| Patents for C01F 11 - Compounds of calcium, strontium, or barium (8,019) |
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| 06/23/1994 | WO1994013586A1 Process for improving the brightness of raw gypsum |
| 06/23/1994 | WO1994013580A1 Drying and separating process and plant |
| 06/15/1994 | EP0601271A1 Sulfur dioxide scrubbing process producing purified magnesium hydroxide |
| 06/08/1994 | CN1087603A Stable lime slurries |
| 06/07/1994 | US5318227 Separating and classifying according ot particle size, transferring using air as the motive fluid |
| 06/03/1994 | CA2084327A1 Lime neutralization process for treating acidic waters |
| 05/31/1994 | US5317053 Method for production of high solid aqueous calcium carbonate suspensions |
| 05/17/1994 | US5312609 Desulfurization by producing calcium and magnesium sulfite and scrubbing |
| 05/17/1994 | US5312604 Work-up of waste materials from barium or strontium sulfide leaching |
| 05/17/1994 | CA1329486C Process for recovery of rare metals |
| 05/17/1994 | CA1329466C Desulfurization of gypsum |
| 05/11/1994 | WO1994010084A1 Precursors and processes for making metal oxides |
| 05/11/1994 | CA2145878A1 Precursors and processes for making metal oxides |
| 05/03/1994 | US5308509 Scrubber tower for flue gas desulfurization |
| 04/27/1994 | EP0594332A1 Stabilised lime slurries |
| 04/27/1994 | CN1085876A Method for prepn. of nanometer calcium using plasma |
| 04/21/1994 | CA2108322A1 Stable lime slurries |
| 04/13/1994 | CN1085230A Methods of biomass pretreatment |
| 04/13/1994 | CN1085188A Process for producing light calcium carbonate and calcium chloride with industrial flue gas |
| 04/06/1994 | CN1024125C Productive method of high-activity and purity calcium hydroxide |
| 03/31/1994 | WO1994006575A1 Compositions and methods for waste treatment |
| 03/31/1994 | CA2145310A1 Compositions and methods for waste treatment |
| 03/30/1994 | CN1084493A Method of preparing low-iron barium hydroxide |
| 03/29/1994 | US5298169 Reaction of sulfuric acid with calcium material to form gypsum then mixing with a calcium substance, filtration and clarification |
| 03/22/1994 | US5296246 Active amino acid Ca, beverages containing same, and process for their production |
| 03/22/1994 | US5296002 Rhombohedral calcium carbonate and accelerated heat-aging process for the production thereof |
| 03/16/1994 | EP0548086A4 Method and dispersants for production of high solids aqueous calcium carbonate suspensions. |
| 03/16/1994 | EP0506808B1 Dispersion and/or grinding agent for aqueous mineral suspensions with a zeta potential close to zero, aqueous suspensions containing same, and applications |
| 03/16/1994 | CN1083794A Preparation of partile strontium arbonate ontaining strontium binder |
| 03/16/1994 | CN1023996C Method for producing highly active calcium oxide |
| 03/15/1994 | CA1327694C Conversion of calcium compounds into solid and gaseous compounds |
| 03/10/1994 | DE4229901A1 Granulating and drying strontium carbonate - by mixing with water and binder of strontium oxide or opt. hydrated hydroxide before drying avoids addn. of impurity ions; used for making glass e.g. for x-ray absorbing TV screen |
| 03/08/1994 | US5292495 Porous particles of calcium carbonate and method for the preparation thereof |
| 03/08/1994 | US5292365 Calcium carbonate |
| 03/03/1994 | WO1994005054A1 Process for disposing of sodium-sulphur accumulator cells |
| 03/03/1994 | WO1994004460A1 Methods and compositions for mineralizing and fluoridating calcified tissues |
| 03/03/1994 | CA2141575A1 Process for disposing of sodium-sulphur accumulator cells |
| 03/03/1994 | CA2121243A1 Methods and compositions for mineralizing and fluoridating calcified tissues |
| 03/02/1994 | EP0584502A2 Process for the spontaneous precipitation of sulfates dissolved in water as calcium aluminium sulfate and the application of this process for the preparation of low-chloride gypsum-anhydrite containing aluminium oxide |
| 03/02/1994 | CN1023893C Preparation process for octahydrated barium hydroxide |
| 03/01/1994 | US5290531 Reaction of ammonia, carbon dioxide and sodium bromide brines for salt formation |
| 03/01/1994 | US5290353 Vaterite and production method |
| 02/22/1994 | US5288784 Polyester composition containing vaterite-type calcium carbonate |
| 02/22/1994 | CA1327113C Process for the removal of heavy metals from acid, phosphate-containing, aqueous media |
| 02/17/1994 | WO1994003646A1 Methods of biomass pretreatment |
| 02/16/1994 | CN1082003A Process to prepare activated calcium |
| 02/15/1994 | US5286468 Reduction of carbon dioxide to carbon monoxide; cooling, distillation, oxidation |
| 02/09/1994 | EP0581981A1 Process for producing needle-shaped calcium carbonate particles |
| 02/08/1994 | US5284630 Apparatus for production of acetylene |
| 02/08/1994 | CA1326758C Process of desulfurization |
| 02/03/1994 | WO1994002415A1 Methods for preparing basic aluminum compounds with ultrasound |
| 02/03/1994 | WO1994002263A1 Treatment of solid material |
| 02/03/1994 | CA2140351A1 Methods for preparing basic aluminum compounds with ultrasound |
| 01/19/1994 | CN1080909A Process for preparing light calcium carbonate in form of flake crystal |
| 01/19/1994 | CN1023556C Method for producing liquid calcium chloride |
| 01/11/1994 | US5277837 Method and composition for treating flue or exhaust gases utilizing modified calcium hydroxide |
| 01/05/1994 | EP0577272A1 Process for preparing calcium sulphate |
| 01/04/1994 | US5275797 Method of producing barium carbonate |
| 01/04/1994 | US5275651 Matrices |
| 01/04/1994 | US5275650 Microparticles of ethylene polymers or copolymers for grinding |
| 12/29/1993 | EP0575540A1 Reduction of sulfur emissions from coal-fired boilers |
| 12/15/1993 | CA2070935A1 Combined transuranic-strontium extraction process |
| 12/14/1993 | US5270026 Sulfur dioxide scrubbing process producing purified magnesium hydroxide |
| 12/14/1993 | US5269818 Rhombohedral calcium carbonate and accelerated heat-aging process for the production thereof |
| 12/09/1993 | WO1993024410A1 DIRECT FORMATION OF α-CALCIUM SULFATE HEMIHYDRATE UNDER ATMOSPHERIC PRESSURE |
| 12/09/1993 | WO1993024261A1 PARTICULATE CaF2 AND BaF2 AGENT FOR IMPROVING THE MACHINABILITY OF SINTERED IRON-BASED POWER |
| 12/09/1993 | WO1993024260A1 PARTICULATE CaF2 AGENT FOR IMPROVING THE MACHINABILITY OF SINTERED IRON-BASED POWDER |
| 12/08/1993 | CN1079206A Process for producing barium hydroxide octahydrate |
| 12/07/1993 | US5268167 Dental restorative; amorphous calcium phosphate fluoride and carrier |
| 11/30/1993 | US5266287 Regenerable flue gas desulfurization system |
| 11/30/1993 | US5266285 Adding thiosulfate and sodium ions to calcium hydroxide slurry; oxidation to sulfates inhibited |
| 11/24/1993 | CN1078706A Process for producing high-purity strontium carbonate from celestite |
| 11/16/1993 | US5262148 Process for preparing barium sulfate |
| 11/11/1993 | WO1993022386A1 Improved process for preparing silica coated inorganic particles |
| 11/03/1993 | EP0567713A1 Process and apparatus for treating waste water containing hydrosulfides and hydrosulfites |
| 10/28/1993 | DE4242200C1 Verfahren zur Verbesserung des Weißgrades von Rohgips Method for improving the degree of whiteness of gypsum rock |
| 10/20/1993 | EP0565845A1 Process for treating an unorganic polluted hydrochloride acid from off gas scubbing |
| 10/19/1993 | US5254230 Methods for preparing basic aluminum compounds with ultrasound |
| 10/14/1993 | WO1993020010A1 Clustered precipitated calcium carbonate particles |
| 10/14/1993 | CA2133472A1 Clustered precipitated calcium carbonate particles |
| 10/13/1993 | EP0565004A2 Biaxially oriented polyester film |
| 10/07/1993 | CA2092945A1 Biaxially oriented polyester film |
| 09/28/1993 | US5248487 Process for the conversion of calcium sulfate dihydrate into alpha-hemihydrate |
| 09/21/1993 | US5246687 From barium oxysalt and sulfur |
| 09/21/1993 | US5246679 Addition of organophosphonates for size control of wet calcium-based FGD byproduct solids under inhibited oxidation conditions |
| 09/21/1993 | US5246678 High-performance flue-gas desulfurization process |
| 09/21/1993 | US5246677 Crystallization of calcium sulfate |
| 09/16/1993 | DE4208068A1 Calcium, barium or strontium carbonate granulation - with binder addn. and without contact by refractory material |
| 09/16/1993 | DE4207923A1 Calcium, barium or strontium carbonate granulation for use in glass mfr. - by mixing powder with binder, drying and calcining opt. without contact with inorganic refractory material, to avoid contamination |
| 09/16/1993 | DE4206541A1 Micro-porous lime foam granulate for waste gas esp. flue gas purificn. - with low density and large surface area and prodn. by adding unslaked lime to foam compsn. |
| 09/15/1993 | EP0559650A1 High surface area hydrated lime and methods |
| 09/14/1993 | US5244542 Aqueous suspensions of calcium-containing fillers |
| 09/08/1993 | EP0558522A1 Method for preparing calcium and/or magnesium hydroxide, and use thereof. |
| 09/02/1993 | DE4216239C1 Calcium hypochlorite decomposition with hydrogen peroxide - by treatment in aq. suspension, neutralisation and sepn. into solid suitable for disposal and waste liquor without environmental pollution |
| 09/01/1993 | EP0558275A1 Production of purified calcium carbonate |
| 09/01/1993 | CN1075696A Preparation of barium hydroxide by desulphation |
| 08/31/1993 | US5240709 Stabilized solid thiocarbonate compositions and methods for making same |
| 08/19/1993 | WO1993011867A3 Process for briquetting and compacting fine grained materials |
| 08/11/1993 | EP0554691A1 Process for treating flue gas |
| 08/05/1993 | DE4302539A1 Fluid highly conc. stable calcium and/or magnesium hydroxide slurry - for producing micro-flakes and granules, obtd. by slaking oxide with aq. acid and adding polyanion |