| Patents for C01F 11 - Compounds of calcium, strontium, or barium (8,019) |
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| 05/20/1980 | US4203954 Process for desulfurization of exhaust gases recovering gypsum as _by-product |
| 05/14/1980 | EP0010643A1 Process for producing an aquous suspension of calcium and/or magnesium carbonates from dolomite |
| 05/06/1980 | US4201541 Process and installation for the production of calcined material |
| 05/01/1980 | WO1980000831A1 A method of recovering calcium and sulphur compounds from a metallurgical waste material |
| 04/29/1980 | US4200522 Using a fatty acid and a monoester of maleic or phthalic acid |
| 04/08/1980 | US4197285 Regeneration of lime from sulfates for fluidized-bed combustion |
| 04/08/1980 | CA1074977A1 Method for the production of alpha type hemihydrated gypsum |
| 04/02/1980 | EP0009176A1 Process for preparing aqueous calcium sulfate hemihydrate suspensions and their use |
| 04/01/1980 | US4196184 Lime recovery process |
| 04/01/1980 | US4196172 Hemihydrate type phosphoric acid process |
| 04/01/1980 | CA1074528A1 Manufacture of magnesium carbonate and calcium sulphate |
| 03/19/1980 | EP0008890A1 Process for producing calcium fluoborate |
| 03/18/1980 | US4193971 Process for removal of sulfur oxides from waste gases |
| 03/18/1980 | US4193812 Dehydration, reacting impurities with calcium source |
| 03/11/1980 | US4192793 Stabilizers for chlorine-containing resins |
| 03/11/1980 | CA1073185A1 Method for the large-scale industrial obtaining of magnesium oxide of high purity |
| 03/04/1980 | CA1072724A1 Method for oxidation of so2 scrubber sludge |
| 02/19/1980 | CA1071839A1 Process for the treatment of acidic waste liquid containing dissolved ferrous salts |
| 02/12/1980 | CA1071614A1 Regeneration of sulfided dolomite |
| 02/06/1980 | EP0007610A1 Process for making use of gypsum generated in flue-gas desulfurization units |
| 02/05/1980 | CA1070926A1 Manufacture of calcium sulphate alphahemihydrate |
| 01/22/1980 | CA1070441A1 Mineral beneficiation by froth flotation: use of alcohol ethoxylate partial esters of polycarboxylic acids |
| 01/22/1980 | CA1070086A1 Lime recovery process |
| 01/15/1980 | US4183908 Crystalline calcium sulfate dihydrate and process for making same |
| 01/15/1980 | US4183763 Gypsum-based granules and method of production |
| 01/08/1980 | CA1069463A1 Method for removing hydrogen sulfide |
| 12/25/1979 | US4180857 Apparatus for processing chromatograph data |
| 12/25/1979 | US4180547 Process for recovery of chemicals from saline water |
| 12/25/1979 | US4180546 Process for removing phosphorus from phosphorus-containing fluorite |
| 12/11/1979 | US4178348 Process for removing sulfur oxides in exhaust gases |
| 12/11/1979 | CA1067675A1 Process for the manufacture of a slurry containing highly concentrated phosphoric acid and calcium sulfate hemihydrate in a readily filterable form |
| 11/20/1979 | US4175146 Coating with fluorides to harden and making surfaces chemically resistant with silicon compounds and nonionic surfactants |
| 11/20/1979 | US4175066 Dispersant for calcium carbonate |
| 11/15/1979 | WO1979000931A1 Preparation of white liquor |
| 11/14/1979 | EP0005301A1 Process for the removal of sulphur oxides from high-chloride flue gases |
| 11/06/1979 | US4173610 Process for the manufacture of lump calcium sulfate |
| 10/17/1979 | EP0004568A1 Process for recovering sulphuric acid from natural gypsum or phospho-gypsum |
| 10/16/1979 | US4171342 Recovery of calcium fluoride from phosphate operation waste water |
| 09/11/1979 | CA1062006A1 System for handling high sulfur materials |
| 09/11/1979 | CA1061987A1 Decomposition of calcium sulfate by zoned reduction and oxidation in a fluidized bed |
| 09/11/1979 | CA1061957A1 Brightening of natural calcitic ores |
| 09/05/1979 | EP0003907A1 Chemical process on the surface of a rotating body, the subsequent discharging of the reaction product and the reactor used |
| 09/05/1979 | EP0003906A1 Chemical process on the surface of a rotating body with subsequent discharge of the reaction product |
| 09/04/1979 | US4166838 Process for treating exhaust gases |
| 09/04/1979 | US4166582 Comminution of materials |
| 09/04/1979 | CA1061918A1 Method for the disposal of waste water containing ammonium ions, sulfate ions and organic substances |
| 08/28/1979 | US4165840 Method for brightening natural calcitic ores |
| 08/14/1979 | US4164554 Method for converting calcium sulfoxy compounds into calcium carbonate compounds |
| 08/07/1979 | US4163674 Gypsum granules |
| 08/07/1979 | CA1059927A1 Gas purification method and apparatus |
| 07/24/1979 | US4162170 Method of obtaining granulated and defluorated phosphogypsum |
| 06/26/1979 | US4159312 Adsorbed water soluble salt of isobutylene-maleic anhydride copolymer |
| 06/12/1979 | US4158075 Stabilizers for chlorine-containing resins and process for producing the same |
| 06/05/1979 | US4157379 Process for producing chain structured corpuscular calcium carbonate |
| 06/05/1979 | US4157377 Removing water by pruging with a dry, inert gas |
| 06/05/1979 | CA1055678A1 Method of preparing plaster |
| 05/08/1979 | CA1053876A1 Method and means of growing coarse gypsum and magnetite |
| 05/02/1979 | EP0001591A1 Process for the production of aqueous suspensions of calcium sulphate-hemihydrate and their use |
| 05/01/1979 | US4152408 Fibrous calcium sulfate |
| 05/01/1979 | US4152397 Method for the conversion of phosphate rock containing magnesium into phosphoric acid and a mixture of magnesium and calcium carbonates |
| 05/01/1979 | US4152078 Granulating apparatus |
| 04/24/1979 | US4151000 From phosphogypsum by-product of wet phosphoric acid process |
| 04/10/1979 | US4148867 Production of synthetic fluorspar |
| 04/10/1979 | CA1052292A1 Removal of hydrogen fluoride from gaseous mixture by absorption on alkaline earth metal fluoride |
| 03/20/1979 | CA1050731A1 Hydrometallurgical production of technical grade molybdic oxide from molybdenite concentrates |
| 03/13/1979 | US4144312 Desulfurization of fluorite ores |
| 03/13/1979 | CA1050235A1 Production of pharmaceutical barium sulphate |
| 03/06/1979 | CA1049752A1 Process for removing sulfur oxides from gas streams |
| 02/27/1979 | CA1049284A1 Gypsum dust dilluents for use in pesticides and fertilising products |
| 02/20/1979 | US4140540 Process for the preparation of ettringite fibers |
| 02/20/1979 | US4140536 Gypsum products |
| 02/13/1979 | CA1048231A1 Process for the removal of oxides of sulfur from a gaseous stream |
| 02/06/1979 | US4138332 Controlling the feeding rate |
| 01/30/1979 | US4137293 By magnetic separation, after oxidation and neutralization |
| 01/30/1979 | US4136998 Process for the disposal of the residue of the exhaust gas washers of furnaces in particular bituminous coal power stations |
| 01/24/1979 | EP0000415A1 Process for the preparation of aqueous suspensions containing at least 65% by weight of calcium carbonate |
| 01/16/1979 | US4134946 Or with potassium carbonate, sodium hydroxide or calcium hydroxide; pressing and calcining |
| 01/09/1979 | US4133894 Process for preparing precipitated calcium carbonate |
| 01/02/1979 | US4132759 By precipitation of double salt of sodium sulfate and calcium sulfate |
| 01/02/1979 | CA1045340A1 Process for the manufacture of stabilised, hardenable calcium sulphate by reacting crude phosphate with sulphuric acid |
| 01/02/1979 | CA1045309A1 Calcium carboaluminates and tobermorites |
| 12/26/1978 | US4131545 Water treatment |
| 12/26/1978 | CA1045258A1 Recovery of fluorine and phosphate values from waste water |
| 12/12/1978 | CA1044014A1 Calcining calcium sulphate dihydrate |
| 12/12/1978 | CA1043984A1 Process for wet scrubbing of sulfur dioxide from flue gas |
| 12/05/1978 | US4128626 Purification of gaseous hydrogen chloride |
| 11/21/1978 | CA1042626A1 Production of fluoride-free phosphates |
| 11/07/1978 | US4124688 Calcium hydroxide, carbon dioxide |
| 11/07/1978 | CA1041736A2 Phase separation between magnesium and calcium components |
| 10/31/1978 | CA1041304A1 Process for recovering valuable metals from sulfate solutions |
| 10/24/1978 | USRE29813 Process for the removal of sulfur oxide from waste gas |
| 10/24/1978 | CA1040866A1 Refining of chloride salts |
| 10/17/1978 | US4120940 Direct production of coarse particle inorganic fluorides |
| 10/17/1978 | US4120737 Manufacture of calcium sulphate alpha hemihydrate |
| 10/17/1978 | US4120645 System for handling high sulfur materials |
| 10/10/1978 | US4119700 Grinding barite ore, magnetic separation, leaching |
| 09/26/1978 | US4117078 Debromination, reaction with calcium chloride |
| 09/19/1978 | US4115187 Agglomerated fillers used in paper |
| 09/19/1978 | CA1038595A1 Water dispersible calcium carbonate for detergent compositions |
| 09/12/1978 | US4113842 Fertilizer |