| Patents for C25C 3 - Electrolytic production, recovery or refining of metals by electrolysis of melts (10,924) |
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| 11/09/1994 | CN1026504C Inertial anode for producing Nd by molten salt electrolysis and preparing process thereof |
| 11/08/1994 | US5362366 Anode-cathode arrangement for aluminum production cells |
| 11/01/1994 | US5360297 Apparatus for automatic level control in a closed channel or container for transport and/or distribution of fluidizable material |
| 11/01/1994 | CA2029750C Apparatus for holding and refining of molten aluminum |
| 10/27/1994 | WO1994024337A1 Treated carbon or carbon-based cathodic components of aluminium production cells |
| 10/27/1994 | WO1994024321A1 Micropyretically-produced components of aluminium production cells |
| 10/27/1994 | WO1994024069A1 Conditioning of cell components for aluminium production |
| 10/27/1994 | WO1994020651A3 The bonding of bodies of refractory hard materials to carbonaceous supports |
| 10/27/1994 | WO1994020650A3 Treated carbon cathodes for aluminium production |
| 10/26/1994 | CN1026342C Granule anodllyte and its production |
| 10/13/1994 | WO1994023073A1 Method for collecting valuable metal from nickel-hydrogen secondary cell |
| 10/11/1994 | CA1332375C Electrolysis furnace |
| 10/11/1994 | CA1332370C Method of producing a high purity aluminum-lithium mother alloy |
| 10/05/1994 | EP0618313A2 Automatized equipment for the replacement of the anodes in the electrolytic cells for aluminium production |
| 10/04/1994 | US5352338 Cathode protection |
| 09/29/1994 | WO1994021573A1 Carbon-based bodies in particular for use in aluminium production cells |
| 09/29/1994 | WO1994021572A1 Production of carbon-based composite materials as components of aluminium production cells |
| 09/28/1994 | EP0617145A1 Device for the protection of anode hanger nipples |
| 09/28/1994 | CN1092822A Composite for oxidation and corrosion protection of anode nipples |
| 09/21/1994 | EP0615786A1 Separator for the separation of fluidisable from non fluidisable materials |
| 09/20/1994 | US5348626 Sodium or cerium alloy |
| 09/18/1994 | CA2119100A1 Device for the protection of anode hanger nipples |
| 09/18/1994 | CA2119084A1 Composite for oxidation and corrosion protection of anode nipples |
| 09/15/1994 | WO1994020651A2 The bonding of bodies of refractory hard materials to carbonaceous supports |
| 09/15/1994 | WO1994020650A2 Treated carbon cathodes for aluminium production |
| 09/15/1994 | CA2155204A1 Treated carbon cathodes for aluminium production |
| 09/15/1994 | CA2155203A1 The bonding of bodies of refractory hard materials to carbonaceous supports |
| 09/13/1994 | US5346608 Using magnetite as cathode and a protective gas |
| 09/07/1994 | EP0613504A1 Cell for the electrolysis of alumina preferably at law temperatures. |
| 08/31/1994 | EP0612863A1 Reducing agent regeneration system and method |
| 08/30/1994 | US5342491 Bonding of bodies of refractory hard materials to carbonaceous supports |
| 08/26/1994 | CA2114683A1 Automatized equipment for the replacement of the anodes in the electrolytic cells for aluminium production |
| 08/24/1994 | EP0611837A1 Method for obtaining aluminium from alumina-containing raw material |
| 08/24/1994 | CN2175237Y Sealing device for up parts of electrolytic bath of aluminium |
| 08/23/1994 | US5340448 Aluminum electrolytic cell method with application of refractory protective coatings on cello components |
| 08/17/1994 | EP0610373A1 Continuous prebaked anode cell |
| 08/09/1994 | US5336378 Method and apparatus for producing a high-purity titanium |
| 08/04/1994 | DE4329732C1 Aluminium@ refining |
| 07/26/1994 | US5332540 Refractory oxycompound/refractory hard metal composite |
| 07/19/1994 | US5330631 Aluminium smelting cell |
| 07/19/1994 | CA1330772C Process and apparatus for producing high-purity lithium metal by fused-salt electrolysis |
| 07/06/1994 | EP0605037A2 Pulse-controlled metering device |
| 07/06/1994 | EP0604664A1 Method for obtaining aluminium and other metals |
| 07/01/1994 | CA2091118A1 Hoist apparatus for positioning anode in smelting furnace |
| 06/29/1994 | CN2170309Y Self-baking anode side-inserted Al electrolytic cell with waste gas separation purifier |
| 06/29/1994 | CN1025228C Preparing process for neodymium and Nd-Pr heavy rare-earth alloy |
| 06/29/1994 | CN1025227C Salt-smelting electrolysis method for making Pb Ca Sr alloy |
| 06/28/1994 | US5324408 Apparatus for controlled supply of alumina |
| 06/28/1994 | US5324394 Recovery of Li from alloys of Al- Li and Li- Al using engineered scavenger compounds |
| 06/23/1994 | WO1994013861A1 Electrolysis cell for metal production |
| 06/21/1994 | US5322826 Bricks of alumina and titania, porous and resistant to fluorine-containing gses |
| 06/21/1994 | CA1330320C Collars for the protection of anode hangers in aluminium electrolysis cells |
| 06/14/1994 | US5320717 Bonding of bodies of refractory hard materials to carbonaceous supports |
| 06/09/1994 | WO1994012694A1 Casing for a self-baking anode for electrolytic cells for production of aluminium |
| 06/09/1994 | WO1994012693A1 Structural parts for electrolytic reduction cells for aluminium |
| 05/31/1994 | US5316718 Composite electrode for electrochemical processing having improved high temperature properties and method for preparation by combustion synthesis |
| 05/25/1994 | CN2166139Y Crust-breaking & baiting integral apparatus |
| 05/25/1994 | CN1087136A Electrolytic process for making alloys of rare earth and other metals |
| 05/24/1994 | US5314599 Calcium oxide layer |
| 05/24/1994 | CA1329789C Process for the regulation of the acidity of an electrolytic bath by recycling the products emitted by hall-herault cells |
| 05/18/1994 | CN1086855A Middle feeding and exhausting method for self baking anode Al refining electrolytic bath |
| 05/11/1994 | CN2164419Y Cathode furnace chamber structure for aluminium electrolysis trough |
| 05/10/1994 | US5310476 Application of refractory protective coatings, particularly on the surface of electrolytic cell components |
| 05/10/1994 | CA1329380C Cerium oxycompound, stable anode for molten salt electrowinning and method of production |
| 05/03/1994 | USRE34598 Integrated circuit |
| 05/03/1994 | CA2058381C Device for fluidized bed material separation and plugging detection |
| 04/20/1994 | CN1085608A Alumina supply apparatus for electrolytic smelter |
| 04/19/1994 | US5304297 Electrolytic cells |
| 04/06/1994 | CN2160665Y Iron cathode apparatus for electrolyzing rare-earth molten salt |
| 04/05/1994 | US5299745 Process for the preparation of a dry aggregate for the production of electrodes |
| 04/05/1994 | US5299694 Apparatus and process for separating a material in fluidized bed form and the detection of clogging |
| 04/05/1994 | CA1328284C Shaped refractory metal boride articles and method of making them |
| 04/05/1994 | CA1328243C Molten salt electrolysis with non-consumable anode |
| 03/22/1994 | US5296274 Disposing transition metal on surface of graphite, directing electron beam to melt transition metal and evaporate graphite, condensing on support |
| 03/16/1994 | CN1083873A Method of extracting pure aluminum from aluminum chloride |
| 03/15/1994 | US5294318 Crustbreaking assembly for aluminum electrolysis cells |
| 03/15/1994 | US5294306 Electrolytic removal of magnesium from molten aluminum |
| 02/24/1994 | DE4227263A1 Cleaning of anode stubs in rotary drum - esp. to recover stubs and deposit material for reuse in electrolytic aluminium@ prodn. |
| 02/23/1994 | EP0584024A1 Superstructure for high intensity electrolytic vat used in the production of aluminium |
| 02/22/1994 | US5288383 Method and apparatus for adjusting the distance between the poles of electrolysis cells |
| 02/19/1994 | CA2074622A1 Antimony-lithium electrode |
| 02/17/1994 | WO1994003653A1 Method for obtaining aluminium from alumina-containing raw material |
| 02/17/1994 | CA2122364A1 Method of producing aluminum from aluminous raw material |
| 02/15/1994 | US5286359 Alumina reduction cell |
| 02/15/1994 | US5286353 Anode blocks are connected using compressed granulate packing; sloped or curved upper cathode surfaces allow aluminum to drain into basin |
| 02/08/1994 | US5284562 Non-consumable anode and lining for aluminum electrolytic reduction cell |
| 02/08/1994 | CA1326839C Electrorefining process and apparatus for recovery of uranium and a mixture of uranium and plutonium from spent fuels |
| 02/03/1994 | WO1994002859A1 Method and device for monitoring anode current in electrolytic cells for production of aluminium |
| 02/03/1994 | WO1994002664A1 Barrier layer against fluoride diffusion in linings of aluminum reduction cells and like apparatus |
| 02/03/1994 | WO1994002263A1 Treatment of solid material |
| 02/01/1994 | US5282937 Electrolyte containing molten salt comprising reductant, reductant oxide, sodium chloride and metal oxide; electrodes selective for oxygen and sodium ions; applying voltage |
| 01/25/1994 | CA1326469C Molten salt electrowinning electrode, method and cell |
| 01/20/1994 | WO1994001601A1 Alumina supply apparatus for electrolytic smelter |
| 01/20/1994 | CA2126181A1 Alumina supply apparatus for electrolytic smelter |
| 01/18/1994 | US5279716 Method for producing magnesium metal from magnesium oxide |
| 01/18/1994 | US5279715 Process and apparatus for low temperature electrolysis of oxides |
| 01/06/1994 | WO1994000621A1 Method for obtaining aluminium and other metals |
| 01/06/1994 | CA2118927A1 A method of producing aluminium and other metals |
| 01/05/1994 | CN1023413C Busbar arrangement for large, transversally disposed electrolysis cells |
| 12/23/1993 | WO1993025731A1 The application of refractory borides to protect carbon-containing components of aluminium production cells |