| Patents for C25C 3 - Electrolytic production, recovery or refining of metals by electrolysis of melts (10,924) |
|---|
| 07/01/1992 | EP0493279A1 Apparatus for separating a fluidized material and for detecting clogging |
| 06/23/1992 | US5124008 Multistep processing in definite sequence; recycling all reactants and reagents; heat recovery |
| 06/23/1992 | CA1304040C Method of controlling the alumina feed into reduction cells for producingaluminium |
| 06/17/1992 | DE4141186A1 Monolithic refractory lining for aluminium melting furnace - contains aluminium oxide, silicon di:oxide and calcium oxide |
| 06/17/1992 | CN1062008A Cathode carbon block for electrolysis of aluminium and making method thereof |
| 06/11/1992 | WO1992009724A1 Electrode assemblies and multimonopolar cells for aluminium electrowinning |
| 06/09/1992 | US5120478 Cement for collector bar-carbon block joints of electrolytic cells |
| 06/02/1992 | US5118396 Electrolytic process for producing neodymium metal or neodymium metal alloys |
| 06/02/1992 | US5117672 Machines for straightening elongate components such as anode rods |
| 05/21/1992 | DE4036485A1 Handling equipment for positioning and alignment of carbon@ anode blocks in pairs - for connection by anode rods as double anodes, comprising alignment station with lifting grippers and centring elements for nipple holes |
| 05/20/1992 | EP0486410A1 Wet process treatment of spent pot-linings from Hall-Héroult electrolytic cells |
| 05/19/1992 | US5114545 Modified cryolite electrolyte bath |
| 05/17/1992 | CA2055135A1 Wet process of spent brasques from hall-heroult electrolytic tanks |
| 05/06/1992 | EP0332663B1 Electrolytic furnace |
| 05/05/1992 | US5110427 Recycling of aluminum; electrochemistry |
| 05/05/1992 | US5110426 Continuous circulation |
| 04/29/1992 | EP0482388A1 Mercury recovery process |
| 04/28/1992 | US5108572 Electrolytic furnace |
| 04/28/1992 | US5108557 Ore point feeder and method for soderberg aluminum reduction cells |
| 04/22/1992 | CN1060506A Method and apparatus for continuous supply of alumina |
| 04/21/1992 | CA1299138C Composite electrode with aligned bar-shaped elements having wedge-shaped surfaces |
| 04/16/1992 | WO1992006229A1 Method and apparatus for continuous supply of alumina |
| 04/06/1992 | WO1992006230A1 Apparatus for controlled supply of alumina |
| 04/06/1992 | CA2093012A1 Apparatus for controlled supply of alumina |
| 04/05/1992 | WO1992006228A1 Continuous ore feeder for soderberg aluminum reduction cells |
| 04/05/1992 | CA2093338A1 Continuous ore feeder for soderberg aluminum reduction cells |
| 03/31/1992 | CA1298102C Cermet material, cermet body and method of manufacture |
| 03/24/1992 | US5098530 Fusion refining electrolysis to form a protective globe |
| 03/17/1992 | US5096631 Method and device for providing a collar about an anode nipple |
| 03/17/1992 | US5096545 Plutonium recovery from spent reactor fuel by uranium displacement |
| 03/11/1992 | EP0473942A1 Method for impregnating solids with liquid bonding agents and its application |
| 03/10/1992 | US5094728 Alumina in cryolite melt to produce aluminum |
| 03/06/1992 | CA2048916A1 Method of impregnating hard substances with liquid binding agents, and use thereof |
| 02/25/1992 | US5091161 Leaching with hydrochloric acid, adding magnesia to slurry to precipitate impurities, filtering |
| 02/25/1992 | US5091065 Process for preparation of neodymium or neodymium-iron alloy |
| 02/21/1992 | WO1992003598A1 Ledge-free aluminium smelting cell |
| 02/21/1992 | WO1992003597A1 Improved aluminium smelting cell |
| 02/18/1992 | US5089094 Process for the electrolytic production of magnesium |
| 02/18/1992 | US5089093 Process for controlling aluminum smelting cells |
| 02/12/1992 | EP0470573A2 Method for the treatment of fluor-containing wastes |
| 02/12/1992 | CN2095869U Shell crashing machine |
| 02/12/1992 | CN1015449B Process and apparatus for shaping carbonaceous blocks by multiaxial compacting |
| 02/09/1992 | CA2048520A1 Method for working up fluorine-containing residues |
| 01/30/1992 | DE4110324C1 Pressing of tin plate scrap - involves immersion in molten sodium followed by electrolysis avoiding waste water contamination |
| 01/29/1992 | CN1058242A Rapid electric baking of self-baking anode electrolyser |
| 01/28/1992 | CA1294919C Producing electrolytic cathode of carbon material, refractory insulation shell, and cast concrete |
| 01/09/1992 | WO1992000255A1 Process for producing carbon matrix materials and the materials so-produced |
| 01/07/1992 | US5078849 Crust breaker device for aluminum electrolysis cells |
| 01/07/1992 | US5078587 Forming tool for forming peg holes in an anode |
| 12/31/1991 | CA1293705C Laminated carbon cathode for cells for the production of aluminium by electrolytic smelting |
| 12/22/1991 | CA2019667A1 Process for producing carbon matrix materials and the materials so-produced |
| 12/18/1991 | CN1057074A Fabricating method for energy-saving composite carbon anode for aluminium electrolyzing |
| 12/10/1991 | US5071534 Aluminum electrolysis cell with continuous anode |
| 12/10/1991 | US5071533 Metal body with protective coating of carbon |
| 12/10/1991 | US5071523 Purification from recycled scrap; recovering aluminum and lithium through layered electrolysis |
| 12/04/1991 | CN1056721A Aluminium electrolytic tank wall inside filler charcoal block |
| 12/03/1991 | US5069842 Process of shaping carbonaceous blocks by multiaxial compacting |
| 12/03/1991 | US5069771 Fluorine-containing cerium oxycompound protective coating |
| 11/27/1991 | CN1014911B Active carbon anode for electrolyting al |
| 11/27/1991 | CN1014910B Method for manufacturing natural graphite cathode carbon pieces |
| 11/20/1991 | CN1014807B Producing method for artificial stone mill cathode charcoal |
| 11/13/1991 | EP0211924B1 Method of controlling the alumina feed into reduction cells for producing aluminium |
| 11/12/1991 | US5064511 Electrochemical graining of aluminum or aluminum alloy surfaces |
| 11/12/1991 | CA1291968C Apparatus with a fluidized bed for the continuous separation of two mixed solid phases |
| 11/06/1991 | EP0455590A1 Regulating and stabilizing the AlF3-content of aluminium electrolysis cells |
| 11/05/1991 | US5062929 Aluminum oxide |
| 11/05/1991 | CA2041440A1 Regulation and stabilisation of the alf3 content in an aluminium electrolysis cell |
| 10/30/1991 | CN2087623U Portable busbar servicing machine of prebaked cell for aluminum-reduction |
| 10/30/1991 | CN1055768A Fluidized-bed roasting treatment method for aluminium electrolytic flue ash |
| 10/29/1991 | CA1291442C Plant for the electrolytic production of reactive metals in molten salt baths |
| 10/15/1991 | US5057194 Salt-based melting process |
| 10/09/1991 | CN1055206A Method for the adhesion of titanium boride powder onto carbon block |
| 10/02/1991 | CN1055016A Method for making cathod carbon block used in aluminium electrolytic bath |
| 09/19/1991 | WO1991013701A1 Spent pot liner treatment process |
| 09/11/1991 | CN1013888B Process and equipment for prepn. of dysprosium-neodymium alloy |
| 09/03/1991 | US5045168 Point feeder for aluminium electrolysis cell |
| 08/29/1991 | DE4005962A1 Straightening machine for anode rods - has straightening jaws and rotating unit to turn the rods in the straightening position through 90 deg. |
| 08/27/1991 | US5043047 Shape and positioning of anodes reduces bubble migration, length of bubble travel, and turbulence of bubble detachment |
| 08/20/1991 | CA1287855C Fluidizable pulverulent material regulated distribution device |
| 08/20/1991 | CA1287814C Process to prepare transition metal powders by electrolysis in molten salts baths |
| 08/14/1991 | WO1991012357A1 Electrolytic reduction of alumina |
| 08/14/1991 | EP0441739A1 Method of recycling coated metal waste material by shredding |
| 08/14/1991 | CN1013504B Method and apparatus for sealing the cathode pole on a prestressing force condition |
| 08/09/1991 | CA2035151A1 Process for the preparation by crushing of scrap comprising metal parts provided with a surface coating |
| 08/07/1991 | EP0440488A2 Vehicle for collecting crust and carbon remainders from electrolysis cells |
| 07/17/1991 | EP0436873A1 Stopper for obturating holes provided for anode rods in anode blocks during calcination treatment |
| 07/09/1991 | US5030335 Arrangement for gas collection in aluminium reduction cells having self baking |
| 07/03/1991 | CN1013043B Industry aluminium electrolyzer to produce directly a intermediate alloy of aluminium-titanium-boron three elements |
| 07/02/1991 | US5028370 Sintering, Coal Mining Debris |
| 07/02/1991 | US5028301 Supersaturation plating of aluminum wettable cathode coatings during aluminum smelting in drained cathode cells |
| 06/29/1991 | CA2033296A1 Plug for sealing the recesses for anode rods in anode blocks during the calcination process |
| 06/26/1991 | CN2079618U Al cell with tib anode construction |
| 06/19/1991 | EP0433227A2 Shaping tool providing anodes with studholes |
| 06/18/1991 | US5024822 Crushing; incineration; mixing with siliceous materials; glassy molten residue |
| 06/18/1991 | US5024737 Electrolysis of molten calcium chloride, deposition into melted magnesium cathode yields calcium-magnesium alloy; materials handling |
| 06/12/1991 | CN1052153A Single-tank control cabinet for electrolysis of aluminium |
| 06/11/1991 | CA1284783C Protective coating for pre-cooked anode rod |
| 06/08/1991 | CA2031604A1 Forming tool for forming peg holes in an anode |
| 05/29/1991 | CN1051766A Busbar arrangement for aluminium electrolytic cells |
| 05/28/1991 | US5019225 Molten salt electrowinning electrode, method and cell |