| Patents for C01F 11 - Compounds of calcium, strontium, or barium (8,019) |
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| 01/16/2003 | US20030012724 Minimizing spatial-dispersion-induced birefringence |
| 01/15/2003 | EP1274655A1 Method for treating and upgrading effluents containing metallic sulphates using an ammonia addition step |
| 01/15/2003 | EP1027286B1 Process and apparatus for preparing precipitated calcium carbonate |
| 01/15/2003 | CN1391696A Process for the treatment of radioactive graphite |
| 01/09/2003 | US20030007921 Method and apparatus for preparing rare earth-activated barium fluorohalide based phosphor |
| 01/09/2003 | US20030005552 Adding an inorganic compound to a solution, a solid which is substantially insoluble; promoting crystallization or precipitation in the solution; separating crystals or precipitate; quality image |
| 01/08/2003 | EP1272427A1 Method for producing precipitated calcium carbonate |
| 01/07/2003 | US6503475 Milling; nanosized grains of precursor metal compound uniformly dispersed in nonreactant diluent; heat conversion to metal oxide; dissolution removal of diluent; such as cerium oxide from cerium hydroxide and sodium chloride |
| 01/03/2003 | WO2003000592A1 Process for producing calcium carbonate in shell-origin shape |
| 01/02/2003 | US20030000456 Beads of a polycrystalline alkali-metal or alkaline-earth metal fluoride, their preparation, and their use for preparing optical single crystals |
| 01/01/2003 | CN1388827A Synthesis of nanoparticles |
| 01/01/2003 | CN1388057A Prepn of fluoride and nano composite fluoride particle |
| 12/31/2002 | US6500400 Process for preparing precipitated calcium carbonates |
| 12/25/2002 | CN1097094C Method for solubilization of metal component from non-soluble fluoride-contg. Ta-Nb ore |
| 12/25/2002 | CN1097031C Precipitated calcium carbonate and method for production thereof |
| 12/24/2002 | US6497850 Production of low sodium lithium carbonate and lithium chloride from a brine concentrated to about 6.0 wt % lithium are disclosed. methods and apparatus for direct recovery of technical grade lithium chloride from the concentrated brine |
| 12/19/2002 | US20020192145 Method, apparatus and use of chelating agents for the purification of calcium sulphate |
| 12/19/2002 | US20020192124 Reacting depleted uranium fluoride with steam to produce uranium oxyfluoride and hydrogen fluoride, reacting uranium oxyfluride with steam producing uranium oxide; and HF and O2 by-products, cooling HF and reacting with calcium carbonate |
| 12/19/2002 | US20020189527 Preparation of crystals |
| 12/18/2002 | CN1385370A High-purity barium carbonate productive technology for electronic material |
| 12/17/2002 | CA2225798C Liquid medium extraction purification method |
| 12/12/2002 | US20020188052 Barium ferrite filler; magnetic tapes |
| 12/12/2002 | US20020187387 Nano-ionic products and devices |
| 12/10/2002 | CA2114652C Process for the preparation of a calcium sulphate-based aqueous suspension |
| 12/05/2002 | DE10118259C1 Verfahren zur Anreicherung von Radium aus bariumsulfathaltigen Mineralstoffgemischen A method for enriching radium from mixtures of mineral barium sulfate |
| 12/03/2002 | US6488769 Fluoride refining method and fluoride crystal manufacturing method, and optical part and aligner using same |
| 12/03/2002 | CA2206935C Process for production of radiostrontium |
| 11/28/2002 | US20020176987 Ink comprising: a non-stoichiometric non-equilibrium nanostructured material; device such as electronics using such a material |
| 11/28/2002 | US20020176813 Method and apparatus for continuous gas liquid reactions |
| 11/27/2002 | EP1260482A1 Silica-calcium carbonate composite particle |
| 11/27/2002 | CN1094961C Ink-jet recording paper with novel precipitated calcium carbonate pigment |
| 11/27/2002 | CN1094900C Apparatus and process for preparation of precipitade calcium carbonate |
| 11/26/2002 | US6484908 Pressurized piston pusher |
| 11/21/2002 | WO2002092701A1 Fine particle size lime slurries and their production |
| 11/21/2002 | US20020172826 Nanoscale catalyst compositions from complex and non-stoichiometric compositions |
| 11/21/2002 | US20020172636 Process for the continuous production of precipitated calcium carbonate |
| 11/21/2002 | US20020170593 Non-stoichiometric non- equilibrium material, and the material is a nanostructured material. |
| 11/21/2002 | CA2444916A1 Fine particle size lime slurries and their production |
| 11/20/2002 | EP1257604A2 Barium sulphate, method for producing same and the use thereof |
| 11/14/2002 | US20020168522 Nanotechnology for electronic and opto-electronic devices |
| 11/14/2002 | US20020166500 Calcium fluoride crystal and method and apparatus for producing the same |
| 11/13/2002 | EP1256549A1 Method for producing calcium carbonate |
| 11/12/2002 | US6479029 Micronized alkaline earth metal carbonate |
| 11/07/2002 | WO2002088466A1 Method and device for charging fibres contained in a fibrous suspension with calcium carbonate |
| 11/07/2002 | WO2001025001A9 Beads of polycrystalline alkali-metal or alkaline-earth metal fluoride, their preparation and their use |
| 11/07/2002 | US20020164482 Nanotechnology for biomedical products |
| 11/07/2002 | US20020164280 Process for preparing precipitated calcium carbonates |
| 11/07/2002 | CA2445658A1 Method and device for charging fibres contained in a fibrous suspension with calcium carbonate |
| 11/06/2002 | EP0754163B1 Metal oxide composites and method for destruction of unwanted fluids using such composites |
| 11/06/2002 | CN1377831A Process for preparing super fine deposited barium sulphate |
| 11/06/2002 | CN1377830A Producing light calcium carbonate from calcium carbide waste slurry |
| 11/05/2002 | US6475459 Process for preparing calcium carbonate particles |
| 11/05/2002 | US6475445 Calcium sulfide oxidation method and apparatus |
| 10/31/2002 | WO2002085788A1 Process for mineral carbonation with carbon dioxide |
| 10/31/2002 | US20020160191 Low maturing temperature porcelain compositions useful for the fabrication of dental restorations. |
| 10/31/2002 | US20020160190 Nanotechnology for magnetic components |
| 10/31/2002 | DE10120635A1 Verfahren und Vorrichtung zum Beladen von Fasern mit Calciumcarbonat A method and apparatus for loading fibers with calcium carbonate |
| 10/31/2002 | CA2444576A1 Process for mineral carbonation with carbon dioxide |
| 10/24/2002 | WO2002083565A1 Method for enriching radium from mixtures of mineral substances containing barium sulfate |
| 10/24/2002 | US20020155056 Method for preparing barium fluorohalide-base crystal |
| 10/24/2002 | US20020155055 Forming dispersant- free aqueous suspension of calcium carbonate; wet-grinding to produce a first calcium carbonate having a first steepness ratio; aging suspension; to produce a second calcium carbonate having a second steepness ratio |
| 10/24/2002 | CA2443693A1 Method for enriching radium from mixtures of mineral substances containing barium sulfate |
| 10/23/2002 | CN1375456A Nano level active calcium carbonate for special use |
| 10/17/2002 | US20020148582 Water, calcium carbonate, and an acid- stabilizer selected from a water soluble calcium salt, a weak acid, and a chelating agent, a mixture of water souluble calcium salt and chelating agent, a mixutre of calcium salt and a weak acid |
| 10/16/2002 | EP0906084B1 Toothpaste composition comprising a silica and calcium carbonate based abrasive or additive, compatible with fluorine |
| 10/16/2002 | CN1374253A Method of separating precipitated super-fine barium sulfate grains from suspension liquid containing impurity ions |
| 10/10/2002 | WO2002079550A1 Process for preparing fluoride monocrystals |
| 10/10/2002 | WO2002079549A2 Preparation of 157nm transmitting barium fluoride crystals with permeable graphite |
| 10/10/2002 | WO2002079089A1 Methods of making cesium salts and other alkali metal salts |
| 10/09/2002 | EP1114105A4 Precipitated calcium carbonate product having improved brightness and method of preparing the same |
| 10/09/2002 | CN1373088A Acidifying process for refining strontium carbonate |
| 10/09/2002 | CN1373087A Barium-removing process for preparing strontium carbonate from high-Ba celestite ore by metathesis method |
| 10/03/2002 | US20020143209 Reacting cesium sulfate containing solution with lime to form solution comprising cesium hydroxide and residue comprising calcium sulfate; removing residue from solution; converting the cesium hydroxide in solution to cesium salt |
| 09/19/2002 | WO2002072895A1 A method for the removal of calcium from a zinc process sulfate solution |
| 09/19/2002 | WO2002072475A1 Barium sulfate-based powders and cosmetics containing the same |
| 09/19/2002 | DE10208157A1 Production of fluoride crystal for use in e.g., various optical elements, by dehydrating raw material of fluoride by heating crucible for accommodating raw material of fluoride, and exhausting inside gas of the crucible |
| 09/19/2002 | CA2439914A1 A method for the removal of calcium from a zinc process sulfate solution |
| 09/18/2002 | EP1131381B1 Process for hydrophobicizing particles, and their use in polymer dispersions |
| 09/18/2002 | CN1090984C Drier compsn. |
| 09/17/2002 | US6451281 Blending hydrated lime and water to form a mixture, mixing the hydrated lime and water mixture under high shear to form a slurry and storage. adjusting the percent weight solids of the hydrated lime and water slurry to a predetermined weight |
| 09/17/2002 | US6451274 A fluoride fixing reactor for forming calcium fluoride by allowing cooled hydrogen fluoride to contact calcium fluoride by allowing cooled hydrogen fluoride to contact calcium carbonate; and wherein the processing process comprises a dry |
| 09/17/2002 | US6451268 Moving the liquid in a serpentine path that moves horizontally and vertically through individual chambers or stations in an elongated tank or reactor and introducing a reactant gas into the liquid in one or more of the stations or chambers as the |
| 09/17/2002 | US6451106 Beads of polycrystalline alkali-metal or alkaline-earth metal fluoride, their preparation, and their use for preparing optical single crystals |
| 09/10/2002 | CA2192540C Treatment of solid-containing material derived from effluent |
| 09/06/2002 | WO2002068330A2 Process and apparatus for the production of calcium bromide by liquid-liquid extraction |
| 09/04/2002 | CN1090153C Seeding of aragonite calcium carbonate and product thereof |
| 09/04/2002 | CN1090152C Synthetic chalcoalumite compounds and process for producing thereof |
| 09/03/2002 | US6444142 Method of preparing barium fluoroiodide, iodine-containing barium fluorohalide phosphor, and radiation image conversion panel |
| 08/27/2002 | US6440377 Neutralization of the waste acid with a calcium compound subject to precipitation; production of gypsum and also of an iron oxide pigment |
| 08/22/2002 | WO2002064505A1 Process for reductive bleaching of alkaline earth metal carbonates |
| 08/22/2002 | WO2001085412A3 Production process of high-purity gypsum |
| 08/22/2002 | CA2438039A1 Process for reductive bleaching of alkaline earth metal carbonates |
| 08/21/2002 | EP1232226A1 Synthesis of nanoparticles |
| 08/20/2002 | US6436447 Evacuant |
| 08/14/2002 | EP1230160A1 High speed manufacturing process for precipitated calcium carbonate employing sequential pressure carbonation |
| 08/08/2002 | WO2002060986A2 Method and apparatus for production of precipitated calcium carbonate and silicate compounds in common process equipment |
| 08/08/2002 | WO2002060817A1 Gypsum decontamination process |
| 08/07/2002 | EP1228513A2 Process for the treatment of radioactive graphite |
| 08/07/2002 | EP1228000A1 Production of fumed silica |
| 08/07/2002 | EP1064227B1 METHOD FOR REPROCESSING WASTE ACID RESULTING FROM TiO2 PRODUCTION |