| Patents for C01F 11 - Compounds of calcium, strontium, or barium (8,019) |
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| 08/03/2005 | EP1559682A1 Method of purifying metal salt, method of deacidifying titanium material and method of producing the same |
| 08/03/2005 | EP1324949A4 Impurity removal |
| 08/03/2005 | CN1648291A Process for preparing whisker calcium sulfate |
| 08/03/2005 | CN1648051A Method for preparing crystal nucleus prefabricated nano calcium carbonate and special equipment |
| 07/28/2005 | WO2005068358A1 Production of 'useful material(s)' from waste acid issued from the production of titanium dioxyde |
| 07/28/2005 | DE10257696A9 Ultratrockenes Calciumcarbonat Ultra Dry calcium carbonate |
| 07/27/2005 | EP1557442A1 Method for surface treatment of precipitated calcium carbonate |
| 07/27/2005 | EP1556308A1 Method for production of nitrate-containing products from undercooling melts |
| 07/27/2005 | EP1274655B1 Method for treating and upgrading effluents containing metallic sulphates using an ammonia addition step |
| 07/27/2005 | CN1644525A Manufacture of calcium sulfate and oil component mixture |
| 07/27/2005 | CN1644507A Production of light calcium carbonate |
| 07/27/2005 | CN1212273C Preparation method of surface modified nano calcium carbonate |
| 07/26/2005 | US6921522 Production of lithium compounds directly from lithium containing brines |
| 07/21/2005 | US20050158226 Method for the production of precipitated calcium carbonate with a high degree of brightness |
| 07/20/2005 | CN1641077A Method for preparing aragonite type calcium carbonate whisker |
| 07/20/2005 | CN1211286C Industrial process for preparing nm-class active calcium carbonate |
| 07/13/2005 | EP1553053A1 The use of calcium carbonate in an acidic aqueous medium |
| 07/13/2005 | CN1639272A Method for reducing the size of metallic compound particles |
| 07/13/2005 | CN1639082A Device for drying and/or firing gypsum |
| 07/13/2005 | CN1639066A Process for the production of precipitated calcium carbonates and product produced thereby |
| 07/13/2005 | CN1636878A Prepn process of naometer calcium carbonate with non-polar surface |
| 07/13/2005 | CN1636877A Prepn process of spherical nanometer calcium carbonate |
| 07/13/2005 | CN1210538C Drying technology of light calcium carbonate |
| 07/13/2005 | CN1210206C Method for recycling fine calcium fluoride powder |
| 07/12/2005 | US6916872 Drug delivery; improved refractive index, transparency to light, reflection, permeability, coercivity, magnetic hystereisis, breakdown voltage, biocompatability, and wear resistance |
| 07/07/2005 | WO2005061386A1 Method and system for growing larger precipitated calcium carbonate crystals |
| 07/07/2005 | DE10357116A1 Desagglomeriertes Bariumsulfat Deagglomerated barium sulfate |
| 07/06/2005 | CN1634767A Method for producing nano calcium carbonate particles for printing ink |
| 07/05/2005 | US6913742 Granulating or chemically treating a powdered inorganic salt containing an organic material, and then subjecting the material to heat treatment. |
| 07/05/2005 | US6913648 Preparing crystals of rare earth element-activated, alkaline earth metal fluorohalide based stimulable phosphor precursor |
| 07/05/2005 | CA2369806C Process for making calcium chlorides |
| 06/30/2005 | US20050139483 Method of purifying metal salt, method of deacidifying titanium material and method of producing the same |
| 06/30/2005 | DE10392432T5 CaCO3/SiO2nH2O-Nanocomposit-Partikel und SiO2 nH 2O-Hohlstruktur-Nanomaterialien und Synteheseverfahren CaCO3 / SiO2nH2O nanocomposite particles and SiO 2 nH 2O-hollow structural nanomaterials and Synteheseverfahren |
| 06/29/2005 | EP1546268A1 Grinding method for inorganic particulate material |
| 06/29/2005 | CN1632961A Method for preparing layered cobalt base oxide thermoelectric material |
| 06/29/2005 | CN1631792A Single dispersing micron chopped fiber-like aragonite type calcium carbonate and preparation method thereof |
| 06/29/2005 | CN1631791A Superfine active calcium carbonate and its preparation process and application |
| 06/29/2005 | CN1631790A Preparation method and application of calcium carbonate particle |
| 06/29/2005 | CN1631789A Method for preparing nano calcium carbonate particle |
| 06/22/2005 | CN1629073A Preparation of light calcium carbonate by calcite |
| 06/22/2005 | CN1207210C Method for preparing micropowdered barium sulfate |
| 06/22/2005 | CN1207209C Eddy flow process for preparing ultramicro calcium carbonate precipitate |
| 06/21/2005 | CA2274784C Process for preparing calcium carbonate |
| 06/16/2005 | WO2005054133A1 Deagglomerated barium sulfate |
| 06/16/2005 | US20050127214 Method for reducing the size of metallic compound particles |
| 06/15/2005 | EP1539337A1 Method for producing aqueous suspensions of mineral fillers. the thus obtained aqueous suspensions of mineral fillers and the use thereof |
| 06/15/2005 | CN1628078A Continuous method and apparatus for manufacture of uniform size flake or powder |
| 06/15/2005 | CN1206072C Technique for continuously preparing super fine nano powder by using precipitation method and its specialized equipment |
| 06/08/2005 | CN1623903A Process for producing calcium carbonate |
| 06/02/2005 | US20050115490 Preparation of 157NM transmitting barium fluoride crystals with permeable graphite |
| 06/02/2005 | DE19802180B4 Verfahren zur Verbesserung des Betriebes eines Vakuumbandfilters zur Entwässerung und Waschung einer Gipssuspension A method for improving the operation of a vacuum belt filter for dewatering and washing a gypsum suspension |
| 06/01/2005 | CN2702998Y Moisture-containing industrial phosphogypsum calcining furnace |
| 06/01/2005 | CN1621354A Preparation method of Ca3Co2O6 based oxide thermoelectric material |
| 06/01/2005 | CN1621351A Method for producing high activity calcium oxide |
| 06/01/2005 | CN1204052C Method for producing light active calcium carbonate |
| 06/01/2005 | CN1204043C Synthesis method for powder ceramic complexes of refractory metals |
| 05/26/2005 | WO2005047184A1 Calcium hydroxide, resin composition containing same, and formed article |
| 05/26/2005 | WO2005014483A3 Calco-magnesian aqueous suspension and method for the production thereof |
| 05/25/2005 | EP1532710A1 Perovskite-based fuel cell electrode and membrane |
| 05/24/2005 | US6896858 Gas refining system |
| 05/19/2005 | WO2005044728A2 Methods and apparatus for producing precipitated calcium carbonate |
| 05/19/2005 | WO2004106564A3 Method for recovering at least one metallic element like cesium from ore |
| 05/19/2005 | US20050106110 Stabilized vaterite |
| 05/19/2005 | CA2543875A1 Methods and apparatus for producing precipitated calcium carbonate |
| 05/18/2005 | CN1617834A Process for recovering low sodium salt from bittern |
| 05/18/2005 | CN1202013C Process for united producing barium hydroxide and manganese sulfate |
| 05/18/2005 | CN1202008C Method of producing potassium sulfate |
| 05/17/2005 | CA2199109C Synthetic chalcoalumite compounds and process for producing thereof |
| 05/12/2005 | US20050100503 Method of decomposing gypsum to sulfur dioxide and the apparatus thereof |
| 05/11/2005 | EP1529754A1 A method of producing a rounded powder of metal fluoride compounds |
| 05/11/2005 | CN1200880C Regenerating circulation process of producing strontium carbonate |
| 05/10/2005 | US6890509 Desulphatation of bittern (by-product of salt industry), evaporation of bittern in solar pans and processing of solid mixture with water to produce a mixture of sodium and potassium chlorides |
| 05/10/2005 | US6890419 Electrochemical reaction of a hydrocarbon oxidate with water or a base using low voltages and low temperatures; alcohols, ethers, carboxylic acids, aldehydes, and ketones as reactants; electrolysis of methanol using potassium hydroxide |
| 05/05/2005 | US20050095190 Quantitatively converting calcium sulfide formed in integrated gasification combined cycle to sulfur dioxide and collecting for production of sulfuric acid. |
| 05/03/2005 | CA2350726C Process and apparatus for treating foundry sludge to recover magnesium |
| 04/28/2005 | US20050089466 Methods and apparatus for producing precipitated calcium carbonate |
| 04/26/2005 | US6884269 Continuous method for manufacture of uniform size flake or powder |
| 04/21/2005 | WO2004099077A3 Synthetic carbide lime filler composition, a method of making same, and its use as a filler in thermoplastic resins |
| 04/21/2005 | WO2004098740A3 Process for sequestering carbon dioxide and sulfur dioxide |
| 04/21/2005 | US20050084608 Surface treatment; nanomaterial containing core and cladding; heat treatment |
| 04/21/2005 | US20050084442 producing calcium fluoride by causing a used chemical including hydrofluoric acid to react with calcium carbonate, the calcium fluoride being produced starting from a pH exceeds 7 and the calcium fluoride is recovered from a reaction column when the pH becomes 7 or below |
| 04/20/2005 | CN1607172A Method for modifying celestite high temperature reduction by adding catalyst |
| 04/14/2005 | WO2005012178A8 Reduction of the concentration of undesired compounds |
| 04/14/2005 | US20050079117 Slaking quick lime with white liquor; forming calcium carbonate; continuous adding to green liquor; used for paper filler |
| 04/07/2005 | US20050074381 Impurity removal |
| 04/06/2005 | EP1296887A4 Phosphate acidulation utilizing hf acid |
| 04/06/2005 | CN1195683C Lime treatment |
| 03/30/2005 | CN1194898C Process for preparing both barium sulfate and calcium chloride from waste ardealite dregs |
| 03/24/2005 | WO2005026267A1 Metallic pigment and synthetic resin composition having the same mixed therein |
| 03/24/2005 | WO2005026047A1 Production of metal sulfamates |
| 03/24/2005 | WO2005000766A3 Method of preparing stabilised anhydrite iii from plaster and, hydraulic binder thus obtained |
| 03/23/2005 | CN1598083A Process for preparing calcium sulfate whisker |
| 03/23/2005 | CN1597531A Modified nanometer calcium carbonate and its preparation method |
| 03/23/2005 | CN1597530A Biomimetic mintralization in situ preparation method of functional nanometer calcium carbonate |
| 03/23/2005 | CN1193934C Sulfate radical eliminating process for underground bittern |
| 03/23/2005 | CN1193810C Method for Preparing nano crystal of ionic compound |
| 03/16/2005 | EP1514589A1 Process and agent for the denitration of exhaust gases |
| 03/16/2005 | EP1513772A1 Continuous method and apparatus for manufacture of uniform size flake or powder |
| 03/16/2005 | EP1513771A1 Process for the production of precipitated calcium carbonate and product produced thereby |
| 03/16/2005 | CN1594175A Manufacturing method of inside burning type construction gypsum |