Patents for C01F 11 - Compounds of calcium, strontium, or barium (8,019)
04/2004
04/08/2004US20040067355 Nanoscale powders dispersed on coarser carrier powders
04/06/2004US6716408 Procedure for preparing silica from calcium silicate
04/01/2004WO2004026973A1 Grinding method
04/01/2004WO2004000450A3 Superfine powders and methods of manufacture of said powders
04/01/2004WO2003064348A3 Use of a precipitated calcium carbonate (pcc) originating from sugar as a raw material in the ceramic industry
04/01/2004CA2494195A1 Grinding method
03/2004
03/31/2004CN1485468A Process for preparing column shape nanometer barium fluoride crystal
03/30/2004US6713176 Processing and manufacturing methods enabled using non-stoichiometric nanomaterials
03/25/2004WO2004024628A1 Synthetic dolomite compound and method for production thereof
03/24/2004CN1484616A Process for generation of finely divided calcium carbonate from calcium carbonate rich industrial by-product
03/23/2004CA2208150C Manufacture of precipitated calcium carbonate of improved colour
03/17/2004EP1147061B1 Production of concentrated carbonate suspensions
03/17/2004CN1482069A Process for preparing Fe hydroxide and oxide
03/16/2004US6706211 Process for producing inorganic fine grains, inorganic fine grains, rare earth element-activated barium fluorohalide fluorescent substance, and radiation image conversion panel
03/11/2004WO2004020077A1 METHOD AND APPARATUS FOR DESULFURIZATION COMPRISING INCORPORATING NO AND/OR NO2 IN GAS TO BE TREATED, TO RECOVER SO2 AS CaSO4
03/11/2004US20040047790 Wet process phosphoric acid, which comprises: dividing raw materials which contain phosphate rock slurry and sulfuric acid into two parts, and then feeding these two parts into two reactors separately. Slurrying sulfuric acid, phosphate
03/10/2004EP1396474A2 The use of calcium carbonate in an acidic aqueous media
03/10/2004CN1141168C Method of processing sulfur-containing materials derived from flue gas desulfurization or other sources
03/04/2004WO2004018369A1 Method of recovering fluorine
03/04/2004US20040042956 Method of recovering chlorine gas from calcium chloride
03/04/2004US20040041126 Reacting a barium compound, halogen compound and rare earth compound in aqueous solution containing water soluble polymer; dehydration; firing
03/03/2004EP1204599B1 Method of producing surgical grade calcium sulphate
03/03/2004CN1140455C Method and equipment for producing calcium chloride directly by waste liquid of ammonia-soda using plate-type evaporator
03/02/2004US6699318 Process for preparing and modifying synthetic calcium carbonate
02/2004
02/26/2004WO2002068330A3 Process and apparatus for the production of calcium bromide by liquid-liquid extraction
02/25/2004EP1391422A2 Method of recovering chlorine gas from calcium chloride
02/25/2004EP1390434A1 Fine particle size lime slurries and their production
02/25/2004CN1139630C Polyefin materials suitable for optical fiber cable components
02/23/2004CA2411488A1 Method of recovering chlorine gas from calcium chloride
02/19/2004DE10235729A1 Production of micro- and nano-particles involves chemically precipitating in aqueous systems by adding tensides and polyelectrolytes which stabilize precipitated particles and have low miscibility with water
02/17/2004US6692720 Method for producing sodium chloride crystals
02/12/2004WO2004013925A1 Perovskite-based fuel cell electrode and membrane
02/12/2004WO2004012849A1 Method for producing aqueous suspensions of mineral fillers. the thus obtained aqueous suspensions of mineral fillers and the use thereof
02/12/2004WO2003078348A3 Method of improving material comprising a pozzolanic component
02/12/2004US20040028603 Carbonate recycling in a hydrogen producing reaction
02/11/2004CN1473783A Process for preparing super fine bitter spar and use of super fine bitter spar
02/04/2004EP1386036A1 Method and device for charging fibres contained in a fibrous suspension with calcium carbonate
02/04/2004CN1473134A Impurity removal
02/04/2004CN1137051C Process for preparing granular calcium chloride and its sphericizing granulator
02/03/2004US6685908 Reacting an aqueous calcium hydroxide slurry with carbon dioxide; high quality white pigment; low specific gravity
01/2004
01/28/2004CN1470455A Composite cerium-zirconium-barium oxides and preparing method thereof
01/27/2004US6682775 Particulate carbonates and their preparation and use in breathable film
01/27/2004CA2136097C Particulate caf2 agent for improving the machinability of sintered iron-based powder
01/22/2004US20040013596 Ppc production
01/22/2004DE10230592A1 Verfahren zur Herstellung von Calciumnitrat A method for producing calcium nitrate
01/20/2004US6680086 Method for making paper, assembly for implementing the method and paper product produced by the method
01/14/2004EP1380675A1 Method for reducing oxygen component and carbon component in fluoride
01/14/2004EP1379469A1 Process for mineral carbonation with carbon dioxide
01/13/2004US6676914 Producing storage stable, transportation stable, high purity, high quality phosphoric acid
01/08/2004US20040005485 Nanostructured powders and related nanotechnology
01/08/2004US20040005267 Production of lithium compounds directly from lithium containing brines
01/07/2004EP1377521A1 Method for enriching radium from mixtures of mineral substances containing barium sulfate
01/07/2004CN1466546A Process for generation of precipitated calcium carbonate from calcium carbonate rich industrial byproduct
01/07/2004CN1465528A Novel process for producing calcium nitrite
01/02/2004EP1375427A1 Barium sulfate-based powders and cosmetics containing the same
01/02/2004EP1373602A1 Process for preparing fluoride monocrystals
01/02/2004EP1373141A1 Methods of making cesium salts and other alkali metal salts
12/2003
12/31/2003WO2004000450A2 Superfine powders and methods of manufacture of said powders
12/30/2003US6669778 Preparation of crystals
12/25/2003US20030234304 Grinding a combination of mineral particles with a dry separation agent, e.g. sodium chloride, to a predetermined particle size; removing the agent by washing with a solvent, e.g., water; nanostructure; antiagglomerants; efficiency
12/24/2003WO2003106345A1 Continuous method and apparatus for manufacture of uniform size flake or powder
12/24/2003WO2003106344A1 Process for the production of precipitated calcium carbonates and product produced thereby
12/24/2003CA2490026A1 Process for the production of precipitated calcium carbonates and product produced thereby
12/18/2003US20030232000 Continuous method and apparatus for manufacture of uniform size flake or powder
12/17/2003CN1461731A Preparation method of nanometer grade super fine calcium carbonate
12/17/2003CN1131172C Process for preparing nm-class calcium carbonate
12/16/2003US6663843 Method of producing barium-containing composite metal oxide
12/16/2003CA2136098C Particulate caf2 and baf2 agent for improving the machinability of sintered iron-based powder
12/11/2003WO2003045610A3 Nano-dispersed powders and methods for their manufacture
12/11/2003US20030228251 Production of lithium compounds directly from lithium containing brines
12/03/2003EP1366201A1 A method for the removal of calcium from a zinc process sulfate solution
12/03/2003EP1365993A1 Process for reductive bleaching of alkaline earth metal carbonates
11/2003
11/27/2003WO2003097529A1 CaCO3/Si2O • nH2O NANOCOMPOSITE PARTICLES, Si2O • nH2O NANOMATERIAL AND METHOD OF PRODUCING THE SAME
11/26/2003EP1363971A1 Elastomeric compositions containing surface treated barium sulfate
11/25/2003US6652967 Nano-dispersed powders and methods for their manufacture
11/25/2003US6652820 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
11/20/2003US20030213937 Precipitated aragonite and a process for producing it
11/19/2003EP1362008A1 Method for preparing high quality barium-titanate based powder
11/19/2003CN1456508A Method for producing light active calcium carbonate
11/18/2003US6649326 Photolithographic method and UV transmitting fluoride crystals with minimized spatial dispersion
11/13/2003WO2003064323B1 A process for recovery of low sodium salt from bittern
11/13/2003US20030212179 Slurry containing multimetallic filler
11/13/2003US20030209057 Controlling particle size of powder; mixing, heating metal particles in matrix
11/11/2003USRE38301 Precipitated calcium carbonate; carbonating aqueous lime producing scalenohedral, rhombohedral, or aragonite crystal containing suspension; dewatering and high shear comminuting; high opacity and brightness
11/06/2003WO2003091156A1 Stabilization of the viscosity of formamidine sulfinic acid bleached calcium carbonate slurries
11/06/2003WO2003020642B1 Precipitated aragonite and a process for producing it
11/06/2003US20030207978 Drug delivery; improved refractive index, transparency to light, reflection, permeability, coercivity, magnetic hystereisis, breakdown voltage, biocompatability, and wear resistance
11/06/2003US20030207977 Drug delivery; improved refractive index, transparency to light, reflection, permeability, coercivity, magnetic hysteresis, breakdown voltage, biocompatability, and wear resistance
11/06/2003US20030207976 Thermal properties modified by powder size; whisker type fillers; drug delivery
11/06/2003US20030207975 Improved wear resistance/biocompatibility
11/06/2003US20030207112 A pigment with modified properties because of the powder size being below 100 nanometers. Blue, yellow and brown pigments are illustrated. Nanoscale coated, un-coated, whisker inorganic fillers are included. Stoichiometric and
11/06/2003US20030206851 Mesoporous carbonates and method of making
11/05/2003CN1454182A Method for granulating calcium chloride hydrate and granulation apparatus
11/05/2003CN1453216A Eddy flow process of preparing ultramicro calcium carbonate precipitate
10/2003
10/30/2003US20030202929 Stabilization formamidesulfinic acid bleach by adding metal compound, which forms water insoluble precipitates, to slurry
10/29/2003CN1451616A Method for treating high-concentration sulfur dioxide waste liquid
10/23/2003WO2003086972A1 Method for producing a halide brine
10/23/2003US20030199624 Conductive nanocomposite films
10/23/2003US20030198589 Form alkali metal using reducing agent
10/22/2003CN1450976A Method and apparatus for producing hydrogen fluoride
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