Patents Examined by Tima M McGurthy-Banks
-
Patent number: 10526685Abstract: A method of leaching chalcopyrite ores includes the steps of forming agglomerates of fragments of chalcopyrite ores and silver and leaching the agglomerates with suitable leach liquor.Type: GrantFiled: October 8, 2018Date of Patent: January 7, 2020Assignee: Technological Resources Pty. LimitedInventors: Paul Leslie Brown, Ralph Peter Hackl, Stephen Charles Grocott
-
Patent number: 10125413Abstract: To produce manganese containing ferroalloy for steel production, an agglomeration mixture is produced which comprises chromite ore concentrate and manganese ore fines with a grain size smaller than 6-9 mm. The mixture is agglomerated to produce green agglomeration products, such as pellets or other types of agglomerates. The green agglomeration products are sintered in a steel belt sintering furnace to produce either sinter or sintered pellets. The sinter or sintered pellets are smelted in a submerged arc furnace to produce manganese and chromium containing ferroalloy. The ferroalloy produced by the method comprises 6.0-35 w-% manganese and 31-54 w-% chromium.Type: GrantFiled: December 16, 2014Date of Patent: November 13, 2018Assignee: OUTOTEC (FINLAND) OYInventors: Helge Krogerus, Pasi Mäkelä, Visa Kivinen
-
Patent number: 10046388Abstract: Methods for manufacturing a metal foam and a metal foam reinforced back plate may be used to provide high-strength and low weight structural elements in portable information handling systems. A method for manufacturing a metal foam may include selectively adding iridium oxide and ceramic particulate to a light-metal allow to create desired mechanical properties of the metal foam.Type: GrantFiled: February 23, 2016Date of Patent: August 14, 2018Assignee: Dell Products L.P.Inventor: Deeder Mohammad Aurongzeb
-
Patent number: 10041142Abstract: The invention relates to a method for concentrating metals, in particular silver and/or tin and/or lead from scrap containing metal, by treating the material/scrap containing silver and/or tin and/or lead with a sulfonic acid of the formula R—SO2—OH in the presence of an oxidizing agent, wherein R can be an organic group or ammonia.Type: GrantFiled: April 10, 2014Date of Patent: August 7, 2018Inventors: Ulrich Loser, Wolfram Palitzsch
-
Patent number: 9822426Abstract: A process for bio-oxidation of sulfides in mineral ore having a metal such as gold occluded or dispersed within the ore as a sulfide is disclosed. The first step comminutes the ore into particles with a size distribution having a P80 of less than 0.25 inch with minus 106 micron particles in the range of 15% to 40% by weight. Agglomerates are formed by adding to the comminuted ore particles an acidic inoculate solution including water, with the solution further including microorganisms capable of bio-oxidizing the sulfides. The agglomerates are then placed in at least one bio-reactor containment vessel to form an ore bed. The process continues by bio-oxidizing the sulfides in the ore bed; then re-circulating the solution through the ore bed, and continuing the bio-oxidation until a desired bio-oxidation level is achieved. Thereafter, the metal is recovered from the ore.Type: GrantFiled: July 30, 2015Date of Patent: November 21, 2017Inventor: Jody Kelso
-
Patent number: 9739535Abstract: The invention relates to a method for smelting non-ferrous metal sulfides (13) in a suspension smelting furnace and to a suspension smelting furnace. The suspension smelting furnace comprises at least one injection means (18) for injecting at least one of fluid (19) and pulverous matter (20) into a settler (2) of the suspension smelting furnace from at least one of a first side wall structure (8) and a second side wall structure (9) of the settler (2) so that fluid (19) and/or pulverous matter (20) is injected into the settler (2) above a top surface (16) of a layer of melt (15) in the settler (2).Type: GrantFiled: November 12, 2013Date of Patent: August 22, 2017Assignee: Outotec (Finland) OyInventors: Lauri Pesonen, Peter Björklund
-
Patent number: 9637806Abstract: Described herein are methods of recovering silver from solution to produce metallic (i.e., elemental) silver. These methods generally include a step of providing a silver-containing aqueous solution that includes cationic silver species, followed by a step of forming a reaction solution that includes an organic acid, a buffering agent, and the cationic silver species, and a step of generating a reaction product that includes metallic silver by reducing the concentration of the cationic silver species in the reaction solution. Also described herein are metallic or elemental silver produced by these methods.Type: GrantFiled: August 29, 2013Date of Patent: May 2, 2017Assignee: Corning IncorporatedInventors: Benedict Yorke Johnson, Samuel Odei Owusu
-
Patent number: 9163297Abstract: Method of combining industrial processes having inherent carbon capture and conversion capabilities offering maximum flexibility, efficiency, and economics while enabling environmentally and sustainably sound practices. Maximum chemical energy is retained throughout feedstock processing. A hybrid thermochemical cycle couples staged reforming with hydrogen production and chlorination. Hydrogen generated is used to upgrade feedstocks including bitumen, shale, coal, and biomass. Residues of upgrading are chlorinated, metals of interest are removed, and the remainder is reacted with ammonia solution and carbon dioxide to form carbonate minerals. The combination provides emissions free production of synthetic crude oil and derivatives, as well as various metals and fertilizers. Sand and carbonate minerals are potentially the only waste streams. Through this novel processing, major carbon dioxide reduction is afforded byminimizing direct oxidation.Type: GrantFiled: August 7, 2013Date of Patent: October 20, 2015Inventor: Justin Langley
-
Patent number: 9011574Abstract: A method for leaching copper and molybdenum from an ore, residue and/or concentrate containing such, in which more than 1% w/w of the total molybdenum is present as a sulfide and in which more than 1% w/w of the total copper is present as an oxide, the method comprising the steps of: exposing the ore, residue and/or concentrate to an aqueous solution of chlorine (I)-based oxidizing species of a pH of at least 3.0; oxidizing the molybdenum by the chlorine-based oxidizing species thereby providing a treated ore, residue and/or concentrate and a reduced aqueous solution of chlorine-based oxidizing species; leaching the treated ore, residue and/or concentrate by exposing the treated ore, residue and/or concentrate to an aqueous ammoniacal ammonium carbonate solution to form a pregnant leach solution containing both copper and molybdenum; and passing the pregnant leach solution containing both copper and molybdenum to a means for metal recovery.Type: GrantFiled: August 29, 2011Date of Patent: April 21, 2015Assignee: MetaLeach LimitedInventors: Nicholas James Welham, Garry Mervyn Johnston, Matthew Leslie Sutcliffe
-
Patent number: 8728194Abstract: A method for controlling foamed slag in a stainless melt in an electric arc furnace. Slag level in the electric arc furnace is continuously detected thermographically as a function of time and slag level, and an addition of foaming material is controlled depending on the temperature and temperature gradient.Type: GrantFiled: August 7, 2009Date of Patent: May 20, 2014Assignee: SMS Siemag AGInventor: Johann Reichel
-
Patent number: 8728384Abstract: 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: GrantFiled: October 6, 2010Date of Patent: May 20, 2014Assignee: Siemens Vai Metals Technologies GmbHInventors: Thomas Eder, Robert Millner, Jan-Freidemann Plaul, Norbert Rein, Andreas Scherney, Karl Zehetbauer
-
Patent number: 8287618Abstract: A process for the selective recovery of Mo, V, Ni, Co and Al from spent hydroprocessing catalysts includes the steps of treating the spent catalysts to recovery metals, support as well as chemicals. The process steps include deoiling, decoking, washing, dissolving, complexing agent treatment, acid treatment and solvent extraction. This process uses limited steps than conventional processes by the use of ultrasonic agitation for metal extraction and the presence of a chelating agent particularly Ethylene Diamine Tetra-Acetic Acid (EDTA). The process also discloses the compete recovery of the extracting agent EDTA with high purity for reuse.Type: GrantFiled: November 10, 2010Date of Patent: October 16, 2012Assignee: Kuwait Institute for Scientific ResearchInventor: Meena Marafi
-
Patent number: 8182575Abstract: A producing method of direct reduced iron includes the steps of: drying an oxidized iron raw material selected from a group including iron ore and iron-making dust generated in an iron-making process to have a predetermined moisture content; mixing the oxidized iron raw material subjected to the drying step and a reducing material having a predetermined moisture content to obtain a mixture; pulverizing the mixture obtained in the mixing step for 80% minus-sieve to have a particle diameter of 70 ?m to 500 ?m; kneading the mixture after the moisture content of the mixture subjected to the pulverizing step is adjusted; agglomerating the mixture subjected to the kneading step to be agglomerate; and reducing the agglomerate obtained in the agglomerating step by a rotary hearth furnace to generate direct reduced iron.Type: GrantFiled: October 16, 2008Date of Patent: May 22, 2012Assignee: Nippon Steel CorporationInventors: Hiroki Gofuku, Yuki Kuwauchi, Wataru Nagai, Kazuhisa Fukuda, Takashi Sawai
-
Patent number: 8057570Abstract: Efficient coordination of processing (by desulphurizing) and moving hot metal from a direct smelter, producing hot metal on a continuous basis, to an electric arc furnace or furnaces, operating on a batch basis, is disclosed. The invention includes the use of hot metal storage devices, such as ladles, that are large enough to supply hot metal for a small number, preferably two or three, of electric arc furnace batch operations.Type: GrantFiled: October 10, 2005Date of Patent: November 15, 2011Assignee: Technological Resources Pty. LimitedInventors: Christopher Martin Hayman, Stephan Heinz Josef Victor Weber
-
Patent number: 7968044Abstract: An apparatus and method for processing iron sinter is provided. A cooling system is arranged downstream of a furnace for cooling the iron sinter. The cooling system includes a convective cooling system for forcing air into the iron sinter and an evaporative cooling system for directing fluid into the hot sinter.Type: GrantFiled: April 29, 2008Date of Patent: June 28, 2011Assignee: Spraying Systems Co.Inventors: Edson Rocha, Marcos Torres
-
Patent number: 7682474Abstract: A cutter is composed of a Ni—Cr—Al alloy containing from 32 to 44 mass percent of Cr, from 2.3 to 6.0 mass percent of Al, the balance being Ni, impurities, and additional trace elements and having a Rockwell C hardness of 52 or more. This Ni—Cr—Al alloy provides a cutter produced with a superior workability and by a significantly simplified process, having a low deterioration in the hardness even when heated in use, having excellent corrosion resistance and low-temperature embrittlement resistance, and satisfactorily maintaining the cutting performance for a long time.Type: GrantFiled: August 4, 2008Date of Patent: March 23, 2010Assignee: Kabushiki Kaisha ToshibaInventors: Tomohisa Arai, Takashi Rokutanda, Tadaharu Kido
-
Patent number: 7425273Abstract: The invention relates to a method and apparatus for processing a suspension. According to the invention, a suspension is led into a washing column in which at least one filter element is present, so that near the filtering element, a packed bed of particles forms. The bed is disintegrated under the influence of the impulse of a washing liquid, while particles from the bed are incorporated in the washing liquid.Type: GrantFiled: January 30, 2003Date of Patent: September 16, 2008Assignee: Nederlandse Organisatie voor toegepast-natuurwetenschappelijk Onderzoek TNOInventors: Piet Huisjes, Johannes van der Meer, Michiel Nienoord, Dirk Verdoes
-
Patent number: 7416712Abstract: The invention relates to a method for obtaining metals from a cobalt and/or nickel arsenic sulfide ore or ore concentrate and/or a cobalt and/or nickel sulfide ore or ore concentrate, according to which the cobalt and/or nickel arsenic sulfide ore or ore concentrate and/or the cobalt and/or nickel sulfide ore or ore concentrate is reacted with sulfur or sulfur arsenic compounds to a reaction product, and dissolving and removing soluble metals and rare-earth metals.Type: GrantFiled: September 14, 2002Date of Patent: August 26, 2008Inventor: Alexander Beckmann