Producing Or Treating Free Metal Patents (Class 75/392)
  • Patent number: 10294535
    Abstract: A rotary hearth furnace includes a unit that supplies an agglomerate onto a hearth of the rotary hearth furnace, a unit that discharges a heated substance which has been heated in the rotary hearth furnace to the outside of the furnace, and a unit that discharges an exhaust gas in the rotary hearth furnace to the outside of the furnace. The rotary hearth furnace has a heating section and a non-heating section. The unit that discharges an exhaust gas to the outside of the furnace is provided in the non-heating section. A unit that takes an outside air into the furnace is provided in the non-heating section and on an upstream side in a flow direction of the exhaust gas from the unit that discharges exhaust gas to the outside of the furnace.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: May 21, 2019
    Assignee: Kobe Steel, Ltd.
    Inventor: Tadashi Yaso
  • Patent number: 9896747
    Abstract: The present invention relates to an aluminum alloy having low density and enhanced heat resistance. An aluminum alloy having improved high temperature physical properties comprises: magnesium (Mg) in an amount of about 7 to about 11 wt %, silicon (Si) in an amount of about 4 to about 8 wt %, copper (Cu) in an amount of about 0.5 to about 2 wt % and manganese (Mn) in an amount of about 0.3 to about 0.7 wt %, and a balance of aluminum based on the total weight of the aluminum alloy. Vehicle parts such as a piston, a housing and/or a bed plate of high power engine, to which the aluminum alloy may be applied, are provided as well.
    Type: Grant
    Filed: September 24, 2014
    Date of Patent: February 20, 2018
    Assignee: Hyundai Motor Company
    Inventor: Hee-Sam Kang
  • Patent number: 9752210
    Abstract: A method for smelting a nickel oxide ore, wherein the reduction step progresses effectively while maintaining the strength of the pellets, comprises: a pellet production step S1 for producing pellets from a nickel oxide ore; and a reduction step S2 for reducing and heating the obtained pellets in a smelting furnace at a predetermined reduction temperature. In the pellet production step S1, a mixture is formed by mixing materials including said nickel oxide ore without mixing a carbonaceous reducing agent, and the pellets are formed by agglomerating said mixture. In the reduction step S2, in charging the obtained pellets into the smelting furnace, a carbonaceous reducing agent is spread in advance over the furnace floor of the smelting furnace and the pellets are placed on the carbonaceous reducing agent, and the pellets are reduced and heated in a state where the pellets are covered by the carbonaceous reducing agent.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: September 5, 2017
    Assignee: SUMITOMO METAL MINING CO., LTD.
    Inventors: Junichi Takahashi, Taku Inoue, Shuuji Okada
  • Patent number: 9676026
    Abstract: A method for manufacturing a bioresorbable implant, wherein a magnesium alloy is formed into an implant. A melt is pressed into a die and gases in the die induce turbulence in the inflowing melt, thereby enclosing gas, so that the porous implant is formed with a porosity, which increases from outside inwardly. The surface of the implant is substantially free from open pores.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: June 13, 2017
    Assignee: AAP Implantate AG
    Inventors: Frank Witte, Norbert Hort, Marco Wolfstadter, Bernd Frohlich, Wolfgang Voith, Hans-Joachim Fischer
  • Patent number: 9670567
    Abstract: The invention relates to a manufacturing method for making an unwrought semi-finished product having at mid thickness a density of micropores of size greater than 90 ?m less than 50% and preferably less than 20% of the density of micropores of size greater than 90 ?m obtained by a method according to prior art. The method according to the invention comprises in particular an ultrasound treatment step for the molten metal bath in a furnace and/or a vessel using an immersed device comprising at least one ultrasound transmitter. The semi-finished products obtained according to the method of the invention are particularly advantageous for manufacturing by rolling sheets designed for the aircraft industry to produce spars, ribs, upper and lower wing skins and for manufacturing by extrusion sections designed for the aircraft industry to produce stiffeners.
    Type: Grant
    Filed: February 16, 2012
    Date of Patent: June 6, 2017
    Assignee: CONSTELLIUM ISSOIRE
    Inventor: Philippe Jarry
  • Publication number: 20150143954
    Abstract: The invention generally relates to a system and method for selectively removing metals from a metal containing substance, and more particularly to a method and system for selectively extracting metals from fly ash with one or more of an acidic extraction process, basic extraction process, and supercritical carbon dioxide (scC02) and a co-solvent extraction process. Moreover, bi-products from an industrial process, e.g., coal fired plant, may be utilized in the extraction processes.
    Type: Application
    Filed: May 28, 2013
    Publication date: May 28, 2015
    Inventors: Kurt David Neumann, Claire MacLeod Ohman, Eric John Klein, Jason Kenneth Brasseur
  • Patent number: 9028585
    Abstract: Novel systems and methods are described for reducing iron oxide to metallic iron in an integrated steel mill or the like that has a coke oven and/or an oxygen steelmaking furnace. More specifically, the present invention relates to novel systems and methods for reducing iron oxide to metallic iron using coke oven gas (COG) or COG and basic oxygen furnace gas (BOFG).
    Type: Grant
    Filed: July 31, 2013
    Date of Patent: May 12, 2015
    Assignee: Midrex Technologies, Inc.
    Inventors: Gary E. Metius, James M. McClelland, Jr., David C. Meissner, Stephen C. Montague
  • Patent number: 9028586
    Abstract: The present invention relates to a novel process for producing metal composites by internal oxidation.
    Type: Grant
    Filed: December 29, 2011
    Date of Patent: May 12, 2015
    Assignee: Umicore
    Inventors: Bernd Kempf, Gunther Wiehl, Werner Roth, Andreas Koch, Peter Braumann, Ralf Niederreuther
  • Publication number: 20150125341
    Abstract: Permanent and soft magnets that do not depend on rare-earth elements have suitable magnetic properties for electric motor and generator applications. Both saturation magnetization and magneto-crystalline anisotropy of a manganese-bismuth (Mn—Bi) permanent (hard) magnet are increased by alloying the Mn—Bi magnet with cobalt (Co) or cobalt-iron (Co—Fe). Such magnets do not include rare-earth and precious metals (e.g., platinum), which are expensive and often limited in supply, but offer high magneto-crystalline anisotropy and magnetization. Therefore, a relatively high maximum energy product (BH)max is achieved.
    Type: Application
    Filed: April 16, 2013
    Publication date: May 7, 2015
    Inventors: Yang-Ki Hong, Jihoon Park
  • Publication number: 20150111022
    Abstract: A method of fabricating a metal cellular structure includes providing a sol-gel that is a colloid dispersed in a solvent, the colloid including metal-containing regions bound together by polymeric ligands, removing the solvent from the gel using supercritical drying to produce a dry gel of the metal-containing regions bound together by the polymeric ligands, and thermally converting the dry gel to a cellular structure with a coating in at least one step using phase separation of at least two insoluble elements. Also disclosed is a metal cellular structure including interconnected metal ligaments having a cellular structure and a carbon-containing coating around the metal ligaments.
    Type: Application
    Filed: October 7, 2014
    Publication date: April 23, 2015
    Inventor: Michael J. Birnkrant
  • Publication number: 20150101455
    Abstract: The present invention relates to a method for recovery of noble metals from long-chain hydrocarbons, oils or tars, comprising a thermal treatment process in the presence of a defoaming agent having an ash fraction of 0.1% by weight or more.
    Type: Application
    Filed: October 9, 2014
    Publication date: April 16, 2015
    Inventors: Jose Manuel Romero, Bingan Liu, Yanmei Zeng
  • Publication number: 20150082947
    Abstract: The present invention describes an effective grain refining practice for aluminium foundry alloys. The method described herein relies on the control of the Titanium level of the alloy to be grain refined and the addition of boron once it is melted. Boron addition can be made via Al—B master alloys as well as with boron compounds such as KBF4 salt. The boron added into the melt dissolves first and then forms the AlB2 particles that act as potent substrates for the nucleation of aluminium once solidification process starts. The Ti concentration of the alloy must be controlled below 100 ppm for this method to offer effective grain refinement. The boron becomes ineffective when the Ti concentration in the alloy is higher.
    Type: Application
    Filed: November 16, 2012
    Publication date: March 26, 2015
    Applicant: TUBITAK
    Inventors: Osman Cakir, Fahri Alageyik, Yucel Birol
  • Patent number: 8979974
    Abstract: The present invention provides a composition for collecting a metal component from a metal component-containing material, the composition containing a compound containing at least one element selected from the group consisting of lanthanoid elements and elements in group 2 of the periodic table, and a compound containing at least one element selected from the group consisting of elements in groups 3, 4, 12, and 13 of the periodic table and transition metal elements in the 4th period of the periodic table. The present invention further provides a method for collecting a metal component using this composition. With the use of the composition of the present invention, a metal component can be easily and efficiently collected from a material containing a highly useful metal component such as noble or rare metal.
    Type: Grant
    Filed: June 21, 2013
    Date of Patent: March 17, 2015
    Assignee: National Institute of Advanced Industrial Science and Technology
    Inventors: Katsuhiro Nomura, Hiroyuki Kageyama, Masakazu Date, Tadahiro Fujitani
  • Publication number: 20150068365
    Abstract: Embodiments of the present invention provide systems and methods for efficiently producing both a low-pressure ozone stream and high-pressure oxygen stream using a single air separation unit. The low-pressure ozone stream and high-pressure oxygen stream can be produced with significant energy savings and can be used in variety of applications, including the extraction of precious metals from ore with aqueous oxidation reactors and high-pressure oxidation reactors.
    Type: Application
    Filed: September 12, 2013
    Publication date: March 12, 2015
    Inventors: Timothy Christopher GOLDEN, Vipul P. DHOLAKIA, Sunita S. SISODIA
  • Publication number: 20150053049
    Abstract: A process for treating a feed material composition includes a solid particulate precious metal material-rich feed material composition fraction and a solid particulate rare earth metal material-rich feed material composition fraction, in which the solid particulate precious metal material-rich feed material composition fraction includes one or more precious metals, and in which the solid particulate rare earth metal material-rich feed material composition fraction includes one or more rare earth metals. The process includes contacting the solid particulate feed material composition with a reducing agent within a reducing agent contacting zone to effect production of a reaction intermediate solid particulate material composition.
    Type: Application
    Filed: November 3, 2014
    Publication date: February 26, 2015
    Applicant: CVMR CORPORATION
    Inventors: Dmitri Terekhov, Nanthakumar Victor Emmanuel, Kamran Khozan, Colwyn Van Der Linde
  • Publication number: 20150040727
    Abstract: A method of removing salt from a dendritic mixture includes loading the dendritic mixture into a mechanical press system. The dendritic mixture includes a metallic dendrite and salt dispersed within the metallic dendrite. The dendritic mixture is heated to liquefy the salt without volatilizing one or more metals of the metallic dendrite. The dendritic mixture is also compressed to obtain a fluidic mixture and an ingot of the metallic dendrite. The fluidic mixture may include molten salt and residual metallic dendrite. The fluidic mixture may be filtered to separate the residual metallic dendrite from the molten salt.
    Type: Application
    Filed: August 7, 2013
    Publication date: February 12, 2015
    Applicant: GE-HITACHI NUCLEAR ENERGY AMERICAS LLC
    Inventor: Zachary William KOSSLOW
  • Publication number: 20150018438
    Abstract: The present invention relates to: a catalyst activation method for Fischer-Tropsch synthesis; a catalyst regeneration method for Fischer-Tropsch synthesis; and a method for producing a liquid or solid hydrocarbon by using the Fischer-Tropsch synthesis reaction. The temperatures required for a metal carbide producing and activating reaction is markedly lower than existing catalyst activation temperatures, and the catalyst can be activated under conditions that are the same as Fischer-Tropsch synthesis reaction conditions, and thus there is no need for separate reduction equipment in the reactor, and a Fischer-Tropsch synthesis catalyst which has been used for a long time can be regenerated within the reactor without the catalyst being isolated or extracted from the reactor.
    Type: Application
    Filed: March 7, 2013
    Publication date: January 15, 2015
    Inventors: Kyoung Su Ha, Geun Jae Kwak, Jae Hoon Jung, Joo Young Cheon, Min Hee Woo, Yun Jo Lee, Ki Won Jun
  • Publication number: 20150011749
    Abstract: Metal-accumulating plants for preparing compositions including a metal catalyst derived from the plants. The composition is substantially devoid of organic matter. Also, carrying out chemical reactions with the compositions prepared from metal-accumulating plants.
    Type: Application
    Filed: March 5, 2013
    Publication date: January 8, 2015
    Applicants: UNIVERSITE MONTPELLIER 2 SCIENCES ET TECHNIQUES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Claude Grison, Vincent Escande
  • Publication number: 20150004315
    Abstract: A first compound having an atom in an oxidized state is reacted with a bis(trimethylsilyl) six-membered ring system or related compound to form a second compound having the atom in a reduced state relative to the first compound. The atom in an oxidized state is selected from the group consisting of Groups 2 to 12 of the Periodic Table, As, Sb, Bi, Se, and Te.
    Type: Application
    Filed: June 28, 2013
    Publication date: January 1, 2015
    Inventors: Charles H. Winter, Joseph Peter Klesko
  • Publication number: 20150004314
    Abstract: A first compound having an atom in an oxidized state is reacted with a bis(trimethylsilyl) six-membered ring system or related compound to form a second compound having the atom in a reduced state relative to the first compound. The atom in an oxidized state is selected from the group consisting of Groups 2-12 of the Periodic Table, the lanthanides, As, Sb, Bi, Te, Si, Ge, Sn, and Al.
    Type: Application
    Filed: June 27, 2014
    Publication date: January 1, 2015
    Inventors: Charles H. WINTER, Joseph Peter KLESKO
  • Patent number: 8920536
    Abstract: An ore containing crystal water (bond water) is heated to dehydrate the crystal water in the form of water vapor, thereby rendering the ore porous to generate a porous ore. Next, the porous ore is forced into contact with a dry-distilled gas (organic gas) obtained by dry-distillation of an organic substance such as wood and the like or an organic liquid such as tar and the like. An organic compound such as tar and the like contained in the dry-distilled gas or organic liquid adheres to the surface of the porous ore. Next, the porous ore adhered with an organic compound is heated at 500° C. or higher, to generate an ore in which a part of an oxide of an element such as iron and the like contained is reduced by carbon in the organic compound.
    Type: Grant
    Filed: September 6, 2007
    Date of Patent: December 30, 2014
    Assignees: Bio Coke Lab. Ltd.
    Inventors: Tomohiro Akiyama, Yuichi Hata, Sou Hosokai, Xinghe Zhang, Purwanto Hadi, Junichiro Hayashi, Yoshiaki Kashiwaya, Hiroshi Uesugi
  • Patent number: 8888890
    Abstract: A redox ore leaching treatment method utilizing sulfurous acid to act as either an oxidizing or a reducing solution via pH adjustment for ore leaching and bioleaching.
    Type: Grant
    Filed: October 6, 2011
    Date of Patent: November 18, 2014
    Assignee: Earth Renaissance Technologies, LLC
    Inventors: Marcus G. Theodore, Terry R. Gong
  • Publication number: 20140311294
    Abstract: Methods and systems for recovering or extracting rare earth elements under mild conditions include subjecting a material including rare earth element to a rare earth element crystallization medium under solvothermal conditions sufficient to form rare earth element crystals capable of gravity separation and purification.
    Type: Application
    Filed: March 14, 2014
    Publication date: October 23, 2014
    Applicant: The University of Houston System
    Inventors: Allan J. Jacobson, Pradeep Samarasekere
  • Publication number: 20140308197
    Abstract: A unique production of titanium compounds and metal by sustainable methods using iron-titanium oxide starting material such as ilmenite, leucoxene, or rutile is described. Here the iron-titanium oxide compound is prepared by converting the iron portion of the compound to ferrous chloride at low temperatures by using close to stoichiometric amounts of sulfur and chlorine required for all the iron oxides and the other non-titanium oxides. The ferrous chloride thus formed is removed recovering a marketable product of ferrous chloride and the ‘sustainable’ titanium oxide starting material by additional process steps. This can be converted to ‘sustainable’ titanium metal, or titanium tetra-chloride by process shown herein for further conversions to titanium dioxide pigment by present chloride process or supplied to existing titanium sponge producers, benefitting them in having a ‘sustainable process’.
    Type: Application
    Filed: April 16, 2013
    Publication date: October 16, 2014
    Inventor: Indra Neelameggham
  • 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: 20140298953
    Abstract: The present invention relates to a method and gasification system for recycling methane-rich gas from syngas stream emanating from fluidized bed reactor and then returning the methane to the fluidized bed reactor. The method comprises recovering methane-rich gas from the synthesis gas and delivering at least a portion of the recovered methane-rich gas to the fluidized bed reactor. Methods to recover methane-rich gas from syngas at different steps in the gasification system are also provided herein.
    Type: Application
    Filed: March 14, 2014
    Publication date: October 9, 2014
    Inventors: JOHN WINTER, TAKAHIRO OBASE
  • Publication number: 20140298954
    Abstract: Recovering gold from gold-loaded fine carbon by application of thermo-kinetic chemical activation regime at a low temperature, while preventing vitrification of imputies found in the gold-loaded fine carbon.
    Type: Application
    Filed: April 8, 2013
    Publication date: October 9, 2014
    Inventors: Ruben ARZUMANYAN, Vladimir MATOSYAN
  • Publication number: 20140301939
    Abstract: The present invention provides an ammonium perrhenate containing less than 5 ppm of potassium.
    Type: Application
    Filed: June 20, 2014
    Publication date: October 9, 2014
    Inventors: ARMIN OLBRICH, MATTHIAS JAHN, JULIANE MEESE-MARKTSCHEFFEL, RUEDIGER ZERTANI
  • Patent number: 8852777
    Abstract: A method for preparing a redox flow battery electrolyte is provided. In some embodiments, the method includes the processing of raw materials containing sources of chromium ions and/or iron ions. The method further comprises the removal of impurities such as metal ions from those raw materials. In some embodiments, a reductant may be used to remove metal impurities from an aqueous electrolyte containing chromium ions and/or nickel ions. In some embodiments, the reductant is an amalgam. In some embodiments, the reductant is a zinc amalgam. Also provided is a method for removing ionic impurities from an aqueous acid solution. Further provided a redox flow battery comprising at least one electrolyte prepared from the above-identified methods.
    Type: Grant
    Filed: December 4, 2009
    Date of Patent: October 7, 2014
    Assignee: Deeya Energy, Inc.
    Inventors: Majid Keshavarz, Aravamuthan Varadarajan
  • Publication number: 20140290438
    Abstract: The invention concerns a method for retrieving active material from a galvanic cell, which comprises an active material, a support for the active material and a binder for bonding the active material and the support, with the steps: (a) crushing the cells, in particular under inert gas or in a vacuum, so that solid cell fragments are also formed, (b) heating the solid cell fragments up to the decomposition temperature (Tz), which is high enough to make the binder decompose and/or evaporate, preferably under inert gas or in a vacuum, such that heat treated cell fragmented are formed, and (c) classifying the heat treated cell fragments, whereby (d) the classifying comprises air jet sieving and (e) the air jet sieving is carried out in such a way that the active material is separated from the support.
    Type: Application
    Filed: August 10, 2012
    Publication date: October 2, 2014
    Inventors: Christian Hanisch, Wolfgang Haselrieder, Arno Kwade
  • Publication number: 20140290437
    Abstract: A method for the refining and structural modification of Al—Mg—Si alloys for permanent-mold casting or sandcasting, which Al—Mg—Si alloys have the general composition of 5.0-10.0 weight % Mg; 1.0-5.0 weight % Si; 0.001-1.0 weight % Mn, 0.01-0.2 weight % Ti, less than 0.001 weight % Ca, less than 0.001 weight % Na, and less than 0.001 weight % Sr, and as the remainder, Al, and wherein phosphorus is added to the alloy melt in a quantitative range of from 0.01 to 0.06 weight %, referred to the total mass of the alloy.
    Type: Application
    Filed: May 3, 2012
    Publication date: October 2, 2014
    Inventors: Thomas Pabel, Peter Schumacher
  • Patent number: 8845779
    Abstract: The object of the present invention is to provide a process for producing molten iron through the efficient reduction of iron oxide having various chemical compositions and various shapes, or through the efficient melting of scrap iron or reduced iron having various shapes and various chemical compositions, the process being used in cases where the amount of iron necessary per furnace is not so large as in blast furnace processes. Specifically, the present invention provides a process for producing molten iron comprising the steps of: supplying carbon-containing molten iron to a holding container, heating the molten iron using heat of a combustion reaction of a gas mixture containing a fuel gas and a combustion-supporting gas, thereby storing the heat therein, and adding a carbon source and an iron-containing material that contains iron oxide and/or scrap iron to the heated and heat-stored molten iron, thereby converting the iron-containing material to molten iron.
    Type: Grant
    Filed: September 7, 2009
    Date of Patent: September 30, 2014
    Assignee: ISTC Co., Ltd.
    Inventor: Teruyoshi Hiraoka
  • Publication number: 20140260801
    Abstract: A method for sorting mined material in a sorting apparatus is disclosed. The method includes supplying particles of a mined material onto a conveyor belt (5), transporting the particles on the conveyor belt past a detection assembly (9, 13) and assessing the particles, and separating the particles based on the assessment into an accepts stream and a rejects stream at a discharge end of the belt using a separator assembly (29). The method also includes controlling the arrangement of particles so that there is an ordered arrangement of particles on the belt to optimise the throughput of particles through the sorting apparatus.
    Type: Application
    Filed: July 30, 2012
    Publication date: September 18, 2014
    Applicant: TECHNOLOGICAL RESOURCES PTY. LIMITED
    Inventors: Grant Ashley Wellwood, John Clarence Box
  • Publication number: 20140261898
    Abstract: Disclosed herein is a bulk metallic glasses (BMG) comprising 0.0001 wt % to 0.7 wt % of Be, 0.0001 wt % to 0.2 wt % of Be, or 0.06 wt % to 0.08 wt % of Be. Be may have the effect of reducing a liquidus temperature of the BMG relative to melting temperatures of individual alloying elements of the BMG.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Inventors: Edgar E. Vidal, James A. Yurko, Charles Pokross, Randy S. Beals, Lawrence H. Ryczek, Theodore A. Waniuk, Joseph C. Poole, Christopher D. Prest, Dermot J. Stratton
  • Publication number: 20140260802
    Abstract: An apparatus for processing mined material, such as mined ore, is disclosed. The apparatus includes an applicator (2) for exposing a downwardly moving bed of fragments of a material to electromagnetic radiation. The applicator includes a tube (4) for containing the moving bed of fragments that has an upper inlet and a lower outlet and a transverse cross-sectional area that increases between the inlet and the outlet.
    Type: Application
    Filed: August 3, 2012
    Publication date: September 18, 2014
    Applicant: TECHNOLOGICAL RESOURCES PTY. LIMITED
    Inventors: Samuel Kingman, Georgios Dimitrakis, Christopher Dodds, Grant Ashley Wellwood
  • Publication number: 20140260798
    Abstract: In various aspects, systems and methods are provided for operating molten carbonate fuel cells with processes for iron and/or steel production. The systems and methods can provide process improvements such as increased efficiency, reduction of carbon emissions per ton of product produced, or simplified capture of the carbon emissions as an integrated part of the system. The number of separate processes and the complexity of the overall production system can be reduced while providing flexibility in fuel feed stock and the various chemical, heat, and electrical outputs needed to power the processes.
    Type: Application
    Filed: March 13, 2014
    Publication date: September 18, 2014
    Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Paul J. Berlowitz, Timothy Andrew Barckholtz, Anita S. Lee
  • Patent number: 8834598
    Abstract: Aspects of the present invention refer to a MHP process do produce rough ferro-nickel product and that may include the steps of mixing nickel hydroxide with an iron source and slagging agents, putting the mixture in contact with a reducing agent producing a ferronickel alloy, and producing a roasted product that has disseminated ferronickel alloy inside the structure.
    Type: Grant
    Filed: February 6, 2012
    Date of Patent: September 16, 2014
    Assignee: Vale S.A.
    Inventors: Tiago V. Berni, Antonio C. Pereira
  • Patent number: 8834600
    Abstract: The present invention relates to a zero-waste process for extraction of alumina from different types of bauxite ores and red mud residues and of titanium dioxide from ilmenite. Iron oxide is first reduced to metallic iron above the melting point of C-saturated cast iron alloy which yields a high-C iron alloy and an Al and Ti metal oxide rich slag which is then treated with alkali carbonate to form alkali aluminates and titanates. The alkali aluminates are separated by water leaching from which the hydroxide of alumina is precipitated by bubbling C02. The residue from water leaching is treated with sulphuric acid and Ti02 is precipitated via a hydrolysis route. The process recovers most of the metal values and generates only small quantities of silicious residues at pH 4-5 which can be used for soil conditioning.
    Type: Grant
    Filed: June 11, 2004
    Date of Patent: September 16, 2014
    Assignee: The University of Leeds
    Inventors: Animesh Jha, Pailo Antony Malpan, Vilas Dattatray Tathavadkar
  • Patent number: 8815151
    Abstract: Nanowire preparation methods, compositions, and articles are disclosed. Such methods which reduce metal ions to metal nanowires in the presence complexes comprising metal-metal bonds, are capable of producing long, narrow, nanowires useful for electronics and optical applications.
    Type: Grant
    Filed: April 23, 2012
    Date of Patent: August 26, 2014
    Assignee: Carestream Health, Inc.
    Inventor: David R. Whitcomb
  • Publication number: 20140224068
    Abstract: A method for reducing material containing iron oxide in a solid bed in a reduction shaft and converting the material to pre-reduced material in the reduction shaft by introducing pre-reduction gas into the solid bed at a pressure p1. Pre-reduced material is introduced from the reduction shaft into a melter gasifier and there finally reduced by reduction gas under a pressure p2. A top gas at pressure p3 is diverted from above the solid bed out of the reduction shaft. A dust exhaust gas having a pressure p4 is diverted from the solid bed out of the reduction shaft. The relationships p1>p4 and p1>p3, and preferably also p4>p3, apply. A device carries out such a method.
    Type: Application
    Filed: September 10, 2012
    Publication date: August 14, 2014
    Applicant: SIEMENS VAI METALS TECHNOLOGIES
    Inventors: Hado Heckmann, Robert Millner, Gerald Rosenfellner
  • Patent number: 8801971
    Abstract: Provided are a copper conductor film and manufacturing method thereof, and patterned copper conductor wiring, which have superior conductivity and wiring pattern formation, and with which there is no decrease in insulation between circuits, even at narrow wiring widths and narrow inter-wiring spacing.
    Type: Grant
    Filed: December 17, 2008
    Date of Patent: August 12, 2014
    Assignee: Hitachi Chemical Company, Ltd.
    Inventors: Hideo Nakako, Kazunori Yamamoto, Yasushi Kumashiro, Youichi Machii, Shunya Yokozawa, Yoshinori Ejiri, Katsuyuki Masuda
  • Publication number: 20140196571
    Abstract: A process and a device for charging a primary product for pig iron into a smelting unit are provided. According to the process and device, some of the primary product that has been formed by reducing oxidic iron carriers is stored in the hot state in a reservoir tank before being supplied into the storage device or charging device that is directly connected to the smelting unit.
    Type: Application
    Filed: March 6, 2014
    Publication date: July 17, 2014
    Applicant: SIEMENS VAI METALS TECHNOLOGIES GMBH
    Inventors: Thomas EDER, Robert MILLNER, Jan FRIEDEMANN PLAUL, Norbert REIN, Andreas SCHERNEY, Karl ZEHETBAUER
  • Patent number: 8771399
    Abstract: A method and composition for removing sulfur from molten ferrous material, particularly molten iron. The desulfurization agent includes one or more pucks or briquettes of deoxidizing and/or desulfurization agent. The pucks or briquettes of deoxidizing and/or desulfurization agent include at least one deoxidizing metal and at least one ferrous metal.
    Type: Grant
    Filed: March 10, 2010
    Date of Patent: July 8, 2014
    Assignee: Magnesium Technologies Corporation
    Inventor: Thomas H. Bieniosek
  • Patent number: 8758476
    Abstract: Provided are a method of producing mixed powder comprising noble metal powder and oxide powder, wherein powder of ammonium chloride salt of noble metal and oxide powder are mixed, the mixed powder is subsequently roasted, and ammonium chloride is desorbed by the roasting process in order to obtain mixed powder comprising noble metal powder and oxide powder, and mixed powder comprising noble metal powder and oxide powder, wherein chlorine is less than 1000 ppm, nitrogen is less than 1000 ppm, 90% or more of the grain size of the noble metal powder is 20 ?m or less, and 90% or more of the grain size of the oxide powder is 12 ?m or less. Redundant processes in the production of noble metal powder are eliminated, and processes are omitted so that the inclusion of chlorine contained in the royal water and nitrogen responsible for hydrazine reduction reaction is eliminated as much as possible.
    Type: Grant
    Filed: August 18, 2009
    Date of Patent: June 24, 2014
    Assignee: JX Nippon Mining & Metals Corporation
    Inventors: Atsutoshi Arakawa, Kazuyuki Satoh, Atsushi Sato
  • Patent number: 8758478
    Abstract: A method for cyclically preparing titanium sponge and coproducing sodium cryolite using sodium fluotitanate as an intermediate material, which includes the following steps: A) adding hydrofluoric acid to titaniferous iron concentrate to enable a reaction to form fluotitanic acid; B) adding sodium carbonate and sodium hydroxide to the fluotitanic acid to enable a reaction to form the sodium fluotitanate; C) putting the sodium fluotitanate into a reactor, adding aluminum to react with the sodium fluotitanate to form the titanium sponge and sodium cryolite; D) extracting the sodium cryolite and sending it to a rotary reaction kettle together with concentrated sulphuric acid to enable a reaction to form hydrogen fluoride gas and sodium sulphate, aluminum sodium sulphate; collecting the hydrogen fluoride gas and dissolving it into water to obtain a hydrofluoric acid solution; E) recycling the obtained hydrofluoric acid to Step A to leach the titaniferous iron concentrate.
    Type: Grant
    Filed: December 8, 2012
    Date of Patent: June 24, 2014
    Assignee: Shenzhen Sunxing Light Alloys Materials Co., Ltd.
    Inventors: Xuemin Chen, Yueming Yu, Qingdong Ye, Jun Yang, Zhi Zhou, Xinyi Chen
  • Publication number: 20140165786
    Abstract: A method for removing metal and/or precious metal-containing depositions from substrates, wherein said substrate is subjected to treatment with an organo amine protectant component P and an inorganic active component A. Component P may be formed in situ by reaction with component R. Component P is an organic amine and/or organic amine hydrochloride (preferably diisopropylamine hydrochloride), component A is an inorganic compound (preferably inorganic acid or a mixture thereof) and component R is an organic compound that can be split along the C- N bond by the component A into an organic amine (preferably di-methylformamide or N-methyl pyrrolidone). The metals in the form of organo-metallic complexes can be isolated and/or separated by means of different chemical reactions (preferably reduction reactions) and/or biosorption (preferably with seaweed or yeast).
    Type: Application
    Filed: August 29, 2012
    Publication date: June 19, 2014
    Inventor: Petr Dedek
  • Patent number: 8753421
    Abstract: A method for cyclically preparing titanium sponge and coproducing potassium cryolite using potassium fluotitanate as an intermediate material, which includes the following steps: A) adding hydrofluoric acid to titaniferous iron concentrate to enable a reaction to form fluotitanic acid; B) adding potassium sulphate to the fluotitanic acid to enable a reaction to form the potassium fluotitanate; C) putting the potassium fluotitanate into a reactor, adding aluminum to react with the potassium fluotitanate to form the titanium sponge and potassium cryolite; D) extracting the potassium cryolite and sending it to a rotary reaction kettle together with concentrated sulphuric acid to enable a reaction to form hydrogen fluoride gas and potassium sulphate, aluminum potassium sulphate; collecting the hydrogen fluoride gas and dissolving it into water to obtain a hydrofluoric acid aqueous solution; E) recycling the obtained hydrofluoric acid aqueous solution to Step A to leach the titaniferous iron concentrate.
    Type: Grant
    Filed: December 8, 2012
    Date of Patent: June 17, 2014
    Assignee: Shenzhen Sunxing Light Alloys Materials Co., Ltd.
    Inventors: Xuemin Chen, Yueming Yu, Qingdong Ye, Jun Yang, Zhi Zhou, Xinyi Chen
  • Publication number: 20140144555
    Abstract: This invention provides a technique for rendering bio-toxicity such as allergy toxicity derived from Ni trace impurity, i.e., nickel toxicity, which is unavoidably present in a bio-Co—Cr—Mo alloy or an Ni-free stainless steel alloy unharmful, characterized in that an element selected from the group consisting of the group 4, 5 and 13 elements of the periodic table, particularly an element selected from the group consisting of the group 4 elements of the periodic table, is added to the alloy composition. The additive element is preferably an element selected from the group consisting of zirconium and titanium, more preferably zirconium.
    Type: Application
    Filed: May 2, 2013
    Publication date: May 29, 2014
    Applicant: IWATE UNIVERSITY
    Inventor: Iwate University
  • Publication number: 20140130639
    Abstract: A method reduces carbon dioxide resulting from a steel production process. The carbon dioxide is reacted with an electropositive metal in combustion to produce carbon monoxide. The resultant carbon monoxide is fed back into the steel production process. In this method, the carbon monoxide can be used in a direct reduction method as a reduction gas or can be fed to a blast furnace process. The reacted metal can also be recovered by electrochemical conversion from its oxides or salts. In particular, a form of regenerative energy can be used to recycle the electropositive metal.
    Type: Application
    Filed: June 12, 2012
    Publication date: May 15, 2014
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Manfred Baldauf, Günter Schmid
  • Publication number: 20140127094
    Abstract: A process is provided for stabilizing a sulfate and/or sulfide-rich waste material, comprising metal sulfide minerals, and sequestering CO2 comprises exposing the material to a CO2-enriched gas mixture, reacting the CO2-enriched gas mixture with the metal sulfide minerals and forming a CO2-depleted gas mixture and a carbon-containing compound and at least one product selected from the group consisting of a purified metal or a metal-rich compound suitable for smelting or refining, sulfuric acid, sulfur and sulfurous acid, and system and apparatus therefor.
    Type: Application
    Filed: November 4, 2013
    Publication date: May 8, 2014
    Applicant: Strategic Metals Ltd.
    Inventor: William Douglas Eaton