| Patents for C25C 3 - Electrolytic production, recovery or refining of metals by electrolysis of melts (10,924) |
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| 04/29/1998 | CN1180112A Method for preparing thin tungsten powder by using molten-salt electrolysis |
| 04/28/1998 | US5744413 For hall-heroult cell for aluminum production |
| 04/23/1998 | CA2216923A1 Process for changing spent anodes of aluminum electrolysis cells and gas capture device |
| 04/22/1998 | EP0815290A4 Butt and thimble press |
| 04/22/1998 | CN1179478A Point-type connecting blanking and dry-purifying self-baking multi-anode aluminium electrolytic tank device |
| 04/15/1998 | EP0835951A1 Method and apparatus for extracting lithium by applying voltage across lithium-ion conducting solid electrolyte |
| 04/09/1998 | WO1998014622A1 Process for obtaining titanium or other metals using shuttle alloys |
| 04/09/1998 | CA2267601A1 Process for obtaining titanium or other metals using shuttle alloys |
| 04/08/1998 | EP0834601A1 Process for controlling the bath temperature in an aluminium electrolysis cell |
| 04/07/1998 | US5735930 Melting magma containing silicon carbide, basaltic clay, and metals with alkali hydroxide and oxidizing agent, injecting oxygen, electrolyzing, separating metals and other insolubles, crystallizing silicates |
| 03/31/1998 | US5733423 Device for separation of cast thimbles from anode bars |
| 03/26/1998 | WO1998012363A1 Ultrastable anodes for aluminum production cells |
| 03/26/1998 | CA2269727A1 Ultrastable anodes for aluminum production cells |
| 03/25/1998 | EP0831075A2 Carbon-containing ramming paste for use in aluminium production cells |
| 03/24/1998 | US5730855 Hoist apparatus and method for positioning anode in smelting furnace |
| 03/18/1998 | EP0828866A1 Lining for aluminum production furnace |
| 03/17/1998 | US5728466 Hard and abrasion resistant surfaces protecting cathode blocks of aluminium electrowinning cells |
| 03/17/1998 | US5728355 Method for recovering reusable rare earth compounds |
| 03/10/1998 | US5725744 Cell for the electrolysis of alumina at low temperatures |
| 03/04/1998 | CN2275586Y Air permeable piston type constant volum crust breaking feeding device for aluminium electrolysis |
| 03/04/1998 | CN1037621C Aluminium, silicon and titanium multielement alloy produced by electrolytic process |
| 02/24/1998 | US5720868 Method for producing electrolytic-pot-cell grade alumina from aluminum sulphate |
| 02/24/1998 | US5720860 Micropyretically-produced components of aluminum production cells |
| 02/18/1998 | CN1173552A Electrolytic magnesium production process using mixed chloride Fluoride electrolytes |
| 02/05/1998 | DE19630874A1 Apparatus for controlling the density of anode blocks during compaction on vibratory table |
| 02/04/1998 | CN1172507A Process for producing rare earth metals |
| 02/03/1998 | CA2073625C Process and apparatus for melting metals while reducing losses due to oxidation |
| 01/28/1998 | EP0821080A1 Process for producing rare earth metals |
| 01/28/1998 | CN2273313Y Lining structure for aluminium self-baking cell |
| 01/20/1998 | CA2131288C Prevention of oxidation of carbonaceous and other materials at high temperatures |
| 01/15/1998 | WO1998001234A1 Protection of aluminum production cell components |
| 01/07/1998 | EP0816534A1 An electrolytic magnesium production process using mixed chloride-fluoride electrolytes |
| 01/07/1998 | EP0815290A1 Butt and thimble press |
| 12/31/1997 | WO1997049479A1 Method of removing, from a stream of gas, fluorinated compounds which contribute to destruction of the ozone layer and/or changes in climate, and use of the method |
| 12/29/1997 | EP0814181A1 Process for regulating the alumina content of bath in cells for producing aluminium |
| 12/24/1997 | WO1997048838A1 Cathode construction |
| 12/24/1997 | CN1168423A Production method of LaCePrNd rare earth alloy |
| 12/17/1997 | CN2270736Y Pneumatic-hydraulic pin puller |
| 12/11/1997 | WO1997047015A1 Accelerator-driven transmutation of spent fuel elements |
| 12/03/1997 | EP0362253B1 Process for treating liquid metals |
| 12/03/1997 | CN2269402Y Flue ash, waste materials and adsorptive pitch aluminium oxide boiling baking device for aluminium electrolysis |
| 12/03/1997 | CN1166791A Method for separating substances from a gaseous medium by dry adsorption |
| 12/02/1997 | US5693211 Top of anode casing equipped with cover having off-gas opening for cooling anode |
| 11/19/1997 | EP0807093A1 Coating composition for a carbonaceous material, and resulting coating |
| 11/19/1997 | CN1165206A Method of producing magnesium from raw material containing sulfates |
| 11/04/1997 | US5683663 Decomposition of cyanide in electrolytic cell lining |
| 11/04/1997 | US5683559 Cell for aluminium electrowinning employing a cathode cell bottom made of carbon blocks which have parallel channels therein |
| 10/22/1997 | EP0771396A4 Actuator |
| 10/22/1997 | EP0690831B1 Carbon-based bodies in particular for use in aluminium production cells |
| 10/22/1997 | EP0690830B1 Production of carbon-based composite materials as components of aluminium production cells |
| 10/21/1997 | US5679224 Treated carbon or carbon-based cathodic components of aluminum production cells |
| 10/19/1997 | CA2200287A1 Method for producing electrolytic-pot-cell grade alumina from aluminum sulphate |
| 10/15/1997 | CN1162026A Metal-type casted anode steel-claw body and casting mould |
| 10/15/1997 | CN1162021A Aluminium-sodium composite lithium salt and application thereof |
| 10/14/1997 | US5676807 Compact mixture of particulate carbonaceous material with non-carbonaceous non-polluting colloidal binder, optional filler |
| 10/14/1997 | US5676761 System and method for rough cleaning an anode assembly |
| 10/14/1997 | CA2070977C Refractory material for electrolytic cells, method for the manufacture and use of the refractory material |
| 09/24/1997 | EP0705233A4 Binder systems |
| 09/17/1997 | EP0759099A4 Cathode connection for aluminium smelter pot |
| 09/16/1997 | US5667664 Ledge-free aluminum smelting cell |
| 09/16/1997 | US5667648 Having flexible heat resistant seal |
| 09/10/1997 | EP0793527A1 Method for separating substances from a gaseous medium by dry adsorption |
| 09/10/1997 | CN1158914A Method for manufacturing aluminum from aluminum hydroxides containing silicic acid, titanic acid and iron |
| 09/09/1997 | US5665220 Electrolytic magnesium production process |
| 09/09/1997 | US5665213 Continuous prebaked anode cell |
| 09/03/1997 | CN1158600A Cryolite resistant refractory material |
| 08/26/1997 | US5660710 Method and apparatus for electrolyzing light metals |
| 08/26/1997 | CA2044731C Method for extraction of valuable minerals and precious metals from oil sands ore bodies and other related ore bodies |
| 08/20/1997 | CN1157330A Aluminum electrolytic flue dust, dirty material, adsorbent asphalt aluminum oxide boiling roasting device |
| 08/19/1997 | US5658447 Electrolysis cell and method for metal production |
| 08/13/1997 | CN1156761A Recovering method for compound containing rare-earth elements can be reused |
| 08/07/1997 | WO1997028295A1 Method and apparatus for electrolysing light metals |
| 08/06/1997 | EP0787833A1 Conductor arrangement for electrolytic cells |
| 08/06/1997 | EP0688369B1 The bonding of bodies of refractory hard materials to carbonaceous supports |
| 07/31/1997 | WO1997027143A1 Production of high purity silicon metal, aluminium, their alloys, silicon carbide and aluminium oxide from alkali alkaline earth alumino silicates |
| 07/30/1997 | EP0786020A1 Treated carbon or carbon-based cathodic components of aluminium production cells |
| 07/30/1997 | EP0688368B1 Treated carbon cathodes for aluminium production |
| 07/29/1997 | US5651874 Method for production of aluminum utilizing protected carbon-containing components |
| 07/26/1997 | CA2194832A1 Busbar arrangement for electrolytic cells |
| 07/24/1997 | WO1997026227A1 A method and apparatus for applying a treating liquid to a porous body |
| 07/24/1997 | WO1997026226A1 Protection of porous bodies against oxidation |
| 07/17/1997 | WO1997025294A1 Carbon bodies resistant to deterioration by oxidizing gases |
| 07/17/1997 | DE19601200A1 Method of producing aluminium (alloys) electrolytically |
| 07/17/1997 | CA2242388A1 Carbon bodies resistant to deterioration by oxidizing gases |
| 07/16/1997 | EP0783597A1 Stable anodes for aluminium production cells |
| 07/16/1997 | EP0783468A1 Cryolite resistant refractory |
| 07/09/1997 | EP0782636A1 Aluminium electrowinning cell with improved carbon cathode blocks |
| 06/26/1997 | WO1997022735A1 A method for the use of material containing carbon in the electrolytic production of aluminium |
| 06/26/1997 | CA2240317A1 A method for the use of material containing carbon in the electrolytic production of aluminium |
| 06/11/1997 | EP0777765A1 Aluminium-immersed assembly for aluminium production cells |
| 06/11/1997 | CN1151450A Method of making industrial aluminium electrolytic tank chemical guard by using magnesium oxide and calcium oxide materials |
| 05/28/1997 | EP0569407B1 Composite electrode for electrochemical processing and method for preparation by combustion synthesis without a die |
| 05/14/1997 | CN1149893A Method for production of silicium metal, silumin and aluminium metal |
| 05/07/1997 | EP0771396A1 Actuator |
| 05/01/1997 | WO1997015701A1 Process for producing rare earth metals |
| 04/16/1997 | CN1147568A Prepn of lanthanum-rich rare-earth metal |
| 04/10/1997 | WO1997013008A1 Device for feeding raw material into aluminium electrolysis baths |
| 04/09/1997 | CN1147028A Expansion cathode paste |
| 04/08/1997 | US5618403 Electrolytic cell having carbon cathode with aluminum resistant, aluminum wettable surface layer including refractory hard metal boride particles and non-organic binder forming porous layer containing cathodic molten aluminum |
| 04/02/1997 | CN1146757A Preparation of anhydrous magnesium chloride-containing melts from hydrated magnesium chloride and production of magnesium metal |