Patents for C01F 11 - Compounds of calcium, strontium, or barium (8,019) |
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06/07/1988 | US4749518 Extraction of cesium and strontium from nuclear waste |
06/07/1988 | CA1237644A1 Process for treating and recovering pickling waste liquids for stainless steel |
06/01/1988 | DE3639612A1 Process for treating dry residues from the desulphurisation of gases with a calcium-containing absorbent |
05/31/1988 | US4747957 Brine treatment using ethylene carboxylic acid polymers |
05/31/1988 | US4747954 Ethylene-unsaturated acid copolymer |
05/11/1988 | EP0267031A1 Desulfurization of gypsum |
05/11/1988 | EP0266571A1 Process for converting by-products of wet flue gas desulfurisation plants |
04/21/1988 | DE3635050A1 Continuous preparation of barium sulphate |
04/06/1988 | EP0263057A1 Method for desulfurizing smoke |
04/06/1988 | EP0262396A2 Process for the preparation of calcium sulphate dihydrate during flue-gas desulfurization |
03/30/1988 | EP0261110A1 Flue-gas purifying procedure |
03/29/1988 | US4734272 Removing fluorine, use sulfur values to make sulfuric acid |
03/29/1988 | CA1234538A1 Scrubber for an apparatus for the desulfurization of flue gas |
03/24/1988 | WO1988001990A1 Improved binders for refractories |
03/24/1988 | DE3727801A1 Process for producing flue gas gypsum in the course of the flue gas desulphurisation of power station boiler firings |
03/22/1988 | US4732748 Fillers or opacifiers for paper |
03/09/1988 | CN86105875A Noval technology in the production of high grade barium chloride |
03/02/1988 | EP0257458A2 Scrubbing agent and process for producing the same |
02/23/1988 | US4726938 Liquid/liquid extraction/purification of impure solutions of rare earth values |
02/18/1988 | DE3625029A1 Process for the continuous treatment of reaction products from flue gas scrubbers with simultaneous removal of sulphur dioxide and nitrogen oxides |
02/17/1988 | CN86105577A New technique producing deposited barium sulphate by salt-melting |
02/10/1988 | CN86104945A Production method of hydroxides, thiosulfates, sulfates and sulfur |
02/09/1988 | US4724132 Cross-pipe reactor to provide extreme mixing and agitation |
01/28/1988 | DE3722360A1 Fluidised bed calcination |
01/28/1988 | DE3625186A1 Process for preparing settable calcium sulphates and their use |
01/26/1988 | US4721610 Ejection, oxidation |
01/21/1988 | DE3706533A1 Process for converting barium from heavy spar (barytes, barite) into an aqueous solution |
01/20/1988 | EP0253570A2 Method and structure for forming a reaction product |
01/20/1988 | EP0253552A2 Preparation of unagglomerated metal oxide particles with uniform particle size |
01/20/1988 | EP0253454A1 Process for the removal of heavy metals from acid, phosphate-containing aqueous media |
01/20/1988 | CN87104559A Method for production of strontium salt using strontianite |
01/13/1988 | EP0252099A1 Magnesium cement |
01/07/1988 | DE3621333A1 Process for the degradation of waste gypsum and apparatus for carrying out the process |
01/06/1988 | CN85100710B Low qm piezoelectric ceramic material and its preparation method |
12/30/1987 | CN86104367A Making pptd. barium sulfate by smelting process |
12/22/1987 | US4714603 Paper coating; treating calcium hydroxide slurry with carbon dioxide |
12/17/1987 | DE3619909A1 Process for preparing magnesium oxide and/or its hydration products |
12/15/1987 | US4713226 Abrasive grinding limestone slurry containing dissolved carbon dioxide |
12/02/1987 | EP0247987A1 A basic metal hydroxysulphate complex in solid form and a method for its manufacture |
12/01/1987 | US4710306 Adding a soluble aluminum salt ot a brine; neutralization and filtration |
11/19/1987 | EP0245897A1 Process of preparing virtually cadmium-free calcium sulphate and calcium sulphate prepared according to this process |
11/17/1987 | US4706651 Solar solids reactor |
11/11/1987 | EP0245122A2 Process for the purification of a barium salt |
11/05/1987 | DE3614789A1 Process for the wet desulphurisation of flue gases |
11/03/1987 | US4704265 Process for the manufacture of calcium chloride |
10/21/1987 | EP0241496A1 Process for simultaneous extraction of so 2? and no x? contained in waste gases |
10/20/1987 | CA1228343A1 Process for preparing finely divided limestone |
10/15/1987 | DE3612142A1 Combination process for separating off sulphur oxides and nitrogen oxides from flue gases |
10/06/1987 | US4698219 Multistage carbonation of calcium oxide and calcium sulfide |
10/01/1987 | DE3709392A1 Process for flue gas treatment |
09/30/1987 | CN87100989A Method for purifying barium ester |
09/24/1987 | WO1987005530A1 Flue-gas purifying procedure |
09/23/1987 | EP0237802A1 Process for the preparation of calcium sulphate anhydrite and curable calcium sulphates |
09/16/1987 | EP0237081A2 Process for the preparation of complex perovskite type compounds |
09/16/1987 | EP0236852A2 Process for reducing the chloride load of wet flue gas desulfurisation plants |
09/09/1987 | EP0235980A1 Textiles having stain resistance |
09/03/1987 | DE3605393C1 Process for the preparation of anhydrous calcium sulphate (anhydrite) |
09/01/1987 | US4690810 Disposal process for contaminated chlorosilanes |
08/26/1987 | CN87100674A Textiles having stain resistance |
08/18/1987 | US4687649 Flue gas desulfurization process |
08/18/1987 | US4687583 Controlled continuous rotation to deposit lime sludge on drum, then detaching |
08/13/1987 | DE3604383A1 Purification of gypsum from flue gas desulphurisation plants |
08/04/1987 | US4684529 Process for the preparation of iodizable calcium composition |
07/22/1987 | CN86104840A No effluent cyclic technology for preparing phosphoric acid by hydrochloric acid decomposition of phosphate ore and liquid-liquid extraction |
07/16/1987 | WO1987004145A1 Magnesium cement |
07/16/1987 | DE3600400A1 Process for conditioning lime slurry |
07/14/1987 | CA1224010A1 Method for oxidation of flue gas desulfurization absorbent and the product produced thereby |
07/14/1987 | CA1224009A1 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 |
07/08/1987 | EP0227893A2 Method of removing metal contaminants from solutions |
07/08/1987 | EP0140915B1 Catalytic process for accelerated decarboxylation of calcium carbonate and blend therefor |
07/08/1987 | CN85108510A Production of pigment from barite |
07/02/1987 | DE3538136A1 Recovery of valuable material from the simultaneous SO2 and NOx scrubbing of preferably flue gases downstream of power stations |
07/01/1987 | EP0226690A1 Process for the treatment of alpha calciumsulfat hemihydrate and the obtained product therefrom |
06/19/1987 | DE3543843A1 Process for the simultaneous scrubbing of SO2 and NOx from flue gases by the use of additives with low manganese content |
06/10/1987 | EP0224627A1 Method for desulfurizing exhaust gas |
06/04/1987 | WO1987003314A1 A process for causticizing of an aqueous solution containing alkali carbonate |
06/04/1987 | DE3640573A1 Process and plant for energy recovery from toxic waste materials with simultaneous disposal thereof |
06/03/1987 | EP0224209A2 Process for recovery of rare metals |
06/03/1987 | EP0223803A1 METHOD FOR SIMULTANEOUSLY REMOVING BY WASHING SO 2?, NO x? AND OPTIONALLY OTHER NOXIOUS SUBSTANCES CONTAINED IN FLUE GASES IN HEATING INSTALLATIONS SUPPLIED WITH FOSSILE FUELS |
06/02/1987 | US4670238 Humidification, electrostatic precipitation |
06/02/1987 | US4670224 Scrubber for the desulfurization of flue gases |
05/27/1987 | DE3541471A1 SO2 and/or SO2 and NOx scrubber with upstream calcium chloride recovery |
05/27/1987 | DE3541323A1 SO2 scrubbing downstream of combustion plants with crude gypsum as the end product |
05/26/1987 | US4668485 Recovery of sodium aluminate from Bayer process red mud |
05/19/1987 | US4666694 Method for treating by-products from flue gas |
05/19/1987 | US4666690 Method for removing sulfur dioxide from flue gases |
05/19/1987 | US4666688 Hydrochloric acid and ammonium carbonate treatments |
05/19/1987 | CA1221815A1 Off-gas desulfurization process |
05/07/1987 | DE3539261A1 Anhydrite for the production of dam construction materials in mining |
04/28/1987 | US4661634 Filtration through porous polymer particles in fiber form |
04/23/1987 | WO1987002269A1 Process for simultaneous extraction of so2 and nox contained in waste gases |
04/23/1987 | DE3537480A1 Process and plant for simultaneous separation of sulphur oxides and nitrogen oxides from flue gases |
04/21/1987 | CA1220615A1 Process for removing sulfur dioxide from off-gas |
04/16/1987 | DE3536312A1 Simultaneous separation-off of SO2/NOx in the aqueous phase with production of gypsum and SO2 release in the preliminary scrubbing stage |
04/14/1987 | CA1220398A1 Method for solidifying waste slime suspensions |
04/14/1987 | CA1220323A1 Process and apparatus for fluidized calcination of diamide lime, and desulfurizing agent |
04/07/1987 | US4655839 Landfillable composition from iron chloride waste treatment in molten salt |
04/02/1987 | DE3534390A1 Process for producing calcium sulphate alpha-hemihydrate from calcium sulphate dihydrate |
04/01/1987 | EP0216649A2 Method and system for manufacturing fine-grained silicon monoxide |
04/01/1987 | EP0216473A1 Extraction of cesium and strontium from nuclear waste |