| Patents for C22B 26 - Obtaining alkali, alkaline earth metals or magnesium (2,661) |
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| 01/24/1995 | US5383953 Method of producing magnesium vapor at atmospheric pressure |
| 12/08/1994 | WO1994027725A1 Beneficiation of saline minerals |
| 11/24/1994 | WO1994026943A1 Process for removing, separating, and concentrating metals |
| 11/01/1994 | CA1332789C Method of producing magnesium by the metallothermic reduction of magnesium oxide |
| 10/13/1994 | WO1994023074A1 Process for producing sodium salts from brines of sodium ores |
| 10/05/1994 | EP0618633A1 Lithium cell treating method and lithium cell treating apparatus |
| 09/07/1994 | EP0613453A1 Process for the removal of sodium values from sodium contaminated solids |
| 09/06/1994 | US5344623 Solvent extraction, crown ethers |
| 08/31/1994 | EP0613198A1 Method for recovering lithium cell materials |
| 08/31/1994 | CN2175765Y Colling end of horizontal cylinder for hot coking magnesium |
| 07/06/1994 | CN2170952Y Cross pot type reducing furnace for magnesium smelting by hot reducing method |
| 06/22/1994 | CN1088268A Process of recoverying magnesium from magnesium slag |
| 06/09/1994 | WO1994012502A1 Bis-crown calix[4]arenes, method for preparing same and use thereof for selectively recovering cesium and actinides |
| 05/26/1994 | WO1994011539A1 A method of producing metallic magnesium, magnesium oxide or a refractory material |
| 05/26/1994 | WO1994011303A1 Process for producing a high-density caesium and rubidium salt solution |
| 04/28/1994 | WO1994002417A3 Process for the removal of sodium values from sodium contaminated solids |
| 04/12/1994 | US5302185 Using protective gas inert to metal within defined temperature range but which reacts to form solid or solution outside of defined temperature range |
| 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 · · |
| 03/31/1994 | WO1994006945A1 Refined magnesium material and process for producing the same |
| 03/31/1994 | CA2144421A1 Refined magnesium material and method for producing the same |
| 02/11/1994 | EP0649560A4 Process for selectively concentrating the radioactivity of thorium containing magnesium slag. |
| 02/03/1994 | WO1994002417A2 Process for the removal of sodium values from sodium contaminated solids |
| 02/03/1994 | CA2132638A1 Process for the removal of sodium values from sodium contaminated solids |
| 02/01/1994 | US5283054 Process for producing sodium salts from brines of sodium ores |
| 02/01/1994 | US5282882 Agitating with iron and molybdenum sulfides; precipitation of calcium sulfide and iron/molybdenum silicides |
| 12/21/1993 | CA1325337C Process of producing alkali metals |
| 12/09/1993 | WO1993024199A1 Method for removing alkaline sulfate scale |
| 09/02/1993 | WO1993017136A1 Fluxless melting and refining of magnesium and/or magnesium alloys |
| 08/12/1993 | DE4203193A1 Handling process for magnesium and magnesium alloy melts - with contamination free charging and melting in protective atmosphere, constant melt feed by differential pressure and controlled furnace pressure |
| 07/14/1993 | EP0550739A1 Improved process for purifying magnesium |
| 07/13/1993 | US5226952 Nitride process for refining calcium |
| 06/29/1993 | US5223181 Solubilizing magnesium from slurrying using carbon dioxide, filtering |
| 06/23/1993 | EP0366701B1 Magnesium production |
| 06/16/1993 | EP0546456A1 Process for handling alkali metals |
| 05/27/1993 | DE4216540C1 Recovery of nickel and magnesium from natural substances |
| 05/18/1993 | US5211745 Nickel processing |
| 05/12/1993 | CN1071967A Extraction of metal magnesium from boron slugde by silithermy |
| 04/29/1993 | WO1993003188A3 Improved process for purifying magnesium |
| 04/28/1993 | CN2130821Y Reduction pot charging apparatus for obtaining magnesium by silicon heating process |
| 04/07/1993 | CN1070691A Recovery of metal values from aqueous solutions |
| 04/06/1993 | CA1315545C Apparatus for treating molten metal |
| 03/09/1993 | CA1314145C Apparatus for filtering molten scraps of metal for regeneration |
| 01/27/1993 | WO1993003188A2 Improved process for purifying magnesium |
| 01/27/1993 | CA2092815A1 Process for purifying magnesium |
| 12/16/1992 | CN1067071A Technology and apparatus for industrial pnduction of nonferrous metals (sr, ba, etc, ) by vacuum thermal reduction process |
| 12/02/1992 | EP0516558A1 Method for refining calcium using nitride |
| 12/01/1992 | US5167700 Method and apparatus for remelting and refining or magnesium and magnesium alloys |
| 10/13/1992 | US5154897 With glass adsorbent to preferentially adsorb daughter isotopes |
| 09/28/1992 | WO1992017887A1 Process for selectively concentrating the radioactivity of thorium containing magnesium slag |
| 09/28/1992 | CA2107111A1 Process for selectively concentrating the radioactivity of thorium containing magnesium slag |
| 09/15/1992 | US5147450 Process for purifying magnesium |
| 08/25/1992 | CA1306614C Producing volatile metals |
| 07/29/1992 | EP0236480B1 Production of hydrogen by deserpentinization of ultramafic rock |
| 06/16/1992 | CA1303327C Production of pure magnesium chloride solution from siliceous magnesiumminerals |
| 05/12/1992 | US5112584 Leaching magnesite with hydrochloric acid |
| 03/31/1992 | US5100585 Nuclear reactor by-product, crown ethers in diluents |
| 03/31/1992 | US5100465 Kroll reduction process |
| 03/24/1992 | US5098471 Separation of magnesium from magnesium chloride and zirconium and/or hafnium subchlorides in the production of zirconium and/or hafnium sponge metal |
| 03/03/1992 | CA1296531C Chlorination of ores containing alkali or alkaline earth values |
| 02/25/1992 | US5091161 Leaching with hydrochloric acid, adding magnesia to slurry to precipitate impurities, filtering |
| 02/25/1992 | US5090996 Reducing calcined dolomite or magnesium oxide with ferro-silicon; heating with plasma or arc |
| 01/28/1992 | US5084092 Method of separating metals from catalyst material |
| 12/25/1991 | CN1015163B Method for prodn. magnesium chloride |
| 12/04/1991 | CN2089936U Electric internal thermal reducing furnace using new smelting mg |
| 12/03/1991 | US5069894 Process for preparing finely divided highly reactive magnesium and use thereof |
| 10/15/1991 | US5057194 Salt-based melting process |
| 09/25/1991 | EP0240507B1 Chlorination of ores containing alkali or alkaline earth values |
| 09/10/1991 | CA1288599C Process for the stripping of cesium ions from aqueous solutions |
| 05/30/1991 | WO1991007512A1 Acid digestion of caustic calcined magnesite |
| 05/28/1991 | US5019158 Adding alumina to produce aluminum and lithium oxide; calcium oxide and aluminum nitride formation |
| 04/21/1991 | CA2025161A1 Method for selectively recovering lead, zinc and calcium from materials in which they are contained as oxide or salts not soluble in water |
| 02/20/1991 | CN1049381A Obtaining metal magnesium with vacuum-thermal method by burning magnesite slightly in magnesite |
| 02/13/1991 | CN1011581B Production of elements and compounds by deserpentinization of ultramatic rock |
| 02/12/1991 | CA1279976C Production of pure mgc12 solution suitable for the production of magnesium metal from an impure magnesite ore or concentrate |
| 01/02/1991 | CA1278431C Thermal production of magnesium |
| 12/12/1990 | EP0402288A2 Process for the separation of calcium and nitrogen from lithium |
| 12/04/1990 | CA1277144C Production of magnesium metal from magnesium containing materials |
| 10/16/1990 | US4963264 Process for selective dialysis using polymeric affinity adsorbents and size selective membranes |
| 10/09/1990 | US4961783 Mixture of boron oxide or boric acid and a flux |
| 09/19/1990 | EP0388010A1 Filters for light metals |
| 09/19/1990 | EP0387337A1 Process for producing high purity magnesium |
| 08/23/1990 | CA2009272A1 Filters for light metals |
| 07/31/1990 | CA1272033A1 Process and device for lithium purification |
| 06/06/1990 | EP0371832A1 Recovery of Gallium contained in aqueous solutions |
| 05/09/1990 | EP0366701A1 Magnesium production. |
| 04/17/1990 | US4917728 Adding liquid alloying material; heat treatment |
| 03/08/1990 | WO1990002209A1 Process for producing high purity magnesium |
| 01/16/1990 | US4894208 Sodium, aluminum, plating |
| 01/09/1990 | US4892653 Cold trap for the purification of liquid metals containing dissolved impurities |
| 01/02/1990 | US4891065 Process for producing high purity magnesium |
| 12/19/1989 | US4888052 Producing volatile metals |
| 10/25/1989 | EP0338719A1 A process for the separation of sodium and calcium from sodium sludge |
| 10/03/1989 | CA1262031A1 Production of elements and compounds by deserpentinization of ultramafic rock |
| 09/21/1989 | WO1989008723A1 Recovery of lithium from a lithium bearing silicate ore |
| 06/27/1989 | US4842254 Apparatus for purifying lithium |
| 05/16/1989 | US4830816 Getter trap for removing hydrogen and oxygen from a liquid metal |
| 05/03/1989 | CN1004081B Process and apparatus for purifying lithium |
| 04/18/1989 | US4822412 Method of removing lithium from aluminum-lithium alloys |
| 04/04/1989 | US4817918 Apparatus for filtering molten scraps of metal for regeneration |
| 03/14/1989 | US4812168 Process for carbothermic production of alkaline earth metal aluminide and recovery of same |