| Patents for C01F 11 - Compounds of calcium, strontium, or barium (8,019) |
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| 08/07/2002 | CN1362360A Production process of quarternary carbonate powder |
| 08/06/2002 | US6428764 Process for the production of calcium fluoride |
| 08/01/2002 | WO2002058874A1 Electrodischarge wire machining and power supply for electrodischarge wire machining |
| 07/31/2002 | EP1226028A1 Beads of polycrystalline alkali-metal or alkaline-earth metal fluoride, their preparation and their use |
| 07/31/2002 | CN1361063A One-step carbonization process of preparing cubic calcium carbonate of 80-100 nm size |
| 07/30/2002 | US6425973 Treatment of solid containing material derived from effluent |
| 07/30/2002 | CA2107472C Production of phosphoric acid and hydrogen fluoride |
| 07/25/2002 | WO2001007365A9 High speed manufacturing process for precipitated calcium carbonate employing sequential pressure carbonation |
| 07/24/2002 | CN1359986A Process for preparing flaky heavy calcium carbonate |
| 07/24/2002 | CN1088040C Process for preparing calcium carbonate |
| 07/17/2002 | EP1222146A1 Method for the continuous production of precipitated calcium carbonate |
| 07/16/2002 | US6419853 Barium (bromide or iodide) fluoride |
| 07/10/2002 | CN1357492A Amorphous La1-xSrxMnO3-5 compound and its prepn |
| 07/09/2002 | US6416727 Apparatus and process for the preparation of precipitated calcium carbonate |
| 07/09/2002 | US6416723 Method for reprocessing waste acid to form gypsum and iron oxide |
| 07/04/2002 | US20020084050 Filler for use in paper manufacture and procedure for producing a filler |
| 07/03/2002 | EP1218292A1 Calcium oxide product and method for making same |
| 07/02/2002 | US6414074 Mixture containing addition polymer |
| 07/02/2002 | US6413365 Reacting carbon dioxide and/or ozone gases with calcium oxide and/or calcium hydroxide; crystallization |
| 06/27/2002 | US20020079476 Applications and devices based on nanostructured non-stoichiometric substances |
| 06/26/2002 | EP1064223B1 METHOD FOR REPROCESSING WASTE ACID RESULTING FROM TiO2 PRODUCTION |
| 06/25/2002 | US6409980 Process and apparatus for treating foundry sludge to recover magnesium |
| 06/19/2002 | CN1354135A Non-scaling production method of calcium chloride by directly using waste liquor of ammonia-soda process and plate-type evaporator |
| 06/19/2002 | CN1086363C Process for preparing calcium carbonate |
| 06/13/2002 | WO2002024594A3 Method for producing calcium carbonate |
| 06/12/2002 | EP1212259A1 Flowable alkaline fluorides and alkaline earths fluorides |
| 06/12/2002 | EP1177093A4 Surface treated barium sulfate and method of preparing the same |
| 06/12/2002 | CN1353672A Method, apparatus and use of chelating agents for purification of calcium sulphate |
| 06/11/2002 | US6402824 Multistage grinding; slurrying; centrifuging |
| 05/30/2002 | WO2001083374A3 Method for producing calcium nitrate granules |
| 05/30/2002 | US20020064251 Process for the treatment of radioactive graphite |
| 05/28/2002 | CA2105166C Reduction of sulfur emissions from coal-fired boilers |
| 05/22/2002 | CN1085074C Metal fluoride particles and dental composition including said metal fluoride particles |
| 05/21/2002 | US6391266 Furnace adapted to produce lime for use in downstream flue gas desulfurization process |
| 05/15/2002 | EP1204599A1 Method of producing surgical grade calcium sulphate |
| 05/14/2002 | US6387560 Nanostructured solid electrolytes and devices |
| 05/14/2002 | US6387212 Process for obtaining fibers integral with calcium carbonate particles |
| 05/09/2002 | US20020055033 Nanostructured deposition and devices |
| 05/08/2002 | EP1202932A1 Method for producing barium sulfate, barium sulfate and the utilization thereof |
| 05/08/2002 | CN2490146Y Self-absorption light calcium carbonat machine |
| 05/08/2002 | CN1348429A Method and apparatus for continuous gas liquid reactions |
| 05/08/2002 | CN1348428A Process for the preparation of discrete particles of calcium carbonate |
| 05/08/2002 | CN1084413C Process for causticizing green solution of alkali recovred from black liquid of paper-making |
| 05/08/2002 | CN1084374C Preparation of x-ray storage luminescent material |
| 05/02/2002 | WO2001027935A3 Process for the treatment of radioactive graphite |
| 05/02/2002 | US20020051883 Processing and manufacturing methods enabled using non-stoichiometric nanomaterials |
| 05/02/2002 | EP1200351A1 Electrolytic purification of calcium carbonate |
| 05/02/2002 | EP1200344A1 Method of recovering fumed silica from spent potliner |
| 05/02/2002 | EP1019108B1 Macroporous composite for carrying one or more medicinal substances and for use as a bone reconstruction material, and method for making same |
| 05/01/2002 | CN1346802A Process for preparing barium chloride by chlorating and calcining carbonate-type barium ore |
| 05/01/2002 | CN1083866C Method for preparing particles comprising core and silica shell |
| 04/30/2002 | US6379459 Crystallization of powders having uniform particle sizes by Ostwald ripening at large levels of supersaturation |
| 04/25/2002 | US20020046819 Kraft waste reclamation methodology |
| 04/23/2002 | US6375794 Porous aggregates of calcium carbonate precipitated onto the surface of noil which fibrils are produced by refining from cellulose fibre and/or mechanical pulp fiber; adhesion; spacings; optics; tensile strength; papermaking |
| 04/17/2002 | CN1345191A Acidic solution of sparingly-soluble group IIA complexes |
| 04/17/2002 | CN1344680A Celestite or barite reducing process in solution to produce strontium carbonate or barium carbonate and sulfur element |
| 04/17/2002 | CN1344679A Direct carbon dioxide precipitation process of strontium carbonate or barium carbonate from neutral strontium or barium salt solution |
| 04/11/2002 | WO2001085832A3 Particulate carbonates and their preparation and use in breathable film |
| 04/11/2002 | WO2001058809A3 Barium sulphate, method for producing same and the use thereof |
| 04/10/2002 | CN1082491C Process for preparing nano-class strontium titanate |
| 04/03/2002 | EP0851839B1 Method of manufacturing high purity calcium carbonate |
| 04/03/2002 | CN1342612A Process for preparing both barium sulfate and calcium chloride from waste ardealite dregs |
| 04/03/2002 | CN1342611A Process for preparing granular calcium chloride and its sphericizing granulator |
| 04/02/2002 | US6365122 Process for manufacturing potassium sulfate fertilizer and other metal sulfates |
| 04/02/2002 | US6365038 Low viscosity liquid fuel and fuel gas; asphaltene pyrolysis |
| 03/28/2002 | WO2002024594A2 Method for producing calcium carbonate |
| 03/28/2002 | US20020037248 Providing acidic or acidity- generating components in the product chlorine dioxide solution to provide a chlorine dioxide solution having a pH below about 5.5. |
| 03/28/2002 | CA2423126A1 Method for producing calcium carbonate |
| 03/27/2002 | EP1190227A1 Oxidative reactor for oxidation of salts |
| 03/27/2002 | EP1189840A1 Method and apparatus for continuous gas liquid reactions |
| 03/27/2002 | EP0840710B1 Continuous precipitated calcium carbonate production equipment |
| 03/27/2002 | CN2483374Y Carbonization reactor for producing nanometer grade calcium carbonate particles |
| 03/27/2002 | CN1341560A Method for preparing subnanolevel ultrafine calcium carbonate by using caustic sludge |
| 03/20/2002 | CN1340457A Process for preparing phosphoric acid |
| 03/20/2002 | CN1340456A Process and equipment for decomposing gypsum |
| 03/14/2002 | WO2002020696A1 Synthesis of nanoparticles |
| 03/14/2002 | WO2002020695A1 Doped nanoparticles |
| 03/14/2002 | WO2002020406A1 Impurity removal |
| 03/14/2002 | WO2002020400A1 A method of preparing wet process phosphoric acid |
| 03/14/2002 | CA2421624A1 Impurity removal |
| 03/13/2002 | CN1339403A Catalytic synthesis process of producing gypsum by using calcium sulfite and calcium bisulfite |
| 03/12/2002 | US6355221 Process for removing soluble fluoride from a waste solution containing the same |
| 03/07/2002 | WO2002018270A1 A method of decomposing gypsum to sulfur dioxide and the apparatus thereof |
| 03/07/2002 | US20020028775 Using mixture of flavonoids, cytochrome inhibitor, sugar, phosphate in carrier |
| 02/28/2002 | US20020025901 Method of producing barium-containing composite metal oxide |
| 02/27/2002 | CN1337921A Method for recycling fine calcium fluoride powder |
| 02/21/2002 | WO2002014416A1 Elastomeric compositions containing surface treated barium sulfate |
| 02/21/2002 | WO2001066467A8 Precipitated aragonite and a process for producing it |
| 02/21/2002 | US20020022084 Surface treatment of alkali metal carbonate; reduce concentration of interference particles |
| 02/20/2002 | EP1180090A1 A composition of matter comprising high brightness calcium carbonate pigments and processes for making same |
| 02/13/2002 | EP1179506A2 Procedure for industrial use of mussel shells |
| 02/13/2002 | EP0871525B1 Liquid medium extraction purification method |
| 02/07/2002 | US20020014182 For use in electrical devices, magnetic devices, optical devices, biomedical devices, and electrochemical devices |
| 02/06/2002 | EP1177344A1 Feeding device and process and feeding system which utilise the feeding device |
| 02/06/2002 | EP1177093A1 Surface treated barium sulfate and method of preparing the same |
| 02/06/2002 | CN1334782A Lime treatment |
| 02/05/2002 | US6344271 Materials and products using nanostructured non-stoichiometric substances |
| 01/30/2002 | EP1176119A1 Method of producing barium-containing composite metal oxide |
| 01/30/2002 | EP1009779B1 Bimolecular coated calcium carbonate and process of production thereof |
| 01/30/2002 | CN2474524Y Synthesis reactor of manometer calcium carbonate |