Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 8088354 | Hydrothermal process for the preparation of quasi-crystalline boehmite Process for the preparation of quasi-crystalline boehmite comprising the steps of: (a) preparing an aqueous precursor mixture comprising a water-insoluble aluminum source; (b) decreasing the pH of the precursor mixture of step (a) by at least 2 units; (c) increasing... | 01/03/2012 |
| 8052957 | Method of manufacturing flake aluminum oxide using microwave 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 particl... | 11/08/2011 |
| 8043599 | Method for fabricating a high specific surface area mesoporous alumina A method for fabricating a high specific surface area mesoporous alumina is disclosed, which includes the following steps: (a) providing a water solution containing an aluminum salt and a fluoro-surfactant; (b) adding concentrated hydrochloric acid to adjust the PH ... | 10/25/2011 |
| 8043598 | Synthesis of rare earth element-containing alumina nanowires Rare earth element(s) doped alumina nanowires are formed by a thermal evaporation method in which vapor from aluminum powder and vapor from a rare earth element compound (such as an halide) are reacted in an oxygen-containing inert gas stream to form alumina which d... | 10/25/2011 |
| 8007759 | Process for preparing aluminium species A static ion-exchange process for the preparation of a polynuclear Al species comprising the treatment of an aqueous aluminum chloride solution with a hydroxide-form ion-exchange resin at a temperature of from 5° C. to 60° C. for a period of at least 30 minutes. | 08/30/2011 |
| 8007760 | Process for producing enhanced alumina The present invention provides an essentially dry method for preparation of enhanced alumina powders. The first step involves rapid calcination of an aluminum compound to produce alumina powder. The alumina powder is mixed with solid ammonium carbonate and a small a... | 08/30/2011 |
| 7959894 | Flaky alpha-alumina crystal and a method of its preparation The present invention relates to a flaky α-alumina crystal and a preparation method thereof. More particularly, the present invention relates to a flaky α-alumina crystal comprising aluminum oxide and zinc oxide, which is prepared by hydrolyzing an aluminum precur... | 06/14/2011 |
| 7947250 | Process for conversion of aluminum oxide hydroxide 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 m... | 05/24/2011 |
| 7931887 | Hydrogenation of aluminum using a supercritical fluid medium 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 reac... | 04/26/2011 |
| 7906097 | Processes for treating aluminium dross residues 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 chlori... | 03/15/2011 |
| 7858067 | Method for producing alpha-alumina particle The present invention provides a method of producing an α-alumina particle. The method of producing an α-alumina particle comprises steps of: (1) heating a mixture containing an amorphous alumina and a pyrolyzable salt at temperature of not less than ... | 12/28/2010 |
| 7790139 | Method for producing aluminum trihydrates having a high pore volume, aluminum trihydrates produced according to this method and the use thereof 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. | 09/07/2010 |
| 7758845 | Method for producing an alpha alumina particle The present invention provides a method for producing an α-alumina particle. The method for producing an α-alumina particle comprises steps of: (1) placing a powdery mixture containing an aluminum salt and a seed crystal under a circumstance at not less tha... | 07/20/2010 |
| 7691362 | Method for producing an α-alumina power A method for producing an α-alumina powder is provided. T method for producing an α-alumina powder comprising steps of: (1) pulverizing a metal compound having a full width at half maximum (Ho) of a main peak in XRD pattern to ob... | 04/06/2010 |
| 7651676 | Processes for treating aluminium dross residues There is provided a process for preparing aluminium chloride comprising: leaching aluminium dross residues with HCl so as to obtain a mixture comprising a solid and a liquid; and hydrochlorinating the liquid obtained from the mixture, so as to form a precipitate com... | 01/26/2010 |
| 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 to convert the boehmite precursor into boehmite particulate material. ... | 09/01/2009 |
| 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 sufficient volume fraction of a diluent and heat treated to form subst... | 08/18/2009 |
| 7534415 | Mesostructured transition aluminas Mesoporous crystalline alumina compositions and process for the preparation thereof are described. The compositions are useful as catalysts and absorbents. ... | 05/19/2009 |
| 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. ... | 05/12/2009 |
| 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 obtained by controlling the ratio of boehmite mixed with the θ-phase ... | 02/17/2009 |
| 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. ... | 10/28/2008 |
| 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. ... | 10/21/2008 |
| 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 organometalloid liquid precursor(s) by oxidatively treating said liquid in a non-... | 10/21/2008 |
| 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 provides slurries, particularly aqueous slurries, which comprise α-alumi... | 09/09/2008 |
| 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 step before or after the introduction step, wherein steaming is effectiv... | 07/22/2008 |
| 7399459 | Method for manufacturing mesoporous alumina molecular sieve and alumina nanotube and use of the alumina nanotube for storage of H2 A mesoporous alumina molecular sieve and a method of manufacturing a mesoporous alumina mesoporous alumina molecular sieve of the invention is produced without using traditionally used additives. Also, because the size and distribution of the pores can be controlled... | 07/15/2008 |
| 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 high to vaporize the microparticles into metal vapor, and directing the... | 04/15/2008 |
| 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 volume between 0.5-0.75 ml/g. The extrudates have a length of between 2... | 04/01/2008 |
| 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. ... | 04/01/2008 |
| 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 process, water, an acid sufficient to maintain the pH below about 7, wherein... | 03/18/2008 |
| 7341976 | Stabilized boehmite-derived catalyst supports, catalysts, methods of making and using A stabilized catalyst support having improved hydrothermal stability, catalyst made therefrom, and method for producing hydrocarbons from synthesis gas using said catalyst. The stabilized support is made by a method comprising treating a crystalline hydrous alumina ... | 03/11/2008 |
| 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 comprising blending 0.003 mol to 0.01 mol of TaCl5, NbCl | 02/05/2008 |
| 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 from a mixture containing water, a seed crys... | 12/11/2007 |
| 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 which an excess of amine is added. Hydrolysis of the reagents is effe... | 11/20/2007 |
| 7291361 | Image forming process, image-recorded article, liquid composition and ink-jet recording apparatus Disclosed herein is an image forming process for forming an image-recorded article having a coating layer on at least a part of an image formed, which comprises the steps of providing a liquid composition containing a polymer, providing an image-recorded article for... | 11/06/2007 |
| 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 used as a templating medium. Nanoporous aluminum oxide particles produc... | 10/02/2007 |
| 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 order to produce a charging material, granulating, drying and screenin... | 09/18/2007 |
| 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 aluminum; a step of neutralizing the prepared aluminum solution to produce a... | 09/04/2007 |
| 7259129 | Silver-containing catalysts, the manufacture of such silver-containing catalysts, and the use thereof A high activity and high selectivity silver catalyst comprising silver and, optionally, one or more promoters supported on a suitable support material having the form of a shaped agglomerate. The structure of the shaped agglomerate is that of a hollow cylinder havin... | 08/21/2007 |
| 7249723 | Organic solvent dispersed nano-talc slurry The invention provides high surface area talc compositions by a novel hybrid milling method or soaking method. The hybrid milling method comprises dry milling talc powder followed by mixing with water and wet milling to provide a nano-talc slurry with high surface a... | 07/31/2007 |
