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| Number | Title | Issue Date |
| 7338921 | MgB2 superconductor and method for preparation thereof An electrode is steeped in a solution of Mg and B and a negative voltage is applied to the electrode so as to precipitate superconductive MgB2 on the electrode. Superconductive MgB2 is easily manufactured in various forms and at low costs witho... | 03/04/2008 |
| 7060174 | Method for electrochemical synthesis of superconducting boron compound MgB A method for electrochemical synthesis of a superconducting boron compound MgB2 which comprises the steps of preparing a powder mixture of magnesium chloride, sodium chloride, potassium chloride and magnesium borate, drying the mixture by electrical heati... | 06/13/2006 |
| 6921473 | Electrolytic reduction of metal oxides such as titanium dioxide and process applications A method of removing oxygen from a solid metal, metal compound or semi-metal M1O by electrolysis in a fused salt of M2Y or a mixture of salts, which comprises conducting electrolysis under conditions such that reaction of oxygen rather than M2 deposition occurs at a... | 07/26/2005 |
| 6676824 | Process for purification of molten salt electrolytes A process for purification of molten salt electrolytes containing magnesium chloride in which oxygen-containing impurities such as magnesium hydroxychloride are destroyed both electrolytically and chemically. The process comprises passing a direct current... | 01/13/2004 |
| 6375813 | Dimensionally stable anode for electrolysis, method for maintaining dimensions of anode during electrolysis A dimensionally stable electrode is provided comprising a hollow substrate with an open upper end for confining a fluid containing a metal, a film covering portions of the external surface; and a mechanism for replenishing the film. Also provided is a met... | 04/23/2002 |
| 6299742 | Apparatus for metal extraction An amperometric in situ apparatus and technique for measuring the concentrations and transport properties of easily dissociable oxides in slags is described. The technique consists of a combination of different measurements utilizing an electrolyte to sep... | 10/09/2001 |
| 6146513 | Electrodes, electrolysis apparatus and methods using uranium-bearing ceramic electrodes, and methods of producing a metal from a metal compound dissolved in a molten salt, including the electrowinning of aluminum The present invention includes uranium-bearing ceramic phase electrodes and electrolysis apparatus and electrolysis methods featuring same, including methods of metal production and the like by the electrolytic reduction of oxides or salts of the respecti... | 11/14/2000 |
| 6143270 | Anhydrous magnesium chloride Anhydrous magnesium chloride is prepared by a process in which hydrated magnesium chloride (10) is mixed in a vessel (11) with ethylene glycol (12). The mixture (13) is dehydrated in distillation columns (14, 15 and 16) with the dehydrated ethylene glycol... | 11/07/2000 |
| 6083362 | Dimensionally stable anode for electrolysis, method for maintaining dimensions of anode during electrolysis A dimensionally stable electrode is provided comprising a hollow substrate with an open upper end for confining a fluid containing a metal, a film covering portions of the external surface; and a mechanism for replenishing the film. Also provided is a met... | 07/04/2000 |
| 5976345 | Method and apparatus for metal extraction and sensor device related thereto An amperometric in situ apparatus and technique for measuring the concentrations and transport properties of easily dissociable oxides in slags is described. The technique consists of a combination of different measurements utilizing an electrolyte to sep... | 11/02/1999 |
| 5914440 | Method and apparatus removal of solid particles from magnesium chloride electrolyte and molten magnesium by filtration The present invention is concerned with a system for the filtration of molten material. The system is particularly useful for removing MgO impurities present in molten magnesium chloride electrolyte. The invention also comprises a method for removing soli... | 06/22/1999 |
| 5665220 | Electrolytic magnesium production process In the electrolytic production of magnesium from an electrolyte comprising magnesium chloride and impurity quantities of magnesium oxide which adversely affects the efficiency of cell operation, the magnesium oxide is chemically and electrolytically remov... | 09/09/1997 |
| 5593566 | Electrolytic production process for magnesium and its alloys A process is disclosed for the electrolytic production of magnesium utilizing magnesium oxide and/or partially dehydrated magnesium chloride as a feedstock. An electrolyte containing magnesium chloride, potassium chloride and optionally sodium chloride is... | 01/14/1997 |
| 5565080 | Preparation of anhydrous magnesium chloride-containing melts from hydrated magnesium chloride In accordance with the present invention, there is now provided a process for the production an anhydrous magnesium chloride-containing melt or electrolyte containing very low levels of MgO, typically less than 0.2% by weight MgO, directly from hydrated m... | 10/15/1996 |
| 5500100 | Method for removing magnesium from aluminum-magnesium alloys with engineered scavenger compound A process of recovering magnesium from an aluminum-magnesium alloy using a two electrode cell, comprising: placing an engineered scavenger compound in an electrode basket of a two electrode cell; adjusting the temperature of a surrounding heating furnace to a ... | 03/19/1996 |
| 5439563 | Electrolytic production of magnesium metal with feed containing magnesium chloride ammoniates A process for electrolytically producing magnesium metal from MgCl2 dissolved in an electrolyte, by conversion to the product metal and chlorine gas, wherein the MgCl2 content of the electrolyte is replenished by supplying thereto a ... | 08/08/1995 |
| 5415742 | Process and apparatus for low temperature electrolysis of oxides A process for electrowinning metal in a low temperature melt is disclosed. The process utilizes an inert anode for the production of metal such as aluminum using low surface area anodes at high current densities.... | 05/16/1995 |
| 5395487 | Electrolytic extraction of magnesium from a magnesium-containing aluminum alloy An electrolytic process is provided for extracting magnesium metal from magnesium-containing aluminum alloys, in which magnesium oxide which is inherently and undesirably formed during electrolytic demagging of an aluminum alloy is destroyed in situ, and ... | 03/07/1995 |
| 5279716 | Method for producing magnesium metal from magnesium oxide A method is provided for the electrolytic production of magnesium metal. The method is highly economical in that the method permits the use of magnesium oxide as a feed stock for the electrolytic process. The method uses a rare earth chloride as a constit... | 01/18/1994 |
| 5198078 | Procedure for electrolyte production of magnesium A device for electrolytic production of elemental magnesium by electrolysis of magnesium chloride in a molten salt bath, including a magnesium transfer trough comprising a semicircular section of a standard steel pipe mounted straddling the upper edge of ... | 03/30/1993 |
| 5057194 | Salt-based melting process A continuous salt-based process is provided for melting and reclaiming aluminum from aluminum scrap containing impurities including heating a molten salt in a heat bay, mixing the heated salt with aluminum scrap or skim in a charge bay to form a molten ch... | 10/15/1991 |
| 4999092 | Transporting a liquid past a barrier The invention provides a method of transporting a liquid A past or around a barrier, by adding a solute S to liquid A on one side of the barrier and correspondingly removing solute S from liquid A on the other side of the barrier, the solute S being such ... | 03/12/1991 |
| 4800003 | Production of magnesium metal from magnesium containing materials A process for the production of Mg metal from impure Mg-containing materials is disclosed. The process comprises the steps of reacting a slurry of impure Mg-containing material with a hot HCl-containing gas stream to produce an impure MgCl2 slu... | 01/24/1989 |
| 4743347 | Production of pure MgCl2 solution suitable for the production of magnesium metal from an impure magnesite ore or concentrate A process for producing a substantially pure, concentrated MgCl2 solution suitable for subsequent molten salt electrolysis to magnesium metal from an impure magnesite ore or concentrate is disclosed. The process comprises the steps of calcining... | 05/10/1988 |
| 4560449 | Metal production by electrolysis of a molten electrolyte Electrolytic cells for production of Mg or other metal lighter than the molten electrolyte comprise electrode assemblies of anode 28, cathode 26 and intermediate bipolar electrodes 30 with substantially vertical regions 39 between them. The intermediate b... | 12/24/1985 |
| 4518426 | Process for electrolytic recovery of titanium metal sponge from its ore A process for producing titanium metal sponge within a closed cell system involving the electrical decomposition of molten magnesium chloride into magnesium metal and chlorine gas within a closed cell to form said magnesium metal as a molten layer upon sa... | 05/21/1985 |
| 4514269 | Metal production by electrolysis of a molten electrolyte A cell for producing magnesium or other metal by electrolysis of molten chloride or other electrolyte comprises at least one electrode assembly of an anode 24, at least one intermediate bipolar electrode 28, 30, 32, 34 and a cathode 26 defining generally ... | 04/30/1985 |
| 4487677 | Electrolytic recovery system for obtaining titanium metal from its ore An apparatus including a single electrolytic/reaction cell, for extraction of titanium sponge from rutile ore. Magnesium chloride is electrolytically separated into magnesium metal and chlorine gas within the cell. The chlorine gas produced is reacted wit... | 12/11/1984 |
| 4481085 | Apparatus and method for electrolysis of MgCl2 An apparatus for electrolysis of MgCl2, comprising an air-tightly sealed shell of metallic material, said shell exhibiting in horizontal cross section a rounded profile which comprises at four portions a curve selected from a quarter-circular a... | 11/06/1984 |
| 4468298 | Diffusion welded nonconsumable electrode assembly and use thereof for electrolytic production of metals and silicon A nonconsumable electrode assembly suitable for use in the production of metal by electrolytic reduction of a metal compound dissolved in a molten salt, the assembly comprising a metal conductor diffusion welded to a portion of a ceramic electrode body ha... | 08/28/1984 |
| 4468299 | Friction welded nonconsumable electrode assembly and use thereof for electrolytic production of metals and silicon A nonconsumable electrode assembly suitable for use in the production of metal by electrolytic reduction of a metal compound dissolved in a molten salt, the assembly comprising a metal conductor and a ceramic electrode body connected by a friction weld be... | 08/28/1984 |
| 4468300 | Nonconsumable electrode assembly and use thereof for the electrolytic production of metals and silicon A nonconsumable electrode assembly suitable for use in the production of metal by electrolytic reduction of a metal compound dissolved in a molten salt, the assembly comprising a metal conductor attached to a ceramic electrode body by a metal bond on a po... | 08/28/1984 |
| 4457811 | Process for producing elements from a fused bath using a metal strap and ceramic electrode body nonconsumable electrode assembly A nonconsumable electrode assembly suitable for use in the production of metal by electrolytic reduction of a metal compound dissolved in a molten salt, the assembly comprising a ceramic electrode body and a metal subassembly of a metal conductor rod and ... | 07/03/1984 |
| 4448654 | Process and anode for molten salt electrolysis An uncoated ceramic anode comprising titanium having a formal valence of +4; titanium having a formal valence of +3; and a dopant which prevents at least a portion of the titanium +3 from converting to titanium +4 when the ceramic anode is at operating ce... | 05/15/1984 |
| 4447300 | Electrode holder for use in fusion electrolysis An axially displaceable electrode holder for use in fusion electrolysis, for holding active parts of self-consuming or of slowly self-consuming material by a screw nipple or the like. The electrode holder can have a cooling means with an inflow channel an... | 05/08/1984 |
| 4420381 | Electrolytic method and cell for metal production In the production of magnesium by electrolysis of a fused salt the metal is collected over a body of the fused salt under a heavily insulated cover to reduce heat loss from the molten metal under a substantially non-oxidizing atmosphere. The electrolyte i... | 12/13/1983 |
| 4411748 | Anode and process for magnesium production An anode for use in the electrolytic production of magnesium comprises a graphite body having an essentially impermeable coating thereon of magnesium or magnesium-aluminum alloy.... | 10/25/1983 |
| 4405415 | Electrolytic refining of molten metal In a process for refining Al or Mg a stream of relatively impure molten metal is passed along one face of a grille separator having interstices of the order of 0.1-1 cm in width. The interstices are filled with a molten salt electrolyte adapted to transpo... | 09/20/1983 |
| 4401543 | Electrolytic cell for magnesium chloride An improved electrolytic cell for magnesium chloride which essentially comprises: at least one pairs of anode and cathode arranged with a respective principal face thereof in a substantial verticality, at least one bipolar intermediate electrode placed in a ro... | 08/30/1983 |
| 4334975 | Apparatus for electrolytic production of magnesium metal from its chloride The present invention provides an apparatus for electrolytic production of magnesium metal from its chloride, which apparatus essentially comprises at least one externally unwired electrode which is made of graphite alone or graphite-iron composite and is... | 06/15/1982 |
