| Patents for C01D 17 - Rubidium, caesium, or francium compounds (266) |
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| 02/23/1995 | DE4339062C1 Process for preparing a caesium and rubidium salt solution |
| 11/10/1994 | WO1994025422A1 Method of preparing caesium salts from caesium aluminium alum |
| 11/02/1994 | CN1094332A Enriching extraction of rubidium from bittern |
| 10/27/1994 | WO1994024138A1 Calix|4|arene crown ethers, method for preparing same, and use thereof for the selective extraction of caesium and actinides |
| 05/26/1994 | WO1994011303A1 Process for producing a high-density caesium and rubidium salt solution |
| 05/24/1994 | US5314641 Production of crystallites of cerium/lanthanum/terbium phosphates from insoluble rare earth salts |
| 04/14/1994 | DE4313480C1 Prepn. of water-soluble caesium salt from caesium-aluminium alum - by reaction with calcium hydroxide and soluble calcium salt in amts. equimolar to aluminium and caesium in water, without adding barium cpd. |
| 04/07/1994 | DE4237954C1 Verfahren zur Herstellung einer Cäsium- und Rubidiumsalzlösung mit einer Dichte von 1,6 bis 3,3 g/cm ·3· A process for preparing a cesium and rubidium salt solution having a density from 1.6 to 3.3 g / cm 3 · · |
| 12/29/1993 | EP0575961A2 Preparation of potassium and cesium fluorides |
| 08/31/1993 | US5240467 Purification of inorganic salts, such as cesium iodide or chloride |
| 04/06/1993 | US5200041 Composite element incorporating a polyether or copolyether, its preparation process and its use for extracting and separating metal cations |
| 01/20/1993 | EP0524034A1 Mixed lanthanum terbium and cerium phosphate, process for its preparation from insoluble rare earth salts |
| 01/20/1993 | CA2074134A1 Lanthanum, terbium and cerium phosphate; process for preparing the same from insoluble salts of rare earths |
| 07/29/1992 | EP0496468A1 Multistage countercurrent recrystallization process and apparatus for performing same |
| 06/03/1992 | EP0488199A1 Process for granulating potassium salts |
| 05/28/1992 | CA2056240A1 Process for granulating potassium salts |
| 04/28/1992 | US5108726 Compacts of spray dried water soluble compounds |
| 02/04/1992 | US5085845 Heating and introducing steam; absorbers for liquid waste treatment |
| 11/19/1991 | US5066404 Purification using titania hydrate |
| 10/29/1991 | CA1291316C Recovery of cesium chloride from contaminated solutions |
| 05/08/1991 | EP0426048A2 Production and use of crystalline hydrogen-phosphate compounds having layer structure |
| 03/13/1991 | EP0416078A1 Composite element comprising a polyether or copolyether, process for its preparation and its use for the extraction and separation of metallic cations |
| 12/13/1990 | WO1990011390A3 Composite element comprising a polyether or copolyether, process for its preparation and its use for the extraction and separation of metallic cations |
| 12/11/1990 | US4976946 Solvent extraction by using N,N-dialkylamide or acetonitrile solvent |
| 11/22/1990 | EP0398149A1 Recovery of cesium chloride from pollucite ore |
| 09/18/1990 | WO1990011390A2 Composite element comprising a polyether or copolyether, process for its preparation and its use for the extraction and separation of metallic cations |
| 09/18/1990 | CA2030547A1 Composite element incorporating a polyether or copolyether, its preparation process and its use for extracting and separating metal cations |
| 07/03/1990 | US4938934 Recovery of cesium chloride from pollucite ore |
| 05/29/1990 | US4929588 Sodium removal, from brines |
| 03/08/1990 | WO1990002097A1 Compacts of spray dried water soluble compounds |
| 03/07/1990 | EP0356854A2 Treatment of inorganic salts contaminated with organic compounds |
| 08/22/1989 | US4859343 Ion exchanging using antimonic or polyantimonic acid |
| 03/02/1989 | DE3728003A1 Process for carrying out ion exchange reactions on micas |
| 11/03/1988 | DE3813454A1 Verfahren zur herstellung von anorganischen metallverbindungen mit ultrahoher reinheit Process for the preparation of inorganic metal compounds with ultra-high purity |
| 09/13/1988 | US4770861 Solvent extraction; precipitated cesium perchlorate and converting to cesium chloride |
| 01/05/1988 | US4717238 Infrared optical fiber |
| 12/08/1987 | USRE32556 Process for recovering cesium from cesium alum |
| 09/09/1987 | EP0235593A1 Recovery of cesium chloride from impure solutions |
| 06/02/1987 | CA1222377A1 Process for recovering cesium from cesium alum |
| 04/14/1987 | CA1220350A1 Process for recovering cesium from cesium alum |
| 07/01/1986 | US4597955 Process for recovering cesium from cesium ore |
| 12/24/1985 | US4560759 Polyether compound containing quinoline group and carboxylic acid group |
| 02/13/1985 | EP0132656A2 Process for recovering cesium from cesium alum |
| 01/23/1985 | EP0131810A1 Process for recovering cesium from pollucite |
| 01/16/1985 | EP0131206A1 Process for recovering cesium from cesium alum |
| 12/18/1984 | US4488949 Removal of sulfate ions from brine |
| 11/06/1984 | CA1177222A1 Apparatus for producing an alkali metal salt of a mineral acid, and a process |
| 09/04/1984 | US4469670 Reaction with permanganate |
| 08/21/1984 | US4466950 Process for recovering cesium from cesium alum |
| 07/17/1984 | US4460474 Process for the extraction of cesium ions from aqueous solutions using an adduct compound in solid form comprising a macrocyclical polyether and an inorganic heteropoly acid |
| 06/05/1984 | US4452702 Process for the extraction of cesium ions from aqueous solutions using an adduct compound containing a macrocyclical polyether and an inorganic heteropoly acid |
| 05/08/1984 | US4447406 Extraction with hydrochloric acid and precipitation with potassium permanganate |
| 01/24/1984 | US4427637 Muffle furnace with agitation means |
| 12/27/1983 | US4423159 Phenolic cation exchange resin material for recovery of cesium and strontium |
| 09/20/1983 | US4405576 Removal of sulfate ions from brine |
| 05/24/1983 | CA1146892A1 Recovery of alkali metal constituents from coal conversion residues |
| 03/09/1983 | EP0073263A1 Process for separating cesium ions from aqueous solutions |
| 03/09/1983 | EP0073262A1 Process for separating cesium ions from aqueous solutions by using an addition compound consisting of a macrocyclic polyether and an inorganic heteropolyacid |
| 03/09/1983 | EP0073261A1 Process for removing cesium ions from solutions by using an addition compound in solid form of a macrocyclic polyether and an inorganic heteropolyacid |
| 03/10/1982 | EP0046829A1 Recovery of alkali metal constituents from coal conversion residues |
| 09/29/1981 | US4292227 Polyelectrolytes |
| 04/14/1981 | US4261961 Process for the extraction of potassium from aqueous alkaline solution |
| 04/08/1980 | CA1075013A1 Recovery of cesium and palladium from nuclear reactor fuel processing waste |
| 12/25/1979 | US4180551 Ion exchanging |
| 09/05/1978 | US4111991 Amine halides from a halogen, a hydrazine and an amine |
| 09/07/1976 | US3979498 Recovery of cesium and palladium from nuclear reactor fuel processing waste |