| Patents for C01F 11 - Compounds of calcium, strontium, or barium (8,019) |
|---|
| 08/03/1993 | US5232678 Slaking, carbonating and neutralizing using regant |
| 07/27/1993 | US5231225 Crystallization, extraction |
| 07/27/1993 | US5230734 Calcium-magnesium carbonate composite and method for the preparation thereof |
| 07/21/1993 | CN1074422A Method of recovering strontium chloride and strontium nitrate |
| 07/13/1993 | US5227025 Filler for paper, improved brightness, opacity, pigment scattering |
| 07/13/1993 | CA1320034C Process of preparing virtually cadmium-free calcium sulphate and calcium sulphate prepared according to this process |
| 06/30/1993 | EP0548543A1 Removal of sulfur dioxide from gas streams |
| 06/30/1993 | EP0548086A1 Method and dispersants for production of high solids aqueous calcium carbonate suspensions. |
| 06/29/1993 | US5223239 Method of preparing hydrated lime |
| 06/29/1993 | CA1319491C Process for preparation of an acid resistant coating on filler particles |
| 06/24/1993 | WO1993012038A1 Process for producing a carbonate composition |
| 06/24/1993 | WO1993011867A2 Process for briquetting and compacting fine grained materials |
| 06/24/1993 | CA2125695A1 Process for producing a carbonate composition |
| 06/23/1993 | EP0547284A1 Method for the recovery of calcium fluoride and ammonia from aqueous ammonium fluoride solution originating from waste from fuel element production |
| 06/23/1993 | CN2136830Y Carbonization device |
| 06/21/1993 | CA2083310A1 Removal of sulfur doxide from gas streams |
| 06/09/1993 | DE4140019A1 Verfahren zum brikettieren und kompaktieren von feinkoernigen anorganischen stoffen A method for briquetting and compacting of feinkoernigen inorganic substances |
| 06/08/1993 | CA1318982C Aqueous suspensions of calcium-containing fillers |
| 06/01/1993 | US5215734 Rhombohedral calcium carbonate and accelerated heat-aging process for the production thereof |
| 06/01/1993 | US5215672 Fine solids separation/classification; dewatering; mixing, thickening collecting |
| 06/01/1993 | US5215632 Adding calcium chloride and phosphate to form precipitate, separating, adding carbonate, separating second precipitate |
| 05/26/1993 | CN1072461A Combined transuranic-strontium extraction process |
| 05/26/1993 | CN1072391A Processing technology for wollastonite |
| 05/19/1993 | EP0542404A1 Detoxification of aluminum spent potliner |
| 05/18/1993 | CA1317739C Process of producing needle-shaped calcium carbonate particles |
| 05/12/1993 | EP0541329A1 Composite metal hydroxide and process for the production thereof |
| 05/12/1993 | EP0540540A1 Vaterite and production method. |
| 05/11/1993 | US5209905 Wet-type exhaust gas desulfurization system having a means for supplying air |
| 05/11/1993 | CA1317438C Method and system for manufacturing fine-grained silicon monoxide |
| 05/05/1993 | CN1071578A Natural biological calcium preparing process |
| 05/05/1993 | CA2081831A1 Stabilization of precipitated calcium carbonate |
| 05/04/1993 | US5207999 Generation of fluorine via thermal plasma decomposition of metal fluoride |
| 05/04/1993 | US5207997 Reaction of barium sulfide leaching residues with carbon dioxide or alkaline carbonate to produce a barium solid and hydrogen sulfide or alkali sulfide |
| 05/04/1993 | US5207973 Atomizing drops of aqueous solution by pulsed electric field; forming metal hydroxide; drying |
| 05/04/1993 | CA1317089C Economic recovery and utilization of boiler flue gas pollutants |
| 04/27/1993 | US5205493 Process for producing a carbonate composition |
| 04/20/1993 | US5204073 Toxicity elimination and comprehensive utilization of chrome residues |
| 04/14/1993 | CN1020273C Method for producing barium carbonate |
| 04/13/1993 | US5202103 Removal of sulfur dioxide from gas streams |
| 04/07/1993 | EP0536051A1 Method for recovering calcium fluoride from fluoroetchant |
| 04/07/1993 | EP0535156A1 Fluidized calcining process |
| 03/31/1993 | EP0534458A1 Process for producing gypsum flake from flue gas desulfurization |
| 03/30/1993 | US5198201 Pollution control |
| 03/24/1993 | CN1070165A Method for producing strontium hydroxide solution |
| 03/23/1993 | US5196472 Calcium carbonate particles; wear resistance, radiation transparent, sliding |
| 03/18/1993 | DE4130409A1 Prodn. of free flowing barium sulphate - by feeding aq. soln. of barium sulphate and organic polymer binder into centrifugal spray drier and drying with hot gas |
| 03/17/1993 | EP0531685A1 Mineral fillers and pigments containing carbonate |
| 03/16/1993 | US5194458 Surface modified fillers and compositions containing the same |
| 03/09/1993 | US5192518 Calcium carbonate absorbent, magnetic fly ash separation |
| 03/04/1993 | WO1993003997A1 Generation of fluorine via thermal plasma decomposition of metal fluoride |
| 03/03/1993 | EP0298120B1 Tabular acicular gypsum and method of filling paper |
| 03/02/1993 | US5190677 Dispersion in waxes, oil, greases |
| 02/24/1993 | EP0527831A1 Process to produce hydrogen and/or hemihydrate calcium sulphate from calcium sulphite |
| 02/24/1993 | CN1069207A Granulating technique of powdered strontium carbonate or barium carbonate |
| 02/18/1993 | WO1993002963A1 Method for preparing an aqueous calcium sulphate-based suspension |
| 02/16/1993 | CA1313583C Process of producing plate-shaped calcium carbonate particles |
| 02/03/1993 | EP0526121A1 Calcium-magnesium carbonate composite and method for the preparation thereof |
| 01/26/1993 | US5181662 Polymer or copolymer of a carboxylated monomer as a grinding aid |
| 01/21/1993 | WO1993000983A1 Process for cleaning an exhaust gas containing sulphur dioxide and possibly other pollutants |
| 01/20/1993 | EP0498844A4 Two-stage process for production of calcium chloride and acetylene |
| 01/20/1993 | CN1068087A Technology for barium chloride desulphurization |
| 01/19/1993 | US5180569 Process for the production of phosphoric acid and hydrogen fluoride from phosphate rock and fluosilicic acid |
| 01/19/1993 | CA1312987C Method for production of aqueous dispersion of inorganic pigment |
| 01/14/1993 | DE4123258A1 Verfahren zum reinigen eines schwefeldioxid und ggf. andere schadstoffe enthaltenden abgases Method for cleaning a sulfur dioxide and possibly other pollutants containing exhaust gas |
| 01/13/1993 | EP0522415A1 Ethylene glycol dispersion of crystalline calcium carbonate, crystalline calcium carbonate, and plastic molded product and polyester film containing the same |
| 01/13/1993 | EP0522234A1 Method for extracting rare-earth elements from phosphate ore |
| 01/12/1993 | US5179213 Macrocyclic ligands bonded to an inorganic support matrix and a process for selectively and quantitatively removing and concentrating ions present at low concentrations from mixtures thereof with other ions |
| 01/06/1993 | CN1067635A Process for preparing calcium polycarbonate composition |
| 12/30/1992 | CN1067420A Process for preparing ultra-fine low-sulphur barium carbonate |
| 12/29/1992 | US5174972 Fluorogypsum waste solidification material |
| 12/23/1992 | CN1067302A Method of and means for exploiting fuel having high sulfur content |
| 12/23/1992 | CN1019569B Process for producing strontium carbonate |
| 12/22/1992 | US5173284 Process for preparation of purified calcium sulfate in an aqueous medium |
| 12/22/1992 | US5173279 Method and composition for treating flue or exhaust gases utilizing modified calcium hydroxide |
| 12/15/1992 | US5171572 Barium sulfate and cosmetic compositions comprising same |
| 12/10/1992 | WO1992021613A1 Precipitated calcium carbonate particles from basic calcium carbonate |
| 12/08/1992 | US5169609 Using crown ether and an alkyl(phenyl-)-N,N-dialkylcarbamoyl-methylphosphine oxide, strip with tetrahydrofuran-2,3,4,5-tetracrboxylic acid |
| 12/08/1992 | US5169444 Process for preparing calcium sulfate anhydrite |
| 12/02/1992 | EP0515757A1 Porous particles of calcium carbonate and method for the preparation thereof |
| 12/02/1992 | CN1066637A Process for puducting excellent strontium carbonate from celestite |
| 12/01/1992 | US5167938 Process for strontium-82 separation |
| 12/01/1992 | CA1310941C Natural calcium carbonate ores |
| 11/25/1992 | EP0306511B1 Process for converting calcium sulphate dihydrate into alpha-hemihydrate |
| 11/18/1992 | CN1066296A Method for treatment of chromium slag for comprehensive toxicity removal |
| 11/17/1992 | US5164174 Detoxification of aluminum spent potliner by thermal treatment, lime slurry quench and post-kiln treatment |
| 11/17/1992 | US5164172 Process for producing aragonite crystal form calcium carbonate with acicular shape |
| 11/17/1992 | US5164171 Removal of carbonate from caustic sulfide solution |
| 11/04/1992 | CN1065874A Process for refining and bleaching barite powder |
| 10/28/1992 | CN1065641A Preparing method for strontium carbonate with by-products of sodium hydrosulfide and ammonium chloride |
| 10/22/1992 | DE4211336A1 Enhanced sulphur oxide recovery in flue gas desulphurisation - by enrichment of boiler furnace fuels with waste sulphur-contg. materials |
| 10/20/1992 | US5156719 Acid-stabilized calcium carbonate, process for its production and method for its use in the manufacture of acidic paper |
| 10/15/1992 | DE4112108A1 Recycling harmful residue from barium sulphide, lithopone and blanc fixe mfr. - by lixiviation with soda under pressure then hydrochloric acid at atmos. pressure |
| 10/14/1992 | CN1018625B Making method of sodium hydroxide |
| 10/07/1992 | EP0507260A1 Solid-state preparation of high purity barium sulfate |
| 10/01/1992 | WO1992016453A1 Reduction of sulfur emissions from coal-fired boilers |
| 09/30/1992 | EP0505607A1 Sulfur dioxide removal process with gypsum and magnesium hydroxide production |
| 09/30/1992 | EP0505551A1 Carbonate-free inorganic nitrates or oxides and process for production thereof |
| 09/30/1992 | CN1064851A Process for manufacturing strontium carbonate |
| 09/29/1992 | CA1307903C Tabular acicular gypsum and method of filling paper |
| 09/15/1992 | US5147506 Compatibility agent for aqueous polypigmentary suspensions containing hydrated calcium sulfate |