| Patents for C01F 11 - Compounds of calcium, strontium, or barium (8,019) |
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| 02/12/1997 | EP0757971A1 Process for obtaining a charge of dihydrate calcium sulfate in the form of acicular crystals and utilization in the paper making industry |
| 02/11/1997 | US5603074 Preparation and use of tetra-alkyl cobalt dicarbollide for extraction of cesium and strontium into hydrocarbon solvents |
| 02/06/1997 | WO1997003749A2 Process for the transformation of halogenated refrigerant gases |
| 02/05/1997 | CN1141881A Preparation of X-ray storage luminescent material |
| 02/04/1997 | US5599588 Hydrolyzing a homogeneous solution of an alkaline earth or rare earth haloalkoxide in an anhydrous solvent; low temperature |
| 02/04/1997 | US5599388 Acid resistant calcium carbonate composition containing an aluminum salt, uses therefor and processes for its production |
| 01/30/1997 | WO1997003245A1 Method of separating impurities from lime and lime sludge and a method of causticizing green liquor containing impurities, such as silicon, in two stages |
| 01/30/1997 | CA2226127A1 Method of separating impurities from lime and lime sludge and a method of causticizing green liquor containing impurities, such as silicon, in two stages |
| 01/22/1997 | EP0754163A1 Iron oxide/magnesium oxide composites and method for destruction of chlorinated hydrocarbons using such composites |
| 01/22/1997 | EP0674601B1 Process for improving the brightness of raw gypsum |
| 01/21/1997 | US5595713 Purification of flue gas to prevent air pollution by forming acids |
| 01/16/1997 | WO1997001670A1 Filler for use in paper manufacture and procedure for producing a filler |
| 01/15/1997 | EP0665814B1 Precursors and processes for making metal oxides |
| 01/14/1997 | US5593489 Acid resistant carbonate composition containing an aluminum or magnesium hydroxide methods of preparation and uses therefor |
| 01/14/1997 | US5593488 For improving optical properties of neutral to weakly acidic paper |
| 01/09/1997 | WO1997000829A1 Method for production of sodium bicarbonate, sodium carbonate and ammonium sulfate from sodium sulfate |
| 01/09/1997 | WO1997000714A1 Liquid medium extraction purification method |
| 01/07/1997 | US5590983 Method of improving soil irrigation with an improved solution grade calcium sulfate dihydrate |
| 01/02/1997 | DE19525119A1 Process to improve flue gas desulphurisation plant water management |
| 01/01/1997 | CN1139073A High-efficiency calcium-replenishing agent produced with high purity calcium carbonate and its prodn process |
| 12/31/1996 | US5590385 Compressing oxide powders; sintering; pulverization |
| 12/27/1996 | EP0750030A2 Gas refining system |
| 12/27/1996 | EP0598801B1 Generation of fluorine via thermal plasma decomposition of metal fluoride |
| 12/25/1996 | CN1138558A Method for preparing F for anti-corrosion in mfg. process of supermicro barite powder |
| 12/24/1996 | CA2038009C Rhombohedral calcium carbonate and accelerated heat-aging process for the production therof |
| 12/18/1996 | EP0748766A1 Alkaline-earth metal carbonate based granulate with ab- or adsorptive compounds |
| 12/17/1996 | US5585080 Oxidizing iron(ii) chloride; liquid-liquid extraction; stripping; evaporation; precipitation |
| 12/17/1996 | US5585005 Bubbling gas stream having sulfur-containing impurities into aqueous catalytic solution for oxidation to solid sulfur particles, then frothing and adsorption of more impurities before skimming |
| 12/17/1996 | US5584923 Adding cationic salt and anionic salt |
| 12/12/1996 | WO1996039702A2 Methods and agents for the extraction of cesium and strontium from nuclear waste |
| 12/11/1996 | EP0746406A1 Method for surface-modifying a polymeric membrane, and resulting membrane |
| 12/05/1996 | WO1996038380A1 Metal and fluorine values recovery from fluoride salt matrices |
| 12/05/1996 | WO1996029369A3 Ink jet recording paper incorporating novel precipitated calcium carbonate pigment |
| 12/05/1996 | DE19622292A1 High purity calcium carbonate recovery |
| 12/04/1996 | CN1033425C Wet-type waste gas desulphurizing system having air-supplying device |
| 12/03/1996 | US5580377 From barium hydroxide and sulfuric acid; neither sulfide nor soluble barium salt is detected |
| 12/03/1996 | CA2083091C Treatment of used sulfuric acid |
| 11/27/1996 | EP0743875A1 Environmentally friendly flue gas purification process and system |
| 11/26/1996 | US5578218 Brine treatment method |
| 11/19/1996 | US5575984 Method for preparing calcium carbonate for scrubbing sulfur oxides from combustion effluents |
| 11/12/1996 | US5573673 Hydrous composite cerium-phosphorus oxide for immobilization of strontium ions in solution |
| 11/12/1996 | US5573188 Process for grinding calcium carbonate in aqueous media |
| 11/05/1996 | US5571490 Combustion in presence of oil shale containing calcium carbonate |
| 10/30/1996 | EP0739310A1 Method and device for producing high-purity gypsum |
| 10/24/1996 | WO1996033132A1 Extraction of cesium and strontium ions from nuclear waste |
| 10/23/1996 | EP0738776A1 Colloidal alkali or alkaline-earth metal carbonates containing a calcium phosphorous and sulphur compound in micellar form |
| 10/23/1996 | EP0680373B1 Method and apparatus for cleaning gases containing sulphur dioxide |
| 10/17/1996 | WO1996032354A1 Treatment of solid-containing material derived from effluent |
| 10/17/1996 | DE19513511A1 Prepn of a metal oxide mixts contg magnesium carbonate and calcium carbonate |
| 10/16/1996 | EP0737774A1 Process of treating reject from a plant for deinking waste paper |
| 10/15/1996 | US5565502 For bone repair or replacement |
| 10/14/1996 | CA2174018A1 Waste paper treatment process |
| 10/08/1996 | US5562895 Methods and compositions for mineralizing and flouridating calcified tissues |
| 10/02/1996 | EP0548086B1 Method and dispersants for production of high solids aqueous calcium carbonate suspensions |
| 10/02/1996 | CN1032912C Process for preparing light calcium carbonate in form of flake crystal |
| 10/02/1996 | CN1032911C Method of preparing low-iron barium hydroxide |
| 09/26/1996 | WO1996029369A2 Ink jet recording paper incorporating novel precipitated calcium carbonate pigment |
| 09/25/1996 | EP0733602A1 Process for making milk of lime |
| 09/25/1996 | CN1131579A Wet flue-gas desufurization system |
| 09/24/1996 | US5558850 Precipitated calcium carbonate |
| 09/19/1996 | DE3844938C2 Calcium sulphate alpha-mono:hydrate mfr. by autoclaving di:hydrate |
| 09/18/1996 | EP0732304A1 Process for the preparation of magnesium compounds |
| 09/11/1996 | CN1130651A Organic polymer-calcium carbonate composite particles, hollow calcium carbonate particles, processes for their preparation, their use |
| 09/06/1996 | WO1996026902A1 Calcium carbonate precipitation method |
| 09/06/1996 | WO1996026901A1 Production of precipitated calcium carbonate |
| 09/06/1996 | CA2214132A1 Calcium carbonate precipitation method |
| 09/06/1996 | CA2213750A1 Production of precipitated calcium carbonate |
| 09/04/1996 | EP0729777A1 Method for removing perfluorocarbon from a gas stream |
| 09/03/1996 | US5552061 Immersion of rotary impeller blades in liquid for circulation |
| 08/28/1996 | EP0728728A1 A method for the production of calcium salts of weak acids |
| 08/13/1996 | US5545394 Reacting compounds in liquid or gel to form insoluble crystallite products; using complexing agent to facilitate dissolution of reactants in solvent |
| 08/13/1996 | US5545247 Particulate CaF2 and BaF2 agent for improving the machinability of sintered iron-based powder |
| 08/08/1996 | WO1996023729A1 Process for obtaining a charge of dihydrate calcium sulfate in the form of acicular crystals and utilization in the paper making industry |
| 08/08/1996 | WO1996023728A1 Process and apparatus for preparing calcium carbonate |
| 08/07/1996 | CN1128503A Wet type exhaust gas desulfurization apparatus and method utilizing solid desulfurizing agent |
| 07/31/1996 | CN1127673A Wet process flue gas desulfurization apparatus |
| 07/24/1996 | CN1127155A Wet flue gas desulfurization process and system |
| 07/18/1996 | WO1996021620A1 Method for coproducing calcium carbonate and sodium hydroxide |
| 07/17/1996 | EP0616602A4 Process for producing a carbonate composition. |
| 07/10/1996 | CN1126105A Method for desulfurizing exhaust gas |
| 07/09/1996 | US5534191 Improved radiography method |
| 07/09/1996 | US5533679 Grinding alkaline earth metal pigments |
| 07/09/1996 | US5533678 Circulation of effluent, low solids concentration |
| 07/03/1996 | EP0558522B1 Method for preparing calcium and/or magnesium hydroxide, and use thereof |
| 07/03/1996 | CN1125690A Process for preparation of biological active calcium by low-temp two-step hydrolysis method |
| 07/03/1996 | CN1032200C Preparation of partile strontium arbonate containing strontium binder |
| 07/02/1996 | US5531975 Process for the production of phosphoric acid and calcium fluoride |
| 07/02/1996 | US5531821 Surface modified calcium carbonate composition and uses therefor |
| 06/26/1996 | CN1032129C Liquid carbon dioxide injection in exothermic chemical reactions |
| 06/18/1996 | US5527475 Method for determining the parameters of a gas-liquid contact apparatus |
| 06/13/1996 | WO1996017801A1 Improved method and apparatus for preparing calcium carbonate for scrubbing sulfur oxides from combustion effluents |
| 06/05/1996 | EP0714240A1 Reduced absorption of fatty acids |
| 06/05/1996 | DE4442815A1 Redn. of hydrogen sulphide evolution from barium or strontium carbonate or sulphate contg. sulphide |
| 06/05/1996 | DE4437138C1 Verfahren zur Aufarbeitung und Verwertung von Bortrifluorid-Katalysatorrückständen Method for processing and utilization of boron trifluoride catalyst residues |
| 06/05/1996 | CN1031935C Production of granular aqueous barium hydroxide |
| 06/05/1996 | CN1031925C Making method for granules of strontium carbonate and barium carbonate |
| 05/30/1996 | WO1996015985A1 Method for purification of calcium carbonate |
| 05/30/1996 | WO1996015847A1 Method for surface-modifying a polymeric membrane, and resulting membrane |
| 05/30/1996 | DE4442077A1 Purificn. of halide such as alkali(ne earth) or rare earth halide |
| 05/30/1996 | CA2205599A1 Method for purification of calcium carbonate |