| Patents for C25C 3 - Electrolytic production, recovery or refining of metals by electrolysis of melts (10,924) |
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| 03/26/1997 | EP0764728A1 Device for machining the studholes in the upper surface of an anode block |
| 03/19/1997 | EP0763151A1 Method for the production of silicium metal, silumin and aluminium metal |
| 03/19/1997 | CN1145418A Low molecular ratio electrolyte ingredient proportion in use for self-baking aluminium electrolytic bath |
| 03/13/1997 | WO1997009468A1 Measurement of alumina in reduction pots |
| 03/13/1997 | WO1997009467A1 Electrolytic method for the production of sodium and aluminium chloride |
| 03/13/1997 | DE19533214A1 Verfahren zur elektrochemischen Herstellung von Natrium und Aluminiumchlorid A method for the electrochemical production of sodium and aluminum chloride |
| 03/13/1997 | CA2230564A1 Measurement of alumina in reduction pots |
| 03/12/1997 | EP0650538B1 Alumina supply apparatus for electrolytic smelter |
| 03/12/1997 | CN1144712A Method for purification of chiorine gas |
| 03/06/1997 | WO1997008114A1 The prouction of bodies of refractory borides for use in aluminium electrowinning cells |
| 03/06/1997 | CA2230792A1 The production of bodies of refractory borides for use in aluminium electrowinning cells |
| 03/05/1997 | EP0759887A1 Preparation of anhydrous magnesium chloride-containing melts from hydrated magnesium chloride and production of magnesium metal |
| 02/26/1997 | EP0759099A1 Cathode connection for aluminium smelter pot |
| 02/26/1997 | CN1143693A Electrolytic production process for magnesium and its alloys |
| 02/20/1997 | WO1997006290A1 Hard and abrasion resistant surfaces protecting cathode blocks of aluminium electrowinning cells |
| 02/20/1997 | WO1997006289A1 Maintaining protective surfaces on carbon cathodes in aluminium electrowinning cells |
| 02/20/1997 | CA2230864A1 Maintaining protective surfaces on carbon cathodes in aluminium electrowinning cells |
| 02/20/1997 | CA2230862A1 Hard and abrasion resistant surfaces protecting cathode blocks of aluminium electrowinning cells |
| 01/28/1997 | US5597461 Method of manufacturing an anode bar from a metal sleeve, a metal rod and a metal ring |
| 01/15/1997 | EP0730677A4 Refractory/carbon components of aluminium production cells |
| 01/14/1997 | US5593566 Electrolytic production process for magnesium and its alloys |
| 12/31/1996 | US5588787 Pulse-operated point feeder |
| 12/18/1996 | EP0638133B1 Anode-cathode arrangement for aluminum production cells |
| 12/11/1996 | EP0747509A1 Electrolytic production process for magnesium and its alloy |
| 12/10/1996 | US5582706 Electroseparation of actinide and rare earth metals |
| 12/10/1996 | US5582695 Protective concrete coatings comprising hydraulic cement, silica and refractory filler; corrosion resistance |
| 11/28/1996 | WO1996037637A1 Lining for aluminum production furnace |
| 11/27/1996 | CN1136600A Internal lining of aluminium electrolytic bath and its producing method |
| 11/26/1996 | US5578189 Decomposition and removal of H2 S into hydrogen and sulfur |
| 11/26/1996 | US5578174 Conditioning of cell components for aluminum production |
| 11/20/1996 | CA2176555A1 Method for the purification of chlorine gas |
| 11/19/1996 | CA2101062C Composite electrode for electrochemical processing and method for preparation by combustion synthesis without a die |
| 11/12/1996 | US5573574 Crystallization, electrolytic refining |
| 10/15/1996 | US5565080 Reducing the concentration of magnesium oxide by reacting with injected hydrogen chloride gas |
| 10/01/1996 | US5560809 Made of ceramic material selected from the group consisting of silicon carbide, silicon nitride and boron carbide having closed porosity; insulated so that cryolite does not freeze |
| 09/24/1996 | US5558279 Process and plant for grinding spent potlinings and similar materials |
| 09/18/1996 | EP0662159B1 Method for producing electrorefined aluminium with low uranium, thorium and rare earth content |
| 09/17/1996 | US5556817 Cryolite resistant refractory |
| 09/11/1996 | EP0730677A1 Refractory/carbon components of aluminium production cells |
| 09/04/1996 | EP0729521A1 Refractory slab joining system |
| 09/03/1996 | US5552241 Useful as electrolytes |
| 08/28/1996 | CN1032660C Moulding roasting and initiating process for self roasting tank of electrolyzing aluminum |
| 08/27/1996 | US5549799 Hoist apparatus for positioning anode in smelting furnace |
| 08/22/1996 | WO1996025536A1 Butt and thimble press |
| 08/21/1996 | EP0593512B1 Method for preparing composite electrode for electrochemical processing having improved high temperature properties and use of the electrode |
| 08/08/1996 | WO1996023745A1 Coating composition for a carbonaceous material, and resulting coating |
| 08/07/1996 | CN1128303A Self-baking aluminum electrolytic decontamination process |
| 07/23/1996 | US5538607 Anode assembly comprising an anode bar for the production of molten metal by electrolysis |
| 07/23/1996 | US5538604 Cell lining containing compound(s) which react with sodium cyanide formed during production of aluminum from alumina |
| 07/21/1996 | CA2166578A1 Suppression of cyanide formation in electrolytic cell lining |
| 07/18/1996 | WO1996021754A1 Decomposition and removal of h2s into hydrogen and sulfur from petroleum gases |
| 07/17/1996 | CN2231263Y Lateral inserting groove anode frame loading lift ring |
| 07/17/1996 | CN1126828A Temperature detecting sensor |
| 07/10/1996 | CN2230769Y Moveable hydraulic skull breaking machine |
| 07/09/1996 | US5534130 Application of phosphates of aluminum to carbonaceous components of aluminum production cells |
| 07/09/1996 | US5534119 Method of reducing erosion of carbon-containing components of aluminum production cells |
| 07/02/1996 | US5531868 Anodes and cathodes and molten electrolytes of mixed chloride salts, metal deposition on cathodes and refining spent nuclear fuels |
| 06/18/1996 | US5527442 Refractory protective coated electroylytic cell components |
| 06/13/1996 | DE4443225A1 Method of regulating the aluminium oxide concentration in an aluminium-producing electrolytic cell |
| 06/13/1996 | DE4443160A1 Joint between anode rod end pin and carbon@ anode block |
| 06/12/1996 | EP0716165A1 Process and apparatus for measuring the temperature and the bath level of molten electrolyte in aluminum winning cells |
| 06/11/1996 | US5524768 Separator for the separation of fluidizable from non-fluidizable materials |
| 06/05/1996 | EP0544737B1 Ledge-free aluminium smelting cell |
| 05/30/1996 | WO1996015846A1 Method for separating substances from a gaseous medium by dry adsorption |
| 05/22/1996 | CN1122848A Prepn. of cerium-magnesium alloy by electrolytic eutectoid of chloride |
| 05/02/1996 | WO1996012833A1 Stable anodes for aluminium production cells |
| 04/23/1996 | US5510008 Electrowinning of aluminum |
| 04/17/1996 | EP0613504B1 Cell for the electrolysis of alumina preferably at low temperatures |
| 04/16/1996 | US5507933 Carbon masses for use in aluminium production cells and process |
| 04/10/1996 | EP0705233A1 Binder systems |
| 04/09/1996 | US5505823 Electrolysis of molten mixture of potassium aluminum sulfate or aluminum sulfate with potassium sulfate in covered crucible |
| 04/04/1996 | WO1996009999A1 Cryolite resistant refractory |
| 03/27/1996 | EP0703026A1 Sensor arrangement for temperature measurement |
| 03/21/1996 | WO1996008590A1 Aluminium-immersed assembly for aluminium production cells |
| 03/20/1996 | EP0701635A1 Treating prebaked carbon anodes for aluminium production |
| 03/19/1996 | US5500100 Followed by electrodeposition |
| 03/14/1996 | WO1996007773A1 Aluminium electrowinning cell with improved carbon cathode blocks |
| 03/14/1996 | CA2596427A1 Aluminium electrowinning cell with improved carbon cathode blocks |
| 03/12/1996 | US5498320 Aluminum smelting by potassium aluminum sulfate electrolysis |
| 03/06/1996 | EP0675974A4 Electrolysis cell for metal production. |
| 02/28/1996 | EP0677119A4 Continuous alumina feeder. |
| 02/20/1996 | US5492604 Containing refractory metal, paint, oil, solvent, optionally a boron source |
| 02/13/1996 | CA1338052C Electrolytic reduction of alumina |
| 02/07/1996 | EP0695371A1 Micropyretically-produced components of aluminium production cells |
| 02/07/1996 | EP0695281A1 Conditioning of cell components for aluminium production |
| 02/01/1996 | WO1996002764A1 Actuator |
| 01/24/1996 | EP0693578A1 Pulse-operated point feeder |
| 01/24/1996 | CN2218188Y Aluminum electrolyzing tank with self roasting anode |
| 01/23/1996 | US5486278 Oxidation resistance of carbon cells by treatment with boron solution for protective coatings |
| 01/17/1996 | CN1115172A Method and plant for grinding old brasques and similar products |
| 01/10/1996 | EP0690831A1 Carbon-based bodies in particular for use in aluminium production cells |
| 01/10/1996 | EP0690830A1 Production of carbon-based composite materials as components of aluminium production cells |
| 01/02/1996 | CA1337848C Process for treating liquid metals |
| 12/27/1995 | EP0688881A1 Method for adding traces of sodium to a melt of aluminium or an aluminium alloy |
| 12/27/1995 | EP0688369A1 The bonding of bodies of refractory hard materials to carbonaceous supports |
| 12/27/1995 | EP0688368A1 Treated carbon cathodes for aluminium production |
| 12/27/1995 | CN1113967A Aluminium electrolytic bath with alkaline leak-proof baffle plate |
| 12/26/1995 | US5478664 Method of recovering reusable metals from nickel-hydrogen rechargeable battery |
| 12/23/1995 | CA2152291A1 Pulse-operated point feeder |
| 12/21/1995 | WO1995034696A1 Cathode connection for aluminium smelter pot |