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7615577 |
Highly filled dispersion containing transition aluminium oxide
Aqueous dispersion containing transition aluminium oxide as only solid and a dispersant, in which—the transition aluminium oxide is present in the form of aggregates of primary particles, the...
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7615201 |
Spherical particles of silica-containing compound oxide and method of production
By using a halogen-free siloxane and an organometallic compound containing at least one metal other than silicon as feed stocks, and simultaneously atomizing and burning them in a flame, spherical...
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7601324 |
Method for synthesizing metal oxide
The method for synthesizing metal oxide nanopowder produces powders of nanoparticle size from metals having relatively low boiling temperatures, such as zinc, tellurium, bismuth, and strontium by...
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7582277 |
Seeded boehmite particulate material and methods for forming same
A boehmite particulate material is disclosed. The material is formed by a process that includes providing a boehmite precursor and boehmite seeds in a suspension, and heat treating the suspension...
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7579014 |
Mesoporous compositions for use in drug delivery
The present invention encompasses novel mesoporous compositions comprising vitamin E and alumina, and methods for their synthesis. The mesoporous compositions of the present invention have...
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7576035 |
Honeycomb structure and method for manufacturing honeycomb structure
A pillar-shaped honeycomb structure has a plurality of cells longitudinally placed in parallel with one another with a wall portion therebetween, wherein the honeycomb structure mainly includes...
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7575736 |
Process for the production of ultrafine plate-like alumina particles
A process for producing plate-like alumina particles with a high aspect ratio is described. Nano-sized particles of an aluminium precursor compound, optionally formed by milling, are mixed with a...
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7572423 |
Fumed metal oxide particles and process for producing the same
The invention provides a process for producing fumed metal oxide particles comprising providing a stream of a liquid feedstock comprising a volatizable, non-halogenated metal oxide precursor,...
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7553474 |
Method for producing metal oxide sol
It is an object to provide a method for producing stable alkaline metal oxide sols having a uniform particle size distribution. The method comprises the steps of: heating a metal compound at a...
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7553465 |
Cerium oxide powder and cerium oxide dispersion
Cerium oxide powder having carbonate groups and made of crystalline primary particles containing cerium oxide and having carbonate groups on the surface and in a region close to the surface, and...
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7547431 |
High purity nanoscale metal oxide powders and methods to produce such powders
A method of producing high purity nanoscale powders in which the purity of powders produced by the method exceeds 99.99%. Fine powders produced are of size preferably less than 1 micron, and more...
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7534415 |
Mesostructured transition aluminas
Mesoporous crystalline alumina compositions and process for the preparation thereof are described. The compositions are useful as catalysts and absorbents.
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7531161 |
Boehmite and polymer materials incorporating same
A modified polymer material is discloses, including a polymer base and boehmite particles provided in the polymer base, the boehmite particles are made up of mainly anisotropically shaped particles.
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7504085 |
Alumina-based perovskite catalysts and catalyst supports
An alumina-based perovskite is formed by mixing a lanthanide source with a transitional alumina to form a dual-phase composition comprising in-situ formed LnAlO 3 dispersed in alumina. The...
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7491379 |
Method for producing nano-scale θ-phase alumina microparticles
A method for producing nano-scale theta (θ)-phase alumina microparticles is disclosed. The nano-scale θ-phase alumina microparticles are uniform in particle size and highly phase-pure. They are...
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7488464 |
Metal oxide processing methods and systems
Methods and systems for processing metal oxides from metal containing solutions. Metal containing solutions are mixed with heated aqueous oxidizing solutions and processed in a continuous process...
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7485282 |
Method for the preparation of metal oxides in nanometric particle form
A process is described for the synthesis of metal oxides in a nanometric particle form that cannot be easily obtained by conventional bulk synthesis techniques. The method makes use of Colloid...
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7482382 |
Process for preparing nano-sized metal oxide particles
The present invention is directed to novel sol-gel methods in which metal oxide precursor and an alcohol-based solution are mixed to form a reaction mixture that is then allowed to react to produce...
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7476440 |
Alumina particle, alumina particle manufacturing method, resin composition, and resin composition manufacturing method
An alumina particle ( 1 ) of the present invention has an alumina body with a short axis length (b) of 1 to 10 nm, a long axis length (a) of 20 to 400 nm and an aspect ratio (a/b) of 5 to 80. The...
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7476272 |
Aluminum trihydrate containing slurries
The present invention relates to Aluminum trihydrate slurries comprising aluminum trihydrate particles, an acrylic dispersant, citric acid, synthetic hectorite clay, optionally a compound to adjust...
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7468169 |
Process for producing calcium trisulfoaluminate and apparatus for use in said process
This invention provides a production process, which can stably produce high-quality satin white (calcium trisulfoaluminate) having very small and homogeneous particulate shapes suitable for...
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7459104 |
Low temperature fired, lead-free thick film heating element
A lead free, thick film heating element. Known thick film heating elements contain environmentally hazardous material such as lead. This is particularly problematic when manufacturing thick film...
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7442361 |
Method of producing aluminum hydroxides by precipitating aluminum salts in the presence of seed crystals
The invention relates to a procedure for manufacturing alumina hydrates by precipitating aluminum salts in the presence of crystal nuclei of a specific size.
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7438977 |
Gibbsite type aluminum hydroxide particles having high oil absorption
The present invention provides gibbsite type aluminum hydroxide particles having a primary particle diameter of from 0.01 μm to 0.3 μm and a DOP oil absorption of from 90 mL/100 g to 300 mL/100 g.
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7438882 |
Gel and powder making
A method of forming a gel and/or powder of a metallic oxide, metalloid oxide and/or a mixed oxide or resin thereof from one or more respective organometallic liquid precursor(s) and/or...
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7422730 |
Nanoporous ultrafine α-alumina powders and sol-gel process of preparing same
The present invention provides α-alumina powders comprising α-alumina particles of which at least 80% of the α-alumina particles have a particle size of less than 100 nm. The invention also...
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7402612 |
Stabilized transition alumina catalyst support from boehmite and catalysts made therefrom
This invention relates to methods for making a stabilized transition alumina of enhanced hydrothermal stability, which include the introduction of at least one structural stabilizer; a steaming...
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7357910 |
Method for producing metal oxide nanoparticles
Method for producing metal oxide nanoparticles. The method includes generating an aerosol of solid metallic microparticles, generating plasma with a plasma hot zone at a temperature sufficiently...
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7351394 |
Method for producing α-alumina powder
A method for producing an α-alumina powder is described. The method for producing an α-alumina powder comprises a step of calcining an aluminum salt in the presence of a seed crystal at 600-890° C.
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7351393 |
Star shaped alumina extrudates and catalyst based thereon
This invention is directed to star shaped alumina extrudates with a pore volume in the pores of a diameter over 1000 nm, as determined by mercury porosity, of at least 0.05 ml/g and a total pore...
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7344988 |
Alumina abrasive for chemical mechanical polishing
Methods of manufacturing alumina abrasive for use in chemical mechanical polishing are described, wherein the abrasive is in a slurry having gamma alumina formed in a low temperature fuming...
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7326398 |
Non-silica mesoporous oxide having improved pore structure periodism, method of producing the mesoporous oxide and method of crystallizing pore wall of non-silica mesoporous oxide using template to be filled in pores
A method for preparation for mesoporous oxide comprising a non silica oxide having a hexagonal pore structure periodicity and an average maximum pore length of from 2 nm to 5 nm, characterized by...
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7307033 |
Method for producing α-alumina particulate
A method for producing an α-alumina particulate is described. The method for producing an α-alumina particulate comprises steps of (Ia) and (Ib), or a step of (II):
(Ia) removing water...
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7297321 |
Supermicroporous metal oxides
A new class of supermicroporous mixed oxides, with pore sizes in the 10-20 Å range has been prepared utilizing basic metal acetates. The reactions are carried out in non-aqueous solvent media to...
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7276224 |
Synthesis of nanoporous particles
Methods of producing nanoporous particles by spray pyrolysis of a precursor composition including a reactive precursor salt and a nonreactive matrix salt are provided, wherein the matrix salt is...
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7270704 |
Mixture for fabrication of fireproof high-strength spherical granules and the method of their manufacture
The inventive method for producing refractory high-strength spherical granules consists in separately presintering kaolin and bauxite in a rotational furnace, jointly sintering said components in...
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7265075 |
Hydro-refining catalyst, carrier for use therein and method for production thereof
A method for producing a hydrorefining catalyst of the present invention has a step of preparing an aluminum solution containing phosphorus in a molar ratio of 0.001 to 0.05 with respect to...
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7241336 |
Pyrogenically produced aluminum-silicon mixed oxides
Pyrogenically produced aluminum-silicon mixed oxides with a BET surface of more than 300 m 2 /g and a composition of 0.01 to 99.99% by wt. AI 2 O 3 , remainder SiO 2 are produced in accordance...
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7235224 |
Process for preparing fine metal oxide particles
Disclosed is a process for preparing fine metal oxide particles, comprising the following steps of reacting a reactant mixture comprising i) water, ii) at least one water-soluble metal nitrate and...
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7223379 |
Process for producing aluminum oxide powder
To provide a process for producing an aluminum oxide powder, whereby the content of impurities is controlled by a physical means. A process for producing an aluminum oxide powder, which comprises...
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7220397 |
Modified oxygen reduced valve metal oxides
Pressed material such as anodes are described and formed from oxygen reduced oxide powders using additives, such as binders and/or lubricants. Methods to form the pressed material are also...
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7217408 |
Solubilisation of carbonates by recycling condensates during digestion of monohydrate bauxites under pressure
A method for the production of aluminum from bauxites containing aluminum monohydate of the diaspore or boehmite type which may contain more than 1.5% by weight of calcium carbonates. The ore is...
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7214642 |
Methods of preparing active chromium/alumina catalysts via treatment with sulfate
Methods of preparing a polymerization catalyst are provided that include contacting a support comprising alumina with a sulfating agent and with chromium. In an embodiment in which the chromium is...
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7214363 |
Method for preparing composite microparticles
Composite microparticles having thin coating layers can be simply prepared by bringing a host particle precursor into contact with a flame generated in a burner movably mounted at the bottom of a...
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7211233 |
Method of preparing granules
A method of preparing spherical pellets from a slurry comprising a ceramic powder, a solvent, and any desired additives, by means of a drop-generating orifice to which said slurry is fed is...
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7208446 |
Quasi-crystalline boehmites containing additives
The present invention pertains to a quasi-crystalline boehmite containing additive in a homogeneously dispersed state. Suitable additives are compounds containing elements selected from the group...
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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...
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7157030 |
Composition for filtration particulate material
This invention relates to filtration particulate material for the removal of compounds from fluid streams. More particularly, this invention relates to a composition for filtration particulate...
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7150862 |
Method of manufacturing powder
A method of manufacturing a powder, by which it is possible to adjust the strength of the obtained powder is provided. The manufacturing method of a powder involves a step of preparing a slurry...
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7132094 |
Method of producing hollow alumina particle
A method of producing hollow alumina particles in which the grain size of hollow alumina particles is controlled and in which a high formation ratio of hollow particles is obtained while...
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