| Patents for C22B 26 - Obtaining alkali, alkaline earth metals or magnesium (2,661) |
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| 12/15/1999 | EP0964068A1 Moisturized protective atmosphere containing sulphur hexafluoride for magnesium production |
| 12/15/1999 | EP0963452A1 Method for production of magnesium |
| 12/14/1999 | US6001316 Method for treatment of waste material and recovering MgCl2 |
| 11/30/1999 | US5993757 Oxime metal extractant, and aldehyde or ketone degradates in a water immiscible hydrocarbon solvent is reoximated thereby restoring the oxime extractant organic phase for further extraction in the metal extraction circuit. |
| 11/23/1999 | US5989505 Method for recovery of alkali values from trona using air stripping |
| 11/17/1999 | CN1235645A Production of magnesium |
| 11/15/1999 | CA2235424A1 Process for the preparation of a magnesium chloride solution by quick lixiviation of asbestos tailings |
| 11/10/1999 | CN1046253C Method for preparing caesium and ribidium salt solution |
| 11/09/1999 | US5980854 Method for the production of a magnesium chloride solution |
| 11/09/1999 | US5980842 Separation of calcium from metal compounds |
| 11/09/1999 | US5980605 Carbothermal production of alkali metals |
| 10/27/1999 | CN1232956A Structure and manufacture of magnesium-smelting reducing tank of composite material |
| 09/22/1999 | CN2339588Y Magnesium-smelting reduction pot |
| 09/22/1999 | CN1229400A Process for producing anhydrous MgC12 |
| 09/08/1999 | EP0799155B1 Manufacture of carbonyl fluoride |
| 09/08/1999 | CN2337159Y Durable magnesium-smelting pot |
| 09/01/1999 | CN2335976Y High purity metallic magnesium distillator |
| 09/01/1999 | CN2335975Y High purity metallic magnesium distillation electric furnace |
| 08/11/1999 | CN2332732Y Verticle reducing magnesium metallurgy plant |
| 08/10/1999 | US5935380 Spray-drying a solution or slurry comprising (alkali metal or ammonium) (metal) hexacyanoferrate particles in a liquid, to provide monodisperse, substantially spherical particles in a yield of at least 70 percent of theoretical yield |
| 08/05/1999 | WO1999039026A1 Method for producing magnesium from oxide chloride-containing raw materials |
| 07/14/1999 | CN1044137C Treating method for waste slag of smelting magnesium |
| 07/08/1999 | WO1999034473A1 Recycling of galvanic cells |
| 07/08/1999 | CA2313173A1 Recycling of galvanic cells |
| 06/03/1999 | WO1999027144A1 Operation method of furnace equipment for magnesium alloys |
| 06/03/1999 | CA2311361A1 Operation method of furnace equipment for magnesium alloys |
| 06/01/1999 | US5908488 Magnesium melting furnace and method for melting magnesium |
| 06/01/1999 | CA2240446A1 Bromide salts as weightening agents for molten salts |
| 05/18/1999 | US5904748 Production of elementary volatile metals by thermal reduction of their oxides with the aid of another metal |
| 05/04/1999 | US5900221 Process of preparing a solution of cesium and rubidium salts |
| 04/29/1999 | DE19747002A1 Three-chamber magnesium melting furnace |
| 04/21/1999 | EP0909447A1 Method for cesium removal from radioactive waste liquids and method for producing hexacyanoferrates |
| 04/21/1999 | EP0909335A1 Treatment of fly ash/apc residues including lead salt recovery |
| 04/15/1999 | WO1999002287A8 Method of fluxless melting of magnesium |
| 04/14/1999 | CN1214026A Adsorbent for cesium ion and method or making and using |
| 04/07/1999 | CN2312944Y Magnesium-smelting reduction pot |
| 04/07/1999 | CN1042841C Pipe type thermal method magnesium-smelting production technology and its equipment |
| 03/30/1999 | US5888398 Composition and process for separating cesium ions from an acidic aqueous solution also containing other ions |
| 03/24/1999 | EP0804624B1 Chloride assisted hydrometallurgical copper extraction |
| 03/24/1999 | CN2311494Y Reducing pot vertical metal magnesium reducing kiln |
| 03/18/1999 | WO1999012878A1 Solvent and process for extracting cesium from alkaline waste solutions |
| 03/16/1999 | US5882811 Method for recovering lithium cell materials |
| 03/10/1999 | CN2310075Y External and internal inlaid stuck refractory material structure for magnesium smelting reduction tank |
| 03/09/1999 | US5879829 Treatment chamber coupled with preparation chambers capable of maintaining air tightness; protective devices |
| 02/25/1999 | WO1999009226A1 Chloride assisted hydrometallurgical extraction of nickel and cobalt from sulphide or laterite ores |
| 02/25/1999 | WO1999009225A1 Chloride assisted hydrometallurgical extraction of copper from sulphide ore materials |
| 01/21/1999 | WO1999002287A1 Method of fluxless melting of magnesium |
| 01/20/1999 | EP0891298A1 Method for recovering sodium from alkaline industrial waste |
| 01/07/1999 | EP0889142A1 Retort furnace for the production of magnesium |
| 12/30/1998 | WO1998059385A1 Lithium recovery and purification |
| 12/30/1998 | WO1998058875A1 PROCESS FOR PRODUCING ANHYDROUS MgCl¿2? |
| 12/30/1998 | CA2260976A1 Process for producing anhydrous mgcl2 |
| 12/23/1998 | EP0885169A1 Adsorbent for cesium ion and method of making and using |
| 12/23/1998 | CN1202529A Purifying process for producing high purity metal magnesium |
| 12/22/1998 | US5851500 Removal of uranium contamination from magnesium fluoride slag |
| 12/02/1998 | CN2299070Y Continuously producing unit for magnesium |
| 11/25/1998 | CN1199710A Process for recovery of lithium and other metals and salts from brines in helminthoid evaporating system using solar energy |
| 11/24/1998 | CA2053718C Method and apparatus for remelting and refining of magnesium and magnesium alloys |
| 10/21/1998 | EP0789608A4 Processes for separating cesium from industrial streams containing other alkali metals using poly(hydroxyarylene) polymeric resins |
| 10/14/1998 | EP0701630B1 Solid bonded oxygen-donor macrocyclic ligands for removing and concentrating metals |
| 09/11/1998 | WO1998039492A1 Reoximation of metal extraction circuit organics |
| 09/11/1998 | CA2289463A1 Reoximation of metal extraction circuit organics |
| 09/09/1998 | EP0862659A1 METHOD FOR RECOVERING NICKEL FROM HIGH MAGNESIUM-CONTAINING Ni-Fe-Mg LATERITIC ORE |
| 09/08/1998 | US5804138 Flux for fire prevention in magnesium |
| 09/08/1998 | US5803947 Method of producing metallic magnesium, magnesium oxide or a refractory material |
| 09/02/1998 | CN2289800Y Nonmetal magnesium reduction pot |
| 08/05/1998 | CN1039436C Process for producing sodium salts from brines of sodium ores |
| 08/04/1998 | US5789496 Contacting with phenol-formaldehyde polymers for salt formation and as ligands |
| 07/28/1998 | US5787332 Process for recovering tantalum and/or niobium compounds from composites containing a variety of metal compounds |
| 07/28/1998 | US5785732 process and apparatus for recovering Na from spent NaS cells |
| 07/21/1998 | US5782952 Reacting magnesium oxide with light hydrocarbon gas |
| 07/01/1998 | CN2285299Y Reduction pot for obtaining magnesium |
| 06/18/1998 | CA2225113A1 Method for treatment of waste material and recovering mgc12 |
| 06/17/1998 | CN1184857A Method and equipment for vacuum distillation puritying metallic lithium |
| 06/16/1998 | CA2062350C Process for recovery of nickel and magnesium from a naturally occurring material |
| 06/10/1998 | CN1038668C Process for producing a caesium and rubidium salt solution with high density |
| 06/03/1998 | CN1183480A Reduction tank for smelting metal magnesium and method for making said tank |
| 04/08/1998 | EP0834584A1 Recovery of tantalum and/or niobium from metalfluoride containing materials and ore residues with use of sulfuric acid roasting |
| 04/07/1998 | US5736113 Method for beneficiation of trona |
| 03/26/1998 | CA2212714A1 Process for recovering tantalum and/or niobium compounds from compositescontaining a variety of metal compounds |
| 03/05/1998 | WO1998008992A1 Method for production of magnesium |
| 03/05/1998 | CA2264684A1 Method for production of magnesium |
| 03/04/1998 | EP0668935B1 A method of producing metallic magnesium, magnesium oxide or a refractory material |
| 02/25/1998 | EP0825269A2 Carbothermal production of alkali metals |
| 02/25/1998 | EP0825268A1 Production of elemental volatile metals by thermal reduction of their oxides with the aid of another metal in a solar reactor |
| 02/20/1998 | CA2213311A1 Carbothermal production of alkali metals |
| 02/11/1998 | CN2274192Y Magnesium-smelting reduction pot with sealing plug |
| 02/04/1998 | CN2273714Y Composite reduction pot to produce magnesium by silicon-thermate method |
| 02/03/1998 | US5714129 Oxidation of lithium electrode with aqueous protonic solvent for recovery; battery waste recycling |
| 01/14/1998 | EP0728222B1 Compact molten metal processing ladle |
| 01/14/1998 | CN1170393A Manufacture of carbonyl fluoride |
| 12/31/1997 | WO1997050092A1 Method for cesium removal from radioactive waste liquids and method for producing hexacyanoferrates |
| 12/29/1997 | EP0772696A4 Method for removing alkaline sulfate scale |
| 12/16/1997 | US5698158 Vacuum distillation apparatus for producing ultra high purity material |
| 12/10/1997 | CN1167161A Reductive agent of silicon aluminium rare earth for metallurgy and preparation method thereof |
| 12/03/1997 | CN1166532A Magnesium-smelting reducer with vertical reducing chamber and continuous charger and relevant technological process |
| 11/27/1997 | WO1997044500A1 Treatment of fly ash/apc residues including lead salt recovery |
| 11/27/1997 | CA2253644A1 Treatment of fly ash/apc residues including lead salt recovery |
| 11/19/1997 | CN1165206A Method of producing magnesium from raw material containing sulfates |
| 11/12/1997 | CN1164830A Process for separating cesium from industrial streams containing other alkali metals using poly(hydroxyarylene) polymeric resins |