| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 205367000 | Single metal produced | 65 |
| 20090211916 | Method and apparatus for producing metal by electrolysis of molton salt - A process for production of a metal includes a step of filling a metal chloride in an electrolysis vessel having positive and negative electrodes, a step of heating and fusing the metal chloride to make an electrolytic bath, and a step of electrolyzing the electrolytic bath to deposit metal on the negative electrode in a solid state. In addition, in an apparatus for production of a metal in which a metal chloride is filled in an electrolysis vessel having positive and negative electrodes, the metal chloride is heated and molten to make an electrolytic bath and the electrolytic bath is electrolyzed to deposit the metal on the negative electrode in a solid state, the electrolytic bath is divided into an electrolysis chamber and a dissolution chamber by a dividing wall, the positive electrode is arranged in the electrolysis chamber, the negative electrode is arranged to enable orbital movement in a circle through the electrolysis chamber and dissolution chamber, and the metal deposited on the negative electrode in the electrolysis chamber is separated and recovered in the dissolution chamber. | 08-27-2009 |
| 20100200420 | CONTROL OF BY-PASS CURRENT IN MULTI-POLAR LIGHT METAL REDUCTION CELLS - The invention relates to a multi-polar reduction cell for production of a light metal by electrolysis. The cell has an anode, a cathode, and at least one current-conducting multi-polar electrode interposed between the anode and the cathode. The cell has a molten electrolyte containing a metal salt to be electrolyzed held within the cell and preferably has means to maintain an upper surface of the electrolyte at a predetermined level within the cell. The level is preferably maintained above the upper end of the multi-polar electrode(s), at least in use of the cell. The multi-polar electrode has an electrically insulating surface at its upper end that minimizes or eliminates by-pass current between the anode and cathode when the cell is operated. The invention also relates to the method of minimizing or eliminating the by-pass current. | 08-12-2010 |
| 20100294670 | SYNTHESIS OF BORON USING MOLTEN SALT ELECTROLYSIS - The invention relates generally to elemental boron, particularly to elemental boron having a high purity level and to a method of recovering elemental boron by the electrolysis of a molten boron-containing electrolyte. | 11-25-2010 |
| 20140008238 | Process for Recovering Valuable Metals from Precious metal Smelting Slag - The present invention provides a process for recovering valuable metals from precious metal smelting slag, comprising: smelting the precious metal smelting slag and a flux in a top-blown rotary furnace to produce a lead-bismuth alloy, wherein the precious metal smelting slag comprises Au, Ag, Bi and Pb; electrolyzing the lead-bismuth alloy at a current density ranging from 60 to 110 A/m2 to obtain lead cathode and lead anode slime; refining the lead anode slime to produce bismuth and silver-zinc crust, and extracting gold and silver separately from the silver-zinc crust. Through utilizing a top-blown rotary furnace as the smelting apparatus and adjusting the ratio of the flux, the present invention enriches the valuable metals gold, silver, bismuth, lead or the like to lead-bismuth alloy, ensures lower contents of gold, silver, bismuth and lead in the reducing slag and thereby increases the comprehensive recovery rates of gold, silver, bismuth and lead from the precious metal smelting slag. | 01-09-2014 |
| 20140262807 | SYSTEMS AND METHODS OF PROTECTING ELECTROLYSIS CELL SIDEWALLS - A system is provided including an electrolysis cell configured to retain a molten electrolyte bath, the bath including at least one bath component, the electrolysis cell including: a bottom, and a sidewall consisting essentially of the at least one bath component; and a feeder system, configured to provide a feed material including the least one bath component to the molten electrolyte bath such that the at least one bath component is within 2% of saturation, wherein, via the feed material, the sidewall is stable in the molten electrolyte bath. | 09-18-2014 |
| 20140262808 | SYSTEMS AND METHODS OF PROTECTING ELECTROLYSIS CELLS - Broadly, the present disclosure relates to sidewall features (e.g. inner sidewall or hot face) of an electrolysis cell, which protect the sidewall from the electrolytic bath while the cell is in operation (e.g. producing metal in the electrolytic cell). | 09-18-2014 |
| 20160068980 | SYSTEMS AND METHODS OF PROTECTING ELECTROLYSIS CELL SIDEWALLS - Broadly, the present disclosure relates to sidewall features (e.g. inner sidewall or hot face) of an electrolysis cell, which protect the sidewall from the electrolytic bath while the cell is in operation (e.g. producing metal in the electrolytic cell). | 03-10-2016 |
| 20160090658 | THERMAL ELECTROLYTIC PRODUCTION - Systems, methods, and other embodiments associated with thermal electrolytic production. According to one embodiment, a system includes a tower having an active reflux evaporator and a condenser system. The active reflux evaporator having a distributor pump assembly and an absorber. The distributor pump assembly pumps a heat pipe liquid metal to a distributor. The absorber receives the liquid metal from the distributor. The absorber facilitates evaporation of the liquid metal to form an evaporated metal. The condenser system includes a thermal load and a liquid pump assembly. The thermal load condenses the evaporated metal back to the liquid metal. The liquid pump assembly actively pumps the liquid metal to the distributor pump assembly. | 03-31-2016 |
| 205368000 | Rare earth metal (At. No. 21, 39 or 57-71) | 3 |
| 20100314260 | PROCESS FOR PRODUCING RARE METAL AND PRODUCTION SYSTEM THEREOF - According to one embodiment, a process for producing rare metals includes the steps of: electrolyzing an electrolytic solution to extract a Re oxide at a cathode; recovering the Re oxide, and electrolyzing the Re oxide in a molten salt electrolyte to extract metallic Re; recovering a Nd containing residue solution; treating the Nd containing residue solution to produce Nd oxide; electrolyzing the Nd oxide in a molten salt electrolyte to extract metallic Nd; recovering a Dy containing residue solution; treating the Dy containing residue solution to produce Dy oxide; and electrolyzing the Dy oxide in a molten salt electrolyte to extract metallic Dy. | 12-16-2010 |
| 20120292198 | METHODS AND APPARATUS FOR PROCESSING OF RARE EARTH METAL ORE - In one aspect, the present invention is directed to methods for extracting rare earth metals from ores comprising reduction of rare earth metal oxyfluorides. In another aspect, the invention relates to an apparatus for extracting rare earth metals from ores comprising reduction of rare earth metal oxyfluorides. The methods and apparatuses described herein generate rare earth metals from ores with reduced requisite pre-removal of metal oxides found as natural impurities in ores. | 11-22-2012 |
| 20130001096 | PROCESS FOR PRODUCING RARE METAL - According to one embodiment, a process for producing rare metals includes the steps of: recovering a first-residue solution through a primary target metal extracted by leaching a mineral resource; extracting a perrhenic acid ion contained in the first-residue solution with at least one of an anion exchange resin and a first-organic solvent; back extracting the perrhenic acid ion contained in the anion exchange resin or the first-organic solvent to a first-eluant; and electrolyzing the back extracted first-eluant to collect a rhenium at a cathode. | 01-03-2013 |
| 205369000 | Lead, zinc, or cadmium | 2 |
| 20090321273 | Method and an electrolysis cell for production of a metal from a molten chloride - The present method relates to a method and a cell for electrolytic production of zinc from a salt melt comprising zinc chloride. The cell has at least one electrolysis chamber ( | 12-31-2009 |
| 20120261269 | PROCESS FOR PRODUCTION OF POLYSILICON AND SILICON TETRACHLORIDE - A process for production of polysilicon and silicon tetrachloride is provided in which a raw material that is supplied stably and is available at low cost can be used, chlorination reaction can be smoothly promoted, impurities generated after chlorination reaction can be controlled, and production efficiency is superior in a polysilicon producing step. The process includes a step of chlorination in which a granulated body consisting of silicon dioxide and carbon-containing material is chlorinated to generate silicon tetrachloride, a step of reduction in which silicon tetrachloride is reduced by a reducing metal to generate polysilicon, and a step of electrolysis in which chloride of the reducing metal by-produced in the reduction step is molten salt-electrolyzed to generate the reducing metal and chlorine gas. In the process, chlorine gas is supplied to the silicon dioxide and the carbon-containing material in the presence of oxygen gas, and these are reacted in the chlorination step, the reducing metal generated in the electrolysis step is reused in the reduction step as a reducing agent of silicon tetrachloride, and the chlorine gas generated in the electrolysis step is reused in the chlorination step. | 10-18-2012 |
| 205370000 | Iron, cobalt, nickel, or manganese | 1 |
| 20130228469 | PRODUCTION METHOD FOR METAL MICROPARTICLE - Provided is a method for producing fine metal particles, wherein metal oxide powders can be used as a source of fine metal particles, and a method for producing fine metal particles can be provided avoiding the contamination of the molten salt electrolyte bath and the produced fine metal particles. A method for producing fine metal particles ( | 09-05-2013 |
| 205371000 | Vanadium, niobium, tantalum, chromium, molybdenum, or tungsten (V, Nb, Ta, Cr, Mo, or W) | 1 |
| 20090000955 | Oxygen-Producing Inert Anodes for Som Process - An electrolysis system for generating a metal and molecular oxygen includes a container for receiving a metal oxide containing a metallic species to be extracted, a cathode positioned to contact a metal oxide housed within the container; an oxygen-ion-conducting membrane positioned to contact a metal oxide housed within the container; an anode in contact with the oxygen-ion-conducting membrane and spaced apart from a metal oxide housed within the container, said anode selected from the group consisting of liquid metal silver, oxygen stable electronic oxides, oxygen stable crucible cermets, and stabilized zirconia composites with oxygen stable electronic oxides. | 01-01-2009 |
| 205372000 | Aluminum | 38 |
| 20080202939 | Process For the Electrolysis of Aluminiumsulfide - Process for the electrolysis of Al | 08-28-2008 |
| 20090114547 | Aluminium Electrowinning Cell with Enhanced Crust - A cell for the electrowinning of aluminium has a cavity for containing electrolyte ( | 05-07-2009 |
| 20100155259 | Process for online power cut out of an aluminum reduction cell - A process for online cut out of an aluminum reduction cell (pot) including the steps of leveling of the side beams of the reduction cell to around 150 mm; punching holes on both sides of the pot to ensure that the bath does not get overflow and ensure the dipping of the anodes through these punch holes; blowing air thoroughly all around the insulated shorted joints of all the risers to clean the joints from dust and large chunks of bath; applying lubricating oil to the shorted joint bolts to conform proper movement of nuts; breaking the side crust of all the four corner anodes; tapping the bath with at least one ladle; lowering the anodes such that there is no liquid overflow over the deck plate onto the catwalk; lowering of the beam by around 70 mm to 100 mm until the voltage falls below around 1.0 V-1.5 V at around 320 kA; loosening all riser bolts of the shorted joint of all the five risers using a pneumatic wrench after confirming that the anodes are dipped into the metal; removing insulated insert plates from the shorted anode riser joints and retightening all the five riser bolts using a pneumatic wrench and then taking the pot offline. | 06-24-2010 |
| 20110024304 | COMPOSITION FOR MAKING WETTABLE CATHODE IN ALUMINUM SMELTING - Compositions for making wettable cathodes to be used in aluminum electrolysis cells are disclosed. The compositions generally include titanium diboride (TiB | 02-03-2011 |
| 20110031129 | Aluminium electrowinning cells with metal-based anodes - A cell for the electrowinning of aluminium comprises a metal-based anode ( | 02-10-2011 |
| 20110100834 | High stability flow-through non-carbon anodes for aluminium electrowinning - A cell for the electrowinning of aluminium from alumina dissolved in a fluoride-containing molten electrolyte, comprises a non-carbon metal-based anode having an electrically conductive metallic structure. This anode structure comprises an outer part with an electrochemically active anode surface on which, during electrolysis, oxygen is anodically evolved, and which is suspended in the electrolyte substantially parallel to a facing cathode. The anode structure has one or more flow-through openings extending from the active anode surface through the metallic structure, the flow-through opening(s) being arranged for guiding a circulation of electrolyte driven by the fast escape of anodically evolved oxygen. The outer part of the anode comprises a layer that contains predominantly cobalt oxide CoO to enhance the stability of the anode. | 05-05-2011 |
| 20130032486 | APPARATUS AND METHOD FOR IMPROVING MAGNETO-HYDRODYNAMICS STABILITY AND REDUCING ENERGY CONSUMPTION FOR ALUMINUM REDUCTION CELLS - An apparatus and method for smelting has a smelting pot for containing electrolyte, alumina and a layer of liquid aluminum. A wall in the form of one or more TiB | 02-07-2013 |
| 20130292259 | LARGE SCALE GRID ENERGY STORAGE BASED ON ALUMINUM TECHNOLOGY - Grid energy storage is very challenging due to its large scale, required quick response, versatility, round trip efficiency, and new system infrastructure. However, the benefit is also huge because it would enable utilisation of intermittent renewable energy, leverage load, and allow energy management in hours/diurnal to seconds/minutes. A new invention is described to store up to 4-6% the entire grid energy by aluminum production, while returning its baseload back to the grid by idling aluminum smelter cells. The round trip efficiency will be close to 100%; switching between storage and load release can be instantaneous. | 11-07-2013 |
| 20140131214 | LOW-MOLECULAR-RATIO CRYOLITE FOR ALUMINIUM ELECTROLYTIC INDUSTRY AND METHOD FOR PREPARING THE SAME - The disclosure provides low-molecular-ratio cryolite for aluminum electrolytic industry, which consists of potassium cryolite and sodium cryolite with a mole ratio of 1:1˜1:3, wherein the molecular formula of the potassium cryolite is mKF.AlF | 05-15-2014 |
| 20140131215 | ELECTROLYTE SUPPLEMENT SYSTEM IN ALUMINIUM ELECTROLYSIS PROCESS AND METHOD FOR PREPARING THE SAME - The disclosure provides an electrolyte supplement system in an aluminium electrolysis process, which includes low-molecular-ratio cryolite, wherein the low-molecular-ratio cryolite is selected from mKF.AlF | 05-15-2014 |
| 20140131216 | POTASSIUM CRYOLITE FOR ALUMINUM ELECTROLYSIS INDUSTRY AND PREPARATION METHOD THEREOF - The invention provides a potassium cryolite for aluminum electrolysis industry, which has a molecular formula: mKF.AlF | 05-15-2014 |
| 20140138254 | SODIUM CRYOLITE FOR ALUMINUM ELECTROLYSIS INDUSTRY AND PREPARATION METHOD THEREOF - The invention provides a sodium cryolite for aluminum electrolysis industry, which has a molecular formula: mNaF.AlF | 05-22-2014 |
| 20140202873 | SYSTEM AND METHOD FOR CONTROL PF LAYER FORMATION IN AN ALUMINUM ELECTROLYSIS CELL - An objective of the present invention is to provide a method and system for use for control of layer formation over an extended area in an aluminium electrolysis cell and exploitation of heat. A second object of the invention is to provide a method and system for use for control of layer formation suited for retrofitting to an aluminium electrolysis cell and maintainability during operations of the cell. | 07-24-2014 |
| 20140231268 | COMPACT SERVICE MODULE AND USE THEREOF IN A PLANT FOR PRODUCING ALUMINUM BY ELECTROLYSIS - A pot tending module for an aluminum production plant comprising a frame and a rotary part including a hopper mounted on said frame so as to pivot about a substantially vertical axis, said rotary part being equipped with at least one tool mounted on a telescopic arm, said pot tending module comprising a first bearing structure to carry all of said rotary part mounted on said frame so as to be pivotable about a substantially vertical axis, a fixed member of said telescopic arm being mounted on a second bearing structure of said rotary art through attachment means fixed to an attachment part of said fixed member placed between the ends of said fixed member. A pot tending machine, a port tending assembly comprising the pot tending module described above, and use of said pot tending assembly. | 08-21-2014 |
| 20150060295 | ELECTROCHEMICAL CELL FOR ALUMINUM PRODUCTION USING CARBON MONOXIDE - The present technology discloses a method for producing aluminum from alumina in an electrolytic cell through the use of carbon monoxide as a partial or total reactant with aluminum oxide. The present technology also discloses the structure of an electrolytic cell configured to house this reaction. | 03-05-2015 |
| 205374000 | Utilizing specified current distributing means or method other than wire connecting means | 2 |
| 20140034507 | INERT ELECTRODES WITH LOW VOLTAGE DROP AND METHODS OF MAKING THE SAME - An electrolytic cell anode, including an encasing conductive material configured to encase a dense conductive material and define the electrolytic cell anode, wherein the dense conductive material has an electrical conductivity greater than that of the encasing conductive material. | 02-06-2014 |
| 20140069820 | CURRENT COLLECTOR BAR APPARATUS, SYSTEM, AND METHOD OF USING THE SAME - The instant disclosure provides an electrolysis cell, which includes: an anode; a cathode block; and a current collector bar configured to be at least partially disposed adjacent to and in electrical communication with the cathode block, wherein the bar comprises: at least one sidewall; an inner void enclosed by the sidewall; and an expandable material retained in the inner void via the at least one sidewall, wherein the expandable material is configured to exert pressure on the wall of the inner void while the bar is at operating temperature, such that the bar is conformed to the cathode block. | 03-13-2014 |
| 205375000 | Utilizing specified distance between cathode and anode | 1 |
| 20100294671 | Aluminium collection in electrowinning cells - A cell for the electrowinning of aluminium comprises an electrolysis chamber ( | 11-25-2010 |
| 205377000 | Utilizing membrane or diaphragm between electrodes | 1 |
| 20160376719 | CLEAN, EFFICIENT METAL ELECTROLYSIS VIA SOM ANODES - In some aspects, the invention relates to apparatuses for recovering a metal comprising providing a sealed container for holding a molten electrolyte, the container having an interior surface; a liner disposed along at least a portion of the interior container surface; a cathode disposed to be in electrical contact with the molten electrolyte when the molten electrolyte is disposed in the container; a solid oxygen ion-conducting membrane disposed to be in ion-conducting contact with the electrolyte when the molten electrolyte is disposed in the container; an anode in contact with the solid oxygen ion-conducting membrane, the solid oxygen ion-conducting membrane electrically separating the anode from the molten electrolyte; and a power source for generating an electric potential between the anode and the cathode. | 12-29-2016 |
| 205379000 | Utilizing nonmetal cell lining other than inorganic carbon or graphite | 2 |
| 20130199938 | SYSTEM AND METHOD FOR CONTROL OF SIDE LAYER FORMATION IN AN ALUMINIUM ELECTROLYSIS CELL - A system and method is provided for control of layer formation by use of sidelining provided with heat tube. | 08-08-2013 |
| 20140174943 | SYSTEM AND METHOD FOR CONTROL OF LAYER FORMATION IN AN ALUMINUM ELECTROLYSIS CELL - And objective of the present invention is to provide an improved method and system for use for control of layer formation in an aluminium electrolysis cell and exploitation of the heat. The present invention attains the above-described objective by a reordering of the fundamental structure of a Hall-Héroult cell, providing two alternatives, eliminating the need for thermal insulation. In a first embodiment the ordering from the inside to the outside is: Electrolyte-sidelining-heat tubes-steel shell. In a second embodiment the ordering from the inside to the outside is: Electrolyte-sidelining-steel shell-heat tubes. | 06-26-2014 |
| 205380000 | Utilizing specified electrode other than consumable electrode (e.g., cylindrical, tapered, etc.) | 6 |
| 20150292096 | SYSTEM AND METHODS USEFUL IN CONTROLLING OPERATIONS OF METAL ELECTROLYSIS CELLS - An analysis system for determining one or more operating conditions of a metal electrolysis cell and for facilitating a response is provided. The analysis system comprises a bath probe electrically interconnected to a portable computing device. The bath probe generates signals associated with temperature measurements produced from thermal communication with an electrolysis cell bath. The portable computing device may receive these signals and generate data based thereon. The data may be transformed into operating condition information relating to the electrolysis cell. | 10-15-2015 |
| 205384000 | Coated electrode | 3 |
| 20080237058 | Method for Producing Aluminum and Method for Producing a Gas-Tight Electrode for Carbothermic Reduction Furnace - A method for producing aluminum and a method for producing a graphite electrode for a carbothermic reduction furnace, in which aluminum is produced by carbothermic reduction of alumina, render the graphite electrode substantially gas-impermeable. The graphite electrode is consumed during furnace operation and electrode columns connected by graphite pins are fed continuously fed in from the top into the furnace. The coating of the electrode withstands a temperature of up to 300° C. and more over a period of several hours without oxidation. Since the coating enters the furnace compartment at least partially, it is configured so that it will not contaminate the hot melt. That is, the chemistry of the coating materials is similar to the ingredients of the overall reaction or, at a minimum, the amount of foreign elements is very low. The coating is provided so that it does not increase the electrical contact resistance at the connection between the electrode columns and the electrode holding clamps. Where the electrode inlet area is cooled by water, the coating is insoluble in water. | 10-02-2008 |
| 20090166215 | Aluminum production cell - Low temperature cell for electrolytic production of aluminum. | 07-02-2009 |
| 20090250355 | METHOD FOR MAKING ANODES FOR ALUMINIUM PRODUCTION BY FUSED-SALT ELECTROLYSIS, RESULTING ANODES AND USE THEREOF - Method for manufacturing anodes used for the production of aluminium by fused bath electrolysis, said anodes comprising an anode stem made of a conducting metal and at least one block made of carbonaceous material called an anode block, said method including at least the following steps:
| 10-08-2009 |
| 205385000 | Specified electrode composition other than consumable inorganic carbon or graphite | 2 |
| 20090127126 | CURRENT BUSBAR - Current busbar for anode or cathode for use in production of aluminium from alumina in an electrolysis bath in an electrolysis cell, comprising ends or sections that during operation shall be within the electrode body are formed as horizontally oriented conical bodies and cylindrical or conical grooves with largest horizontal cross section dimension within said grooves, such that by sliding in correspondingly formed cooper rails on the external parts of the busbar, said bodies and rails are releasable joined. | 05-21-2009 |
| 20120222964 | COMPOSITION FOR MAKING WETTABLE CATHODE IN ALUMINUM SMELTING - Compositions for making wettable cathodes to be used in aluminum electrolysis cells are disclosed. The compositions generally include titanium diboride (TiB | 09-06-2012 |
| 205390000 | Involving specific process startup other than mere turn on | 1 |
| 20150136612 | DIRECT-CURRENT SHUNT PREHEATING START METHOD FOR AN INERT ELECTRODE ALUMINUM ELECTROLYSIS CELL - The invention discloses a direct-current shunt preheating start method for an inert electrode aluminum electrolysis cell, comprising: (1) forming multiple groups of direct-current shunt elements by using conductors with preset resistance values and geometric sizes; (2) laying in a hearth of the electrolysis cell electrical heating element groups of the same number as/a different number from electrode groups; (3) drying the hearth, smelting electrolyte and establishing a thermal balance and a hearth inner profile by using the electrical heating element groups according to a set heating curve or set steps; (4) changing the number of groups/a series or parallel connection state of the direct-current shunt elements; and (5) gradually replacing inert electrodes and gradually adjusting the number of the groups of/the series or parallel connection state of the shunt elements. By means of the present invention, the inert electrode aluminum electrolysis cell can be well preheated and the thermal balance can be established; in the inert electrode replacement process, stability of the cell voltage can further be ensured, so that the current passing through the inert electrodes in the cell is uniform; and series current is not affected by start of a single electrolysis cell, so that non-disturbance start is implemented. | 05-21-2015 |
| 205391000 | Collecting or controlling fumes or gases produced during synthesis | 2 |
| 20130199939 | RAW GAS COLLECTION SYSTEM - A raw gas collection system ( | 08-08-2013 |
| 20180023198 | Reduction Method And Electrolysis System For Electrochemical Carbon Dioxide Utilization | 01-25-2018 |
| 205394000 | Bath contains fluorine or bromine containing compound other than cryolite (Na3ALF6) | 7 |
| 20130092550 | LOW-MOLECULAR-RATIO CRYOLITE FOR ALUMINIUM ELECTROLYTIC INDUSTRY AND METHOD FOR PREPARING THE SAME - The disclosure provides low-molecular-ratio cryolite for aluminium electrolytic industry, which consists of potassium cryolite and sodium cryolite with a mole ratio of 1:1˜1:3, wherein the molecular formula of the potassium cryolite is mKF.AlF | 04-18-2013 |
| 20130092551 | ELECTROLYTE SUPPLEMENT SYSTEM IN ALUMINIUM ELECTROLYSIS PROCESS AND METHOD FOR PREPARING THE SAME - The disclosure provides an electrolyte supplement system in an aluminium electrolysis process, which includes low-molecular-ratio cryolite, wherein the low-molecular-ratio cryolite is selected from mKF.AlF | 04-18-2013 |
| 20130092552 | POTASSIUM CRYOLITE FOR ALUMINUM ELECTROLYSIS INDUSTRY AND PREPARATION METHOD THEREOF - The invention provides a potassium cryolite for aluminum electrolysis industry, which has a molecular formula: mKF.AlF | 04-18-2013 |
| 20130112570 | SODIUM CRYOLITE FOR ALUMINUM ELECTROLYSIS INDUSTRY AND PREPARATION METHOD THEREOF - The invention provides a sodium cryolite for aluminum electrolysis industry, which has a molecular formula: mNaF.AlF | 05-09-2013 |
| 20150122664 | ELECTROLYSIS TANK USED FOR ALUMINUM ELECTROLYSIS AND ELECTROLYSIS PROCESS USING THE ELECTROLYZER - An electrolytic cell for aluminum electrolysis includes a cell body, in which an anode and a cathode are arranged inside the cell body, the cell body is filled with an electrolyte, and at least a part of the anode is immersed in the electrolyte; the anode is arranged above the cell body, the cathode is arranged at the bottom of the electrolytic cell and is covered by aluminum liquid, the electrolyte is located between the anode and the cathode and covers the aluminum liquid; and an insulating layer is arranged on the inner sidewall of the cell body for isolating oxygen or the electrolyte from a carbon block. The anode contains Fe and Cu as primary components; and the electrolyte is composed of 30-38 wt % of NaF, 49-60 wt % of AlF | 05-07-2015 |
| 20150122665 | ELECTROLYTE USED FOR ALUMINUM ELECTROLYSIS AND ELECTROLYSIS PROCESS USING THE ELECTROLYTE - An electrolyte for aluminum electrolysis employs a pure fluoride salt system and includes the following components by mass percent: 20-29.9% of NaF, 60.1-66% of AlF | 05-07-2015 |
| 205395000 | Fluorine or bromine containing compound contains alkaline earth metal, beryllium, or magnesium (Ca, Sr, Ba, Ra, Be, or Mg) | 1 |
| 20160145753 | ELECTROLYTE FOR OBTAINING MELTS USING AN ALUMINUM ELECTROLYZER - The invention concerns non-ferrous metallurgy, in particular the composition of an electrolyte for electrically obtaining aluminum by the electrolysis of fluoride melts. The electrolyte proposed contains, in % by weight: sodium fluoride 26-43, potassium fluoride up to 12, lithium fluoride up to 5, calcium fluoride 2-6, alumina 2-6, aluminum fluoride and admixtures—the remainder. The technical result is to increase the solubility of alumina in the electrolyte at a temperature of 830-930° C. In the electrolyte being applied for, the carbon and inert electrode materials are not destroyed, and the use of special methods to purify the aluminum of melt components is not required. | 05-26-2016 |
| 205396000 | Utilizing specified process step to maintain bath temperature | 1 |
| 20140332400 | ALUMINIUM ELECTROLYSIS CELL COMPRISING SIDEWALL TEMPERATURE CONTROL SYSTEM - The invention provides method and system for cooling over a large area, suitable for use for control of layer formation over an extended area in an aluminium electrolysis cell and exploitation of heat. The objective is achieved by a manifold from which a plurality of hot end heat tubes extend, representing the hot end or ends, wherein the cold end or condenser can be provided inside the manifold or can extend outside the manifold. | 11-13-2014 |
| 205397000 | Titanium, zirconium, or hafnium (Ti, Zr, or Hf) | 6 |
| 20110108434 | METHOD OF PRODUCING METAL ZIRCONIUM - An object of the present invention is to provide a method of producing metal zirconium, the method having a fewer steps and a smaller amount of secondary wastes generated, wherein the metal zirconium is obtained from a zirconium compound containing hafnium. A method of producing metal zirconium according to the present invention includes: a separation step of separating a hafnium oxychloride from a first substance containing a zirconium oxychloride and a hafnium oxychloride to obtain a second substance having a higher content of the zirconium oxychloride; a calcination step of calcining the second substance to obtain a third substance containing at least any of a zirconium oxychloride and a zirconium oxide; and a direct reduction step of holding the third substance in a molten salt with the third substance brought into contact with a cathode and applying a voltage between the cathode and an anode to directly reduce the third substance to obtain metal zirconium. | 05-12-2011 |
| 20140144786 | Eco-Friendly Smelting Process for Reactor-Grade Zirconium Using Raw Ore Metal Reduction and Electrolytic Refining Integrated Process - The manufacturing method for high-purity Zirconium is characterized by self-propagating high temperature synthesis (SHS) of a raw material having zirconium raw ore containing ZrO | 05-29-2014 |
| 205398000 | Titanium | 4 |
| 20080217184 | Method and Apparatus for Producing Ti Through Reduction by Ca - An apparatus for producing Ti by Ca reduction by the invention includes a reaction tank retaining a molten salt in which a molten salt CaCl | 09-11-2008 |
| 20120152756 | TREATMENT OF TITANIUM ORES - A method of producing titanium, comprising providing an oxide of titanium having a level of impurities of at least 1.0 wt %, reacting the oxide of titanium to form a titanium oxycarbide; and electrolysing the titanium oxycarbide in an electrolyte, with the titanium oxycarbide configured as an anode; and recovering a refined titanium metal from a cathode in the electrolyte. | 06-21-2012 |
| 20130213819 | PROCESS FOR MANUFACTURING LOWER CHLORIDES OF TITANIUM - A process for preparation of lower chlorides of titanium is provided, in which titanium tetrachloride (TiCl4) is reduced using a reducing agent in at least one molten alkali metal salt at a temperature of about 300 to about 1400° C. to obtain a reduced mass containing lower chlorides of titanium. A process for preparation of titanium metal from the lower chlorides of titanium is also provided. | 08-22-2013 |
| 20140116888 | METHOD OF PRODUCING TITANIUM METAL WITH TITANIUM-CONTAINING MATERIAL - A method of producing titanium metal with titanium-containing material which includes mixing, pressing and drying the titanium-containing material with a carbonaceous reducing agent to obtain a resultant as a first anode. Using a metal or an alloy as a first cathode, and using an alkali metal chloride molten salt and/or an alkaline earth metal chloride molten salt as a first electrolyte to constitute a first electrolysis system, to perform pre-electrolysis in an inert atmosphere to obtain a residual anode. After the residual anode is washed, molded and dried, using the residual anode as a second anode, using a metal or an alloy as a second cathode, using an alkali metal chloride molten salt and/or an alkaline earth metal chloride molten salt as a second electrolyte to constitute a second electrolysis system, to perform electrolysis in an inert atmosphere to obtain titanium metal powder. | 05-01-2014 |
| 205402000 | Alkaline earth metal, beryllium, or magnesium | 2 |
| 205404000 | Magnesium | 2 |
| 20110079517 | METHOD AND APPARATUS FOR RECYCLING HIGH-VAPOR PRESSURE, LOW-ELECTRONEGATIVITY METALS - Recycling methods and apparatus produce elements of high purity from diverse feedstock materials melted in an electronically conductive liquid. Distinct anodes are used in respective circuits configured for electrorefining and electrowinning. The electrorefining circuit is operable to produce an element in a gaseous state. The electrowinning circuit includes a SOM anode, allowing feedstock materials incorporating significant oxide constituents to be recycled. The methods and apparatus are suitable for magnesium recycling. | 04-07-2011 |
| 20130032487 | Multipolar Magnesium Cell - Molten metal is continuously produced by electrolysis of a molten electrolyte which is denser than the metal in an electrolytic multipolar cell characterized by a high and stable current efficiency. Molten metal droplets are separated from the circulating electrolyte along a set of horizontal channels of gravity settlers disposed between the electrolysis chamber and the metal collecting chamber. Thereafter the metal rises to and floats on the surface of the electrolyte in the metal collection chamber, is conveyed to a metal collecting reservoir immersed in the electrolyte and periodically removed to maintain the cell in continuous operation. The coalescence of the metal droplets is enhanced by sealing the cell to prevent ingress of air into the chlorine room and into the front compartment. The sealing is obtained by lowering the joint between the covers and the cell walls to levels close to the electrolyte level and by using large impervious ceramic tiles in the lowered joint, in the barrier wall between the chlorine room and the front compartment and as a cladding of the walls of the cover of the electrolysis chamber and by cladding the exposed graphite surfaces with a gas barrier foil. The barrier wall and other consumable components are removable without emptying the cell, for an increased campaign life. Surplus heat is controllably and safely extracted from the electrolyte in a recoverable way by a set of evaporative heat extraction devices immersed in the electrolyte across the circulating stream. | 02-07-2013 |
| 205406000 | Alkali metal (Li, Na, K, Rb, Cs, or Fr) | 4 |
| 20090090638 | Processes and reactors for alkali metal production - Electrochemical processes and apparatus for obtaining metals from metal salts, including for separating alkali metal and alcohols from alkali metal alkoxide compounds, are disclosed. Aqueous solutions of metal alkoxides or metal carbonates are converted to metals by electrochemical processes which may also be integrated into processes for the production of borohydrides, such as sodium borohydride. | 04-09-2009 |
| 205407000 | Lithium, sodium, or potassium | 3 |
| 20100051470 | PROCESS FOR PRODUCING METALLIC LITHIUM - Provided is a safe and efficient method for producing lithium metal which facilitates efficient production of anhydrous lithium chloride without corrosion of the system materials by chlorine gas or molten lithium carbonate, and which allows production of lithium metal by molten salt electrolysis of the produced anhydrous lithium chloride as a raw material. The method includes the steps of (A) contacting and reacting lithium carbonate and chlorine gas in a dry process to produce anhydrous lithium chloride, and (B) subjecting the raw material for electrolysis containing the anhydrous lithium chloride to molten salt electrolysis under such conditions as to produce lithium metal, wherein the chlorine gas generated by the molten salt electrolysis in step (B) is used as the chlorine gas in step (A) to continuously perform steps (A) and (B). | 03-04-2010 |
| 20120145558 | SOLID POLYCRYSTALLINE POTASSIUM ION CONDUCTOR HAVING A BETA''-Al2O3 STRUCTURE, ITS PRODUCTION AND THE PREPARATION OF POTASSIUM METAL USING THIS POTASSIUM ION CONDUCTOR - A method is provide for preparing potassium metal which comprises embedding a polycrystalline alkali metal β″-Al | 06-14-2012 |
| 20130001097 | PROCESS FOR PRODUCING METALLIC LITHIUM - Provided is a safe and efficient method for producing lithium metal which facilitates efficient production of anhydrous lithium chloride without corrosion of the system materials by chlorine gas or molten lithium carbonate, and which allows production of lithium metal by molten salt electrolysis of the produced anhydrous lithium chloride as a raw material. The method includes the steps of (A) contacting and reacting lithium carbonate and chlorine gas in a dry process to produce anhydrous lithium chloride, and (B) subjecting the raw material for electrolysis containing the anhydrous lithium chloride to molten salt electrolysis under such conditions as to produce lithium metal, wherein the chlorine gas generated by the molten salt electrolysis in step (B) is used as the chlorine gas in step (A) to continuously perform steps (A) and (B). | 01-03-2013 |
