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| Number | Title | Issue Date |
| 8133378 | Solid polycrystalline potassium ion conductor having a β″-AlOstructure, its production and the preparation of potassium metal using this potassium ion conductor A solid polycrystalline potassium ion conductor having a β″-Al2O3 structure, its production, and the preparation of potassium metal using this potassium ion conductor. ... | 03/13/2012 |
| 7361276 | Apparatus and method for osmotic membrane distillation A method of enhancing the concentration of a first inorganic compound in a first aqueous solution of a first process of a heavy chemical plant, the method comprising (a) feeding the first solution having the first compound at a first concentration and a first water ... | 04/22/2008 |
| 7108777 | Hydrogen-assisted electrolysis processes A process and electrolytic cell for reducing in an ionic alkali metal compound, the cell containing anode and cathode electrodes, by supplying an electrolyte containing the alkali metal compound to the cell, applying an electric voltage to the cell to reduce said al... | 09/19/2006 |
| 6994776 | Method and apparatus for low temperature annealing of metallization micro-structure in the production of a microelectronic device A method for filling recessed microstructures at a surface of a microelectronic workpiece, such as a semiconductor wafer, with metallization is set forth. In accordance with the method, a metal layer is deposited into the microstructures with a process, such as an e... | 02/07/2006 |
| 6911280 | Chemical protection of a lithium surface Disclosed are compositions and methods for alleviating the problem of reaction of lithium or other alkali or alkaline earth metals with incompatible processing and operating environments by creating a ionically conductive chemical protective layer on the lithium or ... | 06/28/2005 |
| 6787019 | Low temperature alkali metal electrolysis A low temperature electrolysis process that can be used for producing an alkali metal from an alkali metal halide is provided, which comprises electrolyzing an electrolyte composition comprising at least one alkali metal halide and a co-electrolyte comprising (a) a ... | 09/07/2004 |
| 6730210 | Low temperature alkali metal electrolysis A low temperature alkali metal electrolysis process is provided. The process comprises carrying out the electrolysis in the presence of a co-electrolyte and an alkali metal halide. The co-electrolyte comprises (1) a nitrogen-containing compound and optionally one or... | 05/04/2004 |
| 6669836 | Molten salt electrolysis of alkali metals An electrolysis process is provided which comprises carrying out the process in an electrolyte that comprises an alkali metal halide and a strontium halide. The process can be carried out at a current density in the range of from about 7 to about 10 kA/m | 12/30/2003 |
| 6409908 | Electrochemical production of alkali metal from an alkali metal amalgam In a process for producing an alkali metal from alkali metal amalgam by electrolysis using an alkali metal amalgam as anode, a solid electrolyte which conducts alkali metal ions and a liquid alkali metal as cathode, the alkali metal amalgam as anode is ke... | 06/25/2002 |
| 6368487 | Electrolytic cell for producing an alkali metal An electrolytic cell comprises an agitated, alkali metal amalgam-containing anode, an alkali metal ion-conducting solid electrolyte and a cathode, wherein the solid electrolyte and the cathode are separated from one another by a liquid electrolyte.... | 04/09/2002 |
| 6368486 | Low temperature alkali metal electrolysis A low temperature alkali metal electrolysis process for carrying out the electrolysis in the presence of a co-electrolyte and an alkali metal halide. The co-electrolyte comprises (1) a nitrogen-containing compound and optionally one ore more Group IB hali... | 04/09/2002 |
| 5853560 | Electrolytic magnesium production process using mixed chloride-fluoride electrolytes A method is disclosed for the production of magnesium in which a magnesium chloride (which may be partially dehydrated) and/or magnesium oxide-containing feedstock is reacted with an electrolyte consisting essentially of magnesium cations, lithium and/or ... | 12/29/1998 |
| 5744020 | Process for treatment of radioactive waste A process for treating a radioactive waste, includes drying a radioactive waste containing a radioactive substance(s) and a sodium compound(s), to convert it into a dried material, heating the dried material to convert it into a molten salt, and subjectin... | 04/28/1998 |
| 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 |
| 5417815 | Liquid surface skimmer apparatus for molten lithium and method This invention relates to an apparatus for separating two fluids having different specific gravities. The invention also relates to a method for using the separating apparatus of the present invention. This invention particularly relates to the skimming o... | 05/23/1995 |
| 5378325 | Process for low temperature electrolysis of metals in a chloride salt bath A low temperature salt bath for the electrolysis of metal oxides to produce the corresponding metal. The bath comprises a first salt, comprised of at least one fluoride salt, and a second salt, comprised of at least one chloride salt. The fluoride salt in... | 01/03/1995 |
| 5324394 | Recovery of Li from alloys of Al- Li and Li- Al using engineered scavenger compounds A method of producing lithium of high purity from lithium aluminum alloys using an engineered scavenger compound, comprising: I) preparing an engineered scavenger compound by: a) mixing and heating compounds of TiO2 and Li2CO3 at a temperature sufficient to dr... | 06/28/1994 |
| 5071523 | Two stage lithium transport process The present invention provides a process for purifying aluminum and lithium including recovering aluminum and lithium through layered electrolysis through a lithium transport cell to form purified lithium metal and residual aluminum and purifying the resi... | 12/10/1991 |
| 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 |
| 4988417 | Production of lithium by direct electrolysis of lithium carbonate A method of electrolytically producing lithium includes providing an electrolytic cell having an anode compartment and a cathode compartment. The compartments are separated by a porous electrically nonconductive membrane which will be wetted by the electr... | 01/29/1991 |
| 4973390 | Process and apparatus for producing lithium from aluminum-lithium alloy scrap in a three-layered lithium transport cell The present invention provides an apparatus for producing lithium from an aluminum-lithium alloy scrap comprising (a) a dryer for removing moisture from solid aluminum-lithium alloy; (b) a reservoir for heating and holding molten aluminum-lithium alloy; (... | 11/27/1990 |
| 4851089 | Process for the electrolytic production of metals A process for the production of metal Me and/or an alloy containing metal from a complex metal halide Am MeXo by electroylsis in a cell comprising an anode, a liquid metal cathode comprising one or more metals M and a liquid electro... | 07/25/1989 |
| 4849072 | Electrolytic process for recovering lithium from aluminum-lithium alloy scrap A recovery process is disclosed for reclaiming the lithium content from aluminum-lithium alloy scrap including establishing a three-layered electrolytic cell comprising a most dense lowest layer of molten aluminum-lithium alloy, a middle layer of molten s... | 07/18/1989 |
| 4804448 | Apparatus for simultaneous generation of alkali metal species and oxygen gas A process and apparatus for electrochemically separating alkali oxides to simultaneously generate oxygen gas and liquid alkali metals in a high temperature electrolytic cell is provided. The high temperature electrolytic cell comprises a cathode in contac... | 02/14/1989 |
| 4780186 | Lithium transport cell process The present invention provides a process for recovering lithium from an aluminum-lithium alloy scrap including heating a lithium chloride-potassium chloride-lithium fluoride salt mixture in a separate bath melter vessel to form a molten salt bath reservoi... | 10/25/1988 |
| 4740279 | Process and apparatus for producing high-purity lithium metal by fused-salt electrolysis This invention relates to a process of producing lithium metal by the electrolysis of fused mixed salts comprising electrolyzing fused mixed salts consisting of lithium chloride and potassium chloride in a diaphragmless electrolytic cell, withdrawing molt... | 04/26/1988 |
| 4724055 | Continuous production of lithium metal by electrolysis of lithium chloride Lithium metal is continuously prepared, in specially adapted electrolytic cell, by (i) continuously electrolyzing a mixture of molten salts including lithium chloride, said mixture comprising the medium of electrolysis, (ii) continuously withdrawing admix... | 02/09/1988 |
| 4617098 | Continuous electrolysis of lithium chloride into lithium metal Lithium metal is continuously prepared by, in a specially adapted electrolytic cell, (i) continuously electrolyzing the lithium chloride which comprises a mixture of molten salts, which mixture comprises the medium of electrolysis and such medium of elect... | 10/14/1986 |
| 4614569 | Molten salt electrowinning method, anode and manufacture thereof A method of electrowinning a metal such as aluminum from e.g. a cryolite based melt containing alumina employs an enode having as its operative surface a protective coating which is maintained by the presence of constituents of the coating dissolved in th... | 09/30/1986 |
| 4584068 | Device and process for the fused-salt electrolysis of alkali metal halides A device for the fused salt electrolysis of alkali metal halides by the Downs principle becomes operable on an expanded scale, by a process ensuring a favorable thermal economy of the cell, through the incorporation of a double bottom, an improved housing... | 04/22/1986 |
| 4533442 | Lithium metal/alloy recovery from multi-component molten salt An electrolytic process is provided for the recovery of lithium values from a molten salt bath containing MgCl2, CaCl2, NaCl, KCl and LiCl. The salt composition in the molten state is subjected to the sequential depletion by electrol... | 08/06/1985 |
| 4455202 | Electrolytic production of lithium metal Process for producing lithium by electroreduction of a lithium compound dispersed in a fused salt electrolyte and deposition of said electroreduced lithium in a liquid metal cathode from which said lithium is recovered.... | 06/19/1984 |
| 4405416 | Molten salt lithium cells Lithium-based cells are promising for applications such as electric vehicles and load-leveling for power plants since lithium is very electropositive and light weight. One type of lithium-based cell utilizes a molten salt electrolyte and is operated in th... | 09/20/1983 |
| 4187155 | Molten salt electrolysis A novel method of molten salt electrolysis and novel electrolytic cells for molten salt electrolysis wherein the anodes for the electrolysis are comprised of a self-sustaining matrix of sintered powders of at least one oxycompound such as oxides, multiple... | 02/05/1980 |
| 4156635 | Electrolytic method for the production of lithium using a lithium-amalgam electrode A method for recovering lithium from its molten amalgam by electrolysis of the amalgam in an electrolytic cell containing as a molten electrolyte a fused-salt consisting essentially of a mixture of two or more alkali metal halides, preferably alkali metal... | 05/29/1979 |
| 4133728 | Electrolytic cell with switching means An electrolytic cell is provided for the electrochemical separation of selected metals from electrodissociatable compounds thereof in the molten state utilizing as electrode separator a plurality of solid electrolyte tubes which, under the influence of an... | 01/09/1979 |
| 4092228 | Electrolytic cell The operating characteristics of a Downs-type electrolytic cell are improved by incorporating a sealed weir between the riser/cooler and the molten metal receiver and by providing means for venting inert gas from the receiver through the vapor space of th... | 05/30/1978 |
| 3962064 | Electrolyzer and a method for the production of readily oxydizable metals in a state of high purity A readily oxidizable metal such as lithium formed along a cathode is collected in an electrolytic tank within a collecting chamber, the level of electrolyte is caused to rise to a predetermined top level at which the lithium leaves the collecting chamber ... | 06/08/1976 |
