| Patents for C01F 11 - Compounds of calcium, strontium, or barium (8,019) |
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| 10/13/1983 | WO1983003407A1 Alkali regeneration process |
| 10/05/1983 | EP0090568A1 Improved alkali regeneration process |
| 09/06/1983 | US4402922 Process for rapid conversion of fluoroanhydrite to gypsum |
| 08/31/1983 | EP0087323A1 A process to manufacture commercially acceptable phosphoric acid and gypsum from rock phosphate |
| 08/16/1983 | US4399110 Process for reducing the radioactivity of calcium sulfate prepared from phosphate rock |
| 08/09/1983 | US4397257 Sea anchor in particular for large ships |
| 08/02/1983 | CA1150930A1 Process for the preparation of finely divided precipitated calcium carbonate |
| 08/02/1983 | CA1150908A1 Mineral filler |
| 07/19/1983 | US4394363 Reacted with alkaline earth compounds with out sludge formation |
| 07/07/1983 | WO1983002266A1 Conversion of fluoroanhydrite to plaster |
| 06/28/1983 | US4390509 Process for manufacturing ammonium phosphate utilizing an oxalic acid acidulating process |
| 06/23/1983 | WO1983002111A1 Process for reducing radioactive contamination in phosphogypsum |
| 06/23/1983 | WO1983002110A1 Process for rapid conversion of fluoroanhydrite to gypsum |
| 06/23/1983 | WO1983002109A1 Lime slaker |
| 06/23/1983 | WO1983002107A1 Phosphoanhydrite process |
| 06/21/1983 | CA1148331A1 Method of removing sulfur dioxide |
| 06/21/1983 | CA1148328A1 Increased production of wet process phosphoric acid by gelatin addition |
| 06/14/1983 | US4388292 Process for reducing radioactive contamination in phosphogypsum |
| 06/08/1983 | EP0080478A1 N-hydroxyethylated macrocyclic polyamines, the preparation of such amines and their use. |
| 06/07/1983 | US4387083 Crystallization of calcium sulfate dihydrate, sulfuric acid, particle sizes |
| 06/07/1983 | US4387077 Process for the recovery of substantially radium free calcium sulphate, yttrium and lanthanides, as well as calcium sulphate, yttrium and lanthanides obtained by this process |
| 05/18/1983 | EP0078904A2 Method and apparatus for recovering calcium chloride from spent absorbent liquid in exhaust gas desulfurization process |
| 05/17/1983 | US4383936 Autogenously dispersible alkaline earth metal carbonate composition |
| 05/10/1983 | USRE31236 Method of removing sulfur dioxide from combustion exhaust gas |
| 04/27/1983 | EP0077475A2 Process and apparatus for the pressureless production of alpha-calcium sulphate-hemihydrate |
| 04/27/1983 | EP0077331A1 Process and device for manufacturing synthetic anhydrous calcium sulphate and pure hydrofluoric acid. |
| 04/13/1983 | EP0076551A1 Process for the preparation of calcium sulphate anhydrite |
| 04/06/1983 | EP0075783A1 Process for producing powdery barium oxide |
| 04/05/1983 | US4379130 Process for regenerating scrubbing solutions |
| 03/23/1983 | EP0074772A2 Preparation of a calcium sulfate anhydrite material of low chloride content |
| 03/23/1983 | EP0074503A1 Process for the post-treatment of extraction residues of phosphoric-acid purification |
| 03/16/1983 | EP0074258A1 Improved process for flue gas desulfurization |
| 03/15/1983 | EP0050640A4 Process and equipment for the performance of recipitate forming reactions by using an ion-exchange auxiliary phase. |
| 02/22/1983 | US4374810 Recovery of fluorine from pond water of wet process phosphoric acid plants and recycling of defluorinated water |
| 02/22/1983 | CA1141783A1 Mica-free joint compound |
| 02/15/1983 | CA1141157A1 Calcination method and apparatus |
| 02/09/1983 | EP0071321A1 Tape drive assembly for a garage door opener |
| 02/08/1983 | US4372927 Adsorption on carbon, reaction with calcium compound; air pollution control |
| 02/08/1983 | CA1140816A1 Process for the production of treated lime, treated lime produced thereby, and a process for the desulphurisation of iron using such treated lime |
| 01/19/1983 | EP0070019A1 Photographic elements employing nondiffusible azoaminophenol magenta dye-releasing compounds or precursors thereof |
| 01/19/1983 | EP0069961A1 Slaked lime, process for its production, and its use |
| 01/11/1983 | CA1139079A1 Pocess for the purification of phosphogypsum |
| 01/05/1983 | EP0068411A2 Method of selectively removing adsorbed calcium and magnesium from cation exchange resins |
| 01/04/1983 | US4367210 Pipeline reaction apparatus and method |
| 01/04/1983 | US4367207 Process for the preparation of finely divided precipitated calcium carbonate |
| 01/04/1983 | US4367205 Process for removing sulfur dioxide from combustion exhaust gas |
| 12/28/1982 | CA1138253A1 Lime sludge press unit |
| 12/21/1982 | CA1137759A1 Desulfurizing agent for injection |
| 12/14/1982 | US4363880 Method of selectively removing adsorbed calcium and magnesium from cation exchange resins |
| 12/09/1982 | WO1982004252A1 N-hydroxyethylated macrocyclic polyamines, the preparation of such amines and their use |
| 12/07/1982 | US4362705 Process for the preparation of phosphoric acid and calcium sulphate anhydrite as well as phosphoric acid and calcium sulphate anhydrite obtained by this process |
| 12/01/1982 | EP0065863A2 Method of producing ceramic-forming metal hydroxide and oxide powders |
| 11/30/1982 | CA1136576A1 Electrolytic method and apparatus for producing magnesium from a salt solution containing magnesium sulphate |
| 11/25/1982 | WO1982004036A1 Recovery of fluoride values from carbonaceous materials |
| 11/23/1982 | US4360386 Treating calcined gypsum with solubilizing agent |
| 11/16/1982 | CA1135730A1 Gypsum-based granules and method of production |
| 11/16/1982 | CA1135482A1 Process for the granulation of precipitation products formed from ammonium compounds by substitution with alkaline-earth compounds |
| 11/11/1982 | WO1982003848A1 Process and device for manufacturing synthetic anhydrous calcium sulphate and pure hydrofluoric acid |
| 11/10/1982 | EP0022785B1 A method of recovering calcium and sulphur compounds from a metallurgical waste material |
| 11/02/1982 | US4357412 Photographic products and processes employing novel nondiffusible bridged azoaminophenol magenta dye-releasing compounds and precursors thereof |
| 11/02/1982 | CA1134563A1 Method for increasing the brightness of limestone |
| 10/19/1982 | US4355017 Aluminum electrolytic cell cathode waste recovery |
| 10/14/1982 | WO1982003379A1 Treating calcined gypsum with solubilizing agent |
| 09/28/1982 | US4351483 Separation of arsenic from fluorite ore, by means of magnetic separation and flotation of the pyrites to which it is associated |
| 09/07/1982 | US4348372 Acidification with chlorine or hydrogen chloride |
| 09/07/1982 | US4348371 Process for the recovery of calcium salts from calcium hypochlorite process effluents |
| 09/07/1982 | US4348299 Method for preparing inorganic sulfides |
| 08/17/1982 | US4344925 Ozone whitening of synthetic gypsum |
| 08/17/1982 | CA1129668A1 Granulation process |
| 08/11/1982 | EP0057519A1 A method for increasing the filtration rate of the calcium sulphate crystals in the production of wet process phosphoric acid |
| 08/10/1982 | CA1129174A1 Process for recovery of chemicals from saline water |
| 07/21/1982 | EP0056200A1 Process for preparing and using a crystalline product |
| 07/14/1982 | EP0056001A2 Chemical process on the surface of a rotating body with subsequent discharge of the reaction product |
| 07/13/1982 | CA1127374A2 Fibrous calcium sulfate |
| 06/30/1982 | EP0055088A1 Process for the preparation of finely divided precipitated calcium carbonate |
| 06/30/1982 | EP0054993A1 Process for the recovery of practically radium-free calcium sulphate, yttrium and lanthanides |
| 06/29/1982 | US4337238 Method of growth of primary anhydrite crystals under moderate conditions |
| 06/29/1982 | US4337233 Preparation of strontium nitrate from celestite and calcium nitrate |
| 06/22/1982 | US4336232 Production of purified brine |
| 06/22/1982 | CA1125994A1 Chemical process on the surface of a rotating body |
| 06/15/1982 | CA1125456A1 Pigment treatment method |
| 06/08/1982 | US4333737 Reclamation of materials from photoflash cartridges |
| 05/05/1982 | EP0050640A1 Process and equipment for the performance of recipitate forming reactions by using an ion-exchange auxiliary phase |
| 05/04/1982 | US4328196 Production of alkali metal products from alkali metal fluosilicate |
| 05/04/1982 | US4328195 Process for desulfurizing combustion exhaust gases |
| 05/04/1982 | US4328193 Process for removing radium from monocalcium phosphate solutions by centrifugation |
| 05/04/1982 | US4328189 Apparatus for the granulation of precipitation products formed from ammonium compounds |
| 04/20/1982 | CA1121973A1 Process for the production of inorganic fibres based on calcium sulphate |
| 04/13/1982 | US4324659 Lime sludge press unit |
| 03/30/1982 | US4322393 Process for drying calcium chloride generated in high chloride flue gas desulfurization systems |
| 03/23/1982 | US4321244 Process for the treatment of a calcium aluminophosphate |
| 03/23/1982 | US4321239 Method of thermal treatment of a carbonate suspension |
| 03/16/1982 | CA1119779A1 Flue gas scrubbing system |
| 03/02/1982 | CA1119142A1 Method for brightening natural calcitic ores |
| 02/16/1982 | CA1118294A1 Treatment of lime to improve flowability |
| 02/09/1982 | US4314978 Increased production of wet process phosphoric acid by gelatin addition |
| 02/02/1982 | US4313924 Process for removal of sulfur dioxide from gas streams |
| 02/02/1982 | CA1117271A1 Spherical gypsum and process for production of same |
| 01/27/1982 | EP0044516A1 Phosphor and radiation image storage panel utilizing the same |
| 01/27/1982 | EP0044375A1 Reburning of dried lime sludge combined with steam generation |