| Patents for C01F 11 - Compounds of calcium, strontium, or barium (8,019) |
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| 04/01/1987 | EP0216002A2 Process for beneficiating natural calcite ores |
| 03/31/1987 | CA1219730A1 Calcium carbonate, especially natural calcium carbonate |
| 03/24/1987 | US4652434 Chlorination of ores containing alkali or alkaline earth values |
| 03/19/1987 | DE3531968A1 Simultaneous scrubbing of SO2 and NOx having an intermediate step |
| 03/18/1987 | EP0214891A1 Process for producing spherical particles of compounds of metals from the second group |
| 03/10/1987 | US4649037 Hydrolyzing oranometallic compound with water in an organic solvent |
| 03/10/1987 | CA1218807A1 Causticizing process |
| 03/04/1987 | EP0212543A2 Process for the preparation of products containing ammonium syngenite |
| 02/12/1987 | WO1987000826A1 Chlorination of ores containing alkali or alkaline earth values |
| 02/10/1987 | US4642207 Process for producing ultrafine particles of ceramics |
| 02/05/1987 | DE3527900A1 Process and apparatus for treating scrubbing liquid of a flue gas desulphurization plant |
| 01/22/1987 | DE3525654A1 Process for preparing potassium nitrate |
| 01/15/1987 | DE3525051A1 Process for removing HCl, HF, SO3, SO2 and oxides of nitrogen from combustion exhaust gases by a simultaneous wet scrubbing |
| 01/15/1987 | DE3524047A1 Scrubbing liquid and process for separating SO2 and NOx from flue gases of fossil power stations with simultaneous N2O separation |
| 01/14/1987 | CN85105628A Nonpoisonous treatment of chromium slag and extraction of calcium and magnesium |
| 01/13/1987 | US4636379 Process for producing calcium hydroxide |
| 01/13/1987 | US4636376 Sulfate removal from alkali metal chlorate solutions |
| 01/07/1987 | CN85105315A Method for the prepn. of feeding prade calcium phosphate |
| 01/06/1987 | US4634583 Deacidified hot cement meal |
| 12/31/1986 | CN85107964A Process for removing gaseous sulfur compunds, such as sulfur dioxide, from the flue gases of a furnace |
| 12/30/1986 | US4632810 Method for treating waste gas to separate and recover gypsum and dust therein |
| 12/30/1986 | EP0094967B1 Lime slaker |
| 12/24/1986 | CN85104649A Method for oxidation of flue gas desulfurization absorbent and the product produced thereby |
| 12/16/1986 | US4629419 Calcination method and apparatus |
| 12/16/1986 | US4629130 Abrasively grinding in carbon dioxide slurry |
| 12/09/1986 | US4627970 Dewatering, precipitation of impurities on gypsum layer |
| 12/09/1986 | US4627888 Causticizing method |
| 12/04/1986 | WO1986006981A1 METHOD FOR SIMULTANEOUSLY REMOVING BY WASHING SO2, NOx AND OPTIONALLY OTHER NOXIOUS SUBSTANCES CONTAINED IN FLUE GASES IN HEATING INSTALLATIONS SUPPLIED WITH FOSSILE FUELS |
| 12/03/1986 | CN85104366A Installation for wet-removal of sulphur from flue gas |
| 12/02/1986 | US4626426 Process for the manufacture of caustic soda |
| 12/02/1986 | US4626264 High efficiency; lime absorber |
| 12/02/1986 | CA1214624A1 Method for preparing elemental sulfur as a diffusion- resistant gas for chemical reaction |
| 11/25/1986 | CA1214310A1 Method of producing calcium sulfate dihydrate in connection with the desulfurization of flue gases |
| 11/12/1986 | CN85103821A Method of increasing whiteness of low density calcium carbonate |
| 11/05/1986 | EP0199930A2 Spray-dried inorganic oxides from non-aqueous gels or solutions |
| 10/22/1986 | CN85107965A Process and an apparatus for causing the gaseous sulfur compounds of flue gases to react to form solid compounds |
| 10/21/1986 | US4618482 Method for controlling a concentration of slurry in wet flue gas desulfurization apparatus |
| 10/15/1986 | EP0197327A2 Process for the preparation of fine, very pure calcium carbonate with a high degree of whiteness |
| 10/15/1986 | EP0197326A2 Process for manufacturing calcium hydrogen phosphate |
| 10/15/1986 | CN85107743A Hydrochloric acid recycle process for manufacturing barium sulphate and magnesium oxide at the same time |
| 10/15/1986 | CN85103386A Highly effective and impervious reinforcing agent used for mortar or concret |
| 10/08/1986 | CN86100169A Process for purification of aqueous solutions of rare earth salts by liquid-liquid extraction |
| 09/30/1986 | US4614645 Wet treatment |
| 09/30/1986 | CA1211919A1 Method for preparing phosphoric acid and calcium sulfate |
| 09/17/1986 | CN85101594A No-lead electrostrictive material |
| 09/16/1986 | US4612173 Method of purifying by-product gypsum |
| 09/02/1986 | US4609536 Desulfurization of flue gas |
| 08/27/1986 | CN85100710A Low qm piezoelectric ceramic material and its preparation method |
| 08/26/1986 | US4608238 Sulfuric acid absorption of fluorine in effluent gases |
| 08/19/1986 | US4606503 Reduction of viscosity with zeolite |
| 08/06/1986 | EP0189534A2 Process for reacting gases with suspensions |
| 08/05/1986 | CA1208884A1 Slaked lime, process for its production, and its use |
| 07/23/1986 | EP0188394A1 Process for purifying an aqueous solution of rare-earth salt by liquid-liquid extraction |
| 07/15/1986 | US4600570 Continuous controlled process for removing sulphur oxides gases from stack gases |
| 07/09/1986 | CN85100247A Preparation of bivalent europium activated barium fluochloride by carbon reduction |
| 07/08/1986 | CA1207269A1 Method of treating oil field produced fluids with chlorine dioxide |
| 07/08/1986 | CA1207130A1 Scrubber for the desulfurization of exhaust gases |
| 07/02/1986 | CN85100438A Process for recovering potassium form k2sif6-bearing gypsum |
| 07/02/1986 | CA1206727A Washing tower for the desulfurization of flue gases |
| 06/24/1986 | US4596661 Method for settling calcium carbonate |
| 06/17/1986 | US4595576 Process for flue gas desulfurization |
| 06/10/1986 | CA1205615A1 Iron chloride waste treatment in molten salt |
| 05/20/1986 | US4590049 Method for dry desulfurization of exhaust gas |
| 05/14/1986 | EP0181029A2 Continuous process for the preparation of phosphoric acid and of calcium sulphate |
| 05/13/1986 | US4588574 Process for the preparation of barium sulfate of increased flowability and density, suitable as a radio-opaque component in radiographic contrast agents, product obtained according to this process and the radiographic contrast agent produced therefrom |
| 05/13/1986 | US4588570 Method for the preparation of phosphoric acid and calcium sulphate |
| 05/10/1986 | CN85109003A Continuous process for preparing phosphoric acid and calcium sulphate |
| 05/06/1986 | USH59 Process for converting magnesium fluoride to calcium fluoride |
| 05/06/1986 | US4587112 Oxidfation, reaction with calcium compound |
| 04/30/1986 | EP0179597A2 Spherically shaped precipitated calcium carbonate, its preparation and use |
| 04/23/1986 | EP0178630A2 Process and apparatus for eliminating SO3, sulfuric acid and sulfuric-acid mist from flue gases |
| 04/16/1986 | EP0177769A2 Process for preparing calcium hydroxide |
| 04/02/1986 | EP0176443A1 Process for the valorization of the lime muds from the causticizing cycle of the Kraft process |
| 03/25/1986 | US4578257 Adding maleic anhydride and limestone to the absorbed solution andoxidizing to reproduce an absorbing solution |
| 03/18/1986 | US4576803 Method of producing calcium sulfate dihydrate in connection with the desulfurization of flue gases |
| 02/11/1986 | US4569677 Process for separating off calcium nitrate tetrahydrate by crystallization |
| 02/11/1986 | CA1200364A1 Gypsum conversion |
| 02/05/1986 | EP0169842A1 Method for the preparation of phosphoric acid and calcium sulphate. |
| 01/21/1986 | US4565675 Pollution control |
| 01/07/1986 | CA1198877A1 Process for purifying phosphogypsum |
| 12/31/1985 | US4562049 Recovery of titanium from perovskite by acid sulfation |
| 12/18/1985 | EP0164579A1 Agent for increasing the pH of dental plaque and process for preparing it |
| 12/17/1985 | US4559214 Particulate calcium carbonate |
| 12/11/1985 | EP0164192A1 Method and reactor for treating by-products from flue gas desulfurization |
| 12/05/1985 | WO1985005271A1 Agent for increasing the ph of the dental plate and preparation process thereof |
| 12/04/1985 | EP0163565A1 Process for preparing hydrogen fluoride by reacting sulphuric acid with fluor spar in a rotating furnace |
| 11/27/1985 | EP0162536A1 Apparatus for wet type flue gas desulfurization |
| 11/19/1985 | US4554140 Off-gas desulfurization process |
| 11/13/1985 | EP0161050A1 Process for treating and recovering pickling waste liquids for stainless steel |
| 11/12/1985 | US4552683 Gas desulfurization reactant |
| 10/30/1985 | EP0159807A2 Method for oxidation of flue gas desulfurization absorbent and the product produced thereby |
| 10/16/1985 | EP0158269A2 Process for the preparation and the purification of aqueous solutions of calcium hydroxide |
| 10/15/1985 | US4547349 Method of slaking lime |
| 10/15/1985 | CA1195090A1 Method of producing calcium sulfate dihydrate in conjunction with the desulfurization of flue gases |
| 10/01/1985 | US4544542 Calcium sulfate useful as building material |
| 10/01/1985 | CA1194274A1 Causticization method |
| 09/10/1985 | CN85100187A Process for chemcial separation of phosphate ore |
| 09/10/1985 | CA1193072A1 Destruction of halogen-containing materials |
| 09/04/1985 | EP0080478B1 N-hydroxyethylated macrocyclic polyamines, the preparation of such amines and their use |
| 09/03/1985 | US4539184 Formation of calcium sulfate by oxidation and precipitation |