing suspended solids is provided. The method includes the steps of adding to the stream a water-in-oil-in-water emulsion polymer in an amount effective to flocculate the suspended solids and separating the flocculated solids therefrom. The composition is a water-in-oil-in-water emulsion of a water-soluble polymer in which the continuous phase is an aqueous solution of a water-soluble salt.

Abstract: The present invention provides a method for recovering an oxide-containing battery material from a waste battery material. The recovery method includes steps (1) and (2) in this order: (1) a step of immersing a base taken out of the waste battery material and the base having an oxide-containing battery material, in a solvent that does not substantially dissolve the oxide, and stripping the battery material from the base thereby, and (2) a step of separating the battery material from the base.

Abstract: The present invention relates to a flaky ?-alumina crystal and a preparation method thereof. More particularly, the present invention relates to a flaky ?-alumina crystal comprising aluminum oxide and zinc oxide, which is prepared by hydrolyzing an aluminum precursor solution containing a water-soluble flux and a zinc precursor solution to obtain a gel mixture and aging, drying, calcining and crystallizing it under a specific reaction condition, and a preparation method thereof. Since the flaky ?-alumina crystal of the present invention has a thickness of less than 0.5 ?m, an average particle diameter of at least 15 ?m and an aspect ratio of at least 50, it is useful as high-quality pearlescent pigment material and filler for ceramic materials.

Abstract: Process for the production of aluminum hydroxide flame-retardants by wet-miling and spray-drying an aluminum hydroxide containing slurry.

Abstract: A method is disclosed for coating a positive active material of a lithium-ion battery. The method includes the step of dissolving at least one salt that contains a coating metal in a solvent to provide a solution, the step of dissolving a lithium-containing positive active material in the solution and adjusting the pH value of the solution to deposit M(OH)2n on the lithium-containing positive active material, the step of drying the M(OH)2n and the lithium-containing positive active material, and the step of sintering the M(OH)2n and the lithium-containing positive active material to coat the lithium-containing positive active material with MOn.

Abstract: A metal oxide powder includes a powder feed material structured and arranged to form molten droplets when melted in a plasma stream. The molten droplets are structured and arranged to form frozen spherical droplets under free-fall conditions such that said molten droplets have ample time for complete in-flight solidification before reaching a collection chamber.

Abstract: Since ?-alumina particles have low bulk density, there is such a problem that a production efficiency of single crystal sapphire is not enough. The present invention provides an ?-alumina for producing single crystal sapphire, wherein its volume per one ?-alumina particle is not less than 0.01 cm3, and its relative density is not less than 80%, and its bulk density of aggregate is in the range of 1.5 to 2.3 g/cm3.

Abstract: The invention relates to thermally sprayed Al2O3 layers having a high content of corundum without any property-reducing additives, and to a method for the production of said layers. The invention may be utilized particularly in the field of electrical insulation, as a dielectric, and as protection from wear. According to the invention, the thermally sprayed Al2O3 layers are characterized in that they have a porosity of no more than 19%, and a high content of ?-Al2O3 (content of corundum) of at least 72% by volume. The layers have a specific electrical resistance of >1·1012 Ohms·cm, and a purity of >97%. The production according to the invention of said layers is carried out utilizing aqueous or alcoholic suspensions made from pure ?-Al2O3, having a grain size of >100 nm by means of a method from the group of thermal spraying.

Abstract: The present invention is a process for the conversion of aluminum oxide hydroxide (AlOOH) to aluminum oxide. About 30 to 70 wt-% of AlOOH, about 30 to 70 wt-% ammonium hydrogencarbonate NH4HCO3 and 0 to 20 wt-% water are combined to produce a mixture. This mixture is then cured at a temperature from about 30° to about 90° C. to convert at least 5% of the AlOOH to a ammonium hydroxycarbonate (dawsonite-type) intermediate and then the dawsonite-type intermediate is decomposed at a temperature from about 130° to 320° C. to produce aluminum oxide. The aluminum oxide can be further calcined at 500° to 800° C. to produce a gamma-theta phase alumina.

Abstract: A method for making a composite includes combining a strengthening agent and an aluminum compound to form a first solution; precipitating an Al(OH)3 gel from the first solution, wherein strengthening agent particles are dispersed within the gel; washing the Al(OH)3 gel with an alcohol; contacting the Al(OH)3 gel with a salt; drying the Al(OH)3 gel to form a powder; calcining the powder to convert Al(OH)3 to Al2O3; and sintering the powder to form a composite article comprising beta double prime alumina.

Abstract: An apparatus and a method for controllably converting aluminum into alane. In the system of the invention, a reaction between aluminum and hydrogen to form alane is performed at temperatures below 100° C. using a supercritical fluid such as CO2 as a reaction medium, with the optional inclusion of a co-solvent, such as an ether, in the reaction vessel. Inert gas is used to exclude unwanted gases such as oxygen. The reaction of aluminum and hydrogen has been observed to proceed at approximately 60° C. using Me2O as an added solvent in CO2 at supercritical pressures.

Abstract: A support for a fuel reforming catalyst includes aluminum (Al); and aluminum oxide (Al2O3) encapsulating the aluminum, wherein a total volume of micropores and mesopores is in the range of 0.1 to 1.0 ml/g per unit mass, and a volume of macropores is in the range of 0.4 to 1.2 ml/g per unit mass, and a method of preparing the same. The support has excellent heat transfer characteristics due to its high thermal conductivity and excellent mass transfer characteristics because the micropores, mesopores, and macropores exist in a proper ratio. Accordingly, if the support is used for a supported catalyst that is used in a reaction, in which the reaction rate is controlled by heat transfer and mass transfer, such as a fuel reforming reaction, the activity of the catalyst is enhanced. In addition, the support can be easily formed as desired due to its high mechanical strength.

Abstract: An odor filtration media having a chemical reagent which removes odor causing fluid contaminants from a fluid stream through the use of granular or shaped media have a chemical composition including permanganate is provided. A method of producing the odor absorbing media having a chemical reagent is also provided and comprises the steps of mixing H2O, KMnO4, and at least one salt adding ions or ionic compounds selected from the group consisting of Na+, Li+, K+, NH4+, Cl?, SO42?, BO32?, CO32?, PO43?, NO3? and combinations thereof, or from the group consisting of Na+, Li+, K+, NH4+, Mg2+, Ca2+, Cl?, BO32?, NO3? and combinations thereof, forming an impregnating solution. The impregnating solution is heated and combined with a support material to form a coherent mass.

Abstract: There is provided a process for preparing aluminium chloride comprising leaching aluminium dross residues with H2SO4 so as to obtain a leachate; and hydrochlorinating the leachate so as to obtain aluminium chloride. If desired, aluminium chloride can then be converted into alumina.

Abstract: The invention relates to amphiphilic, nanoscalar particles comprising lipophilic hydrolyzable groups on their surface. The invention also relates to methods for producing amphiphilic, nanoscalar particles and to compositions containing said particles.

Abstract: The present disclosure suggests a method of manufacturing flake aluminum oxide using a microwave including: performing a pre-treatment on a starting material by grinding the starting material such as alumina hydrate, aluminum salt or the like and classifying particles with an appropriate size; manufacturing transition alumina by performing a heat treatment by means of heating the pre-treated starting material; mixing the transition alumina with molten salt and an additive and then dispersing and grinding the mixed compounds; melting and synthesizing flake aluminum oxide by heating the dispersed and grinded mixture with a microwave as a heating source; separating the molten salt and the additive from the synthesized aluminum oxide; and performing a post-treatment on the flake aluminum oxide by removing a foreign substance such as an additive residue stuck to a surface of a crystal particle of the separated flake aluminum oxide.

Abstract: Embodiments of the invention provide a system and process for recovering useful compounds from a byproduct composition produced in a silicon tetrafluoride production process.

Abstract: To provide an alumina powder having an improved flowability, a process for its production, and a resin composition employing it. An alumina powder which has an ?-phase content of at most 40% as measured by the following method, an average circularity of at least 0.

Abstract: Nanoplatelet forms of metal hydroxide and metal oxide are provided, as well as methods for preparing same. The nanoplatelets are suitable for use as fire retardants and as agents for chemical or biological decontamination.

Abstract: A kind of transparent alumina ceramics is disclosed herein, the optical axes of all or part of the crystal grains of the transparent alumina ceramics are arranged in a direction, which makes the transparent alumina ceramics have orientation.

Abstract: The present invention refers to nanocrystalline spherical ceramic oxides, to the process for the synthesis and use thereof. These oxides, obtained by detonation of a water-in-oil emulsion (W/O), besides having a spherical morphology and nanocrystallinity, show a set of complementary features, namely a particle dimension inferior to 40 ?m, bimodal particle size distribution, high purity, deagglomeration and stable crystalline stages. This set of features makes these powders particularly suitable for several applications such as coating processes, near net shape processes and, when applied in ceramics industry, they provide dense and porous ceramic objects of exceptionally high mechanical resistance.

Abstract: A wall-flow filter monolith substrate having a porosity of at least 40% formed from a selective catalytic reduction (SCR) catalyst of extruded type.

Abstract: It is an object of the present invention to provide an active material for lithium ion battery capable of producing a lithium ion battery having an excellent high rate charge and discharge performance and a lithium ion battery having an excellent high rate charge and discharge performance. The present invention provides an active material for lithium ion battery represented by a composition formula: Li[Li(1-x)/3AlxTi(5-2x)/3]O4 (??x<1) lithium titanate is substituted with Al, and a lithium ion battery using this active material as a negative electrode active material.

Abstract: The present invention provides a method of producing an ?-alumina particle. The method of producing an ?-alumina particle comprises steps of: (1) heating a mixture containing an amorphous alumina and a pyrolyzable salt at temperature of not less than the temperature at which the pyrolyzable salt is decomposed, and less than the temperature at which the amorphous alumina transforms to ?-alumina; and (2) calcining the resultant under a partial pressure of water vapor of about 600 Pa or less.

Abstract: The present invention discloses a continuous calcination vessel which can be used to prepare calcined chemically-treated solid oxides from solid oxides and chemically-treated solid oxides. A process for the continuous preparation of calcined chemically-treated solid oxides is also provided. Calcined chemically-treated solid oxides disclosed herein can be used in catalyst compositions for the polymerization of olefins.

Abstract: A method for the preparation of an inorganic porous oxide material, comprising the following steps: a) dissolving an alumina precursor in a mixture of a non-aqueous solvent and an acid; b) dissolving a pore agent in a non-aqueous solvent; c) mixing together the solutions obtained in step a) and b); d) adding a morphology controller to the reaction mixture of step c); e) evaporating the reaction mixture of step d); and f) removing the morphology controller and the pore agent from the product of step e).

Abstract: The invention relates to a flame-retardant filler based on aluminium hydroxide, its use in polymers and a method for its production, in which aluminium hydroxide in the form of bayerite or a bayerite/gibbsite mixture is modified under pressure at temperatures of at least 170° C. in the presence of water and crystal growth regulator, the aluminium hydroxide used as starting material having an average particle size d50 from 0.1 to 4 ?m.

Abstract: A Bayer process is disclosed. The Bayer process includes a step of treating any one or more of: (a) Bayer liquor or liquors produced in the process, (b) precipitated aluminium trihydrate particles produced in the process, and (c) other solids added to or produced in the process, with ultrasonic energy and destroying organics in the liquor or liquors, on the precipitated aluminium trihydrate particles, and on the other solids.

Abstract: The invention relates to a method of manufacturing a product having a sub-micron primary particle such as metal oxide, metal oxidhydroxide or metal hydroxide product, said method comprising the steps of: introducing a solid reactor filling material in a reactor, introducing a metal-containing precursor in said reactor, introducing a co-solvent into the said reactor, introducing a supercritical solvent in the said reactor. By these steps a contact between the metal-containing precursor and the co-solvent is established, thus resulting in the formation of said product in the proximity of the said solid reactor filling material. The present invention offers the astonishing possibility of producing anatase phase of TiO2 at temperatures as low as between 50° C. and 100° C. and at concurrent pressures of 100-200 bar. The invention also relates to a product such as anatase TiO2 produced by the method and also relates to an apparatus utilising the method.

Abstract: A process for the production of alumina trihydrate by alkaline digestion of bauxite using the Bayer process in which aluminate liquor and insoluble residues are separated using a solid/liquid separation device (E; W2; DC) characterised in that the said slurry (21a; 41; 230?) is at least partially passed through a hydrocyclone (H1; H21; H22; H3) to improve and accelerate the separation of the sodium aluminate liquor from the insoluble residues in the slurry (21a; 41; 230?) containing the said liquor and the said residues and that supplies or is derived from the said liquid-solid separation device. In a first embodiment, at least one hydrocyclone is used at the upstream side of the settler-thickener, as clarifier of the pregnant liquor. In a second embodiment, at least one hydrocyclone is used as a thickener of insoluble residue mud. In a third embodiment, a hydrocyclone is used in combination with the causticisation settler.

Abstract: The present invention relates to a method of adding nucleation seeds in order to promote the formation of hydrate particles in a flow containing hydrocarbon fluids and water. The method may include adding nucleation seeds at a point in the flow before the hydrate-forming area, the nucleation seeds being available for the promotion of the hydrate formation when this area is reached. The invention also relates to use of various compounds for the promotion of hydrate formation in such a fluid flow, thereby forming a transportable hydrate slurry.

Abstract: The invention relates to a cylindrical catalyst body 1 which is characterized in that indentations are provided on the circumferential surface 3 of the catalyst body 1. These indentations are preferably configured as grooves 4 and webs 5 which run parallel to the longitudinal axis 2 of the catalyst body 1.

Abstract: The object of the invention is a method for the manufacture of aluminum trihydrates by hydrolysis of aluminum alcoholates in aqueous, alkaline solution with addition of organic compounds, the so manufactured aluminum trihydrates and their use as catalyst supports.

Abstract: A method of hydroprocessing a heavy hydrocarbon feedstock using a hydroprocessing catalyst having specific properties making it effective in the hydroconversion of at least a portion of the heavy hydrocarbon feedstock to lighter hydrocarbons. The hydroprocessing catalyst comprises a Group VIB metal component (e.g., Cr, Mo, and W), a Group VIII metal component (e.g., Ni and Co) and, optionally, a potassium metal component that are supported on a support material comprising alumina. The alumina has novel physical properties that, in combination with the catalytic components, provide for the hydroprocessing catalyst. The hydroprocessing catalyst is particularly effective in the conversion of the heavy hydrocarbon feedstock. The alumina is characterized as having a high pore volume and a high surface area with a large proportion of the pore volume being present in the pores within a narrow pore diameter distribution about a narrowly defined range of median pore diameters.

Abstract: Process for removing halide compounds adhering to finely divided metal oxide particles by means of steam, wherein the metal oxide particles are applied to the upper part of an upright column and migrate downwards by means of gravity, the steam is applied at the bottom end of the column, the metal oxide particles and the steam are fed counter-currently, the metal oxide particles freed of halide residues are removed at the base of the column, steam and halide residues are removed at the head of the column, wherein the column is heated in such a manner that the temperature difference Tbottom?Ttop between the lower part and the upper part of the column is at least 20° C. and a maximum temperature of 500° C. prevails in the column, and the metal oxide particles have a residence time in the column of from 1 second to 30 minutes.

Abstract: The present invention relates to a preparation method of metal oxide, and more specifically to a preparation method of metal oxide comprising the steps of: a) dissolving metal halide in a solvent; b) adding and reacting water or metal hydroxide having strong basicity; c) adding base to the reaction solution and then raising a temperature thereof to form the metal oxide-carbon complex; d) stopping the reaction by inputting a large amount of water or metal hydroxide and raising the temperature thereof; and e) obtaining the metal oxide-carbon complex by a separation and a cleaning.

Abstract: The present invention relates ways to increase the output of a high quality product from the aluminum hydroxide recovery processes such as the Bayer process. The invention is a method of increasing the size of precipitated aluminum hydroxide while not reducing the total production amounts. The invention relates to the use of a crystal growth modifier compositions added to the precipitation liquor to increase the particle size distribution of the precipitated alumina trihydrate.

Abstract: Alumina particles and compositions containing alumina particles are disclosed. Methods of making alumina particles and methods of using alumina particles are also disclosed.

Abstract: Glass-ceramic sealant is disclosed for planar solid oxide fuel cells. The glass-ceramic sealant includes 0 to 40 mol % of silicon oxide, 0 to 15 mol % boron oxide, 0 to 10 mol % of aluminum oxide, 0 to 40 mol % of barium oxide, 0 to 15 mol % of calcium oxide, 0 to 15 mol % of lanthanum oxide and 0 to 5 mol % of zirconium dioxide. At 0° C. to 600° C., the thermal expansion coefficient of the sealant is 8 to 10 ppm/° C.

Abstract: Base treated aluminas exhibit improved CO2 capacity over untreated aluminas. Base treated aluminas prepared by physically mixing alumina and base during forming have (1) a higher surface area, (2) less hydrothermal aging, (3) improved CO2 capacity and (4) lower cost than base treated aluminas produced by aqueous impregnation. A method for removing at least CO2 and water from a gas stream includes providing an adsorbent formed from a process comprising physically mixing activated alumina solids and solid salts of alkali metals, alkaline earth metals or ammonium ion; and contacting the gas stream with the adsorbent.

Abstract: The present invention provides a method for producing an ?-alumina particle. The method for producing an ?-alumina particle comprises steps of: (1) placing a powdery mixture containing an aluminum salt and a seed crystal under a circumstance at not less than pyrolysis temperature of the aluminum salt, and (2) calcining the resultant.

Abstract: Cement compositions and methods for making cement compositions are provided. The cement compositions can comprise at least one oxide having a particle size of less than about 600 nm.

Abstract: ?-Alumina powder is provided having a purity of 99.99% by weight or more, a specific surface area of from 0.1 to 2.0 m2/g, a relative density of from 80 to 95%, a closed porosity of 4% or less, and a loosed bulk density of 2.4 g/cm3 or more, which is measured by a method for measuring physical properties of alumina powder according to JIS R9301-2-3 (1999).

Abstract: A method for producing alumina comprising the steps of mixing an aqueous medium in an amount of 20 parts by weight or more and 300 parts by weight or less with 100 parts by weight of a first dry powdery aluminum hydroxide prepared by an aluminum alkoxide method to give a wet powdery aluminum hydroxide; drying the wet powdery aluminum hydroxide by an agitation drying system to give a second dry powdery aluminum hydroxide; and calcining the second dry powdery aluminum hydroxide to give alumina having a high bulk density.

Abstract: A composition and a method for increasing intracellular nitric oxide is provided. The composition comprises a far-infrared ray releasing substance composed mainly of an oxide mineral for releasing a far-infrared ray, wherein the composition promotes generation of the nitric oxide via irradiation of the far-infrared ray from the far-infrared ray releasing substance. In another aspect, the method comprises setting an effective amount of a far-infrared ray releasing substance in a place close to a cell with an appropriate distance, and incubating the far-infrared ray releasing substance with the cell for a specific period, wherein the appropriate distance lies in an irradiation range of the far-infrared ray releasing substance.

Abstract: A hydrothermal process for making Alpha Alumina (?-Al2O3) crystalline nano-sized powders in the form of at least one of nano-sheets and nano-fibers, the process includes making the Alpha Alumina with an aspect ratio of diameter to thickness ratio of at least two, and with at least one dimension of diameter or thickness being less than 100 nm. A composition in accordance with the process. A porous ceramic that includes the composition.

Abstract: Catalysts for the oxychlorination of ethylene to 1.2-dichloroethane, in form of hollow granules having definite geometrical configuration and pore volume distribution with at least 20% of the total volume formed of macropores wherein the diameter of the pores at the maximum of the macropore distribution curve is higher than 800 nm and up to 1500 nm.

Abstract: The invention provides a method for modifying a surface of aluminum oxide. Aluminum oxide is contacted with a hydrogen peroxide aqueous solution having 5-70 volume % of hydrogen peroxide for 20 minutes to 3 hours. The invention also provides an electroosmosis pump and electric power generator having a porous aluminum oxide membrane modified by the above method.

Abstract: Disclosed are adhesive coating compositions containing a metal peroxide for producing clear colorless adhesive coatings on substrates, particularly micro particulate substrates. In one preferred embodiment the nanoparticle coatings are chemically active and function at a high level of efficiency due to the high total surface area of the micro particulate substrate. Also disclosed are coated substrates and compositions having nanoparticles bound to a substrate by the coating compositions.