| Patents for C25C 3 - Electrolytic production, recovery or refining of metals by electrolysis of melts (10,924) |
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| 04/11/1989 | CA1252438A1 Apparatus for feeding particulate material |
| 04/11/1989 | CA1252418A1 Electrolytic cell and method |
| 03/28/1989 | US4816129 Suspension arrangement for anode bars in cells for electrolytic production of aluminum |
| 03/23/1989 | WO1989002490A1 Composite cell bottom for aluminum electrowinning |
| 03/23/1989 | WO1989002489A1 Cathode current collector for aluminum production cells |
| 03/23/1989 | WO1989002488A1 Refractory oxycompound/refractory hard metal composite |
| 03/23/1989 | WO1989002487A1 Composite cell bottom for aluminum electrowinning |
| 03/23/1989 | WO1989002486A1 Cathode current collector for aluminum production cells |
| 03/23/1989 | WO1989002423A1 Refractory oxycompound/refractory hard metal composite |
| 03/22/1989 | EP0308015A1 Cathode current collector for aluminum electrowinning |
| 03/22/1989 | EP0308014A1 Refractory oxycompound/refractory hard metal composite |
| 03/22/1989 | EP0308013A1 Composite cell bottom for aluminum electrowinning |
| 03/21/1989 | US4814050 Estimation and control of alumina concentration in hall cells |
| 03/21/1989 | CA1251417A1 Method for controlling precisely the presence of a small amount of alumina in an aluminum producing electrolysis cell |
| 03/15/1989 | EP0307107A1 Method for the combustion of spent potlinings from the manufacture of aluminum |
| 03/14/1989 | CA1251162A1 Method of producing a high purity aluminum-lithium mother alloy |
| 03/14/1989 | CA1251161A1 Continuous control method of the level of dissolved metal in a molten salt bath, and its use for the continuous addition of said metal to the salts in an electrolysis cell |
| 03/14/1989 | CA1251160A1 Process for the production of a metal by way of halogen electrolysis in a molten salt bath, including double simultaneous and continuous deposition, and devices used in said process |
| 03/09/1989 | WO1989001994A1 Molten salt electrolysis with non-consumable anode |
| 03/09/1989 | WO1989001993A1 Non-consumable anode for molten salt electrolysis |
| 03/09/1989 | WO1989001992A1 A composite ceramic/metal material |
| 03/09/1989 | WO1989001991A1 A ceramic/metal composite material |
| 03/08/1989 | EP0306102A1 Molten salt electrolysis with non-consumable anode |
| 03/08/1989 | EP0306101A1 Non-consumable anode for molten salt electrolysis |
| 03/08/1989 | EP0306100A1 A composite ceramic/metal material |
| 03/08/1989 | EP0306099A1 A ceramic/metal composite material |
| 03/07/1989 | CA1250713A1 Method of producing carbonaceous bodies |
| 03/07/1989 | CA1250711A1 Method of calcining carbonaceous bodies, in particular electrodes, in either continuous or intermittent furnaces, and a containment structure for the implementation thereof |
| 03/07/1989 | CA1250710A1 Method of producing carbonaceous bodies |
| 02/28/1989 | US4808283 Electrolysis of mixed molten lithium and potassium chlorides unsing hollow cylinder aluminum cathode |
| 02/28/1989 | CA1250544A1 Method and device for the continuous manufacture of lithium |
| 02/14/1989 | US4804646 Light weight shaped opaque aluminum borate product and method of making same |
| 02/14/1989 | US4804642 High strength, lightweight |
| 02/14/1989 | US4804448 High temperature electrolytic cell containing alkali salt electrolyte melt and solid electrolyte |
| 02/14/1989 | US4803768 Method of, and apparatus for, applying sheet metal collars onto the nipples of anode bars |
| 02/09/1989 | WO1989001061A1 Electrolytic furnace |
| 02/08/1989 | CN1030949A Direct electrolysis for producing alloy of rare-earth, aluminium titanium and boron |
| 02/07/1989 | CA1249791A1 Method and automatic superaspiration device on aluminium electrolysis cells |
| 01/25/1989 | CN1030619A Anode |
| 01/25/1989 | CN1030618A Linings for aluminum reduction cells |
| 01/24/1989 | US4800003 Production of magnesium metal from magnesium containing materials |
| 01/18/1989 | EP0299733A2 Linings for aluminium reduction cells |
| 01/11/1989 | EP0298198A1 Equipment for the mechanized replacement of the anodes in the electrolytic cells for aluminum production |
| 01/10/1989 | CA1248495A1 Lining of graphite blocks and insulating layer in aluminum electrolysis cell |
| 01/05/1989 | DE3721311A1 Process and appliance for molten-salt electrolysis of aluminium |
| 01/03/1989 | US4795540 Slotted cathode collector bar for electrolyte reduction cell |
| 01/03/1989 | CA1248048A1 Equipment for cleaning remnants of carbon blocks |
| 12/27/1988 | US4793854 Highly pure titanium and process for producing the same |
| 12/13/1988 | US4790917 Refining of lithium-containing aluminum scrap |
| 12/13/1988 | CA1246493A1 Anode assembly comprising carbon anode glued to inert carbon top |
| 12/06/1988 | CA1246005A1 Busbar arrangement for aluminium electrolytic cells |
| 12/01/1988 | WO1988009388A1 Process for treating liquid metals |
| 11/30/1988 | CN87103606A Hermetic feeding device for a side-insertion soderberg cell |
| 11/30/1988 | CN87103508A New process of comprehensively utilizing boron paste |
| 11/29/1988 | US4787965 Protective coating for the carrier bars of prebaked anodes and the emerging part of said anodes |
| 11/23/1988 | CN88102179A Process and apparatus for controlling solid electrolyte additions to electrolytic cells for aluminium production |
| 11/22/1988 | US4786379 Measuring current distribution in an alumina reduction cell |
| 11/22/1988 | CA1245178A1 Combination diaphragm and fractional crystallization cell |
| 11/15/1988 | US4784742 Cathode for magnesium production |
| 11/15/1988 | US4784733 Aluminum reduction cells, anodes |
| 11/15/1988 | CA1244794A1 Aluminium reduction cells |
| 11/08/1988 | US4783245 Process and apparatus for producing alloy containing terbium and/or gadolinium |
| 11/02/1988 | EP0289434A1 Process for the preparatation of master alloys of iron and neodymium by electrolysis of oxygen-containing salts in molten fluorides |
| 11/02/1988 | CN87214638U Cathod structure of half-lead electrolytic cell with high electric conductivity |
| 10/26/1988 | EP0288397A1 Process and apparatus for monitoring the solid electrolyte additions to electrolysis vats for the production of aluminium |
| 10/25/1988 | US4780186 Lithium transport cell process |
| 10/12/1988 | EP0286176A1 Process for the electrolytic production of metals |
| 10/12/1988 | EP0286175A1 Process for the electrolytic production of metals |
| 10/04/1988 | US4775455 Carbonaceous aggregate in curable phenol-formaldehyde resin |
| 09/27/1988 | US4774210 Densification aid for aluminum borate products |
| 09/27/1988 | US4773980 Casting liquid cast iron between bars and grooves in carbonaceous parallelepipedic block in production of aluminum by electrolysis |
| 09/20/1988 | CA1242163A1 Method for electrolytically obtaining magnesium metal |
| 09/13/1988 | US4770826 Method of regulating the tar content of anodes intended for the production of aluminum by electrolysis |
| 09/13/1988 | US4770752 Process for purifying the gases emitted from the electrolysis pots for the production of aluminum and related equipment |
| 09/13/1988 | US4770750 Process for producing transition metal powders by electrolysis in melted salt baths |
| 09/13/1988 | CA1241929A1 Producing magnesium in cell with bipolar electrodes and cavities in cathodic faces |
| 08/30/1988 | US4767453 Agitation under inert gas |
| 08/24/1988 | CN87100845A Production of anhydrous chlorides of rase earth elements and the electrolysis thereof |
| 08/23/1988 | US4766552 Method of controlling the alumina feed into reduction cells for producing aluminum |
| 08/23/1988 | CA1240950A1 Controlling aluminium reduction cell operation |
| 08/23/1988 | CA1240826A1 Dispersing particulate material in a stream of gas |
| 08/17/1988 | CN85102283B Method for making nd-ferro master alloy |
| 08/16/1988 | US4763585 Method for the combustion of spent potlinings from the manufacture of aluminum |
| 08/16/1988 | CA1240635A1 Cell component for an electrolytic aluminum production cell |
| 08/10/1988 | EP0211846B1 Powered vehicle for operation of ladles, in particular for tapping aluminium |
| 08/09/1988 | US4762694 Molten salt extraction process for the recovery of valued transition metals from land-based and deep-sea minerals |
| 08/03/1988 | CN86108948A Mfr. of al-li intermediate-alloy |
| 08/02/1988 | US4761207 Continuous salt-based melting process |
| 08/02/1988 | CA1239899A1 Method and apparatus of cleaning residual anodes employed for fused-salt electrolysis |
| 07/27/1988 | CN87107682A Method and apparatus for sealing the cathode pole on a prestressing force condition |
| 07/26/1988 | CA1239617A1 Cathode pot for an aluminum electrolytic cell and process for manufacturing composite bodies for its sidewall |
| 07/26/1988 | CA1239613A1 Recovery of tin from starting material and low tin concentrates by melting with potassium hydroxide |
| 07/20/1988 | EP0274774A1 Electrodeposition of aluminium |
| 07/19/1988 | US4758316 Melting, purifying |
| 07/19/1988 | CA1239375A1 Reduction pot |
| 07/12/1988 | US4756814 Forming recessed or relief digital code impression in anodes |
| 06/21/1988 | US4752362 Detecting and estimating shorting phenomena in hall cells and control of cell anodes in response thereto |
| 06/21/1988 | CA1238294A1 Process and device for exhauster electrolyte cell changeover |
| 06/16/1988 | DE3641754A1 Process for preparing aluminium nitride powder |
| 06/07/1988 | US4749463 Electrometallurgical cell arrangement |