| Patents for C25C 3 - Electrolytic production, recovery or refining of metals by electrolysis of melts (10,924) |
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| 06/06/1990 | CN1042737A Molten salt eleclrolysis with non-consumable anode |
| 05/30/1990 | EP0370075A1 Electrolytic cell and process |
| 05/29/1990 | US4929328 Electrolytic production of aluminum |
| 05/23/1990 | EP0253841B1 Process for producing transition metal powders by electrolysis in baths of molten salts |
| 05/23/1990 | DE3838828A1 Carbon electrode with a gas-tight, thermally-stable protective bell |
| 05/14/1990 | EP0349601A4 Salt-based melting process. |
| 05/09/1990 | EP0367372A1 Manufacture of a soderberg electrode incorporating a high carbon-contributing phenolic sacrificial binder |
| 05/08/1990 | US4923579 Nickel electrodeposition |
| 05/08/1990 | US4923577 Electrochemical-metallothermic reduction of zirconium in molten salt solutions |
| 05/08/1990 | CA1268730A1 Purification of gases containing mercury and recovery of metallic mercury |
| 05/01/1990 | US4921584 Protective coating formed by alumina reduction to aluminum; corrosion resistance |
| 05/01/1990 | CA1268447A1 Electrolytic electrode comprising sintered interwoven network with dispersed non-reactive material |
| 05/01/1990 | CA1268446A1 Process for improving the purity of transition metals obtained through electrolysis of their halogens in molten salt baths |
| 05/01/1990 | CA1268324A1 Mobile apparatus for cleaning remnants of carbon blocks |
| 04/24/1990 | US4919782 Alumina reduction cell |
| 04/24/1990 | US4919771 Simultaneous stoichiometric reducing chlorination of alumina at anode and decomposition of aluminum chloride; materials handling |
| 04/24/1990 | US4919303 Method for feeding particulate material |
| 04/11/1990 | EP0362253A1 Process for treating liquid metals |
| 04/10/1990 | US4915874 Mixture of calcined anthracite or anthracite/ragphite, settabl settable liquid polymeric binder and curing agent |
| 03/28/1990 | CN1007360B Aluminium electrolytic tank up structure with crossbeam |
| 03/21/1990 | CN1040631A Process for preparation of master alloy of fe and nd by electrolysis of oxygen-containing salts in melted medium of oxides |
| 03/21/1990 | CN1040520A Technology for decarbonizing wet clarifying dregs of f-bearing smoke |
| 03/14/1990 | CN1040399A Process and equipment for prepn. of dysprosium-neodymium alloy |
| 02/28/1990 | CN1040065A Process for terminating anode effects during production of aluminum |
| 02/22/1990 | DE3827422A1 Jarring mechanism for the compaction of mouldings |
| 02/14/1990 | CN1039627A Anode slime for aluminium electrolysis and its preparing method |
| 02/08/1990 | WO1990001078A1 Apparatus and method for the electrolytic production of metals |
| 02/07/1990 | EP0353943A1 Process for terminating anode effects during the production of aluminum |
| 02/07/1990 | CN1039451A Compound additive of anode for aluminium electrolysis |
| 01/30/1990 | US4897170 High melting novolak resin |
| 01/23/1990 | CA1264523A1 Process for purifying the gases emitted from the electrolysis pots for the production of aluminum and related equipment |
| 01/17/1990 | CN1038846A Arrangement of busbars on large, transversally disposed electrolysis cells |
| 01/10/1990 | EP0349601A1 Salt-based melting process |
| 01/03/1990 | CN1006308B Process and apparatus of auto-reinforcing suction for alumininum electrolysing tanks |
| 01/03/1990 | CN1006307B Process for accurately maintaining a low alumina content in an electrolytic smelting cell for the production of aluminium |
| 01/02/1990 | US4891066 Highly pure titanium |
| 12/20/1989 | EP0346597A1 Hammer actuated by means of a hydraulic system, in particular suitable for use in dusty, corrosive, and similarly hostile environments |
| 12/19/1989 | CA1263948A1 Anode clamp |
| 12/13/1989 | EP0345959A1 Arrangement of busbars on large, transversely disposed electrolysis cells |
| 12/05/1989 | US4885073 Electrolytic cell for aluminum production |
| 11/21/1989 | US4882017 Method and apparatus for making light metal-alkali metal master alloy using alkali metal-containing scrap |
| 11/15/1989 | EP0342033A1 Arrangement for the compensation of damaging magnetic fields on transverely disposed electrolysis cells |
| 11/15/1989 | CN1037177A Industry aluminium electrolyzer to produce directly a intermediate alloy of aluminium-titanium-boron three elements |
| 11/14/1989 | US4880506 Electrolytic cells, nuclear fuels |
| 11/02/1989 | WO1989010437A1 A method for the electrolytic production of a polyvalent metal and equipment for carrying out the method |
| 11/02/1989 | WO1989010436A1 A method for providing a collar about an anode nipple, and a device for carrying out said method |
| 10/31/1989 | US4877507 Linings for aluminum reduction cells |
| 10/18/1989 | CN1005460B Fluidised-bed apparturs for continuous separating mixture of two kinds of solid |
| 10/11/1989 | CN2045742U Aluminium electrolytic tank structure with inertia electrode |
| 10/05/1989 | WO1989009296A1 Transporting a liquid past a barrier |
| 10/03/1989 | US4871438 Cermet anode compositions with high content alloy phase |
| 10/03/1989 | US4871437 Cermet anode with continuously dispersed alloy phase and process for making |
| 09/26/1989 | CA1261812A1 Process for concentrating waste products arising during the manufacture of carbon electrodes, and an appropriate absorbent for this purpose |
| 09/26/1989 | CA1261297A1 Electrolytic recovery process and system for obtaining titanium metal from its ore |
| 09/20/1989 | EP0332663A1 Electrolytic furnace |
| 09/20/1989 | EP0228443B1 Cell arrangement for electrometallurgical purposes, in particular aluminun electrolysis |
| 09/19/1989 | US4867851 Controlling fluorine content |
| 09/13/1989 | CN1035532A Electrolysis method for producing alsi alloy |
| 09/12/1989 | US4865701 To aluminum, halide electrolyte, cell |
| 08/23/1989 | EP0328996A1 Method and apparatus for cleaning of spent anodes |
| 08/15/1989 | US4857157 Process and apparatus for controlling solid electrolyte additions to electrolytic cells for aluminum production |
| 08/10/1989 | DE3802670A1 Process for manufacturing artificial-carbon bodies, especially carbon anodes for use in igneous electrolysis of aluminium |
| 08/09/1989 | CN1034590A Preparation of power-saving carbon anode for aluminum electroextration |
| 08/08/1989 | US4855031 Equipment for the mechanized replacement of the anodes in the electrolytic cells for aluminum production |
| 08/01/1989 | USH659 Process for electrolytically preparing uranium metal |
| 08/01/1989 | US4853094 Isolating from metal halide |
| 08/01/1989 | CA1257970A1 Process to manufacture silver chloride |
| 07/26/1989 | EP0324888A1 Method of producing a high purity aluminum-lithium mother alloy |
| 07/26/1989 | CN1004885B Connection apparatus between aluminium electrolytic tanks |
| 07/25/1989 | US4851089 Process for the electrolytic production of metals |
| 07/19/1989 | EP0324632A1 Collars for the protection of anode hangers in aluminium electrolysis cells |
| 07/19/1989 | EP0324631A1 Method for removing carbon anodes in aluminium electrolysis cells |
| 07/19/1989 | EP0324266A1 Method for setting electrodes in aluminium electrolysis cells |
| 07/19/1989 | CN1034027A Active carbon anode |
| 07/18/1989 | US4849072 Electrolytic process for recovering lithium from aluminum-lithium alloy scrap |
| 07/18/1989 | US4849060 Quaternary ammonium halide, alkali metal halide |
| 07/18/1989 | CA1257559A1 Molten salt electrowinning anode with coating of fluorine containing oxycompound of cerium |
| 07/13/1989 | WO1989006291A1 Salt-based melting process |
| 07/13/1989 | WO1989006289A1 Electrolytic cell and process |
| 07/11/1989 | US4846943 Manufacture of an alkali metal aluminum halide compound and alkali metal |
| 06/28/1989 | EP0322326A1 Protective coating for studs and emerging parts of prebaked anodes |
| 06/28/1989 | CN1033530A Low-resistance anti-oxidized self-baking anode for electrolyzing aluminium |
| 06/27/1989 | CA1256457A1 Production of reaction-sintered articles and reaction- sintered articles |
| 06/20/1989 | US4840718 Wedge shaped with mating holders |
| 06/20/1989 | CA1256232A1 Cell for the electrolytic production of aluminum |
| 06/14/1989 | CN1004497B Mfr. of al-li intermediate-alloy |
| 05/30/1989 | CA1254856A1 Refractory hard metal containing tiles for aluminum cell cathodes |
| 05/30/1989 | CA1254855A1 Low energy aluminum reduction cell with induced bath flow |
| 05/18/1989 | WO1989004385A1 Anode film formation and control |
| 05/18/1989 | WO1989004384A1 Cermet anode with continuously dispersed alloy phase and process for making |
| 05/18/1989 | WO1989004383A1 Cermet anode compositions with high content alloy phase |
| 05/18/1989 | DE3737678A1 Plant for the potting of anode bars in block anodes |
| 05/16/1989 | CA1254169A1 Adding constituent of non-consumable anode to electrolytic melt |
| 05/09/1989 | US4828658 Process for the preparation of mother alloys of iron and neodymium by electrolysis of oxygen-bearing salts in a medium of molten fluorides |
| 05/09/1989 | US4828435 Dispersing particulate material in a stream of gas |
| 05/09/1989 | CA1253674A1 Reaction bonded carbide, nitride, boride, silicide or sulfide bodies |
| 05/03/1989 | CN1032682A New steel cathode rod for aluminium electrolysis bath |
| 04/25/1989 | US4824543 Electrode design for increased current distribution |
| 04/25/1989 | US4824531 Electrolysis method and packed cathode bed for electrowinning metals from fused salts |
| 04/12/1989 | EP0172823B1 Manufacture of refractory hard metal containing plates for aluminum cell cathodes |