Patents for C01F 11 - Compounds of calcium, strontium, or barium (8,019)
06/1995
06/28/1995CN1104181A Precipitated barium sulfate production method by using slat mud
06/28/1995CN1104180A Method for production of active calcium carbide
06/28/1995CN1104179A Super-fine active calcium carbide production method
06/28/1995CN1029111C Comprehensive utilization of ludwigite
06/27/1995US5427757 Wet processing, separation, recovering
06/27/1995US5427691 Precipitation of heavy metals as hydroxides along with calcium sulfate solids to form stable sludge; two step process
06/21/1995CN1103785A A calcium containing composition with high oral bioavailability, manufacturing method of such a composition, health food containing such a composition, and pharmaceutical composition containing such..
06/20/1995CA1336021C Process for separating salts in seawater
06/08/1995WO1995015293A1 An ultra fine powder calcium oxide, preparation and use thereof
06/07/1995EP0656154A1 Process for disposing of sodium-sulphur accumulator cells.
06/06/1995US5422092 Composite metal hydroxide which is solid solution containing calcium hydroxide
05/1995
05/31/1995EP0655273A2 Process for purification of gases and exhaust gases
05/30/1995CA1335688C Vesiculated polymer granules and paper made therefrom
05/24/1995EP0654096A1 Methods of biomass pretreatment
04/1995
04/18/1995CA1335314C Dry ground/wet ground calcium carbonate filler compositions
04/05/1995EP0646099A1 Method for preparing an aqueous calcium sulphate-based suspension
04/04/1995US5403807 Single phase metal-alumina sol-gel process and material
04/04/1995CA1335034C Process for making calcium sulfate alpha-hemihydrate from calcium sulfate dihydrate
03/1995
03/15/1995EP0642467A1 DIRECT FORMATION OF -g(a)-CALCIUM SULFATE HEMIHYDRATE UNDER ATMOSPHERIC PRESSURE.
03/15/1995CN1100067A Precipitated calcium carbonate preparation using waste from dicyandiamide plant
03/14/1995US5397557 Sulfiding, salt formation, nematocides
03/14/1995US5397549 Apparatus to remove acid gases from a flue gas
03/14/1995CA1334775C Compatibility agent for polypigmentary aqueous suspensions containing a hydrated calcium sulfate pigment
03/08/1995EP0641267A1 PARTICULATE CaF 2? AND BaF 2? AGENT FOR IMPROVING THE MACHINABILITY OF SINTERED IRON-BASED POWER
03/08/1995EP0641266A1 PARTICULATE CaF 2? AGENT FOR IMPROVING THE MACHINABILITY OF SINTERED IRON-BASED POWDER
03/07/1995US5395806 Dense, granular alkaline earth metal carbonate and alkali metal salt composition for use in glass manufacture
03/02/1995WO1995005752A1 Reduced absorption of fatty acids
03/01/1995CN1099354A Method of producing strontium carbonate
02/1995
02/28/1995CA1334560C Precipitated calcium carbonate-cationic starch binder as retention aid system for paper making
02/16/1995WO1995004583A1 Complexation-mediated crystal-forming reactions using complexing agents
02/15/1995EP0638110A1 Improved process for preparing silica coated inorganic particles
02/14/1995CA1334332C Process for making construction grade calcium sulfate alpha hemihydrate from moist finely divided gypsum obtained from a power plant glue gas desulfurization
02/08/1995CN1098382A Method for preparation of hydrocarbon calcium carbonate by acid decomposition reclaiming circulation
02/02/1995WO1995003251A1 Method of making a pigment based on calcium carbonate and silicium dioxide usable as filler for paper
01/1995
01/25/1995CN2188092Y Drying device for preparing carbon-containing calcium carbonate with waste from dicyandiamide plant
01/18/1995EP0634754A1 Molten salt destruction of alkali and alkaline earth metals
01/18/1995EP0634105A1 Calcium containing composition
01/18/1995EP0633864A1 Clustered precipitated calcium carbonate particles
01/18/1995CN1097399A Wastes treating process for producing strontium carbonate
01/17/1995US5382423 Reaction of fluorine with calcium carbonate, vaporization, aeration, stirring, separation and ejection
01/14/1995CA2124915A1 Molten salt destruction of alkali and alkaline earth metals
01/10/1995US5380505 Forming calcium sulfate by sulfation of lime
01/03/1995US5378374 Lime addition system for water treatment
12/1994
12/27/1994US5376351 Acicular form from reaction of calcium carbonate and sulfuric acid; filler for paper
12/27/1994US5376343 Production of purified calcium carbonate
12/22/1994WO1994029003A1 Oxidation process
12/14/1994EP0628017A1 Methods and compositions for mineralizing and fluoridating calcified tissues
12/07/1994EP0356501B1 Process and apparatus for desulfurization
11/1994
11/30/1994CN1095648A Compositions and methods for waste treatment
11/23/1994CN1095361A Production method of granular barium hydroxide monohydrate and its equipment
11/22/1994US5366710 Process for removing nitrogen oxides and sulfur oxides from gaseous stream
11/22/1994US5366513 Preparation of granulated alkaline earth metal carbonate
11/16/1994CN1095080A Superfine heavy calcium carbonate and its process
11/15/1994US5364610 Process for preparation of high opacity precipitated calcium carbonate by reacting sodium carbonate with calcium hydroxide
11/09/1994EP0623555A1 Stabilized, halogen-containing resin composition, and composite metal oxide and process for the production thereof
11/09/1994EP0623400A1 Method for treating solid residues from domestic and/or industrial waste incineration and solid product thus obtained
11/08/1994US5362688 Preparation of granulated alkaline earth metal carbonate
11/08/1994US5362471 Dewatering to form moist powder, compaction by roll press into sheets and fracturing into chips
11/08/1994US5362461 Method for recovering calcium fluoride from fluoroetchant
11/02/1994EP0621800A1 Process for briquetting and compacting fine grained materials.
11/01/1994CA1332856C Reactivity - enhancing lime grinding agent, aqueous suspensions of refined lime and their uses
10/1994
10/30/1994CA2095170A1 Process for producing needle-shaped calcium carbonate particles
10/05/1994CN1093058A Methods and compositions for mineralizing an fluoridating calcified
09/1994
09/29/1994WO1994021556A1 Isolation of the calcium-phosphate crystals of bone
09/28/1994EP0616602A1 Process for producing a carbonate composition
09/28/1994EP0540540B1 Vaterite and production method
09/28/1994CN1092743A One-step process for producing barium chloride and nitrate, products and use
09/22/1994DE4308250A1 Sorption of CO2 by CaCl2 from the Solvay soda process
09/21/1994CN1092336A FGD performance enhancement by hydroclone
09/21/1994CN1025953C Method for prodn. of high purity barium carbonate
09/20/1994US5348689 Molten salt destruction of alkali and alkaline earth metals
09/14/1994EP0614948A1 Grinding of pigments consisting of alkaline earth metal compounds
09/14/1994CN1091995A Ammonia-Limestone scrubbing with by-product for use in agriculture
09/13/1994US5346618 Liquid chromatographic extraction medium
09/09/1994CA2117145A1 Ammonia-limestone scrubbing with by-product for use in agriculture
09/07/1994CN1091722A Method for production of crystallized barium oxide using electric arc
09/07/1994CN1025848C Prepn. of polycalcium carbonate composition
09/01/1994WO1994019282A1 High-activity calcium oxide, powder produced therefrom, process for producing the powder, and powdery preparation
08/1994
08/31/1994EP0498844B1 Apparatus and process for the production of acetylene.
08/31/1994CN1091391A Method for one-step de-carbon while production of calcium carbonate
08/30/1994US5342600 Slaking quicklime in aqueous medium, passing suspension of calcium hydroxide, carbonating and separating
08/24/1994CN1091007A High nutrition high curative effect easy to absorb calcium preparation-Namigai (Gaiwang)
08/23/1994US5340582 Barium sulfate cosmetic composition
08/23/1994US5340393 Process for preparing silica coated inorganic particles
08/16/1994US5338777 Fire retarders in thermoplastic, thermosetting resins
08/16/1994US5338709 Process for producing granulated strontium carbonate with a strontium-containing binder
08/04/1994WO1994016797A1 Method and apparatus for cleaning gases containing sulphur dioxide
08/04/1994DE4303000A1 Sepn. of sulphate(s) from industrial effluent by electrodialysis
08/03/1994CN1025555C Method for manufacturing crystal calcium carbonate
07/1994
07/27/1994EP0607840A1 Process for the preparation of carbonates by wet-grinding
07/26/1994US5332564 Process for production of rhombic shaped precipitated calcium carbonate
07/21/1994DE4400566A1 Wet grinding of natural or synthetic carbonate(s) to give finely divided prod
07/19/1994US5330731 Process for separation of zirconium-88, rubidium-83 and yttrium-88
07/12/1994US5328490 Calcium chloride salt manufacturing process
07/06/1994EP0604701A1 Method of sulfur dioxide removal from gaseous streams with alpha hemihydrate gypsum product formation
07/05/1994US5326549 Bimetal hydroxide
07/05/1994US5326432 Method of producing magnesium chloride hexahydrate and other alkaline earth salts
06/1994
06/28/1994US5324501 Method for the preparation of low-chloride plaster products from calcium-containing residues of flue-gas purification plants
06/28/1994US5324500 Method for processing residues of barium sulfide or strontium sulfide leaching
06/23/1994WO1994013845A1 Process for extracting rare-earth elements from phosphate ore
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