| Patents for C25C 3 - Electrolytic production, recovery or refining of metals by electrolysis of melts (10,924) |
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| 05/28/1991 | US5019158 Adding alumina to produce aluminum and lithium oxide; calcium oxide and aluminum nitride formation |
| 05/22/1991 | EP0428363A1 Apparatus for holding and refining of molten aluminium |
| 05/14/1991 | US5015343 Forming metal from oxide by electrolysis |
| 05/14/1991 | US5015342 Method and cell for the electrolytic production of a polyvalent metal |
| 05/07/1991 | US5013503 Process for continuous production of carbonaceous paste |
| 05/07/1991 | US5013413 Apparatus for the continuous production of a polyvalent metal |
| 05/07/1991 | CA1283884C Anode for alumina electrolysis with cerium oxycompound coating and inhibiting agent |
| 05/07/1991 | CA1283883C Dimensionally stable anode for molten salt electrowinning and method of electrolysis |
| 05/02/1991 | WO1991005889A1 Busbar arrangement for aluminum electrolytic cells |
| 05/01/1991 | CN1012508B Preparation of power-saving carbon anode for aluminum electroextration |
| 05/01/1991 | CN1012507B Steel cathode rod for aluminium electrolysis bath |
| 04/24/1991 | EP0424287A1 Process and device for introducing at least one liquid or gaseous halide into the bath of a molten salt electrolysis cell |
| 04/23/1991 | US5009752 Process and apparatus for recovery of fissionable materials from spent reactor fuel by anodic dissolution |
| 04/17/1991 | EP0422142A1 An anode substrate coated with rare earth oxycompounds. |
| 04/17/1991 | CN2075209U Cathode conducting structure of al electrolytic cell |
| 04/16/1991 | US5007991 Complexes with potassium fluoride |
| 04/13/1991 | CA2000647A1 Busbar arrangement for aluminum electrolytic cells |
| 04/09/1991 | US5006209 Electrolytic reduction of alumina |
| 04/03/1991 | EP0420258A1 Crust breaker device for aluminium electrolysis cells |
| 04/02/1991 | US5004524 Refractory oxycompound/refractory hard metal composite and used in molten salt aluminum production cells |
| 03/28/1991 | CA2025499A1 Crust breaker device for aluminium electrolysis cells |
| 03/27/1991 | CN1012184B Controlling tar content of positive electrode for aluminium electrolizing |
| 03/20/1991 | CN2073419U Titanium boride inertia catelectrode being able to hot-rechange |
| 03/20/1991 | CN1012082B Direct electrolysis for producing alloy of rare-earth, aluminium titanium and boron |
| 03/20/1991 | CN1012040B Technology for decarbonizing wet clarifying dregs of f-bearing smoke |
| 03/19/1991 | US5000829 Process for preparing praseodymium metal or praseodymium-containing alloy |
| 03/13/1991 | EP0415945A1 A method for the electrolytic production of a polyvalent metal and equipment for carrying out the method |
| 03/12/1991 | US4999097 Reduction of metal oxides to form metals |
| 03/12/1991 | US4999092 Transporting a liquid past a barrier |
| 03/12/1991 | US4998710 Apparatus for holding and refining of molten aluminum |
| 03/12/1991 | CA1281304C Method and apparatus for electrolytic reduction of alumina |
| 02/26/1991 | US4995948 To high purity metal |
| 02/26/1991 | CA1280715C Electrolytic cell with anode having projections and surrounded by partition |
| 02/19/1991 | US4993501 Hydraulic hammer in particular for use in dusty and/or corrosive environments |
| 02/13/1991 | EP0412114A1 A method for providing a collar about an anode nipple, and a device for carrying out said method |
| 02/12/1991 | US4992146 Method for setting electrodes in aluminum electrolysis cells |
| 02/05/1991 | US4990081 Apparatus for shaping carbonaceous blocks by multiaxial compacting |
| 01/29/1991 | US4988417 Production of lithium by direct electrolysis of lithium carbonate |
| 01/23/1991 | CN1011314B Anode pasty for aluminium electrolysis and method for preparing same |
| 01/16/1991 | EP0408468A1 Process for producing uranium from oxygen-containing uranium compounds by chlorination |
| 01/09/1991 | CN1048417A Cathode lump carbon made of artificial graphite and its preparation |
| 01/08/1991 | CA1278675C Cement for collector bar-carbon block joints of electrolytic cells |
| 01/03/1991 | CA2019507A1 Point feeder for aluminium electrolysis cells |
| 12/27/1990 | EP0380645A4 Apparatus and method for the electrolytic production of metals |
| 12/19/1990 | EP0402760A1 Organoaluminum electrolytes for the electrolytic deposition of high-purity aluminum |
| 12/12/1990 | EP0402288A2 Process for the separation of calcium and nitrogen from lithium |
| 12/12/1990 | EP0401601A1 Electrochemical graining of aluminum or aluminum alloy surfaces |
| 12/11/1990 | US4976841 Busbar arrangement for aluminum electrolytic cells |
| 12/05/1990 | CA2018180A1 Electrochemical graining of aluminum of aluminum alloy surfaces |
| 12/04/1990 | USH857 Electrolytic process for preparing uranium metal |
| 12/04/1990 | CA1277144C Production of magnesium metal from magnesium containing materials |
| 11/28/1990 | EP0399786A2 Refractory linings capable of resisting sodium and sodium salts |
| 11/27/1990 | US4973390 Dehydration pretreatment |
| 11/27/1990 | CA1276907C Refining of lithium-containing aluminum scrap |
| 11/27/1990 | CA1276906C Low temperature alumina electrolysis |
| 11/20/1990 | CA1276585C Process for the preparation of electrolytic rare earths or their alloys, and device used in said process |
| 11/15/1990 | WO1990013683A1 Method of obtaining carbon-containing materials |
| 11/14/1990 | EP0396586A1 Cermet anode compositions with high content alloy phase |
| 11/13/1990 | CA1276262C Control method of pitch content for anodes used in electrolytic aluminium |
| 10/30/1990 | US4966674 Cerium oxycompound, stable anode for molten salt electrowinning and method of production |
| 10/30/1990 | US4966662 Process for preparing praseodynium metal or praseodymium-containing alloy |
| 10/30/1990 | US4966661 Process for preparation of neodymium or neodymium alloy |
| 10/24/1990 | EP0394154A1 Apparatus for the continuous production of a multivalent metal by electrolysis of a halide thereof dissolved in a molten bath |
| 10/24/1990 | EP0393817A1 Cathode protection in aluminium-smelting cells |
| 10/24/1990 | EP0393816A1 Cell for the electrolytic production of aluminium in a molten bath |
| 10/02/1990 | US4960494 Ceramic/metal composite material |
| 10/02/1990 | CA1274672A1 Process for the reduction of fluorides of silicon, titanium, zirconium or uranium |
| 09/19/1990 | EP0387687A1 Process and apparatus for regulating the interpolar distance to compensate the anode burning up in electrolysis cells |
| 09/19/1990 | CN2062336U Aluminium electrolyser with combined sin and sic material as isde lining brick |
| 09/18/1990 | CA1274215A1 Use of magnesium aluminum spinel in light metal reduction cells |
| 09/12/1990 | EP0386899A2 Process for controlling aluminium smelting cells |
| 09/11/1990 | US4956158 Stabilization of fluorides of spent potlining by chemical dispersion |
| 09/11/1990 | US4956068 Electrowinning aluminum |
| 09/11/1990 | US4956054 Method and apparatus for removing carbon anodes in aluminum electrolysis cells |
| 09/11/1990 | CA1273895A1 Linings for aluminium reduction cells |
| 09/10/1990 | CA2011769A1 Method and apparatus for adjusting the distance between the poles of electrolysis cells |
| 09/08/1990 | WO1990010735A1 An anode substrate coated with rare earth oxycompounds |
| 09/08/1990 | CA2030788A1 Anode substrate coated with rare earth oxycompounds |
| 09/05/1990 | CN1045135A Particulate anode paste and process for preparing same |
| 08/21/1990 | CA1272905A1 Individual marking process of precooked anodes for the production of electrolytic aluminium |
| 08/16/1990 | EP0382659A1 Method of making a carbonised paste to be shaped in a mixer exit |
| 08/16/1990 | DE4004575A1 High purity titanium used as cathodic sputtering target - in molten salt electrolytic cell, with parts contacting electrolyte made of nickel to avoid titanium contamination |
| 08/14/1990 | US4948676 Cermet material, cermet body and method of manufacture |
| 08/08/1990 | EP0380645A1 Apparatus and method for the electrolytic production of metals |
| 08/07/1990 | US4946502 Protective coatings for the carrier bars of pre-baked anodes and the emerging part of the anodes |
| 08/01/1990 | EP0380300A1 Aluminium electrolysis cell with continuous anode |
| 08/01/1990 | CN1044305A Precalcined carbon anode contg, lithium carbonate |
| 07/31/1990 | US4944859 Magnesium chloride electrolysis |
| 07/25/1990 | EP0378842A1 Protector sleeve for current supply elements |
| 07/25/1990 | EP0378584A1 Cermet anode with continuously dispersed alloy phase and process for making |
| 07/18/1990 | CN1043964A Natural graphite cathode carbon piece and its manufacturing method |
| 07/17/1990 | CA1271725A1 Device and method using a power feed circuit and an independent magnetic field correction circuit for connecting very high intensity, aluminium production electrolysis cells |
| 07/03/1990 | US4938848 Method and apparatus for conveying split streams of alumina powder to an electrolysis cell |
| 06/28/1990 | EP0370075A4 Electrolytic cell and process. |
| 06/27/1990 | CN1043350A Method for using recovered materials from dust of aluminium electrolyser in aluminium electrolysis |
| 06/20/1990 | CN1043163A Busbar arrangement for large, transversally disposed electrolysis cells |
| 06/20/1990 | CN1008451B Method and apparatus for the continuous production of electrode material |
| 06/19/1990 | US4935107 Process for electrochemical measurement of the concentration of oxide ions in a bath based on molten halides |
| 06/19/1990 | CA1270504A1 Stud removing and transfer adaption mode |
| 06/06/1990 | EP0371653A1 Busbar arrangement for transversely disposed electrolysis cells |