| Patents for C25C 3 - Electrolytic production, recovery or refining of metals by electrolysis of melts (10,924) |
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| 06/10/2004 | US20040108218 Process for preparing silicon and optionally aluminum and silumin (aluminum-silicon alloy) |
| 06/10/2004 | CA2775096A1 Inert anode assembly |
| 06/09/2004 | EP1425439A1 Method of manufacturing titanium and titanium alloy products |
| 06/09/2004 | EP1261758A4 An electrolytic reduction cell and collector bar |
| 06/03/2004 | WO2003006716A3 Alloy-based anode structures for aluminium production |
| 06/03/2004 | US20040104125 Intermetallic compounds |
| 06/02/2004 | EP1423556A2 Aluminium electrowinning cells with sloping foraminate oxygen-evolving anodes |
| 06/02/2004 | EP1423555A2 Aluminium electrowinning cells with inclined cathodes |
| 06/02/2004 | CN1501988A Material for a dimensionally stable anode for the electrowinning of aluminum |
| 06/01/2004 | CA2381355C Anode assembly |
| 05/27/2004 | WO2004044268A2 The production of hematite-containing material |
| 05/26/2004 | CN2617781Y Cathode square steel press connecting apparatus for large prebaked anode aluminium electrolytic tanks |
| 05/26/2004 | CN1500156A Extraction of metals |
| 05/25/2004 | US6740436 Hydrogen/oxygen generating system with temperature control |
| 05/21/2004 | WO2004042651A1 Set of microcircuit cards precut in a common plastic support and comprising complementary functions |
| 05/21/2004 | WO2003018876B1 Method for protecting electrodes during electrolysis cell start-up |
| 05/20/2004 | US20040094429 Material for a dimensionally stable anode for the electrowinning of aluminum |
| 05/20/2004 | US20040094428 Process for preparing silicon by electrolysis and crystallization and preparing low-alloyed and high-alloyed aluminum silicon alloys |
| 05/20/2004 | US20040094409 Inert anode assembly |
| 05/19/2004 | EP1151150B1 Graphite cathode for electrolysis of aluminium |
| 05/19/2004 | CN2616548Y Dust-removing purification recovery apparatus for electrolytic tank |
| 05/19/2004 | CN1498287A Inert electrode material in nanocrystalline powder form |
| 05/13/2004 | US20040089852 Electrolytic production of aluminum are disclosed. The inert anodes comprise an oxide of Ni and Fe having a controlled Ni/(Ni+Fe) mole ratio which results in a single-phase structure at the operation temperatures of aluminum |
| 05/13/2004 | US20040089558 Electrolytic production of pure aluminum |
| 05/13/2004 | US20040089539 Start-up of aluminium electrowinning cells |
| 05/12/2004 | CN2615149Y Cathode steel bar and bus connector of aluminium cell |
| 05/12/2004 | CN2615148Y Aluminium electrolytic cell crimp connector between cathode steel bar and cathode soft strip |
| 05/12/2004 | CN1495295A Method for removing fluorinl and removing dust from waste gas produced by fused salt electrolysis of rare earth metal in fluorination system |
| 05/06/2004 | WO2004038069A1 Process for controlling anode effects during the production of aluminum |
| 05/06/2004 | US20040084324 Drained cathode surface divided into quadrants by longitudinal aluminum collection groove along cell and central reservoir; alumina electrolysis |
| 05/06/2004 | US20040084323 Electrolysis of halide salt of calcium, barium, lithium, sodium, potassium, magnesium, strontium, cesium, and/or yttrium; alloying, chemical reduction, denitrification, desulfurization; heat and chemical resistance |
| 05/06/2004 | EP1416067A2 Aluminium electrowinning cells with oxygen-evolving anodes |
| 05/06/2004 | EP1415020A2 Aluminium production cells with iron-based metal alloy anodes |
| 05/05/2004 | CN1494605A Process for preparing silicon carbide and optionally aluminum and silumin (Aluminum-silicon alloy ) |
| 05/04/2004 | US6730210 Electrolyzing alkali metal halide in presence of co-electrolyte which is a nitrogen-containing compound and group ib halides, group iiia halides, group viii halides and water to produce alkali metal |
| 04/29/2004 | WO2004035873A1 Minimising carbon transfer in an electrolytic cell |
| 04/29/2004 | WO2004035872A1 Electrolytic cell leak limiter |
| 04/29/2004 | WO2004035871A1 Aluminium electrowinning cells with metal-based anodes |
| 04/29/2004 | WO2004035870A1 Anode current feeding connection stem |
| 04/29/2004 | WO2004035869A1 A method for operating one or more electrolysiscells for production of aluminium |
| 04/29/2004 | US20040079649 Process for controlling anode effects during the production of aluminium |
| 04/29/2004 | CA2502660A1 A method for operating one or more electrolysiscells for production of aluminium |
| 04/28/2004 | EP1412558A1 Electrolytic reduction of metal oxides |
| 04/28/2004 | CN1492951A Electrorefining process for separating metals |
| 04/28/2004 | CN1492950A Method for regulating electrolytic cell |
| 04/28/2004 | CN1492949A Method and electrowinning cell for production of metal |
| 04/28/2004 | CN1491759A Process of colouring, binding and casting steel-shell aluminium-core anode claw for electrolyzing aluminium |
| 04/28/2004 | CN1147624C Prepn. of mixed rare-earth metals by direct electrolysis of fluoro-carbon-cerium ore concentrate and its produced product |
| 04/28/2004 | CN1147605C La-Pr-Ce-Al alloy and its production process |
| 04/28/2004 | CN1147564C Process for producing anode asphalt for refining aluminium |
| 04/27/2004 | US6726020 Method and device for a dry cleansing plant for aluminum reduction furnaces exhaust gas |
| 04/27/2004 | CA2354007C Multi-layer cathode structures |
| 04/22/2004 | WO2004033761A2 Point feeder and use of point feeder |
| 04/22/2004 | WO2004033760A2 Electrochemical reduction of metal oxides |
| 04/22/2004 | WO2004027119A3 Method for pre-heating a stack for aluminium electrolysis production |
| 04/21/2004 | EP1409770A1 Reduction of metal oxides in an electrolytic cell |
| 04/21/2004 | EP1159469B1 Impregnated graphite cathode for electrolysis of aluminium |
| 04/21/2004 | CN1146728C Immersion sensor, set-up of measuring instruments and measuring method for monitoring aluminium electrolysis cell |
| 04/21/2004 | CN1146676C Prepn. of yttrium-rice RE-Al intermediate alloy |
| 04/20/2004 | US6723222 Producing aluminum in low temperature electrolytic cell using electrode having molten electrolyte salt resistance |
| 04/20/2004 | US6723221 Insulation assemblies for metal production cells |
| 04/20/2004 | US6723212 Impregnated graphite cathode for the electrolysis of aluminium |
| 04/20/2004 | CA2118943C Treatment of solid material |
| 04/15/2004 | WO2004031452A1 Collector bar providing discontinuous electrical connection to cathode block |
| 04/15/2004 | WO2004031451A1 Cathode block for aluminum refining and method for production thereof |
| 04/15/2004 | DE10300445B3 Process for vacuum forming a green body made from a carbon material comprises pouring the carbon material into an open mold on one side and subjecting to a negative pressure from this side and in a region of the closed side |
| 04/13/2004 | US6719890 Cathode for a hall-heroult type electrolytic cell for producing aluminum |
| 04/13/2004 | US6719889 Cathode for aluminum producing electrolytic cell |
| 04/08/2004 | WO2004029332A2 Purification of electrochemically deoxidised refractory metal particles by heat processing |
| 04/08/2004 | WO2004029309A1 Improved process for removing oxygen from metal oxides by electrolysis in a fused salt |
| 04/08/2004 | WO2004007807A3 Aluminium production installation employing fused-salt electrolysis |
| 04/08/2004 | WO2004007806A3 Method and system for cooling an electrolytic cell for aluminium production |
| 04/08/2004 | DE19525797B4 Vorrichtung zum Ablösen von Gußhülsen von Anodenstangen A device for detaching the cast iron thimbles from the anode rods |
| 04/07/2004 | EP1404898A1 Electrolytic cell with powder feed device |
| 04/07/2004 | CN1487121A Al-F-Cl electrolyte system |
| 04/07/2004 | CN1144900C Method for controlling ALF3 content in cryolite melts |
| 04/06/2004 | CA2258815C A collector bar for the production of molten metal by electrolysis |
| 04/01/2004 | WO2004027119A2 Method for pre-heating a stack for aluminium electrolysis production |
| 04/01/2004 | WO2003057945A3 Stabilisation of molten metal/molten electrolyte systems |
| 04/01/2004 | US20040060826 Process for removing oxygen from metal oxides by electrolysis in a fused salt |
| 03/31/2004 | EP1402086A1 Electrolyte and method for manufacturing and/or refining of silicon |
| 03/31/2004 | EP1149187B1 Aluminium electrowinning cells with oxygen-evolving anodes |
| 03/31/2004 | CN1485465A Method for producing semi-graphite prebaked anode |
| 03/31/2004 | CN1485464A Process for producing cathode carbon block for aluminum cell |
| 03/30/2004 | US6712952 Placing anode and electrode comprising solid compound in contact with fused salt electrolyte, applying voltage so potential is lower than deposition potential for salt cation at electrode surface and substance dissolves in electrolyte |
| 03/25/2004 | WO2004025751A2 Non-carbon anodes for aluminium electrowinning and other oxidation resistant components with iron oxide-containing coatings |
| 03/25/2004 | WO2004024995A1 Porous sintered compact of titanium oxide for production of metallic titanium through direct electrolytic process and process for producing the same |
| 03/25/2004 | WO2004024994A1 Protection of non-carbon anodes and other oxidation resistant components with iron oxide-containing coatings |
| 03/25/2004 | WO2003070572A3 Method of dosing and dispensing a powder agent |
| 03/25/2004 | US20040055878 Anode for the electrolysis of aluminium |
| 03/25/2004 | CA2498563A1 Porous sintered compact of titanium oxide for production of metallic titanium through direct electrolytic process and process for producing the same |
| 03/25/2004 | CA2496497A1 Protection of non-carbon anodes and other oxidation resistant components with iron oxide-containing coatings |
| 03/24/2004 | EP1399690A1 A process and a device for transport of gas |
| 03/24/2004 | CN1484613A Refractory hard metals in powder form for use in the manufacture of electrodes |
| 03/18/2004 | US20040052713 Refractory hard metals in powder form for use in the manufacture of electrodes |
| 03/18/2004 | US20040050714 Devices to conduct current to or from the electrodes in electrolysis cells, methods for preparation thereof, and an electrolysis cell and a method for production of aluminium by electrolysis of alumina solved in a melted electrolyte |
| 03/17/2004 | CN1482281A Cermet inert anode material of cupelrous oxide group for electrolyzing aluminium |
| 03/11/2004 | WO2004020702A1 Electrochemical reduction of beryllium oxide in an electrolytic cell |
| 03/11/2004 | US20040045835 Three-electrode metal oxide reduction cell |
| 03/11/2004 | US20040045402 Powder form comprising particles having an average particle size of 0. 11 to 100 mu m and each formed of an agglomerate of grains of a ceramic material and grains of a metal or alloy with each grain of ceramic material comprising a nanocrystal |