Producing Solid Particulate Free Metal Directly From Liquid Metal (e.g., Liquid Comminuting, Etc.) Patents (Class 75/331)
  • Patent number: 11021797
    Abstract: The invention relates to a stabilized lithium metal powder and to a method for producing the same, the stabilized, pure lithium metal powder having been passivated in an organic inert solvent under dispersal conditions with fatty acids or fatty acid esters according to the general formula (I) R—COOR?, in which R stands for C10-C29 groups and R? for H or C1-C8 groups.
    Type: Grant
    Filed: April 14, 2020
    Date of Patent: June 1, 2021
    Assignee: Albemarle Germany GmbH
    Inventor: Ulrich Wietelmann
  • Patent number: 10655229
    Abstract: The invention relates to a stabilized lithium metal powder and to a method for producing the same, the stabilized, pure lithium metal powder having been passivated in an organic inert solvent under dispersal conditions with fatty acids or fatty acid esters according to the general formula (I) R—COOR?, in which R stands for C10-C29 groups and R? for H or C1-C8 groups.
    Type: Grant
    Filed: May 15, 2017
    Date of Patent: May 19, 2020
    Assignee: Albemarle Germany GmbH
    Inventor: Ulrich Wietelmann
  • Patent number: 10618112
    Abstract: A granulated material having an improved size distribution and a method and apparatus for the production of such a granular material where the grain size and grain size distribution is controlled by the use of a rotating distributor. The rotating distributor includes an upper inlet opening, sidewalls, a bottom and at least one row of openings at the lower end of the sidewalls. The openings in the sidewalls have a size of at least 5 mm in the smallest dimension.
    Type: Grant
    Filed: September 4, 2014
    Date of Patent: April 14, 2020
    Assignee: UVAN HOLDING AB
    Inventor: Per-Ake Lundstrom
  • Patent number: 10290866
    Abstract: Stabilized lithium powder according to an embodiment of this disclosure includes powder particles satisfying a relation of C?0.90, where C represents average circularity of the powder particles. And a lithium secondary battery according to an embodiment of this disclosure comprises a negative electrode doped with lithium from the stabilized lithium powder for a lithium ion second battery according to an embodiment of this disclosure, a positive electrode, and an electrolyte.
    Type: Grant
    Filed: October 5, 2015
    Date of Patent: May 14, 2019
    Assignee: TDK CORPORATION
    Inventors: Tomohiko Hasegawa, Masahiro Tsuchiya, Atsushi Sano
  • Patent number: 10160036
    Abstract: The invention relates to particulate lithium metal formations having a substantially spherical geometry and a core composed of metallic lithium, which are enclosed with an outer passivating but ionically conductive layer containing nitrogen. The invention further relates to a method for producing lithium metal formations by reacting lithium metal with one or more passivating agent(s) containing nitrogen, selected from the groups N2, NxHy with x=1 or 2 and y=3 or 4, or a compound containing only the elements C, H, and N, and optionally Li, at temperatures in the range between 60 and 300° C., preferably between 100 and 280° C., and particularly preferably above the melting temperature of lithium of 180.5° C., in an inert organic solvent under dispersion conditions or in an atmosphere that contains a gaseous coating agent containing nitrogen.
    Type: Grant
    Filed: April 17, 2014
    Date of Patent: December 25, 2018
    Assignee: ALBEMARLE GERMANY GMBH
    Inventors: Ulrich Wietelmann, Christoph Hartnig, Ute Emmel, Vera Nickel
  • Patent number: 9670369
    Abstract: A visible-light-responsive photocatalyst powder includes a tungsten oxide powder. The tungsten oxide powder has color whose a* is ?5 or less, b* is ?5 or more, and L* is 50 or more when the color of the powder is expressed by an L*a*b* color system. Further, the tungsten oxide powder has a BET specific surface area in a range of 11 to 820 m2/g.
    Type: Grant
    Filed: September 5, 2008
    Date of Patent: June 6, 2017
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA MATERIALS CO., LTD.
    Inventors: Kayo Nakano, Akira Sato, Yasuhiro Shirakawa, Keiichi Fuse, Masami Okamura, Shinya Kasamatsu
  • Patent number: 9420798
    Abstract: Disclosed is a process for preparing silver ions (Ag+) comprising treating element metal silver (Ag0) under high temperature and high pressure, and quickly cooling to directly obtain the silver ions (Ag+).
    Type: Grant
    Filed: November 6, 2009
    Date of Patent: August 23, 2016
    Inventor: Raymond Chin
  • Patent number: 9142350
    Abstract: Particles of iron and nickel are added to a flowing plasma stream which does not chemically alter the iron or nickel. The iron and nickel are heated and vaporized in the stream, and then a cryogenic fluid is added to the stream to rapidly cause the formation of nanometer size particles of iron and nickel. The particles are separated from the stream. The particles are preferably formed as single crystals in which the iron and nickel atoms are organized in a tetragonal L10 crystal structure which displays magnetic anisotropy. A minor portion of an additive, such as titanium, vanadium, aluminum, boron, carbon, phosphorous, or sulfur, may be added to the plasma stream with the iron and nickel to enhance formation of the desired crystal structure.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: September 22, 2015
    Assignee: GM Global Technology Operations LLC
    Inventor: Frederick E. Pinkerton
  • Publication number: 20150101454
    Abstract: A method for manufacturing metal powder includes: melting at least a portion of a metal starting material in a reaction vessel by utilizing plasma so as to form molten metal; evaporating the molten metal so as to produce a metal vapor; and transferring the metal vapor from the reaction vessel to a cooling tube together with a carrier gas supplied into the reaction vessel so as to cool the metal vapor, and condensing the metal vapor in the cooling tube, thereby producing metal powder. The method further includes supplying an oxygen gas into the reaction vessel.
    Type: Application
    Filed: April 10, 2013
    Publication date: April 16, 2015
    Inventors: Fumiyuki Shimizu, Masayuki Maekawa, Tomotaka Nishikawa
  • Patent number: 8999206
    Abstract: Metal nanoparticles having improved migration resistance are provided. The present invention relates to a method for manufacturing composite nanoparticles including obtaining composite nanoparticles containing at least silver and copper in a single particle by heat treating a mixture containing an organic silver compound and an organic copper compound at a temperature of 150° C. or more in a non-oxidative atmosphere in the presence of a tertiary amine compound represented by the general formula R1R2R3N (wherein R1 through R3 are optionally substituted alkyl groups or aryl groups that may be the same or different, R1 through R3 may be linked in a ring, and the number of carbon atoms in each of R1 through R3 is 5 through 18 and may be the same or different).
    Type: Grant
    Filed: August 6, 2009
    Date of Patent: April 7, 2015
    Assignees: Osaka Municipal Technical Research Institute, Daiken Chemical Co., Ltd.
    Inventors: Masami Nakamoto, Mari Yamamoto, Yukiyasu Kashiwagi, Yukio Yoshida, Hiroshi Kakiuchi, Shinsuke Matsumura
  • Publication number: 20150059526
    Abstract: A system for metal powder atomisation comprising a refractory lined melting furnace (1) configured to melt metal into a liquid metal bath (6), in which furnace (1) a drain (3) is arranged for draining liquid metal from the bottom of the furnace. The drain (3) is configured to be closed by a stopping member. The system comprises an atomisation chamber (2) configured to receive and atomise liquid metal from the melting furnace (1). The system also comprises removal means controllable from the bottom region of the furnace (1) for removing the stopping member without interfering with the surface of the liquid metal bath (6). The removal means and the stopping member are configured such that the stopping member is removable independently of the temperature of the liquid metal bath (6) using the removal means.
    Type: Application
    Filed: February 22, 2013
    Publication date: March 5, 2015
    Inventors: Peter Vikner, Patrik Lönnberg
  • Publication number: 20150010769
    Abstract: A method for preparing core-shell and hollow silver particles is provided. In the method silver salts and glycine nitrate or starch are mixed with solvent to form precursor solution. The mole percentage of the silver salts over the silver salts plus glycine nitrate or starch is 5 to 50 mol %. The precursor solution is then atomized to form precursor droplets. The precursor droplets are heated by pyrolysis to form silver particles. The composition of the precursor solution can be adjusted to finely manipulate the structure of the silver particles.
    Type: Application
    Filed: November 22, 2013
    Publication date: January 8, 2015
    Applicant: National Taiwan University of Science and Technology
    Inventors: Shao-Ju Shih, I-Chen Chien, Yu-Hsuan Wu
  • Patent number: 8920534
    Abstract: A method of fabricating a material having a high concentration of a carbide constituent. The method may comprise adding a carbide source to a biocompatible material in which a weight of the carbide source is at least approximately 10% of the total weight, heating the carbide source and the biocompatible material to a predetermined temperature to melt the biocompatible material and allow the carbide source to go into solution to form a molten homogeneous solution, and impinging the molten homogeneous solution with a high pressure fluid to form spray atomized powder having carbide particles. The size of a particle of carbide in the atomized powder may be approximately 900 nanometers or less. The biocompatible material may be cobalt chrome, the carbide source may be graphite, and the fluid may be a gas or a liquid.
    Type: Grant
    Filed: March 26, 2007
    Date of Patent: December 30, 2014
    Assignee: Howmedica Osteonics Corp.
    Inventors: Daniel E. Lawrynowicz, Aiguo Wang, Zongtao Zhang, Haitong Zeng
  • Publication number: 20140202286
    Abstract: A metal powder production method and a metal powder production device capable of reducing the size of the device, reducing costs, and obtaining spherical metal powder are provided. Supply means supplies a downward flow of molten metal, and a plurality of jet burners emit flame jets to the downward flow of the molten metal supplied from the supply means. Each of the jet burners is provided to emit the flame jet from the same angle and from each of positions rotationally symmetrical with each other with respect to the downward flow of the molten metal.
    Type: Application
    Filed: May 18, 2012
    Publication date: July 24, 2014
    Applicants: HARD INDUSTRY YUGEN KAISHA, TOHOKU TECHNO ARCH CO., LTD.
    Inventors: Yoshihiko Yokoyama, Takuichi Yamagata, Torao Yamagata
  • Patent number: 8784702
    Abstract: Copper-containing nanoparticles with excellent oxidation resistance is provided. The present invention relates to a method for manufacturing copper-containing nanoparticles including obtaining copper-containing nanoparticles that contain an organic component by heat treating an organic copper compound at a temperature equal to or higher than a decomposition initiation temperature of the compound and lower than a complete decomposition temperature of the compound in a non-oxidative atmosphere in the presence of an organic material containing a 1,2-alkanediol having 5 or more carbon atoms and/or a derivative thereof.
    Type: Grant
    Filed: August 6, 2009
    Date of Patent: July 22, 2014
    Assignees: Osaka Municipal Technical Research Institute, Daiken Chemical Co., Ltd.
    Inventors: Masami Nakamoto, Mari Yamamoto, Yukiyasu Kashiwagi, Yukio Yoshida, Hiroshi Kakiuchi, Shinsuke Matsumura
  • Publication number: 20140199202
    Abstract: The present invention is directed to a method of manufacture of metal or alloy powders that uses liquid phase reduction of a metal halide, or a mixture of metal halides, to produce a metal particle coated in salts produced as a reaction byproduct. The reaction conditions can be chosen to select a range of metal particle sizes, and the salt coating prevents oxidation (or reaction with other atmospheric gases) and permits a range of applications hitherto difficult to achieve using metal powders.
    Type: Application
    Filed: March 17, 2014
    Publication date: July 17, 2014
    Applicant: Boston Electronic Materials, LLC
    Inventor: Andrew Matheson
  • Publication number: 20140190311
    Abstract: A method for forming a zinc alloy powder for use in an alkaline battery includes: obtaining a zinc molten metal in which zinc is melted; melting a zinc-aluminum master alloy in the zinc molten metal, thereby obtaining an aluminum-contained zinc alloy molten metal; and producing an aluminum-contained zinc alloy powder by powdering the aluminum-contained zinc alloy molten metal.
    Type: Application
    Filed: December 12, 2013
    Publication date: July 10, 2014
    Applicant: PANASONIC CORPORATION
    Inventors: Kenji YAMAMOTO, Shunsuke UZUKA
  • Patent number: 8765053
    Abstract: A method for producing a Sn based alloy (15) comprising a metal matrix of a metal matrix material, wherein the metal matrix material comprises Sn, and inclusions of a compound material, further referred to as compound inclusions, wherein the compound material contains one element or a combination of elements of the group Ti, V, Zr, Hf, further referred to as dopant, and one or a plurality of other elements, in particular Sn, Cu and/or Nb. Particles of the metal matrix material, further referred to as matrix particles, are mixed with particles of the compound material, further referred to as compound particles, and the matrix particles and the compound particles are compacted during and/or after their mixing. A Sn based alloy containing finer compound inclusion of a dopant can be prepared, in order to produce Nb3Sn superconductor material with a superior current carrying capacity.
    Type: Grant
    Filed: January 27, 2010
    Date of Patent: July 1, 2014
    Assignee: Bruker BioSpin AG
    Inventor: Florin Buta
  • Patent number: 8734562
    Abstract: A nickel powder with an average particle size of 0.05 to 1.0 ?m, which is composed of nickel particles having an oxidized surface layer and containing sulfur, wherein the sulfur content with respect to the total weight of the powder is 100 to 2000 ppm, and the intensity of a peak identified to sulfur bonded to nickel in surface analysis by ESCA of the nickel particles varies in a direction toward the center from the surface of the particles, and this intensity has its maximum at a location deeper than 3 nm from the particle outermost surface. This nickel powder is manufactured by bringing a nickel powder containing sulfur and dispersed in a non-oxidizing gas atmosphere into contact with an oxidizing gas at a high temperature.
    Type: Grant
    Filed: January 16, 2012
    Date of Patent: May 27, 2014
    Assignee: Shoei Chemical Inc.
    Inventors: Yuji Akimoto, Kazuro Nagashima, Hidenori Ieda, Hitomi Yanagi
  • Patent number: 8679221
    Abstract: A method for producing an alumina template of nanorods, the alumina template, and the nanorods are provided for overcoming the problems of the conventional alumina template having anodic aluminum oxide that may be peeled off from a substrate or forming a non-conductive oxide easily, and the alumina template includes a conductive substrate composed of an active metal and an inert metal, so that the alumina template can be attached onto the active metal and inert metal at the same time, and the active metal can be used for securing the alumina template and supporting the alumina template on the inert metal, and the anodic aluminum oxide attached onto the inert metal can be used for providing a better conductivity, such that a stable and highly conductive alumina template can be produced.
    Type: Grant
    Filed: December 13, 2011
    Date of Patent: March 25, 2014
    Assignee: Southern Taiwan University
    Inventors: Hsyi-en Cheng, Bo-jiun Yeh
  • Patent number: 8673051
    Abstract: The present invention is directed to a method of manufacture of metal or alloy powders that uses liquid phase reduction of a metal halide, or a mixture of metal halides, to produce a metal particle coated in salts produced as a reaction byproduct. The reaction conditions can be chosen to select a range of metal particle sizes, and the salt coating prevents oxidation (or reaction with other atmospheric gases) and permits a range of applications hitherto difficult to achieve using metal powders.
    Type: Grant
    Filed: January 16, 2012
    Date of Patent: March 18, 2014
    Assignee: Boston Electronic Materials LLC
    Inventor: Andrew Matheson
  • Patent number: 8641800
    Abstract: A method of alloying an iron majority compound with an oxide is provided. The method may include: heating the iron majority compound to a molten state; adding an oxide containing manganese to the molten iron majority compound; adding slag forming materials and reducers to the molten iron majority compound; controlling the iron majority compound to achieve a desired temperature environment for a desired period of time; and removing slag from the iron majority compound.
    Type: Grant
    Filed: June 27, 2011
    Date of Patent: February 4, 2014
    Inventor: Joseph Boston McMahon
  • Patent number: 8632326
    Abstract: A device for manufacturing finely powdered spherical magnesium includes a gas compressor that compresses argon gas, a gas heating unit that heats the compressed argon gas, and a tundish that receives molten magnesium. The device further includes a reactor having a nozzle injection unit that injects heated argon gas into the reactor, a recovery unit that recovers magnesium powder produced in the reactor, and a first gas cooler that cools the argon gas passing through the recovery unit. The device further includes a filtering unit that filters the cooled argon gas, a buffer tank that receives the filtered argon gas, and a compression blower that adiabatically compresses the argon gas. The device further includes a second gas cooler that cools the compressed argon gas, an adiabatic expansion duct that adiabatically expands the cooled argon gas, supplies the expanded argon gas to the reactor, and cools the magnesium powder.
    Type: Grant
    Filed: May 25, 2011
    Date of Patent: January 21, 2014
    Inventor: Kyu Yeub Yeon
  • Publication number: 20130309123
    Abstract: A transition element-doped aluminum powder metal and a method of making this powder metal are disclosed. The method of making includes forming an aluminum-transition element melt in which a transition element content of the aluminum-transition element melt is less than 6 percent by weight. The aluminum-transition element melt then powderized to form a transition element-doped aluminum powder metal. The powderization may occur by, for example, air atomization.
    Type: Application
    Filed: December 14, 2011
    Publication date: November 21, 2013
    Applicant: GKN SINTER METALS, LLC
    Inventors: Donald Paul Bishop, Richard L. Hexemer, JR., Ian W. Donaldson, Randy William Cooke
  • Publication number: 20130233129
    Abstract: A method and apparatus for producing titanium metal powder from a melt. The apparatus includes an atomization chamber having an inner wall that is coated with or formed entirely of CP-Ti to prevent contamination of titanium metal powder therein. The inner surfaces of all components of the apparatus in a flow path following the atomization chamber may also be coated with or formed entirely of CP-Ti.
    Type: Application
    Filed: March 8, 2012
    Publication date: September 12, 2013
    Inventors: William M. Hanusiak, Dale R. McBride
  • Patent number: 8529673
    Abstract: A new lithium material with high surface area, a method of its production, and a process of using the given material in purification of hydrogen or inert gases stream from active impurities. The material is manufactured in a form of granules of 0.2-2.5 mm in diameter with the structure of a dendritic carcass and is characterized with high sorption capacity and resistance to chemical shocks.
    Type: Grant
    Filed: April 22, 2010
    Date of Patent: September 10, 2013
    Assignee: Reactive Metals Ltd.
    Inventor: Konstantin Chuntonov
  • Publication number: 20130183189
    Abstract: A zirconium-doped aluminum powder metal and a method of making this powder metal are disclosed. The method of making includes forming an aluminum-zirconium melt in which a zirconium content of the aluminum-zirconium melt is less than 2.0 percent by weight. The aluminum-zirconium melt then powderized to form a zirconium-doped aluminum powder metal. The powderization may occur by, for example, air atomization.
    Type: Application
    Filed: October 4, 2011
    Publication date: July 18, 2013
    Applicant: GKN SINTER METALS, LLC
    Inventors: Donald Paul Bishop, Richard L. Hexemer, JR., Ian W. Donaldson, Randy William Cooke
  • Publication number: 20130145900
    Abstract: A method for producing an alumina template of nanorods, the alumina template, and the nanorods are provided for overcoming the problems of the conventional alumina template having anodic aluminum oxide that may be peeled off from a substrate or forming a non-conductive oxide easily, and the alumina template includes a conductive substrate composed of an active metal and an inert metal, so that the alumina template can be attached onto the active metal and inert metal at the same time, and the active metal can be used for securing the alumina template and supporting the alumina template on the inert metal, and the anodic aluminum oxide attached onto the inert metal can be used for providing a better conductivity, such that a stable and highly conductive alumina template can be produced.
    Type: Application
    Filed: December 13, 2011
    Publication date: June 13, 2013
    Inventors: Hsyi-en CHENG, Bo-jiun YEH
  • Publication number: 20130142687
    Abstract: Provided are alloy flakes for rare earth sintered magnet, which achieve a high rare earth component yield after pulverization with respect to before pulverization and a uniform particle size after pulverization, and a method for producing such alloy at high energy efficiency in an industrial scale. The method includes (A) preparing an alloy melt containing R composed of at least one element selected from rare earth metal elements including Y, B, and the balance M composed of Fe, or of Fe and at least one element selected from transition metal elements other than Fe, Si, and C, (B) rapidly cooling/solidifying the alloy melt to not lower than 700° C. and not higher than 1000° C. by strip casting with a cooling roll, and (C) heating and maintaining, in a particular temperature range, alloy flakes separated from the roll by rapid cooling and solidifying in step (B) before the flakes are cooled to not higher than 500° C., to obtain alloy flakes having a composition of 27.0 to 33.0 mass % R, 0.90 to 1.
    Type: Application
    Filed: July 1, 2011
    Publication date: June 6, 2013
    Applicant: SANTOKU CORPORATION
    Inventors: Takuya Onimura, Shinya Tabata
  • Publication number: 20130004363
    Abstract: A new nickel-free sterling silver alloy with superior tarnish resistant, yet substantially similar cold working and mechanical properties is disclosed using a specified mixture of zinc, copper, silicon, iridium, and indium with pure silver. A new and improved method of manufacture involving a four-step process whereby the non-silver components are fabricated in an inert gas or reducing atmosphere into a master alloy of pre-determined composition, and in a final step mixed with a predetermined mass of pure silver to produce the new alloy.
    Type: Application
    Filed: July 2, 2012
    Publication date: January 3, 2013
    Inventors: Arthur Taylor, Bernard Madden
  • Patent number: 8329071
    Abstract: Multicomponent nanoparticles materials and apparatuses and processes therefor are disclosed. In one aspect of the disclosure, separate particles generated from solution or suspension or by flame synthesis or flame spray pyrolysis, and the resultant particles are mixed in chamber prior to collection or deposition. In another aspect of the disclosure, nanoparticles are synthesized in stagnation or Bunsen flames and allowed to deposit by thermophoresis on a moving substrate. These techniques are scalable allowing mass production of multicomponent nanoparticles materials and films. The foregoing techniques can be used to prepare composites and component devices comprising one or more lithium based particles intimately mixed with carbon particles.
    Type: Grant
    Filed: December 8, 2009
    Date of Patent: December 11, 2012
    Assignee: Hestia Tec, LLC
    Inventors: Hai Wang, Denis Phares
  • Publication number: 20120304821
    Abstract: Hard particles for blending as a starting material in a sintered alloy contain 20 to 40 mass % of molybdenum, 0.5 to 1.0 mass % of carbon, 5 to 30 mass % of nickel, 1 to 10 mass % of manganese, 1 to 10 mass % of chromium, 5 to 30 mass % of cobalt, 0.05 to 2 mass % of yttrium, and the balance being inadvertent impurities and iron.
    Type: Application
    Filed: October 13, 2010
    Publication date: December 6, 2012
    Applicants: FINE SINTER CO., LTD, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kimihiko Ando, Tadayoshi Kikko, Yusaku Yoshida
  • Publication number: 20120236997
    Abstract: An alloy comprising at least two refractory metals and a method for forming such alloy are proposed. In the alloy, a first refractory metal such as tantalum forming a minor portion of the alloy is completely dissolved in a second refractory metal such as tungsten forming a major portion of the alloy. The alloy may be formed by providing the two refractory metals in a common crucible (step S1), melting both refractory metals by application of an electron beam (step S2), mixing the molten refractory metals (step S3) and solidifying the melt (step S4). Due to the possible complete mixing of the refractory metal components in a molten state, improved material properties of the solidified alloy may be achieved. Furthermore, due to the use of tantalum instead of rhenium together with tungsten, a cheap and resistant refractory metal alloy may be produced, which alloy may be used for example for forming a focal track region of an X-ray anode.
    Type: Application
    Filed: November 30, 2010
    Publication date: September 20, 2012
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Paul Xu, Kevin Kraft, Min He, Gerald James Carlson
  • Publication number: 20120167717
    Abstract: The present invention relates to a method for manufacturing an amorphous alloy by using liquid pig iron. The exemplary embodiment of the present invention provides a method for manufacturing an amorphous alloy, including providing liquid pig iron, adding an alloy material to the liquid pig iron, and solidifying the liquid pig iron.
    Type: Application
    Filed: December 28, 2009
    Publication date: July 5, 2012
    Applicant: POSCO
    Inventors: Sang-Ho Yi, Seung Dueg Choi, Seong Hoon Yi
  • Publication number: 20120167716
    Abstract: The present invention is directed to a method of manufacture of metal or alloy powders that uses liquid phase reduction of a metal halide, or a mixture of metal halides, to produce a metal particle coated in salts produced as a reaction byproduct. The reaction conditions can be chosen to select a range of metal particle sizes, and the salt coating prevents oxidation (or reaction with other atmospheric gases) and permits a range of applications hitherto difficult to achieve using metal powders.
    Type: Application
    Filed: January 16, 2012
    Publication date: July 5, 2012
    Inventor: Andrew Matheson
  • Patent number: 8187564
    Abstract: Provided is a process for producing a boron added silicon (purified silicon) in an energy saving mode from a reduced silicon obtained by reducing a silicon halide with a metal aluminium. The production process of the invention comprises reducing a silicon halide with a metal aluminium to give a reduces silicon, heating and melting the resulting reduced silicon, and adding boron thereto followed by solidification for purification under the condition of a temperature gradient provided in one direction in a mold. Preferably, after washed with an acid, the reduced silicon is heated and molten, and boron is added thereto. After the reduced silicon is heated and molten under reduced pressure, boron is added thereto. After heated and molten, the reduced silicon is purified by solidification in one direction, then heated and molten, and thereafter boron is added thereto.
    Type: Grant
    Filed: February 13, 2009
    Date of Patent: May 29, 2012
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Tomohiro Megumi, Hiroshi Tabuchi
  • Publication number: 20120111147
    Abstract: The invention relates to a method of processing metal powder consisting a plurality of metal powder pellets, comprising the following steps: heating the metal powder pellets until they are in a liquid state, causing a collision of the liquefied metal power pellets with a heated impact body, the temperature of which is higher than the melting point of the metal powder pellets, to form metal powder pellets of reduced diameter, cooling the metal powder pellets of reduced diameter formed in the collision and collecting the cooled metal powder pellets of reduced diameter in a collecting vessel.
    Type: Application
    Filed: May 28, 2010
    Publication date: May 10, 2012
    Inventor: Arno Friedrichs
  • Patent number: 8118904
    Abstract: A metal powder manufacturing device for manufacturing a metal powder includes a feed for supplying a molten metal, a fluid spout unit, and a course modification unit. The fluid spout unit further includes a channel and an orifice. The channel is provided below the feed, allowing passing of the molten metal supplied from the feed. The orifice is opened at a bottom end of the channel, spouting a fluid into the channel. The above course modification unit is provided below the fluid spout unit, and forcibly changes the traveling direction of a dispersion liquid. This dispersion liquid is composed of multiple fine droplets dispersed into the fluid. The above droplets are a resultant of a breakup caused by a contact between the molten metal and the fluid ejected from the orifice. Here, the dispersion liquid is transported so that the droplets is cooled and solidified in the dispersion liquid in order to manufacture the metal powder.
    Type: Grant
    Filed: August 3, 2011
    Date of Patent: February 21, 2012
    Assignee: Seiko Epson Corporation
    Inventor: Atsushi Watanabe
  • Publication number: 20120031234
    Abstract: A method of production of Zinc dust, which includes melting Zinc products in a melting furnace on a semi-continuous basis, transferring at least a part of the molten Zinc products to a vaporizing furnace, vaporizing the molten Zinc in the vaporizing furnace into Zinc vapour on a substantially continuous basis, transferring Zinc vapour from the vaporizing furnace to a condenser, and condensing the Zinc vapour to form Zinc dust.
    Type: Application
    Filed: August 6, 2009
    Publication date: February 9, 2012
    Applicant: ZINCHEM, A DIVISION OF ZIMCO GROUP (PTY) LTD.
    Inventors: Michael Hanneman, Roy William Heslop
  • Patent number: 8110020
    Abstract: An annealed pre-alloyed water atomised iron-based powder suitable for the production of pressed and sintered components having high wear resistance is provided. The iron-based powder comprises 10-below 18% by weight of Cr, 0.5-5% by weight of each of at least one of Mo, W, V and Nb, and 0.5-2%, preferably 0.7-2% and most preferably 1-2% by weight of C. The powder has a matrix comprising less than 10% by weight of Cr, and comprises large M23C6-type carbides in combination with M7C3-type carbides. A method for production of the iron-based powder, a method for producing a pressed and sintered component having high wear resistance, and a component having high wear resistance are provided.
    Type: Grant
    Filed: September 24, 2008
    Date of Patent: February 7, 2012
    Assignee: Höganäs AB (PUBL)
    Inventors: Ola Bergman, Paul Dudfield Nurthen
  • Patent number: 8101005
    Abstract: A process is described for making metal nanoparticles comprising (a) forming a liquid melt of a first metal having the composition of the desired nanoparticles and a second metal; (b) quenching the melt to form a solid; and (c) removing the second metal from the solid and forming the nanoparticles comprising the first metal.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: January 24, 2012
    Assignee: Cima NanoTech Israel Ltd.
    Inventors: Arkady Garbar, Dmitry Lekhtman, Thomas Zak, Fernando de la Vega
  • Patent number: 8084140
    Abstract: The invention provides an aqueous solution-based method for producing nanosized silver platelets, which employs the controlled mixing of a silver ion solution, a reducing solution, and an acidic solution in the presence of palladium ions.
    Type: Grant
    Filed: December 1, 2006
    Date of Patent: December 27, 2011
    Assignee: Clarkson University
    Inventors: Dan V. Goia, Brendan P. Farrell
  • Publication number: 20110265603
    Abstract: A method for producing granular iron comprising: charging agglomerates formed from a raw material mixture containing an iron oxide-containing substance and a carbonaceous reducing agent onto a carbonaceous material spread on a hearth of a furnace; and heating the agglomerates to thereby reduce and melt iron oxides in the agglomerates, wherein the temperature of the agglomerates in the furnace is set in a range between 1200° C. and 1500° C.; the oxygen partial pressure in atmospheric gas under which the agglomerates are heated is set to 2.0×10?13 atm or more at standard state; and the linear speed of the atmospheric gas in the furnace is set to 4.5 cm/second or more.
    Type: Application
    Filed: January 15, 2010
    Publication date: November 3, 2011
    Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO
    Inventors: Takeshi Sugiyama, Shuzo Ito, Osamu Tsuge, Shoichi Kikuchi
  • Patent number: 8034155
    Abstract: Nanosilver porous material particles and method for manufacturing the same are disclosed. The nanosilver porous material particles include nanosilver particles distributed on the surface thereof. First, a nanosilver precursor is dissolved in water and a proper quantity of a fixation agent is added to form a solution. Next, a proper quantity of the porous material particles is added into the solution and that is mixed well to form a suspension. Next, the suspension is allowed to stand for a predetermined period of time, and then the suspension is filtered to separate the porous material particles from the solution. Finally, the resulting porous material particles are baked and dried.
    Type: Grant
    Filed: July 17, 2008
    Date of Patent: October 11, 2011
    Assignee: Apex Nanotek Corporation
    Inventors: Chiao-Cheng Chang, Austin Tsao
  • Patent number: 8016909
    Abstract: The present invention provides a jetting process for the production of flakes with uniform size distribution to be used in pigments comprising the steps of ejecting molten metal from a jet head and collecting droplets of metal on a solid collecting substrate or collecting droplets of metal in or on a collecting substrate.
    Type: Grant
    Filed: August 12, 2005
    Date of Patent: September 13, 2011
    Assignee: Dunwilco (1198) Limited
    Inventor: Ian Robert Wheeler
  • Publication number: 20110217551
    Abstract: The present invention provides a jetting process for the production of flakes with uniform size distribution to be used in pigments comprising the steps of ejecting molten metal from a jet head and collecting droplets of metal on a solid collecting substrate or collecting droplets of metal in or on a collecting substrate.
    Type: Application
    Filed: May 11, 2011
    Publication date: September 8, 2011
    Applicant: DUNWILCO (1198) LIMITED
    Inventor: Ian Robert Wheeler
  • Patent number: 8012408
    Abstract: A metal powder manufacturing device for manufacturing a metal powder includes a feed for supplying a molten metal, a fluid spout unit, and a course modification unit. The fluid spout unit further includes a channel and an orifice. The channel is provided below the feed, allowing passing of the molten metal supplied from the feed. The orifice is opened at a bottom end of the channel, spouting a fluid into the channel. The above course modification unit is provided below the fluid spout unit, and forcibly changes the traveling direction of a dispersion liquid. This dispersion liquid is composed of multiple fine droplets dispersed into the fluid. The above droplets are a resultant of a breakup caused by a contact between the molten metal and the fluid ejected from the orifice. Here, the dispersion liquid is transported so that the droplets is cooled and solidified in the dispersion liquid in order to manufacture the metal powder.
    Type: Grant
    Filed: March 29, 2007
    Date of Patent: September 6, 2011
    Assignee: Seiko Epson Corporation
    Inventor: Atsushi Watanabe
  • Publication number: 20110209577
    Abstract: The invention relates to an apparatus and a process for granulating a metal melt. The apparatus substantially comprises a round water tank, into which water is injected in a tangential direction with the aid of a number of nozzles, so that the water in the tank rotates and forms a parabolic surface. The nozzles are arranged such that they are distributed in height and around the circumference of the tank wall. The uppermost nozzle is located in the region of the surface of the water and produces a stream of water or fan of water lying in the surface of the water. For granulating a metal melt, it is poured continuously from a melting crucible into the stream of water or fan of water of the uppermost nozzle.
    Type: Application
    Filed: October 29, 2009
    Publication date: September 1, 2011
    Applicant: UMICORE AG & CO. KG
    Inventors: Veit Koenig, Andreas Huber, Bernd Amend
  • Patent number: 7988759
    Abstract: A method of producing metal powder using a nozzle including a flow path and an orifice includes: storing molten metal in a supply part; passing the molten metal through a tubular member below the supply part and injecting the molten metal from a bottom end of the tubular member into the flow path; subjecting the molten metal to primary breakup via depressurization inside the flow path to yield liquid droplets; and subjecting the liquid droplets to secondary breakup via contact with fluid injected from the orifice to yield further fine shapes, and solidifying them by cooling to obtain the metal powder, wherein the orifice opens toward a bottom end of the flow path, and the depressurization inside the flow path is generated by a stream of the fluid injected from the orifice into the flow path.
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: August 2, 2011
    Assignee: Seiko Epson Corporation
    Inventor: Tokihiro Shimura
  • Patent number: 7931834
    Abstract: A process for the formation of particles of a target material is disclosed, comprising: (i) introducing the target material into a particle formation vessel, and forming a continuous liquid surface of the target material in the particle formation vessel, and an interface between said liquid surface of the target material and additional gaseous contents of said particle formation vessel; (ii) introducing a stream of cryogenic material including solid particles of cryogenic material into the particle formation vessel and into contact with the target material in a liquid state below the continuous liquid surface; (iii) allowing rapid volumetric expansion of the cryogenic material into a gaseous state while in contact with the target material in a liquid state, and release of the expanded gaseous cryogenic material through the continuous liquid surface, and forming liquid droplet particles of the target material; and (iv) collecting the formed particles of the target material.
    Type: Grant
    Filed: February 13, 2007
    Date of Patent: April 26, 2011
    Assignee: Eastman Kodak Company
    Inventors: Rajesh V. Mehta, Robert Link, Michael A. Marcus