Patents for C25C 3 - Electrolytic production, recovery or refining of metals by electrolysis of melts (10,924)
04/1980
04/29/1980US4200513 Device for reducing magnetic disturbances in series of very high intensity electrolysis cells
04/15/1980US4198282 Replaceable cathode unit suitable as a module for building up of stable, non-deformable cathode systems in electrolyzers for the production of magnesium, and an electrolyzer with cathode units incorporated therein
04/15/1980CA1075638A1 Process and device for compensating the magnetic fields of adjoining lines of igneous electrolysis tanks put across
04/02/1980EP0009044A1 Process for obtaining aluminium by electrolysis in a melted bath and electrolytic cell.
04/01/1980US4196067 Absorption of magnetic field lines in electrolytic reduction cells
03/1980
03/25/1980US4194959 Improved metal pad behavior for production of aluminum
03/25/1980US4194958 Arrangement for compensating for detrimental magnetic influence between two or more rows of transverse electrolytic pots or cells for producing aluminum, by electrolytic reduction
03/25/1980CA1074258A1 Apparatus for stripping an anode block from an anode assembly
03/11/1980US4192730 Carbonaceous luting paste and ambient temperature luting process
03/11/1980US4192724 Method for electrolyzing molten metal chlorides
03/11/1980CA1073400A1 Electrodeposition process
03/05/1980EP0008561A1 Apparatus for compacting the carbonaceous pastes in the linings of metallurgical furnaces
02/1980
02/19/1980US4189368 System of busbars for aluminium-producing electrolyzers
02/19/1980CA1072042A1 Method of tapping aluminum from a cell for electrolytic recovery of aluminum
02/12/1980US4188279 Shaped carbon articles
02/12/1980CA1071569A1 Hydrometallurgical process for treating metal sulfides containing lead sulfide
02/05/1980US4187155 Molten salt electrolysis
01/1980
01/22/1980US4185055 Core temperature, electrodes
01/15/1980CA1069674A1 Lightweight silicon oxynitride
01/08/1980CA1069461A1 Electrodes for aluminum reduction cells
01/08/1980CA1069315A1 Method for preparing manganese chloride and manganese by igneous electrolysis of the manganese chloride obtained
01/01/1980US4181584 Resistance heaters, melting
01/01/1980US4181583 Method for heating electrolytic cell
01/01/1980US4181579 Sodium ion conducting sodium aluminum phosphate glasses
12/1979
12/18/1979US4179346 Selective use of wettable and non-wettable graphite electrodes in electrolysis cells
12/18/1979US4179345 Controlled wettability graphite electrodes for selective use in electrolysis cells
12/04/1979US4177128 Cathode element for use in aluminum reduction cell
11/1979
11/27/1979US4176037 Production of aluminum
11/27/1979CA1067036A1 Process and apparatus for compensating magnetic fields in adjacent lines of cross wise placed electrolysis of fused salts cells
11/20/1979US4175022 Electrolytic cell bottom barrier formed from expanded graphite
11/20/1979US4174972 Nonfibrous castable refractory concrete having high deflection temperature and high compressive strength and process
11/20/1979CA1066661A1 Cell for fused-salt electrolysis
11/14/1979EP0005410A1 Cold forming carbonaceous paste; use and process for making linings with said paste
11/13/1979CA1066228A1 Method and device for cleaning worn anode butts from igneous electrolysis tank
11/06/1979US4173518 Electronic conductive oxide ceramics
10/1979
10/23/1979US4172023 Protective electrode sleeve
10/23/1979US4172018 Electrolytic cell
10/23/1979US4172017 Process for producing chlorine from ammonium chloride
10/09/1979US4170533 Used for electrolysis of aluminum
10/09/1979US4170526 Electroplating bath and process
09/1979
09/25/1979US4169034 Means of compensating the magnetic field induced by the adjacent line in series of high intensity electrolysis cells
09/18/1979US4168215 Situ cleaning of electrolytic cells
09/11/1979US4167468 Cobalt diaphragm
09/11/1979US4167419 Mix suitable for use in seams between carbon blocks
09/11/1979CA1062194A1 Recovery of zinc from zinc chloride by fused salt electrolysis
09/04/1979US4166779 Electrolytic process for producing aluminium
09/04/1979CA1061745A1 Method and apparatus for supplying power to igneous electrolysis baths st crosswise____________________________________________________________
08/1979
08/28/1979US4166159 Process for forming fast sodium-ion transport compositions
08/23/1979WO1979000606A1 Process for obtaining aluminium by electrolysis in a melted bath
08/22/1979EP0003712A1 Process for reducing the magnetic perturbations in rows of high amperage electrolytic cells
08/22/1979EP0003598A1 Process for the production of aluminium by electrolysis of fused salts
08/21/1979US4165263 Method of preparing an electrolytic cell for operation
08/21/1979US4165262 Method of electrowinning titanium
08/14/1979CA1060384A1 Device for electrode clamping against supporting crosspieces in electrolytic cells for aluminium production
07/1979
07/31/1979CA1059466A1 Apparatus for use with electrolytic furnaces
07/17/1979CA1058554A1 Process for the electrolysis of a molten charge using inconsumable anodes
07/10/1979US4160809 Modified pyrohydrolysis process for spent aluminum reduction cell linings
07/10/1979US4160808 Pyrohydrolysis process for spent aluminum reduction cell linings
07/10/1979US4160715 Electrolytic furnace lining
07/03/1979US4159928 Process for production of aluminum
06/1979
06/19/1979US4158701 Pyrohydrolysis system for processing fluorine-containing spent and waste materials
06/05/1979US4157285 Method for preparing manganese chloride and manganese by igneous electrolysis of the manganese chloride obtained
06/05/1979CA1055879A1 Electrolyzer
06/05/1979CA1055687A1 Mix suitable for use in seams between carbon blocks
05/1979
05/29/1979US4156635 Electrolyte consisting of a mixture of two or more alkali metal halides
05/29/1979CA1055424A Fume collecting process and apparatus_
05/29/1979CA1055423A Gas collecting method and device
05/22/1979CA1054970A1 Treatment of aluminium reduction cell linings
05/15/1979US4154661 Lowermost bipolar spacing for electrolytic cell
05/08/1979CA1054238A1 Control system for alumina reduction cells
04/1979
04/24/1979US4151061 Aluminum electrolytic cell
04/24/1979CA1052961A1 Carbon composite materials
04/17/1979US4149942 Free radical oxidizers
04/17/1979CA1052844A1 Apparatus for gas collection in aluminum smelting furnaces
04/10/1979US4148706 Anode paste filling apparatus for an aluminum electrolytic cell
03/1979
03/27/1979US4146444 Method for preheating a molten salt electrolysis cell
03/27/1979US4146438 Sintered electrodes with electrocatalytic coating
03/13/1979CA1050474A1 Sensing and controlling resistance noise component in electrolytic reduction cell
03/06/1979CA1049909A1 Process for the determination of the oxide content of a molten salt charge
02/1979
02/20/1979US4140595 Use of materials in molten salt electrolysis
02/20/1979US4140594 Through interelectrode spaces
02/13/1979US4139428 Preparation of alkali metals
02/13/1979US4139427 Europium chloride enrichment process
02/13/1979CA1117289B Sub-micron carbon-containing titanium boride powder and method for preparing same
02/13/1979CA1048257A1 Sub-micron carbon-containing titanium boride powder and method for preparing same
01/1979
01/23/1979US4136003 Reduction of alumina to aluminum in presence of cryolite
01/23/1979US4135994 Process for electrolytically producing aluminum
01/09/1979US4133728 Electrolytic cell with switching means
01/09/1979US4133727 Method for extracting heat from a chamber containing a molten salt
01/09/1979US4133090 Control of binder content in carbon article manufacture
01/02/1979US4132621 Method of improving the current supply of electrolysis cells aligned in a lengthwise direction
12/1978
12/26/1978US4131522 From melt of anhydrous chlorides of magnesium, potassium and sodium
12/26/1978CA1044873A1 Process for separating hydrogen fluoride from exhaust gases formed in an electrolytic process for the production of aluminum
12/12/1978CA1044175A1 Electrolytic process for the production of metals in molten halide systems
11/1978
11/28/1978CA1043403A1 Method of coating carbon electrodes
11/21/1978US4126525 Method of controlling feed of alumina to an aluminum electrolytic cell
11/21/1978US4126474 Refractory for aluminum-melting furnaces
11/07/1978US4124476 Electrolytic cell for the production of aluminium
11/07/1978US4124465 In fluoride melt
11/07/1978US4124457 Halogenating lead sulfide ore, water washing, leaching, electrolysis