| Patents for C25C 3 - Electrolytic production, recovery or refining of metals by electrolysis of melts (10,924) |
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| 07/28/1987 | US4683037 Dimensionally stable anode for molten salt electrowinning and method of electrolysis |
| 07/28/1987 | CA1224746A1 Cell for the refining of aluminum |
| 07/28/1987 | CA1224743A1 Metal production by electrolysis of a molten electrolyte |
| 07/22/1987 | EP0229516A1 Process and use of an apparatus for producing dysprosium-iron alloy and neodymium-dysprosium-iron alloy |
| 07/21/1987 | US4681671 Melts, dluorides, nonconsumable electrodes, current density, circulation, active surfaces |
| 07/21/1987 | CA1224438A1 Support member and electrolytic method |
| 07/16/1987 | WO1987004193A1 Process for producing transition metal powders by electrolysis in baths of molten salts |
| 07/15/1987 | EP0228443A1 Cell arrangement for electrometallurgical purposes, in particular aluminun electrolysis. |
| 07/14/1987 | US4680094 Method for producing aluminum, aluminum production cell and anode for aluminum electrolysis |
| 07/07/1987 | US4678760 Method of forming a substantially interwoven matrix containing a refractory hard metal and a metal compound |
| 07/07/1987 | US4678548 Corrosion-resistant support apparatus and method of use for inert electrodes |
| 06/30/1987 | US4676960 Process for concentrating waste products arising during the manufacture of carbon electrodes |
| 06/30/1987 | CA1223550A1 Alumina reduction cell |
| 06/23/1987 | US4675084 Current density |
| 06/23/1987 | US4675081 Controlling aluminium reduction cell operation |
| 06/16/1987 | US4673481 Production of aluminum by fused electrolysis, thermal insulation |
| 06/16/1987 | US4673478 Alumina reduction cell |
| 06/09/1987 | CA1222667A1 Refractory lining material for electrolytic reduction cell for aluminium production and method of making the same |
| 06/02/1987 | US4670121 Plant for the electrolytic production of reactive metals in molten salt baths |
| 06/02/1987 | US4670110 Process for the electrolytic deposition of aluminum using a composite anode |
| 06/02/1987 | CA1222477A1 Diffusion barrier for aluminium electrolysis furnaces |
| 05/27/1987 | DE3541504A1 Device for aligning anode rods, and a monitoring device for monitoring the anode rod nipple |
| 05/26/1987 | USRE32426 Electrode for fused melt electrolysis |
| 05/26/1987 | US4668352 Process and apparatus for automatic increased suction extraction on electrolysis tanks for the production of aluminum |
| 05/26/1987 | US4668350 Aluminum fluoride reduction to aluminum |
| 05/26/1987 | US4667501 Apparatus for straightening electrode rods |
| 05/21/1987 | DE3540169A1 Process and installation for the preparation of granular raw materials for the manufacture of green carbon mouldings |
| 05/12/1987 | US4664760 Electrolytic cell and method of electrolysis using supported electrodes |
| 05/07/1987 | DE3538016A1 Cathode bottom for aluminium electrolytic cells |
| 05/06/1987 | EP0220557A1 Inert composite electrode, particularly an anode for molten salt electrolysis |
| 05/05/1987 | US4662938 Recovery of silver and gold |
| 04/30/1987 | DE3538294A1 Method for reducing the oxidation tendency existing at temperatures above 800 DEG C of anodes prepared from carbon powder for the production of aluminium by molten-salt electrolysis |
| 04/30/1987 | DE3538220A1 Collar packing composition |
| 04/30/1987 | DE3538151A1 Process and apparatus for the manufacture of artificial carbon articles |
| 04/29/1987 | EP0219877A1 Laminated carbon cathode for cells for the production of aluminium by electrolytic smelting |
| 04/28/1987 | CA1221055A1 Packed cathode bed for electrowinning metals from fused salts |
| 04/22/1987 | EP0219157A1 Process for the electrolytic production of metals |
| 04/21/1987 | US4659442 Method of reducing the loss of carbon from anodes when producing aluminum by electrolytic smelting, and an inert anode top for performing the method |
| 04/21/1987 | US4659263 Closed apparatus providing potential fluidization for horizontally conveying powder materials |
| 04/16/1987 | DE3536788A1 Mobile clearing machine |
| 04/15/1987 | EP0218329A1 Apparatus for controlling anode movement in aluminium reduction cells |
| 04/15/1987 | CN85107384A Method and apparatus for the continuous production of electrode material |
| 04/14/1987 | US4657643 Alkali metal and/or alkaline earth fluorides in a bath of molten chlorides |
| 04/14/1987 | CA1220433A1 Installation for injecting a powdery material, particularly an adsorbent material, into a contact column |
| 04/14/1987 | CA1220319A1 Refractory metal borides, carbides and nitrides and composites containing them |
| 04/08/1987 | EP0217438A1 Process and apparatus for manufacturing very pure lithium by molten salt electrolysis |
| 04/07/1987 | US4655827 Process for the reduction of fluorides of silicon, titanium, zirconium or uranium |
| 03/31/1987 | US4654133 Hall-Heroult electrolysis tank with asymmetrical cathodic bars and heat insulation |
| 03/31/1987 | US4654130 Method for improved alumina control in aluminum electrolytic cells employing point feeders |
| 03/31/1987 | US4654129 Process for accurately maintaining a low alumina content in an electrolytic smelting cell for the production of aluminum |
| 03/25/1987 | EP0215590A1 Linings for alumimium reduction cells |
| 03/25/1987 | EP0215555A1 Aluminium reduction cells |
| 03/24/1987 | US4652226 Apparatus for the continuous production of electrode material |
| 03/24/1987 | CA1219636A1 Data acquisition system for the computer control of aluminum smelters |
| 03/24/1987 | CA1219551A1 Apparatus and method for electrolysis and float |
| 03/17/1987 | US4650559 Carbon electrode for reducing dusting and gasification in an electrolytic cell |
| 03/17/1987 | US4650552 Electrolytic production of aluminum |
| 03/10/1987 | CA1218958A1 Molten salt electrolysis cell having a cathode sheath to retain liquid aluminum |
| 03/04/1987 | EP0212711A2 Process for the reduction of fluorides of silicon, titanium, zirconium or uranium |
| 03/04/1987 | EP0211924A1 Method of controlling the alumina feed into reduction cells for producing aluminium. |
| 03/03/1987 | US4647405 Ceramics, group 4 metal diboride, agglomeration, dispersion, electroconductivity |
| 03/03/1987 | US4647357 Sodium compound, alumina, penetration, electrolytes, dissolving, reacting |
| 03/03/1987 | US4647356 Cathode rod comprising a metal sole, for hall-heroult electrolysis cells |
| 03/03/1987 | US4647355 Apparatus for molten salt electrolysis |
| 02/24/1987 | US4645582 Minimization of voltage drop |
| 02/04/1987 | EP0210961A1 Plant for the electrolytic production of reactive metals in molten salt baths |
| 02/03/1987 | US4640751 Reacting mercury and mercuric chloride to form mercurous chloride, oxidizing mercurous chloride with chlorine to form mercuric chloride, electrolyzing to form metallic mercury and chlorine |
| 02/03/1987 | CA1217454A1 Apparatus and method for electrolysis and inclined electrodes |
| 01/28/1987 | EP0210111A1 Superstructure with intermediate portal for an electrolysis vat used in the production of aluminium |
| 01/28/1987 | CN86103590A Aluminium electrolytic tank up structure with a crossbeam |
| 01/27/1987 | US4639304 Apparatus for determination of aluminum oxide content of the cryolite melt in aluminum electrolysis cells |
| 01/27/1987 | CA1217208A1 Reaction sintered multiphase ceramic |
| 01/24/1987 | CN86101854A Anode paste in aluminium electrolysis |
| 01/20/1987 | US4638441 Data acquisition system for the computer control of aluminum smelters |
| 01/20/1987 | CA1216705A1 Electrode coating and coated electrodes |
| 01/15/1987 | WO1987000211A1 Cell arrangement for electrometallurgical purposes, in particular aluminun electrolysis |
| 01/10/1987 | CN85101168A Process for producing tin from lean tin oxides or raw oxides-suephides/concentrates |
| 01/07/1987 | CN86103689A Connection apparatus between aluminium electrolytic tank containing power supply circuit and magnetic field revision circuit |
| 01/06/1987 | CA1216254A1 Electrolytic reduction cells for aluminium production |
| 12/30/1986 | US4631986 Stud removing and transfer adaption mode |
| 12/30/1986 | EP0206555A1 Apparatus for feeding particulate material |
| 12/30/1986 | EP0205687A1 Aluminium reduction cells |
| 12/30/1986 | EP0102361B1 Diffusion barrier for alluminium electrolysis furnaces |
| 12/30/1986 | CA1216008A1 Treatment of scrap lining material from aluminium reduction cells |
| 12/30/1986 | CA1215941A1 Cathode pot of an aluminum reduction cell |
| 12/30/1986 | CA1215940A1 Conductor bar assembly for electrolytic cells |
| 12/30/1986 | CA1215935A1 Method of producing metals by cathodic dissolution of their compounds in electrolytic cells |
| 12/23/1986 | US4631121 Alumina reduction cell |
| 12/10/1986 | EP0204647A1 Connection device between very high intensity electrolytic pots for aluminium production, comprising a current supply circuit and an independent circuit for correcting the magnetic field |
| 12/10/1986 | EP0204390A1 Dispersing particulate material in a stream of gas |
| 12/10/1986 | CN85104565A Combined cathod blocks and cathod with a low voltage drop used for hall-heroult electrolyzer |
| 12/09/1986 | US4627898 Electrolytic production of praseodymium |
| 12/03/1986 | EP0203884A1 Dimensionally stable anode for molten salt electrowinning and method of electrolysis |
| 12/02/1986 | US4626333 Lowr electrical resistance cermet connector joined to cermet or ceramic anode |
| 12/02/1986 | CA1214752A1 Cathode bar with metallic footing for hall-heroult type electrolytic cells |
| 11/26/1986 | CN85104086A Anodic carbon rod of partially reduced size in aluminium electrolytic bath |
| 11/25/1986 | US4624766 Borides and carbides in a carbon matrix |
| 11/18/1986 | US4623555 Connection method |
| 11/12/1986 | EP0201438A1 Process for accurately regulating the low alumina content of an igneous electrolysis cell for aluminium production |
| 11/12/1986 | CA1213849A Method and device for treating and refining liquid metal alloys by direct current electric arc heating |