Preparing Single Metal Patents (Class 205/560)
  • Patent number: 11566336
    Abstract: A method for transforming a crystal form of an electrolyte containing lithium for aluminum electrolysis includes the following steps: S1, pulverizing the electrolyte containing lithium; S2, uniformly mixing an additive with the electrolyte powder to obtain a mixture, wherein the additive is one or more selected from the group consisting of an oxide of an alkali metal other than lithium, an oxo acid salt of an alkali metal other than lithium, and a halide of an alkali metal other than lithium; a molar ratio of a sum of alkali metal fluoride contained in the electrolyte, alkali metal fluoride directly added from the additive, and alkali metal fluoride to which the additive is converted under the high-temperature calcination condition in the mixture to aluminum fluoride is greater than 3; S3, calcining the mixture at a high temperature.
    Type: Grant
    Filed: May 17, 2018
    Date of Patent: January 31, 2023
    Inventors: Zhaowen Wang, Wenju Tao, Youjian Yang, Bingliang Gao, Fengguo Liu
  • Patent number: 11486048
    Abstract: The present invention pertains to a method for electrolytic reduction of feedstock elements, made from feedstock, in a melt. In addition, the present invention relates to an apparatus for electrolytic reduction of feedstock elements, made from feedstock, and can be used for the reduction of oxides of metals belonging to Groups 3-14 of the Periodic Table. The method is implemented using the apparatus that, according to the invention, comprises an electrolyzer bath; an electrolytic cell; an electrolyzer bath insert plate; a cover with evolved gas outlets. Moreover, the electrolytic cell contains at least one cathode chamber and two anode plates, which are vertically arranged relative to each other, at least one current source, independently connected to the cathode chamber and one or two anode plates, and a device for horizontal reciprocating movement of the said electrolytic cell, which is found outside of the electrolyzer cover.
    Type: Grant
    Filed: February 6, 2020
    Date of Patent: November 1, 2022
    Assignees: Velta Holdings US Inc., RD Titan Group, TOV
    Inventors: Andriy Brodskyy, Viktor Troshchylo, Andrii Gonchar, Oleksandr Chukhmanov, Roman Romanov
  • Patent number: 11352706
    Abstract: An electrolyte flow regulator device and system that eliminates electrode edge strips, preferably cathodes edge strips, by obstructing the passage of the rich electrolyte to be electrodeposited and by the electrical isolation caused by the side walls of the device in the area where the edge strip was originally arranged, being able to obtain edges of an electrode without electrodeposition.
    Type: Grant
    Filed: September 13, 2019
    Date of Patent: June 7, 2022
    Inventor: Percy Danilo Yañez Castañeda
  • Patent number: 11230132
    Abstract: A method for directly writing metal traces on a wide range of substrate materials is disclosed. The method includes writing a pattern of particle-free metal-salt-based ink on the substrate followed by a plasma-based treatment to remove the non-metallic components of the ink and decompose its metal salt into pure metal. The ink is based on a multi-part solvent whose components differ in at least one of evaporation rate, surface tension, and viscosity, which improves the manner in which the ink is converted into its metal constituent via the plasma treatment. In some embodiments, a microplasma is used for post-treatment of the deposited ink, where the plasma properties are controlled to provide different material properties, such as porosity and effective resistivity, in different regions of the metal pattern.
    Type: Grant
    Filed: April 13, 2018
    Date of Patent: January 25, 2022
    Inventors: Christopher J. Miller, Souvik Ghosh, Yongkun Sui, R. Mohan Sankaran, Christian A. Zorman
  • Patent number: 11155898
    Abstract: The invention relates to a method for extracting rare earth elements contained in permanent magnets, which includes the steps of thermal treatment of the permanent magnet, crushing at the end of the thermal treatment in order to obtain particles with a size smaller than 2 mm, treatment by agitation of the particles in a solution containing an organic acid, and separation of the liquid phase from the solid phase.
    Type: Grant
    Filed: June 2, 2017
    Date of Patent: October 26, 2021
    Inventors: Alain Seron, Nour-Eddine Menad, Dominique Breeze, Marc Gamet
  • Patent number: 10538849
    Abstract: Provided is a method for efficiently separating and recovering tungsten and other valuable(s) from at least one valuable containing tungsten. The present invention relates to a method for recovering at least one valuable containing tungsten, comprising subjecting a raw material mixture comprising at least one valuable containing tungsten to electrolysis using an electrolytic solution containing at least one alcohol amine to dissolve tungsten in the electrolytic solution, electrodeposit a part of the valuable(s) onto a cathode used for the electrolysis and separate at least one valuable other than the valuable(s) electrodeposited onto the cathode as a residue in the electrolytic solution, and then separating and recovering each of the residue and the valuable(s) electrodeposited onto the cathode.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: January 21, 2020
    Inventor: Toshifumi Kawamura
  • Patent number: 9976222
    Abstract: The invention concerns a bubble collector guide for use in an electrolysis process, which comprises a plurality of guide members arranged at a distance from each other, the guide members comprising a lower side. The guide members can be arranged horizontally on the vertical surface of an electrode so that the lower side of the guide member forms a downwards facing surface that is substantially orthogonal to the vertical surface of the electrode, so as to collect bubbles of gas generated at the electrode.
    Type: Grant
    Filed: June 6, 2013
    Date of Patent: May 22, 2018
    Assignee: Outotec (Finland) Oy
    Inventors: Ville Nieminen, Henri K. Virtanen, Heikki Aaltonen
  • Patent number: 9943858
    Abstract: The invention relates to a waste treatment method in which waste is subjected to a first screening process (4). The fraction of waste passing through the screening is subjected to a pre-fermentation treatment in a rotating tube (1) and the material leaving the pre-fermentation treatment tube is subjected to mixing in a mixing hopper, and, subsequently, to a methanization treatment in a digester (2). The organic materials are separated from the undesirable products in the material leaving the pre-fermentation treatment tube before it enters the digester. The digester (2) is horizontal and mechanically stirred, and a fraction of the digestate leaving the digester is recirculated at least in the mixing hopper, the recirculation rate being sufficiently high to ensure complete mixing.
    Type: Grant
    Filed: March 25, 2013
    Date of Patent: April 17, 2018
    Inventor: Arnaud Sommain
  • Patent number: 9932681
    Abstract: The present disclosure relates to an electrolytic cell for the production of aluminium by reducing alumina. The cell may comprise a sidewall including at least one side block. The side block may comprise an aluminous material having an apparent porosity of less than about 10% and a composition, as a weight percentage on the basis of the aluminous material and for a total of about 100%, such that: Al2O3>about 50%, beta-alumina being less than about 20% of the weight of the aluminous material, oxides that are less reducible than alumina at 1000° C.<about 50%, Na2O<about 3.9%, and other components<about 5%.
    Type: Grant
    Filed: January 18, 2013
    Date of Patent: April 3, 2018
    Assignee: Saint-Gobain Centre De Recherches Et D'Etudes Europeen
    Inventors: Eric Jorge, Olivier Francy, Olivier Panagiotis
  • Patent number: 9546430
    Abstract: The present invention relates to a lithium recovery device and recovery method. The lithium recovery device of the present invention includes: a first electrode; a second electrode; and a power supply device. In the lithium recovery device of the present invention, since lithium is attached to an adsorbent of the first electrode by applying a current to the first and second electrodes in a state in which the first and second electrodes are immersed in a lithium-containing fluid, the first electrode including a carrier made of a stainless steel material in a form of an iron mesh or perforated sheet and having a surface coated with the adsorbent containing a manganese oxide, and the second electrode facing the first electrode, it is possible to increase a size of the device and have excellent energy efficiency and economic feasibility.
    Type: Grant
    Filed: April 14, 2014
    Date of Patent: January 17, 2017
    Inventors: Kang-Sup Chung, Byoung-Gyu Kim, Tae Gong Ryu, Jung Ho Ryu, In-Su Park, Hye-Jin Hong, Kyoung Chul Lee
  • Patent number: 9388045
    Abstract: Disclosed herein are certain embodiments of a novel chemical synthesis route for lithium ion battery applications. Accordingly, various embodiments are focused on the synthesis of a new active material using NMC (Lithium Nickel Manganese Cobalt Oxide) as the precursor for a phosphate material having a layered crystal structure. Partial phosphate generation in the layer structured material stabilizes the material while maintaining the large capacity nature of the layer structured material.
    Type: Grant
    Filed: May 8, 2013
    Date of Patent: July 12, 2016
    Inventors: Chun-Chieh Chang, Tsun Yu Chang
  • Patent number: 9381493
    Abstract: A novel carbon absorption material is described which is formed from anaerobic digestate. The material has a hollow tubular structure and is particularly advantageous in converting hydrogen sulfide in biogas and in absorbing the converted sulfur and sulfur compounds from biogas into its structure. The material after use as a hydrogen sulfide absorbent has value as a horticultural or agricultural product or as a sulfur impregnated activated carbon. The process for producing this novel carbon absorption material is described. In an embodiment, the process described uses in particular, a humidified inert gas over a temperature range of between about 500° C. to 900° C. to convert anaerobic digestate to an active carbon absorbent. The thermal treatment is relatively mild and retains the fibrous structure of the source material while removing cellulosic and hemicellulosic components from the anaerobic digestate.
    Type: Grant
    Filed: July 9, 2013
    Date of Patent: July 5, 2016
    Assignee: SulfaCHAR Inc.
    Inventors: Donald W. Kirk, John W. Graydon, Andrew J. White
  • Patent number: 9074265
    Abstract: The invention generally relates to methods of selectively removing lithium from various liquids, methods of producing high purity lithium carbonate, methods of producing high purity lithium hydroxide, and methods of regenerating resin.
    Type: Grant
    Filed: October 3, 2013
    Date of Patent: July 7, 2015
    Assignee: Simbol, Inc.
    Inventors: Stephen Harrison, Robert Blanchet
  • Publication number: 20150144499
    Abstract: The invention relates to an electrochemical cell, particularly useful in electrochemical processes carried out with periodic reversal of polarity. The cell is equipped with concentric pairs of electrodes arranged in such a way that, in each stage of the process, the cathodic area is equal to the anodic area.
    Type: Application
    Filed: May 16, 2013
    Publication date: May 28, 2015
    Inventor: Mariachiara Benedetto
  • Patent number: 9023129
    Abstract: The invention is directed to a process and apparatus for recovering metals from bottom ash from incineration plants, such as municipal waste incineration plants. The process includes directing a feed containing ash into an oxidizing unit, wherein at least part of the metals is oxidized in the presence of one or more acids and at least one oxygen donor, thus producing a stream comprising metal ions. From this stream the metals of interest are selected and converted into metallic form.
    Type: Grant
    Filed: October 6, 2010
    Date of Patent: May 5, 2015
    Assignee: Elemetal Holding B.V.
    Inventors: Jeroen Pieter Netten, Silvan Johan Thus
  • Publication number: 20150053571
    Abstract: Alkali metals and sulfur may be recovered from an oil desulfurization process which utilized alkali metal in an electrolytic process that utilizes an electrolytic cell having an alkali ion conductive membrane. An anolyte solution includes an alkali monosulfide, an alkali polysulfide, or a mixture thereof and a solvent that dissolves elemental sulfur. A catholyte includes molten alkali metal. Applying an electric current oxidizes sulfide and polysulfide in the anolyte compartment, causes alkali metal ions to pass through the alkali ion conductive membrane to the catholyte compartment, and reduces the alkali metal ions in the catholyte compartment. Liquid sulfur separates from the anolyte solution and may be recovered. The electrolytic cell is operated at a temperature where the formed alkali metal and sulfur are molten.
    Type: Application
    Filed: November 5, 2014
    Publication date: February 26, 2015
    Inventors: John Howard Gordon, Javier Alvare
  • Publication number: 20150027902
    Abstract: The present disclosure related to an economic and environmental safe process for obtaining one or more metals from the red mud slag, bauxite, karst bauxite, lateritic bauxite, clay and the like. The present disclosure also related to a process for obtaining elemental aluminum by electrolyzing AlCl3 in the electrolysis cell.
    Type: Application
    Filed: January 1, 2013
    Publication date: January 29, 2015
    Inventor: Keki Hormusji Gharda
  • Publication number: 20150027901
    Abstract: A biomining enhancement method for metal sulfide ores using sulfurous acid for microbial leaching of heavy metals into solution for subsequent removal via electro winning, ion exchange, or precipitation with alkaline and nutrient reagents for filtration removal.
    Type: Application
    Filed: July 25, 2013
    Publication date: January 29, 2015
    Inventors: Marcus G. Theodore, Terry R. Gong
  • Publication number: 20150021195
    Abstract: An electrochemical cell and method for electrowinning a variety of multivalent metals including titanium is described. In one aspect, the invention provides an electrochemical cell comprising an anolyte chamber comprising an anode and configured for containing an anolyte, a catholyte chamber comprising a cathode and configured for containing a catholyte comprising a metal to be electrolytically produced, and a diaphragm separating the anolyte chamber and the catholyte chamber, the diaphragm configured to control the potential drop across the diaphragm so that it is below the potential difference required for inducing bipolarity at the diaphragm.
    Type: Application
    Filed: July 22, 2013
    Publication date: January 22, 2015
    Inventors: Rohan Akolkar, Uziel Landau
  • Patent number: 8936711
    Abstract: The present invention relates to a method of extracting lithium with high purity from a lithium bearing solution by electrolysis. More specifically, the present invention provides a method of economical extraction of lithium from the lithium bearing solution by adding a phosphorous supplying material to the solution to prepare a lithium phosphate aqueous solution subject to electrolysis.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: January 20, 2015
    Assignee: Research Institute of Industrial Science & Technology
    Inventors: Uong Chon, Ki Hong Kim, Oh Joon Kwon, Chang Ho Song, Gi Chun Han, Ki Young Kim
  • Publication number: 20150014184
    Abstract: A electrolytic process for continuous production of lithium metal from lithium carbonate or other lithium salts by use of an aqueous acid electrolyte and a lithium producing cell structure which includes: a cell body with a cathode within the cell body; an electrolyte aqueous solution within the cell body, the solution containing lithium ion and an anion; and a composite layer intercalated between the cathode and the electrolyte aqueous solution, the composite layer comprising a lithium ion conductive glass ceramic (LI-GC) and a lithium ion conductive barrier film (LI-BF) that isolates cathode-forming lithium from the electrolyte aqueous solution.
    Type: Application
    Filed: July 10, 2014
    Publication date: January 15, 2015
    Inventor: Lawence Ralph Swonger
  • Publication number: 20150008133
    Abstract: An electrochemical deposition system is described. The electrochemical deposition system includes one or more electrochemical deposition modules arranged on a common platform for depositing one or more metals on a substrate, and a chemical management system coupled to the one or more electrochemical deposition modules. The chemical management system is configured to supply at least one of the one or more electrochemical deposition modules with one or more metal constituents for depositing the one or more metals. The chemical management system can include at least one metal enrichment cell and at least one metal-concentrate generator cell.
    Type: Application
    Filed: July 1, 2014
    Publication date: January 8, 2015
    Inventors: Demetrius Papapanayiotou, Arthur Keigler, Jonathan Hander, Johannes Chiu, David G. Guarnaccia, Daniel L. Goodman
  • Publication number: 20140353164
    Abstract: Disclosed are a device for electrowinning europium and a method thereof. The device for electrowinning europium using a channeled cell including a cathode cell includes a channel having an inlet and an outlet; an anode cell including a channel having an inlet and an outlet; and an ion-exchange membrane tightly interposed between the cathode and anode cells, wherein reduced europium is exhausted from the outlet of the cathode cell.
    Type: Application
    Filed: December 16, 2013
    Publication date: December 4, 2014
    Applicant: Korea Institute of Geoscience and Mineral Resources
    Inventors: Kyeong-Woo Chung, Jin-Young Lee, Sung-Don Kim
  • Patent number: 8900439
    Abstract: Modular cathode assemblies are useable in electrolytic reduction systems and include a basket through which fluid electrolyte may pass and exchange charge with a material to be reduced in the basket. The basket can be divided into upper and lower sections to provide entry for the material. Example embodiment cathode assemblies may have any shape to permit modular placement at any position in reduction systems. Modular cathode assemblies include a cathode plate in the basket, to which unique and opposite electrical power may be supplied. Example embodiment modular cathode assemblies may have standardized electrical connectors. Modular cathode assemblies may be supported by a top plate of an electrolytic reduction system. Electrolytic oxide reduction systems are operated by positioning modular cathode and anode assemblies at desired positions, placing a material in the basket, and charging the modular assemblies to reduce the metal oxide.
    Type: Grant
    Filed: December 23, 2010
    Date of Patent: December 2, 2014
    Assignee: GE-Hitachi Nuclear Energy Americas LLC
    Inventors: Stanley G. Wiedmeyer, Laurel A. Barnes, Mark A. Williamson, James L. Willit
  • Publication number: 20140305346
    Abstract: The present invention teaches the method to use the sulfate or sulfites based raw materials, such as magnesium, calcium and other alkative earth sulfates or sulfites to produce the respective oxides in a carbon five basis, by using sulfur as the fuel and the reductant. The invention also utilizes renewable energy such as solar thermal or green electricity wherever possible. This approach provides a green process, of ultra-low carbon dioxide emission, for the production of magnesium, other alkaline earth metals and other material which requires alkaline earth oxide, such as in the production of carbon free Portland cement requiring lime. The invention also provides a useful outlet for waste streams leading to sustainable processes. The cost of the production of these precursors are kept low by concurrently producing a saleable by-product—sulfuric-acid.
    Type: Application
    Filed: April 15, 2013
    Publication date: October 16, 2014
    Inventor: Indra Neelameggham
  • Publication number: 20140284219
    Abstract: A room temperature method and electrode for producing sodium metal in situ is disclosed. The electrode has a sodium hydroxide, or another easily electrolyzible sodium containing material, solution on the anode side, a membrane which permits sodium ions to pass through to the cathode where the sodium ions are reduced to sodium metal. This sodium metal is then available to react with other components of the solution on the cathode side.
    Type: Application
    Filed: March 18, 2014
    Publication date: September 25, 2014
    Inventor: Dru L. DeLaet
  • Publication number: 20140286857
    Abstract: A method of preparing a metal containing inorganic ion exchanger in an electrochemical cell is disclosed. In one embodiment, the method comprises: (a) adding the inorganic ion exchanger to the electrochemical cell, wherein the electrochemical cell comprises a conductive electrolyte solution having a liquid phase and a solid phase; (b) depositing metal ions electrochemically into the liquid phase; (c) allowing the metal ions to deposit onto the inorganic ion exchanger during an electrochemical reaction to obtain a metal containing inorganic ion exchanger; (d) collecting the solid phase comprising the metal containing inorganic ion exchanger obtained in step (c); (e) removing remaining metal ions from the liquid phase; and (f) obtaining a substantially metal free liquid phase.
    Type: Application
    Filed: March 13, 2014
    Publication date: September 25, 2014
    Inventors: Ahmad Dehestani, Gerald Koermer, Mukta Rai
  • Publication number: 20140262810
    Abstract: The invention is directed to a method for producing metal-containing (e.g., non-oxide, oxide, or elemental) nano-objects, which may be nanoparticles or nanowires, the method comprising contacting an aqueous solution comprising a metal salt and water with an electrically powered electrode to form said metal-containing nano-objects dislodged from the electrode, wherein said electrode possesses a nanotextured surface that functions to confine the particle growth process to form said metal-containing nano-objects. The invention is also directed to the resulting metal-containing compositions as well as devices in which they are incorporated.
    Type: Application
    Filed: March 12, 2014
    Publication date: September 18, 2014
    Applicant: UT-Battelle, LLC
    Inventors: Adam Justin Rondinone, Ilia N. Ivanov, Sean Campbell Smith, Chengdu Liang, Dale K. Hensley, Ji-Won Moon, Tommy Joe Phelps
  • Patent number: 8821711
    Abstract: A method for recycling of thin film Cadmium Telluride photovoltaic modules at the end of their life, and manufacturing scrap, has been developed. This method allows for minimum glass fine generation, requires little or no acid compared to other methods, and generates a pure cadmium and tellurium product at recoveries in excess of about 80 percent. In addition, the process allows for the recovery of a clean soda-lime plate glass product.
    Type: Grant
    Filed: June 20, 2012
    Date of Patent: September 2, 2014
    Assignee: Colorado School of Mines
    Inventors: Patrick Taylor, Makko DeFilippo
  • Publication number: 20140183057
    Abstract: The present invention related to a contact bar or contact bar segment, a contact bar and insulating capping board assembly and a method for operating an electrolytic cell including electrodes for refining metal. Embodiments of the contact bar include support sections with multiple support surfaces for lying against the insulating capping board, thereby distributing weight of the electrodes hanging on the contact bar; and contact sections for receiving the electrodes while providing good electrical contact and precise positioning thereof. While following the steps of the method for operating the electrolytic cell, lifetime of the contact bar and insulating capping board may be increased.
    Type: Application
    Filed: March 29, 2012
    Publication date: July 3, 2014
    Applicant: Pultrusion Technique Inc.
    Inventor: Robert P. Dufresne
  • Publication number: 20140158021
    Abstract: A method is provided for the electrochemical synthesis of selenium (Se) nanoparticles (NPs). The method forms a first solution including a Se containing material and a stabilizing first ligand, dissolved in a first solvent. The first solution is exposed to an electric field, and in response to the electric field, a second solution is formed with dispersed SeNPs. The Se containing material has either a nonzero or positive oxidation state. In one particular aspect, the first solution is formed by dissolving Se dioxide (SeO2) in water to form selenosis acid (H2SeO3).
    Type: Application
    Filed: December 11, 2012
    Publication date: June 12, 2014
    Inventors: Wei Pan, Sean Andrew Vail
  • Patent number: 8747660
    Abstract: A process for upgrading an oil feedstock includes reacting the oil feedstock with a quantity of an alkali metal, wherein the reaction produces solid materials and liquid materials. The solid materials are separated from the liquid materials. The solid materials may be washed and heat treated by heating the materials to a temperature above 400° C. The heat treating occurs in an atmosphere that has low oxygen and water content. Once heat treated, the solid materials are added to a solution comprising a polar solvent, where sulfide, hydrogen sulfide or polysulfide anions dissolve. The solution comprising polar solvent is then added to an electrolytic cell, which during operation, produces alkali metal and sulfur.
    Type: Grant
    Filed: January 30, 2013
    Date of Patent: June 10, 2014
    Assignee: Ceramatec, Inc.
    Inventors: John Howard Gordon, Javier Alvare
  • Publication number: 20140144786
    Abstract: 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 ZrO2, ZrSiO4, KZr2(PO4)3, or a mixture thereof and a reducing agent that is metal powder, to prepare zirconium intermetallic compound or zirconium nitride, followed by the recovery of high-purity Zr by electrolytic refining the reaction product of the SHS.
    Type: Application
    Filed: July 29, 2011
    Publication date: May 29, 2014
    Applicant: The Industry & Academic Cooperation in Chungnam National University
    Inventors: Jong Hyeon Lee, Yoon Sang Lee, Han Soo Lee, Seon Jin Kim, Sun Kyo Chung, H. Nersisyan Hayk
  • Patent number: 8728295
    Abstract: A cell having an anode compartment and a cathode compartment is used to electrolyze an alkali metal polysulfide into an alkali metal. The cell includes an anode, wherein at least part of the anode is housed in the anode compartment. The cell also includes a quantity of anolyte housed within the anode compartment, the anolyte comprising an alkali metal polysulfide and a solvent. The cell includes a cathode, wherein at least part of the cathode is housed in the cathode compartment. A quantity of catholyte is housed within the cathode compartment. The cell operates at a temperature below the melting temperature of the alkali metal.
    Type: Grant
    Filed: October 9, 2009
    Date of Patent: May 20, 2014
    Assignee: Ceramatec, Inc.
    Inventors: John Howard Gordon, Ashok V. Joshi
  • Patent number: 8715482
    Abstract: The present invention provides a process for preparing lithium alloy or lithium metal from lithium carbonate or its equivalent lithium ion source such as spudomene ore without creating toxic byproducts such as halogen gases and a system adopted for such a process.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: May 6, 2014
    Assignee: RESC Investment LLC
    Inventors: Steven C. Amendola, Lawrence Swonger, Stefanie Goldman
  • Publication number: 20140054179
    Abstract: Provided are carbon fibers with low metal ion elution amount without subjecting to high-temperature heat treatment, in which the metal ion may be sometimes precipitated on an electrode of electrochemical devices such as batteries and capacitors to cause short-circuit. The carbon fibers comprises Fe, at least one catalyst metal selected from the group consisting of Mo and V, and a carrier; wherein the carbon fibers have an R value (ID/IG) as measured by Raman spectrometry of 0.5 to 2.0 and have an electrochemical metal elution amount of not more than 0.01% by mass.
    Type: Application
    Filed: August 22, 2013
    Publication date: February 27, 2014
    Applicant: SHOWA DENKO K.K.
    Inventors: Ryuji YAMAMOTO, Yuusuke Yamada, Takeshi Nakamura
  • Publication number: 20140054178
    Abstract: An electrode mask for electrowinning a metal is provided. An example technique forms openings in a solid nonconductive sheet, such as vinyl, polyvinyl chloride (PVC), or other plastic and adheres the sheet as a solid to a cathode surface as a mask. The mask protects the cathode surface from electrical interaction with an electrolyte, while the openings allow controlled electrodeposition of a metal in harvestable rounds, which can be stripped from the cathode. The electrode mask is reusable, and easily removed for recycling and replacement. A matrix design engine calculates pattern and sizes for the openings in the mask to optimize electrodeposition of the metal based on multiple parameters including the metal to be deposited, ions present in an electrolyte, electrolyte concentration, pH level, voltage, electrical current density, solution temperature, electrode temperature, or plating time.
    Type: Application
    Filed: August 21, 2013
    Publication date: February 27, 2014
    Inventor: Thomas W. Valentine
  • Publication number: 20140054180
    Abstract: Provided is an anode for electrowinning in a sulfuric acid based electrolytic solution. The anode produces oxygen at a lower potential than a lead electrode, lead alloy electrode, and coated titanium electrode, thereby enabling electrowinning to be performed at a reduced electrolytic voltage and the electric power consumption rate of a desired metal to be reduced. The anode is also available as an anode for electrowinning various types of metals in volume with efficiency. The anode is employed for electrowinning in a sulfuric acid based electrolytic solution and adopted such that a catalyst layer containing amorphous ruthenium oxide and amorphous tantalum oxide is formed on a conductive substrate.
    Type: Application
    Filed: March 23, 2012
    Publication date: February 27, 2014
    Applicant: The Doshisha
    Inventor: Masatsugu Morimitsu
  • Publication number: 20140027301
    Abstract: A method and electrochemical cell for recovery of metals is provided, where the electrochemical cell includes an anode disposed in an anodic chamber, a cathode disposed in a cathodic chamber, an ion-conducting separator disposed between the anode and the cathode to physically separate the anodic and cathodic chambers, a basic pH anolyte containing a sacrificial reductant disposed within the anodic chamber, an acidic pH catholyte containing metal ions disposed within the cathodic chamber, and an electrical connection between the anode and the cathode. The method includes applying a voltage or an electrical current to an electrolytic cell across the cathode and the anode and is sufficient to reduce the metal ions to form an elemental metal species at the cathode, and to oxidize the sacrificial reductant at the anode.
    Type: Application
    Filed: March 14, 2013
    Publication date: January 30, 2014
    Applicant: OHIO UNIVERSITY
    Inventor: Gerardine G. Botte
  • Patent number: 8636892
    Abstract: Power distribution systems are useable in electrolytic reduction systems and include several cathode and anode assembly electrical contacts that permit flexible modular assembly numbers and placement in standardized connection configurations. Electrical contacts may be arranged at any position where assembly contact is desired. Electrical power may be provided via power cables attached to seating assemblies of the electrical contacts. Cathode and anode assembly electrical contacts may provide electrical power at any desired levels. Pairs of anode and cathode assembly electrical contacts may provide equal and opposite electrical power; different cathode assembly electrical contacts may provide different levels of electrical power to a same or different modular cathode assembly.
    Type: Grant
    Filed: December 23, 2010
    Date of Patent: January 28, 2014
    Assignee: GE-Hitachi Nuclear Energy Americas LLC
    Inventors: Eugene R. Koehl, Laurel A. Barnes, Stanley G. Wiedmeyer, Mark A. Williamson, James L. Willit
  • Publication number: 20140008239
    Abstract: A process of producing metal that includes adding a quantity of a alkoxide (M(OR)x) or another metal salt to a cathode compartment of an electrolytic cell and electrolyzing the cell. This electrolyzing causes a quantity of alkali metal ions to migrate into the cathode compartment and react with the metal alkoxide, thereby producing metal and an alkali metal alkoxide. In some embodiments, the alkali metal is sodium such that the sodium ions will pass through a sodium ion selective membrane, such as a NaSICON membrane, into the cathode compartment.
    Type: Application
    Filed: July 3, 2013
    Publication date: January 9, 2014
    Inventor: Sai Bhavaraju
  • Patent number: 8617377
    Abstract: An electrowinning method of metals through electrolysis of a metal chloride solution uses an anode comprising a substrate comprising titanium or titanium alloy, and a coating layer comprising a plurality of a unit layer, provided on the surface of the substrate. The unit layer comprises the first coating layer comprising a mixture of iridium oxide, ruthenium oxide and titanium oxide and the second coating layer comprising a mixture of platinum and iridium oxide. The first coating layer contacts with the surface of said substrate and an outer coating layer of the unit layer formed on the outermost layer of said coating layer is the second coating layer. The coating layer is formed by thermal decomposition baking, which followed by post-baking at a higher baking temperature.
    Type: Grant
    Filed: October 14, 2011
    Date of Patent: December 31, 2013
    Assignee: Permelec Electrode Ltd.
    Inventor: Toshikazu Hayashida
  • Patent number: 8617360
    Abstract: Methods and devices for the continuous manufacture of nanop?rticles, microparticles and nanoparticle/liquid solution(s) are disclosed. The nanoparticles (and/or micron-sized particles) comprise a variety of possible compositions, sizes and shapes. The particles (e.g., nanoparticles) are caused to be present (e. g., created) in a liquid (e.g., water) by utilizing at least one adjustable plasma (e.g., created by at least one AC and/or DC power source), which plasma communicates with at least a portion of a surface of the liquid. The continuous process causes at least one liquid to flow into, through and out of at least one trough member, such liquid being processed, conditioned and/or effected in said trough member(s).
    Type: Grant
    Filed: July 11, 2008
    Date of Patent: December 31, 2013
    Assignee: GR Intellectual Reserve, LLC
    Inventors: David K. Pierce, Mark G. Mortenson, David A. Bryce
  • Patent number: 8580089
    Abstract: A system is submitted here that permits superimposing an alternating current in the process of electrolytic refining of metals based on the use of power semiconductors without requiring an external source and which minimizes the utilization of passive elements, achieving a high efficiency solution applicable to high power industrial processes. The invention consists of the division of the cells involved in the metals electrolysis process in two groups of cells (3a) and 3b, both comprising a similar number of anode-cathode pairings, and with both groups linked by a common point for electrical connection (6), and interconnected by means of a bidirectional power converter (7). Said power converter (7) is connected to the common point for electrical connection 6 of the groups of cells (3a, 3b) and to the other two connection points of each group of cells, so that its operation permits transferring power from one group to the other.
    Type: Grant
    Filed: April 23, 2010
    Date of Patent: November 12, 2013
    Assignee: Ingenieria Y Desarrollo Technologico S.A.
    Inventors: Patricio Clemente Lagos Lehuede, Ricardo Armando Feuntes Fuentealba, Jorge Luis Estrada Gonzalez
  • Publication number: 20130260263
    Abstract: A mobile energy carrier with which energy in the form of materials from zones distributed widely throughout the world, for example with a large amount of solar energy, wind energy or other CO2-neutral energy, for example the equator, can be transported to zones where there is a high energy requirement, for example Europe.
    Type: Application
    Filed: May 31, 2013
    Publication date: October 3, 2013
    Inventor: Günter SCHMID
  • Publication number: 20130233720
    Abstract: The present invention provides a substantially inert environment within a cathode chamber that is capable of generating a metallic element M from a metal ion Mz+.
    Type: Application
    Filed: October 29, 2012
    Publication date: September 12, 2013
    Inventor: Gagik Martoyan
  • Patent number: 8529749
    Abstract: An electrochemical cell includes a container at atmospheric pressure comprising a liquid electrolyte and a first electrode at least partially immersed in the electrolyte. A plasma source is spaced apart from a surface of the electrolyte by a predetermined spacing, and a plasma spans the predetermined spacing to contact the surface of the electrolyte. A method of operating the electrochemical cell entails providing a first electrode at least partially immersed in a liquid electrolyte and producing a plasma in contact with a surface of the electrolyte at atmospheric pressure. The plasma acts as a second electrode, and a current is generated through the electrolyte. Electrochemical reactions involving at least the second electrode are initiated in the electrolyte.
    Type: Grant
    Filed: August 6, 2010
    Date of Patent: September 10, 2013
    Assignee: Case Western Reserve University
    Inventor: R. Mohan Sankaran
  • Patent number: 8518298
    Abstract: There is provided a mixture having a freezing point of up to 50° C., formed by reaction between: (A) one molar equivalent of a salt of formula I (Mn+)(X?)n I or a hydrate thereof; and (B) from one to eight molar equivalents of a complexing agent comprising one or more uncharged organic compounds, each of which compounds has (i) a hydrogen atom that is capable of forming a hydrogen bond with the anion X?; and (ii) a heteroatom selected from the group consisting of O, S, N and P that is capable of forming a coordinative bond with the metal ion Mn+, which reaction is performed in the absence of extraneous solvent, wherein M, X? mind a have meaning given in the description.
    Type: Grant
    Filed: July 6, 2006
    Date of Patent: August 27, 2013
    Assignee: University of Leicester
    Inventor: Andrew Peter Abbott
  • Publication number: 20130213820
    Abstract: The present disclosure relates to a process and system for recovery of one or more metal values using solution extraction techniques and to a system for metal value recovery. In an exemplary embodiment, the solution extraction system comprises a first solution extraction circuit and a second solution extraction circuit. A first metal-bearing solution is provided to the first and second circuit, and a second metal-bearing solution is provided to the first circuit. The first circuit produces a first rich electrolyte solution, which can be forwarded to primary metal value recovery, and a low-grade raffinate, which is forwarded to secondary metal value recovery. The second circuit produces a second rich electrolyte solution, which is also forwarded to primary metal value recovery. The first and second solution extraction circuits have independent organic phases and each circuit can operate independently of the other circuit.
    Type: Application
    Filed: March 14, 2013
    Publication date: August 22, 2013
  • Patent number: 8512544
    Abstract: The method of the present invention includes a step (i) in which a voltage is applied between first and second electrodes 21 and 22 so that the first electrode serves as a cathode, with the first and second electrodes 21 and 22 being placed in contact with a material that allows ions to move therethrough. The material includes an adsorbent (gel 11) containing a macromolecule that has adsorbed a metal ion. The macromolecule contains the same constitutional units as those contained in a macromolecule extracted from Aphanothece sacrum. The first electrode 21 is placed in contact with the adsorbent in step (i). The metal is deposited on a surface of the first electrode 21 by applying the voltage in step (i).
    Type: Grant
    Filed: June 18, 2010
    Date of Patent: August 20, 2013
    Assignee: Hitachi Chemical Company, Ltd.
    Inventors: Tatsuo Kaneko, Maiko Kaneko, Hiroshi Kawazoe