| Patents for C25C 3 - Electrolytic production, recovery or refining of metals by electrolysis of melts (10,924) |
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| 12/23/1993 | WO1993025494A1 Carbon masses in particular for use in aluminium production cells |
| 12/14/1993 | CA1325194C Process for the preparation of iron and neodymium alloys using oxygentated salt electrolysis in a melted fluoride medium |
| 12/07/1993 | US5268084 Antimony-lithium electrode |
| 12/07/1993 | US5268083 Aluminum electrolytic extraction cell |
| 11/18/1993 | EP0570308A1 Alloys of metals with high melting points, suitable for transformation into homogeneous and pure ingost, and preparation process of these alloys |
| 11/16/1993 | CA1324250C Refractory oxycompound/refractory hard metal composite |
| 11/11/1993 | WO1993022479A1 Anode-cathode arrangement for aluminum production cells |
| 11/03/1993 | CN1077998A Inert anode for molten-salt electrolysis producing neodymium |
| 11/02/1993 | US5258103 Process for producing terbium alloy or terbium metal |
| 10/27/1993 | EP0552152A4 Apparatus for controlled supply of alumina |
| 10/27/1993 | EP0550456A4 Improved aluminium smelting cell |
| 10/27/1993 | EP0544737A4 Ledge-free aluminium smelting cell |
| 10/19/1993 | US5254232 Apparatus for the electrolytic production of metals |
| 10/14/1993 | WO1993020027A1 Refractory protective coatings, particularly for electrolytic cell components |
| 10/14/1993 | WO1993020026A1 Prevention of oxidation of carbonaceous and other materials at high temperatures |
| 10/06/1993 | EP0414704B1 Transporting a liquid past a barrier |
| 10/05/1993 | CA1322649C Recovery of fluoride values from waste materials |
| 09/23/1993 | DE4208965A1 Assembling graphite electrode of electrolyser |
| 09/22/1993 | EP0560814A1 Electrode assemblies and multimonopolar cells for aluminium electrowinning. |
| 09/16/1993 | DE4208207A1 Installation for aligning anode bars relative to anode blocks in an alignment and casting station - includes two pairs of centering tongs provided with adjustable clamping surfaces |
| 09/14/1993 | US5245116 Process for the wet treatment of spent pot linings from hall-heroult electrolytic cells |
| 08/31/1993 | US5240569 Having increased lateral laminar or turbulent flow |
| 07/28/1993 | EP0552402A1 Refractory material for an electrolysis cell, process for the production and use thereof |
| 07/28/1993 | EP0552152A1 Apparatus for controlled supply of alumina |
| 07/22/1993 | WO1993014248A1 Trickle alumina feeder |
| 07/22/1993 | WO1993014247A1 Continuous alumina feeder |
| 07/22/1993 | CA2127699A1 Continuous alumina feeder |
| 07/14/1993 | EP0550456A1 Improved aluminium smelting cell. |
| 07/13/1993 | US5227045 Supersaturation coating of cathode substrate |
| 07/08/1993 | WO1993013247A1 Process for producing neodymium or alloy thereof |
| 07/06/1993 | US5225051 Electrowinning process with electrode compartment to avoid contamination of electrolyte |
| 06/30/1993 | EP0548498A1 Process for electrolysis of molten salts containing neodymium compounds |
| 06/09/1993 | EP0544737A1 Ledge-free aluminium smelting cell. |
| 06/09/1993 | CN1021120C Fabricating method for energy-saving composite carbon anode for aluminium electrolyzing |
| 06/08/1993 | US5217583 Composition for manufacturing net shaped electrodes by combustion synthesis |
| 06/08/1993 | CA1318882C2 Cell for in-fused salt electrolysis |
| 05/27/1993 | WO1993010281A1 Cell for the electrolysis of alumina preferably at law temperatures |
| 05/26/1993 | EP0543113A1 Antimony-lithium electrode |
| 05/13/1993 | WO1993009274A1 Continuous prebaked anode cell |
| 05/05/1993 | CN1020480C Arrangement of busbars on large, transversally disposed electrolysis cells |
| 04/27/1993 | CA1316793C Hammer actuated by means of a hydraulic system, in particular suitable for use in dusty, corrosive, and similarly hostile environments |
| 04/22/1993 | DE4134270A1 Loose material contg. carbon@ top layer uniform distribution and levelling appts. - comprises distribution element displaceable horizontally and/or vertically in frame above mould box of press or shaker, for electrode in aluminium@ industry |
| 04/20/1993 | US5203971 Composite cell bottom for aluminum electrowinning |
| 04/20/1993 | CA1316489C Suspension arrangement for anode bars in cells for electrolytic production of aluminium |
| 04/20/1993 | CA1316488C Cathode for magnesium production |
| 04/15/1993 | DE4133281A1 Appliance to spray anti-bonding agent to die plate - has collection vessel for agent, moving below die plate, with upward directed spray nozzles |
| 04/06/1993 | CA1315535C Method and apparatus for cleaning of spent anodes |
| 03/30/1993 | US5198081 Adsorption of lithium on a working electrode, desorption and applying a voltage |
| 03/30/1993 | US5198078 Procedure for electrolyte production of magnesium |
| 03/18/1993 | WO1993004851A1 Device for compacting bulk material |
| 03/18/1993 | WO1993004850A1 Device for producing moulded bodies by vibratory compaction |
| 03/16/1993 | US5194124 Molten salt electrolytic beneficiation of iron oxide-containing titaniferous ores to produce iron and high-grade TiO2 |
| 03/04/1993 | DE4128963A1 Fluorine-resistant alumino-silicate refractory material - contains lime component for protective layer formation, used for e.g. lining chambers, electrolytic aluminium@ prodn. vessel, etc. |
| 03/04/1993 | DE4128522A1 Appts. for removing residual anode from anode nipple supports - has stripper arms which support underside of anode nipple support and stripper plates which grip around anode nipples |
| 03/02/1993 | US5190625 Electrolytic production of rare earth metals/alloys thereof |
| 02/23/1993 | US5188711 Electrolytic process for making alloys of rare earth and other metals |
| 02/18/1993 | WO1993003202A1 Apparatus and procedure for electrolytic production of magnesium |
| 02/09/1993 | US5185068 Electrolytic production of metals using consumable anodes |
| 01/27/1993 | CN1068373A Anode energy-saving technology for side-mounted self-roasting aluminium electrolyser |
| 01/14/1993 | DE4122062A1 Prepn. of dry material consisting of petroleum coke and electrode residues - for anodes for aluminium@ fusion analysis etc., using simple equipment ensuring accurate results |
| 01/06/1993 | CN2126521Y Hardened electrolyte breaker |
| 01/04/1993 | CA2071784A1 Process for the preparation of a dry aggregate for the production of electrodes |
| 12/30/1992 | CN1067456A Roasting method for self-roasting tank for aluminium electrolysis |
| 12/16/1992 | CN1019514B Process and apparatus for controlling solid electrolyte additious to electrolytie cells for aluminium productiou |
| 12/15/1992 | WO1992022682A1 Composite electrode for electrochemical processing having improved high temperature properties and method for preparation by combustion synthesis |
| 12/09/1992 | EP0517100A2 Electrolytic cell for the production of aluminum |
| 12/08/1992 | CA1311215C Cell arrangement for electrometallurgical purposes, in particular aluminum electrolysis |
| 12/08/1992 | CA1311212C Manufacture of an alkali metal aluminium halide compound and alkalimetal |
| 12/05/1992 | CA2070372A1 Electrolysis cell for the extraction of aluminum |
| 12/01/1992 | US5167787 Compacted particulate aluminum |
| 11/18/1992 | CN2122148U Positive electrode protective ring for pre-baking bositive electrode al electrolytic tank |
| 11/18/1992 | CN1066301A Melting salt electrolysis for prodn. of lead, calcium and strontium alloy |
| 11/17/1992 | US5164050 Method of obtaining uranium from oxide using a chloride process |
| 11/05/1992 | DE4114416A1 Device for cleaning used anodes - by clamping in position with movable upper and lower clamping units and impact hammering at level of solidified melt |
| 11/04/1992 | CN2120808U Catelectrode bus short join board for aluminium electric tank |
| 10/28/1992 | CN1018850B Method for making cathod carbon block used in aluminium electrolytic bath |
| 10/27/1992 | US5158655 Coating of cathode substrate during aluminum smelting in drained cathode cells |
| 10/27/1992 | CA1309542C Binder system for anodes, cathodes, and electrodes |
| 10/21/1992 | EP0509846A1 Electrolytic process for making alloys of rare earth and other metals |
| 10/20/1992 | CA1309205C Manufacture of a soderberg electrode incorporating a high carbon-contributing phenolic sacrificial binder |
| 10/18/1992 | CA2062636A1 Electrolytic process for making alloys of rare earth and other metals |
| 10/13/1992 | US5154813 Durable assembly of electroconductive low carbon steel embedded in a carbon block anode coated with a corrosion resistant metal or alloy for in aluminum reduction cell |
| 09/30/1992 | EP0506180A1 Apparatus for automatic level control in a closed channel or container for transport and/or distribution of fluidisable material |
| 09/24/1992 | DE4109464A1 Monitoring and control of density and height of unburned anode blocks - formed from granulate mass with binding agent by vibratory compaction, to eliminate defective prodn. in e.g. aluminium@ smelting |
| 09/16/1992 | CN1064510A Process for preparation of nd and nd-pr base heavy rare-earth alloy |
| 09/16/1992 | CN1064469A Carbon binder |
| 09/08/1992 | US5146469 Filling removable casing that has conductive, radial ribs; supplying direct current to bake |
| 09/08/1992 | US5145570 Plug to seal recesses for anode rods in anode blocks during calcination process |
| 09/08/1992 | CA1307235C Corrosion protection of cathode collectors in aluminum reduction cells |
| 09/02/1992 | CN2114667U Cover door for safety ceal aluminium electrolyte bath |
| 08/11/1992 | CA1306148C Composite ceramic/metal material |
| 08/11/1992 | CA1306147C Ceramic/metal composite material |
| 08/05/1992 | EP0497410A1 Method for altering the concentration of a chemical element in liquid metal via an electrochemical way |
| 08/04/1992 | US5135621 Lined with sections of carbon and mass of nonconductive refractory material |
| 07/31/1992 | WO1992013977A1 Composite electrode for electrochemical processing and method for preparation by combustion synthesis without a die |
| 07/22/1992 | CN1062931A Apparatus for controlled supply of alumina |
| 07/21/1992 | US5131988 Method of extracting lithium from aluminum-lithium alloys |
| 07/15/1992 | CN1062705A Apparatus for separating material in fluidized bed form and detection of clogging |
| 07/14/1992 | US5129998 Cathode element in an electrolysis tank which floats on the surface of the pool and a bore that can slide |
| 07/07/1992 | US5128012 Arrangement for closing the top of a Soderberg anode in an electrolytic cell or production of aluminum |