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| Number | Title | Issue Date |
| 7776306 | Low energy method of preparing basic copper carbonates A method of forming basic copper carbonates includes providing an aqueous solution comprising copper (II), ammonia, and carbonic acid; and adding sufficient carbon dioxide to precipitate a basic copper carbonate from the aqueous solution. ... | 08/17/2010 |
| 7438895 | Precipitated silica materials exhibiting high compatibility with cetylpyridinium chloride Precipitated silica comprising porous silica particles having a cumulative surface area for all pores having diameters greater than 500 Å of less than 6 m2/g, as measured by mercury intrusion, and a percentage cetylpyridinium chloride (% CPC) Compatibil... | 10/21/2008 |
| 7427449 | Integrated oxygen generation and carbon dioxide absorption method apparatus and systems A method for producing oxygen and absorbing carbon dioxide in a single operation using a solution that contains an oxygen source and a redox partner that can react to form oxygen and a chemical species that can form an insoluble carbonate to precipitate and chemical... | 09/23/2008 |
| 7407639 | Method for preparing particles of a defined size in a reaction vessel The present invention relates to a method of preparing particles of a defined size and morphology, using a reaction of reactants, wherein the reaction is carried out in the presence of rotational forces and wherein the reactants are separated from each other by mean... | 08/05/2008 |
| 7371337 | Zinc oxide powder aggregates present in circular, ellipsoidal, linear and branched form Pyrogenically prepared zinc oxide powder having a BET surface area of from 10 to 200 m2/g, which is in the form of aggregates, the aggregates being composed of particles having different morphologies, and 0-10% of the aggregates being in a circular form, ... | 05/13/2008 |
| 7341704 | Surface-treated calcium carbonate, method for production thereof and resin composition comprising said calcium carbonate The surface-treated calcium carbonate is disclosed which is surface-treated with an organic surface treating agent, said surface-treated calcium carbonate satisfies the particular BET specific surface area (Sw), reduced heat amount per unit specific surface area (As... | 03/11/2008 |
| 7198825 | Method of manufacturing carbonate film, carbonate composite material, and method of manufacturing the same A pressure container is filled with a base material having at least part of the surface coated with an organic matrix including at least one member selected from the specific functional groups, and a material solution containing a carbonate material as a material fo... | 04/03/2007 |
| 7148177 | Method for producing alkali metal catalyst and use thereof for the side-chain alklation of alkyl aromatics The invention relates to a process for the preparation of an alkali metal catalyst by mixing an alkali metal with pulverulent, solid potassium carbonate as support, wherein the potassium carbonate has a specific surface area of at least 0.3 m2/g, and to t... | 12/12/2006 |
| 7132090 | Sequestration of carbon dioxide A process for selectively removing carbon dioxide from a gaseous stream by converting the carbon dioxide to a solid, stable form is provided. In a sequestration process, carbon dioxide enriched air is passed through a gas diffusion membrane to transfer the carbon di... | 11/07/2006 |
| 7105136 | Controlled morphogenesis of copper salts In a method for preparing copper salts from at least one cupriferous and one additional reactant, the reactants are used to prepare micro-emulsions while employing at least one block polymer, the intermediate products obtained this way are mixed and reacted together... | 09/12/2006 |
| 7101519 | Zirconium basic carbonate and methods of making the same Methods of making zirconium basic carbonate are further described which involve titrating an aqueous slurry of sodium zirconium carbonate to a pH of from about 3.5 to about 4.0 with an acidic agent wherein the sodium zirconium carbonate has a moisture content of fro... | 09/05/2006 |
| 7063824 | Beneficiation of zircon This invention relates to a process of treating a zirconium containing product such as zircon. The process comprises providing an alkali fusion decomposed zircon product (AFDZ) formed from reading zircon with a source of alkali metal at elevated temperatures, and tr... | 06/20/2006 |
| 6994839 | Carbonate recycling in a hydrogen producing reaction A process for producing hydrogen gas from a reaction of an organic substance and a base with a recycling of a carbonate or bicarbonate by-product and a regeneration of the base. In one embodiment, reaction of an organic substance and a base produces hydrogen gas and... | 02/07/2006 |
| 6989142 | Precipitated calcium carbonate An abrasive precipitated calcium carbonate is provided that provides excellent cleaning properties without being excessively abrasive or damaging to gums or tooth surfaces. The abrasive, precipitated calcium carbonate has a primary particle size of about 1 μm to ab... | 01/24/2006 |
| 6946055 | Method for recovering an organic solvent from a waste stream containing supercritical CO2 An organic solvent is separated from a waste stream containing supercritical CO2, an organic solvent and etchant contaminants. The process includes separating the supercritical CO2 by subjecting the waste stream to elevated temperature and/or r... | 09/20/2005 |
| 6916762 | Catalyst for fluidized catalytic cracking of heavy hydrocarbon oil and method of fluidized catalytic cracking An FCC catalyst which not only deactivates catalyst poison metals, such as nickel, vanadium and the like, in feedstock oils, inhibits the generation of hydrogen or coke, has excellent cracking activity and bottom oil-treating ability, and can yield a gasoline and LC... | 07/12/2005 |
| 6890497 | Method for extracting and sequestering carbon dioxide A method and apparatus to extract and sequester carbon dioxide (CO2) from a stream or volume of gas wherein said method and apparatus hydrates CO2, and reacts the resulting carbonic acid with carbonate. Suitable carbonates include, but are not ... | 05/10/2005 |
| 6808700 | Dentrifice comprising calcium carbonate granules A dentrifice comprising granules consisting essentially of calcium carbonate particles, the granules having an average size of 50 to 500 um and a crushing resistance of 1 to 20 g/granule, and the calcium carbonate particles having a primary particle size of 0.01 to ... | 10/26/2004 |
| 6787120 | Volume reduction of aqueous waste by evaporative crystallization of burkeite and sodium salts A method of treating aqueous salt solutions to provide a solution suitable for vitrification to a stable glass matrix for long term storage is described. In particular, salt solutions composed of aqueous nuclear waste materials are suitable for treatment by the desc... | 09/07/2004 |
| 6767559 | DASC compositions, process for preparing same and suspensions containing same The present invention provides DASC compositions, which upon introduction into aqueous solutions, form stable, non-gritty suspensions. The present invention also provides stable, non-gritty suspensions comprising the DASC compositions of the present invention admixe... | 07/27/2004 |
| 6749825 | Mesoporous carbonates and method of making Mesoporous metal carbonate structures are formed by providing a solution containing a non-ionic surfactant and a calcium acetate salt, adding sufficient base to react with the acidic byproducts to be formed by the addition of carbon dioxide, and adding carbon dioxid... | 06/15/2004 |
| 6699453 | Spheroidally agglomerated basic cobalt(II) carbonate and spheroidally agglomerated cobalt(II) hydroxide, process for their production and their use The present invention relates to basic cobalt(II) carbonate, agglomerated from fine primary particles and of general composition Co[(OH)2 ]a [CO3 ]1-a, where 0.1ࣘaࣘ0.9, and to spheroidal cobalt(II) hydroxide... | 03/02/2004 |
| 6555075 | Method of preparing zinc carbonate A method for preparing basic zinc carbonate from die casting ash, zinc skimming or zinc ash includes heating urea or a mixture of urea and ammonia and carbon dioxide with water in a closed vessel with zinc ash. After zinc is dissolved in sufficient quanti... | 04/29/2003 |
| 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 |
| 6458335 | Production of powders A process for the production of powders by precipitation from a liquid reaction mixture comprises passing along a tubular reactor a segmented reaction flow comprised of discrete volumes of the reaction mixture separated by discrete volumes of a separating... | 10/01/2002 |
| 6306494 | Fine particulate synthetic chalcoalumite compounds, process for their production, and heat insulator and agricultural film containing the fine particulate synthetic chalcoalumite compounds Novel, fine particulate synthetic chalcoalumite, process for preparation thereof, and a heat insulating agent and agricultural film containing said fine, particulate synthetic chalcoalumite. The above objects are met by synthetic chalcoalumite represented... | 10/23/2001 |
| 6197273 | Method for producing fine spherical particles of carbonate or hydroxide of nickel, cobalt or copper The invention provides a process for production of fine spherical particles of a carbonate or a hydroxide of nickel, cobalt or copper which comprises: dissolving a carbonate or a hydroxide of nickel, cobalt or copper having the general formula (I) M(CO | 03/06/2001 |
| 6193945 | Method of recovering calcium from waste material or contaminated natural calcic material Method of recovering calcium carbonate from waste material or contained natural calcic material. Calcium is recovered by prepariag an aqueous suspension the material containing calcium to be recovered and by lowering the pH of the suspension to pH | 02/27/2001 |
| 6183621 | Basic cobaltous carbonates, process for preparing the same and their use The present invention relates to processes for the production of cobalt(II) carbonates corresponding to the general formula Co[(OH)2 ]a [CO3 ]1-a, cobalt(II) carbonates and cobalt(II) oxalate carbonates obtainab... | 02/06/2001 |
| 6132696 | Manufacture of precipitated calcium carbonate of improved color and stable crystalline form A method for the manufacture of precipitated calcium carbonate from impure calcium oxide of improved color is disclosed. The method comprises admixing impure calcium oxide with an aqueous solution consisting essentially of a salt of at least one compound ... | 10/17/2000 |
| 6086987 | Synthetic paper and inkjet recording paper with the use of the same A synthetic paper made of a stretched resin film; said stretched resin film being obtained by stretching a resin film having as a support a resin composition which contains: (A) from 30 to 80% by weight of a crystalline polyolefin resin; and (B) from 70 t... | 07/11/2000 |
| 5989332 | Slurry containing an agglomerated carbonate-containing pigment A slurry containing water, carbonate-containing pigment, and dispersant consisting of 25-70 % by weight of agglomerated carbonate-containing pigment, 0.1-1.0% by weight of a dispersant, the balance being water up to 100%, can be used advantageously in pap... | 11/23/1999 |
| 5938969 | Fire suppressant powder A fire suppressant powder with particle sizes less than 5 μm is made by a chemical reaction between a gas or vapour of a first material and a vapour or an aerosol of a second material. For example an aerosol of sodium hydroxide droplets may be reacted wi... | 08/17/1999 |
| 5910214 | Process for preparing calcium carbonate A process for producing calcium carbonate particles having an average size of 0.3&#b1;0.1 μm, the process comprising the steps of preparing light calcium carbonate particles of 0.6&#b1;0.4 μm in average size by carbonating calcium hydroxide suspended in... | 06/08/1999 |
| 5879647 | Method for the preparation of fine globular particles of yttrium oxide An improvement is proposed in the so-called urea method for the preparation of fine particles of yttrium oxide, according to which, while an aqueous reaction mixture containing a water-soluble yttrium salt, e.g., nitrate, and urea dissolved therein in spe... | 03/09/1999 |
| 5861133 | Synthetic chalcoalumite compounds and process for producing thereof A synthetic chalcoalumite compound represented by the formula (1) (Zna-x2+ Mx2+)Al43+ (OH)b (An-)c.mH.sub.2 O (1) wherein M2+... | 01/19/1999 |
| 5831123 | Process for producing a granulated material A process for producing a granulated material from a powder mixture containing at least two components, one of which is in crystal or crystalline form and at least one contains water of crystallization and/or is reactive, granulation is carried out in an ... | 11/03/1998 |
| 5777058 | Metallo-oxomeric scrubber compositions Scavengers for removing acidic or corrosive gaseous components from semiconductor process effluents comprising a metallic macromer comprising a coordinated complex of (i) metal coordination atoms linked to (ii) oxomeric moieties selected from the group co... | 07/07/1998 |
| 5679480 | Lithium secondary battery employing a non-aqueous media A lithium secondary battery employing a non-aqueous media in which the carbonaceous anode material is prepared by the calcination of an organic compound obtained by reacting a precursor organic compound with a lithium salt.... | 10/21/1997 |
| 5552084 | Free-flowing potassium bicarbonate composition This invention provides a process for producing a particulate potassium bicarbonate composition which maintains its free-flow properties when stored under ambient temperature and relative humidity conditions. In the process, particulate potassium bicarbon... | 09/03/1996 |
