Means For Treating Ores Or For Extracting Metals Patents (Class 266/168)
  • Patent number: 10422019
    Abstract: Disclosed is a method for extracting a desired metal contained in electronic waste having a substrate and desired metal integrally formed with copper, the method includes (a) contacting the electronic waste with a cupric amine solution to separate the desired metal integrally formed with copper from the substrate and the copper, and (b) optionally providing ultrasound energy at a frequency ranging from 15 to 45 KHz and at a temperature ranging from 45° C. to 60° C. thereby limiting metallic oxide(s) formation at a surface of a workface; and (c) etching the copper with the cupric amine solution at a temperature ranging from 45° C. to 60° C. for between 40 to 70 hours thereby releasing the desired metal from the substrate and the copper; (d) collecting the released desired metal of step (c).
    Type: Grant
    Filed: April 17, 2018
    Date of Patent: September 24, 2019
    Assignee: All Green Recycling, Inc.
    Inventor: John Christopher Willcox
  • Patent number: 10202668
    Abstract: Disclosed is a method for extracting a desired metal contained in electronic waste having a substrate and desired metal integrally formed with copper, the method includes (a) contacting the electronic waste with a cupric amine solution to separate the desired metal integrally formed with copper from the substrate and the copper, and (b) optionally providing ultrasound energy at a frequency ranging from 15 to 45 KHz and at a temperature ranging from 45° C. to 60° C. thereby limiting metallic oxide(s) formation at a surface of a workface; and (c) etching the copper with the cupric amine solution at a temperature ranging from 45° C. to 60° C. for between 40 to 70 hours thereby releasing the desired metal from the substrate and the copper; (d) collecting the released desired metal of step (c).
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: February 12, 2019
    Assignee: ALL GREEN RECYCLING, INC.
    Inventors: Justin Eugene Norkett, John Christopher Willcox
  • Publication number: 20150114182
    Abstract: The cost of precious metals, such as gold, makes recovery or recycling of these materials economically viable and desirable. Disclosed herein is a method of recovering gold from waste sources thereof, in particular waste electrical goods. Also disclosed herein is an apparatus for recovering gold from said waste sources. In particular, disclosed herein is a method and apparatus in which gold leaching chlorine gas is generated externally to a reactor vessel and subsequently pumped into the reactor vessel comprising the waste gold materials.
    Type: Application
    Filed: May 9, 2013
    Publication date: April 30, 2015
    Applicant: INTER-EURO TECHNOLOGY LIMITED
    Inventors: James Parkes, Mary Parkes
  • Patent number: 8961863
    Abstract: An aeration system for a bed of ore that is laid upon a basal layer has a gas source located upstream for supplying gas and aeration pipes that distribute the gas downstream to the bed. Each aeration pipe has spaced-apart gas emitters that distribute gas to the bed and the aeration pipes extend through the bed towards the basal layer.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: February 24, 2015
    Assignee: Netafim, Ltd.
    Inventor: Jorge Menacho
  • Publication number: 20140367899
    Abstract: A vertical drainage system for a heap leaching operation comprising vertical drainage conduits for draining fluid pockets down through the strata of a heap pile. The drainage conduits are spaced in a parallel array throughout the ore heap, and are preferably in fluid communication from a top of said ore heap to said one or more collection pipes for draining trapped and avoiding slope or geotechnical failure.
    Type: Application
    Filed: June 13, 2014
    Publication date: December 18, 2014
    Inventor: James M. Cramer
  • Patent number: 8871003
    Abstract: A process for producing a ferric containing solution by the controlled oxidation of a ferrous containing solution, said process including providing a solution containing at least ferrous ions; treating the solution with one or more inlet gases containing sulfur dioxide and oxygen in order to oxidize said ferrous ions to ferric ions, wherein the delivery rate of the sulfur dioxide gas is oxidation rate limiting; and controlling the concentration of dissolved oxygen in said solution at an optimum value.
    Type: Grant
    Filed: November 24, 2009
    Date of Patent: October 28, 2014
    Assignee: BHP Billiton Olympic Dam Corporation Pty Ltd.
    Inventor: Gary Vernon Rorke
  • Publication number: 20140239561
    Abstract: The present invention is related to a bioleaching bioreactor having an air injection and diffusion system, which allows to control the air bubble fine size, improving the oxygen and carbon dioxide distribution required by the microorganisms promoting the bioleaching process, in order to maintain the cellular concentration during the process.
    Type: Application
    Filed: October 12, 2012
    Publication date: August 28, 2014
    Inventors: Belisario Sanchez-Vazquez, Francisco Estrada-De Los Santos, Eric David Buendia-Cachu, Ulises Monter-Valenzuela
  • Publication number: 20140232047
    Abstract: The invention relates to a ceramic refractory stopper (a stopper device) for controlling a flow of molten metal at an outlet opening of a metallurgical vessel, such as a tundish.
    Type: Application
    Filed: March 22, 2013
    Publication date: August 21, 2014
    Inventors: Gerald Nitzl, Arno Stranimaier, Hans-Jürgen Haslinger, Helmut Kaufmann
  • Publication number: 20140230604
    Abstract: A process for using an aqueous oxidizing solution includes at least steps of formulating the aqueous oxidizing solution by addition of ingredients to water; a metal solubilization step of oxidizing and thereby rendering soluble a desired at least one metal from a ground amount of ore in suspension; collecting a pregnant liquor from the suspension; and selectively removing at least a portion of the at least one metal from the liquor while at a pH of less than 3, such that any remaining liquid is a recyclable liquor. The aqueous oxidizing solution has a pH of less than 0.7 primarily as a result of the presence of at least one strong acid and persulphate anions. The aqueous oxidizing solution contains anions selected from a group consisting of chloride, bromide, iodide and nitrate.
    Type: Application
    Filed: October 4, 2012
    Publication date: August 21, 2014
    Inventors: Peter Marino Pavlovich, Craig Rothwell Hughes, Brendan Allan Woodley
  • Publication number: 20140217654
    Abstract: The invention relates to a ceramic refractory stopper (a stopper device) for controlling a flow of molten metal at an outlet opening of a metallurgical vessel, such as a tundish.
    Type: Application
    Filed: June 28, 2012
    Publication date: August 7, 2014
    Applicant: REFRACTORY INTELLECTUAL PROPERTY GMBH & CO. KG
    Inventors: Gerald Nitzl, Arno Stranimaier, Hans-Jurgen Haslinger, Helmut Kaufmann
  • Publication number: 20140151944
    Abstract: Disclosed is an apparatus for producing low oxygen-content molybdenum powders by reducing MoO3. The apparatus includes a body, a cover to close an upper end of the body, a joint to couple the body with the cover, a bracket located in the body, and a micro-sieve located on an upper portion of the bracket. Metal Mo powders having the oxygen content of 3,000 ppm are obtained by using the apparatus for producing low oxygen-content molybdenum powders by reducing MoO3.
    Type: Application
    Filed: November 13, 2013
    Publication date: June 5, 2014
    Applicant: KOREA INSTITUTE OF GEOSCIENCE AND MINERAL RESOURCES
    Inventors: Hyung-Seok KIM, Jung-Min Oh, Chang-Youl Suh, Back-Kyu Lee, Jae-Won Lim
  • Patent number: 8728198
    Abstract: A method of recovering metal from heap leached ore is provided. The method includes supplying process fluid to a tank, distributing heap leached ore in the tank, optionally disrupting the flow of ore through the tank, creating a pregnant solution and discharging the process fluid, heap leached ore and pregnant solution from the tank to recover additional metal from the heap leached ore.
    Type: Grant
    Filed: January 10, 2013
    Date of Patent: May 20, 2014
    Assignee: Applied Soil Water Technologies, LLC
    Inventors: William K. Morrow, Stephen A. Morrow, Robert B. Valceschini
  • Publication number: 20140116875
    Abstract: A pyrometallurgical vessel for the production of metal by the electrolytic reduction of a metal bearing material dissolved in a molten salt bath, the cell including a shell 11 and a lining 12,13 on the interior of the shell, the lining including a bottom cathode lining 13 and a side wall lining 12, at least one of the bottom cathode lining 13 and a side wall lining 12 including a plurality of fluid ducts 16, 22, 31, 41 positioned within the lining for conducting a fluid therethrough, the flow of fluid through the ducts within the linings having 3-dimensional directional flow provided by 3-dimensional shapes inserted into the ducts or the ducts comprising a number of straight sections joined by curved sections arranged in a 3-dimensional shape, the 3-dimensional shapes of the ducts or the 3-dimensional shapes inserted into the ducts.
    Type: Application
    Filed: April 5, 2012
    Publication date: May 1, 2014
    Inventors: Ingo Bayer, Bruce Ringsby Olmstead
  • Publication number: 20140091503
    Abstract: An apparatus for recovering valuable metals and manufacturing multifunctional aggregate from slag. The apparatus includes a slag reforming processing pot 10 in which molten slag discharged from a converter or an electric furnace is stored, a reducing agent introducing part 20 which introduces a reducing agent into the slag reforming processing pot from above, the reducing agent recovering valuable metals from the molten slag, a reducing agent inflow part 25 which inputs a reducing agent into the slag reforming processing pot through a lower portion of a side of the slag reforming processing pot, the reducing agent recovering valuable metals from the molten slag, and cooling units 30 and 40 which create bubbles and perform controlled cooling in order to convert the molten slag, from which the valuable metals are recovered, into a light material having a porous structure.
    Type: Application
    Filed: December 4, 2013
    Publication date: April 3, 2014
    Applicant: HYUNDAI STEEL COMPANY
    Inventor: Joon-Seong Ki
  • Patent number: 8673208
    Abstract: A process and apparatus for refining iron from high-phosphorus content iron ores. The process involves mixing a high-phosphorus iron oxide ore and an alkaline solution of pH between about 12.5 and 13.5, screening the mixture by gravity to separate an alkaline-high-phosphorus solution from a low-phosphorus iron ore; and treating the low-phosphorus iron ore with lime and a natural gas.
    Type: Grant
    Filed: September 7, 2012
    Date of Patent: March 18, 2014
    Assignee: C.V.G. Ferrominera Orinoco C.A.
    Inventor: Henry Rafael Bueno Colina
  • Publication number: 20140047950
    Abstract: The present invention relates to a continuous reactor a method for manufacturing nanoparticles. The reactor of the present invention includes: a plurality of first inputs for individually inputting a plurality of reagents; a first mixing part connected to the first inputs to mix the reagents; N number of first reaction units, each comprising a plurality of first diverging channels and a first converging channel to form a channel having the first diverging channels and the first converging channels alternately connected to one another in series for N times of diverging-converging actions, wherein N?1, and the first diverging channels of a 1st one of the first reaction units are connected to the first mixing part; and a first output connected to the first converging channel of an Nth one of the first reaction units, so as to output a product of nanoparticles.
    Type: Application
    Filed: November 21, 2012
    Publication date: February 20, 2014
    Applicant: National Tsing Hua University
    Inventors: Kan-Sen CHOU, Yu-Chun CHANG, Yi-Chu CHEN, Yu-Chieh LU
  • Publication number: 20140035208
    Abstract: Embodiments of an aluminum dross cooling head are disclosed. The cooling cooperates with a material container encapsulate dross and reduce thermiting of the dross. In one embodiment, the cooling head also serves as a compression head when forced into the dross by a cooperating dross press assembly.
    Type: Application
    Filed: October 4, 2013
    Publication date: February 6, 2014
    Applicant: ALTEK, L.L.C.
    Inventors: James Herbert, Jorge Fernandez, Andy Gibbs
  • Publication number: 20140035207
    Abstract: A method and system are provided in which a gold and/or silver-collecting resin-in-leach circuit comprises both co-current and counter-current sections.
    Type: Application
    Filed: August 5, 2013
    Publication date: February 6, 2014
    Applicant: BARRICK GOLD CORPORATION
    Inventors: Yeonuk CHOI, Samir CHEFAI
  • Publication number: 20140026715
    Abstract: The invention relates to the provision of noble metal-containing mixtures for a process for processing them by heating the mixture, preferably for processing them by means of an ashing process. This provision is characterized by the following measures: (a) moistening of the noble metal-containing mixture to be processed, (b) introduction of the moistened noble metal-containing mixture into at least one container which serves as diffusion barrier for water, and (c) introduction of the loaded container into a heat-resistant chamber together with at least one upper refractory mat. The noble metal-containing mixture is preferably moistened in the presence of a porous material and the chamber is closed by means of a heat-resistant covering. The invention further provides a processing process comprising the provision of noble metal-containing mixtures and also the heat-resistant chamber loaded with noble metal-containing mixtures itself.
    Type: Application
    Filed: April 12, 2012
    Publication date: January 30, 2014
    Applicant: UMICORE AG & CO. KG
    Inventors: Klaus Zimmermann, Robert Hartmann, Oswald Kinz, Matthias Grehl
  • Patent number: 8617444
    Abstract: Equipment and methods for preparing curved fibers in a batch or continuous process. Fiber strands comprising a thermoplastic material are placed on a cylindrical surface and heated such that they soften and become malleable. The fiber strands assume the curvature of the cylindrical surface and, upon cooling below their softening temperature, retain the curvature. The curved-fiber strands are then cut to a desired length.
    Type: Grant
    Filed: September 27, 2010
    Date of Patent: December 31, 2013
    Assignee: Schlumberger Technology Corporation
    Inventor: Gérard Daccord
  • Publication number: 20130312570
    Abstract: A process for purifying Mo-99 from an acidic solution obtained by dissolving an irradiated solid target comprising uranium in an acidic medium, or from an acidic solution comprising uranium and which has previously been irradiated in a nuclear reactor, or from an acidic solution comprising uranium and which has been used as reactor fuel in a homogeneous reactor, the process comprising contacting the acidic solution with an adsorbent comprising a zirconium oxide, zirconium hydroxide, zirconium alkoxide, zirconium halide and/or zirconium oxide halide, and eluting the Mo-99 from the adsorbent using a solution of a strong base, the eluate then being subjected to a subsequent purification process involving an alkaline-based Mo-99 chromato-graphic recovery step on an anion exchange material. Also provided is apparatus for carrying out the process.
    Type: Application
    Filed: August 2, 2011
    Publication date: November 28, 2013
    Inventor: Luis A.M.M. Barbosa
  • Publication number: 20130247719
    Abstract: A heap of a material to be leached to recover a valuable metal from the material and a method of constructing the heap are disclosed. The heap comprises sides and a top and a system to control air flow into the heap. The air flow control system comprises a combination of an air impermeable barrier and an aeration system.
    Type: Application
    Filed: September 5, 2011
    Publication date: September 26, 2013
    Applicant: TECHNOLOGICAL RESOURCES PTY. LIMITED
    Inventors: Lucy Esdaile, Paul Leslie Brown
  • Publication number: 20130220079
    Abstract: A process and system for recovery of gold from an ore having the steps of i) providing the ore containing the gold to be recovered, ii) leaching the ore in an oxidative chloride medium, including a nitrogen species to produce a solution comprising gold; and iii) recovering the gold from the solution. The gold in a preferred embodiment is recovered from refractory and carbonaceous ores.
    Type: Application
    Filed: February 4, 2011
    Publication date: August 29, 2013
    Applicant: NEOMET TECHNOLOGIES INC.
    Inventors: Bryn Harris, Carl White
  • Publication number: 20130152741
    Abstract: The present disclosure relates to a metal recovery process comprising a solvent extraction process. In an exemplary embodiment, the solution extraction system comprises a plant with a first and second circuit. A high-grade pregnant leach solution (“HGPLS”) is provided to the first and second circuit, and a low-grade pregnant leach solution (“LGPLS”) is provided to the second circuit. The first circuit produces a rich electrolyte, which can be forwarded to a primary metal recovery, and a low-grade raffinate, which can be forwarded to a secondary metal recovery process. The second circuit produces a rich electrolyte, which can also be forwarded to the primary metal recovery process. The first and second circuits are in fluid communication with each other.
    Type: Application
    Filed: December 20, 2011
    Publication date: June 20, 2013
    Applicant: FREEPORT-MCMORAN CORPORATION
    Inventors: Jason M. Morgan, Barbara J. Savage, David G. Meadows, Wayne W. Hazen
  • Publication number: 20130104700
    Abstract: A method and system for recovering metal ions from liquid or slurry solutions through an elution column and an enhancing column, each containing a resin. Eluate is recovered as discrete fractions such that the metal ions are substantially separated from one another.
    Type: Application
    Filed: October 29, 2012
    Publication date: May 2, 2013
    Applicant: DOW GLOBAL TECHNOLOGIES LLC
    Inventor: Dow Global Technologies LLC
  • Patent number: 8419825
    Abstract: A process for energy- and emission-optimized iron production and an installation for carrying out the process. A first partial amount of a generator gas produced in a melter gasifier is used as a first reducing gas in a first reduction zone. A second partial amount is fed to at least one further reduction zone as a second reducing gas. In addition, after CO2 scrubbing, a partial amount of top gas removed from the first reduction zone is admixed with the generator gas after the latter leaves the melter gasifier, for cooling the generator gas.
    Type: Grant
    Filed: June 24, 2009
    Date of Patent: April 16, 2013
    Assignee: Siemens Vai Metals Technologies GmbH
    Inventors: Thomas Bürgler, Stephan Lackner, Robert Millner, Reinhard Redl, Bernhard Rummer, Herbert Schmid, Johann Wurm, Andreas Zobernig
  • Publication number: 20130055855
    Abstract: A method is described for obtaining purified 68Ga. The method comprises eluting 68Ga from a sorbent in and/or on which are sorbed 68Ga and 68Ge, so as to generate a crude 68Ga solution. The sorbent should have a higher affinity for 68Ge than for 68Ga. The crude 68Ga solution is then applied to a medium cation exchange resin, and the resin is eluted with an aqueous alcohol so as to retain the 68Ga on the resin and remove unwanted species from the resin. The resin is then eluted with an eluent, which may be an acidic solution, an alkaline solution or a solution of a species capable of complexing 68Ga ions, so as to obtain an eluate comprising purified 68Ga ions.
    Type: Application
    Filed: March 3, 2011
    Publication date: March 7, 2013
    Applicant: Australian Nuclear Science and Technology Organisation
    Inventor: Van So Le
  • Publication number: 20130047783
    Abstract: A system and method are provided for the extraction of gold and other precious metals and elements from ore, as well as purification of water. Heavy elements are separated from lighter elements during the rotation of any conductive liquid in a chamber. To provide proper conductivity seawater can be used as the main conductive liquid. An electric field and hence a current is generated in a radial direction in a magnetic field generated in an axial direction, perpendicular to the radial direction, with respect to a chamber. The conductive liquid is provided to the chamber and is subjected to the current, and the conductive liquid is caused to rotate in the chamber by the current interacting with the magnetic field. Due to the Lorentz force, proper rotation is achieved without any mechanical motion. Rotation of the liquid in the chamber causes separation of heavy elements from light element caused by centrifugal forces.
    Type: Application
    Filed: October 30, 2012
    Publication date: February 28, 2013
    Inventor: Alfred Y. Wong
  • Publication number: 20130047788
    Abstract: The method and the device serve to treat the flue dust formed during the production of nonferrous metals. After the addition of sulfur and/or a sulfur compound, the flue dust is heated, and volatile compounds are separated in a downstream offgas treatment unit. The flue dust is heated in an inert atmosphere.
    Type: Application
    Filed: February 18, 2011
    Publication date: February 28, 2013
    Applicant: AURUBIS AG
    Inventors: Andreas Specht, Harald Kadereit, Jürgen Schmidl, Michael Hoppe
  • Publication number: 20130019716
    Abstract: A process and an apparatus for reducing charge materials containing iron ore or for producing pig iron or liquid primary steel products in a smelting unit are provided, the charge materials being at least partially reduced in at least one reduction unit by means of a reducing gas and optionally at least some of the at least partially reduced charge materials being melted in a smelting unit while supplying coal or coke and gas containing oxygen, while simultaneously forming the reducing gas, and the reducing gas or a reducing gas generated externally being supplied to the reduction unit. In the event of an interruption in the production of pig iron or primary steel products, the at least one reduction unit is emptied and the at least partially reduced charge materials are introduced into at least one vessel and kept under a non-oxidizing shielding gas atmosphere.
    Type: Application
    Filed: December 1, 2010
    Publication date: January 24, 2013
    Inventors: Thomas Eder, Robert Millner, Jan-Friedemann Plaul, Norbert Rein, Karl Zehetbauer
  • Publication number: 20120325052
    Abstract: The present relates to a method and a device for producing a radionuclide in which an absorption column containing the radionuclide is eluted by means of an eluent in a first flow direction and subsequently in a second, opposite flow direction.
    Type: Application
    Filed: October 12, 2010
    Publication date: December 27, 2012
    Inventors: Frank Rösch, Dimitry Filosofov
  • Publication number: 20120312126
    Abstract: Provided is a valuable-metal recovery method for recovering metals from lithium ion batteries using comparatively simple equipment and without using a cumbersome process. In said method, a positive electrode material from lithium ion batteries, containing lithium and a transition metal, is dissolved in an acidic solution, thereby generating lithium ions and ions of the transition metal in the acidic solution. Said acidic solution and a recovery liquid are then made to flow with an anion-permeable membrane interposed therebetween, causing the lithium ions to permeate from the acidic solution to recovery solution. Lithium ions are then recovered from the recovery liquid containing dissolved lithium ions.
    Type: Application
    Filed: November 19, 2010
    Publication date: December 13, 2012
    Applicant: BioCryst Pharmaceuticals Inc.
    Inventors: Yoshihide Yamaguchi, Takehiko Hasebe, Yasuko Yamada
  • Publication number: 20120304822
    Abstract: This invention relates to a method and apparatus for gasifying or liquifying coal. In particular, the method comprises reacting a coal with a molten aluminum or aluminum alloy bath. The apparatus includes a reaction vessel for carrying out the reaction, as well as other equipment necessary for capturing and removing the reaction products. Further, the process can be used to cogenerate electricity using the excess heat generated by the process.
    Type: Application
    Filed: June 4, 2012
    Publication date: December 6, 2012
    Inventors: Ronald G. Presswood, JR., Ian C. Bishop
  • Publication number: 20120260772
    Abstract: Methods and systems for processing an iron ore tailings byproduct are described. In one embodiment, a method for processing an iron ore tailings byproduct includes sizing particles within a slurry of the iron ore tailings byproduct to separate particles from the slurry having a dimension less than a predetermined size. After sizing, the method may further include centrifugating the particles less than the predetermined size into centrifugated concentrate and tails portions. The centrifugated concentrate portion may be separated into separated concentrate and tails portions. Finally, in certain embodiments, the separated concentrate portion may be de-watered to a remaining composition of matter comprising iron in greater proportion than in the iron ore tailings byproduct. Generally, using the systems and methods described herein, iron that would have otherwise been un-recovered is extracted from the iron ore tailings byproduct.
    Type: Application
    Filed: April 12, 2012
    Publication date: October 18, 2012
    Inventor: Thomas A. Valerio
  • Patent number: 8268232
    Abstract: Provided is an apparatus for dissolving noble metals. A pH adjusting unit controls pH of liquid inside a dissolution reactor in such a manner that a chlorine compound is produced. The noble metal in a noble metal-containing sample introduced into the dissolution reactor is dissolved by the chlorine compound, and the liquid evaporated from an inorganic material extraction unit is recycled to the dissolution reactor.
    Type: Grant
    Filed: June 23, 2009
    Date of Patent: September 18, 2012
    Assignee: Korea Institute of Geoscience and Mineral Resources (KIGAM)
    Inventors: Min Seuk Kim, Jong Gwan Ahn
  • Patent number: 8262984
    Abstract: Disclosed is a mixing, milling, and aeration apparatus for the digestion of metal ore with bacteria. It includes a tank and a center post therein. At least one mixing blade extends radially from the center post. At least one roller is supported by a mixing blade, where each roller is configured to roll about the center of the tank while applying a crushing force to solids within the tank. At least one gas distributor, supported by a mixing blade, defines a plurality of holes through which gas is distributed to encourage mixing of the contents of the tank, to encourage distribution of oxygen through the contents, and to discourage fouling of the bottom of the tank and the rollers.
    Type: Grant
    Filed: February 28, 2010
    Date of Patent: September 11, 2012
    Assignee: Western American Mining Company
    Inventor: Bart Levine
  • Publication number: 20120193843
    Abstract: A supporting frame and thin stave cooler for a metallurgical furnace comprises a metal structure fastened to the cold face of the thin stave cooler that adds strength and rigidity. The thin stave cooler itself is lightened, thinned, and simplified to take optimal advantage of the supporting frame and its provisions for mounting and attaching the thin stave cooler assembly to the inside walls of a furnace containment shell. Water is circulated in the thin stave cooler through feed and discharge piping connections that pass through the supporting frame and are sleeved by protection sleeves. The protection sleeves can serve as a primary or secondary support system when they are welded between the furnace containment shell and the supporting frame when first installed.
    Type: Application
    Filed: January 27, 2011
    Publication date: August 2, 2012
    Inventor: Allan J. MacRae
  • Publication number: 20120167714
    Abstract: Systems and methods for processing sludge from a fume scrubbing system that scrubs fumes from a steelmaking converter in a manner that separates/isolates a significant portion of the metallic iron particles in the sludge and prepares these particles for convenient handling. In an exemplary system, the system includes separating equipment that isolates metallic iron particles in the sludge and forming equipment that forms the isolated particles into briquettes that have relatively high mechanical resistance that allow the briquettes to maintain their integrity during handling and storage. The high-metallic-iron-content briquettes can be recycled in the steelmaking process, for example, as charging material for a basic oxygen converter or an electric arc furnace. Water used in the system can be recycled and reused within the system, thereby making the system environmentally friendly.
    Type: Application
    Filed: January 4, 2011
    Publication date: July 5, 2012
    Inventors: Guilherme Santana Lopes Gomes, Victor Loureiro Dos Santos
  • Publication number: 20120148461
    Abstract: An improved process for the separation of different metal values from raw materials, and an apparatus for carrying out such processes are disclosed.
    Type: Application
    Filed: August 24, 2010
    Publication date: June 14, 2012
    Applicant: Metal Tech Ltd.
    Inventors: Aik Rosenberg, Boris Tarakanov, Sergey Gusakov, Igal Antonir, Alexander Rogov, Rami Noach, Ivgeny Jichor
  • Patent number: 8186607
    Abstract: An improved method and system is described for applying a leach solution to ore in the process of heap leaching. The Hybrid Irrigation System (HIS) relies on both surface solution delivery techniques as well as sub-surface solution application to improve the solution uniformity and metallurgical performance of a leaching process. The methods and systems allow for controlled application of leach solution with a hydraulic head applied that can be adjusted or varied depending on the conditions of the ore from negative, atmospheric or positive pressure, while distributing leaching solution in a uniform manner independent of surface variability with respect to elevation and infiltration capacity of the ore surface.
    Type: Grant
    Filed: October 31, 2008
    Date of Patent: May 29, 2012
    Assignee: G&S Partners
    Inventors: Amado Guzman, Randolph E. Scheffel
  • Publication number: 20120125153
    Abstract: The invention generally relates to the extraction of rare earth elements and heavy metals from geothermal fluids used in geothermal electrical production. The invention provides systems and methods for extracting these elements from hydrothermal products by the application of one or more forces that affect different components of a condensate differently.
    Type: Application
    Filed: January 27, 2012
    Publication date: May 24, 2012
    Applicant: SHALE AND SANDS OIL RECOVERY LLC
    Inventor: Thomas B. O'Brien
  • Publication number: 20120090431
    Abstract: To use 99mTc as a raw material for a radioactive medicine, a very small amount of 99mTc in the high concentration Mo(99Mo) solution is purified and recovered with high yield without contamination of 99Mo. 99mTc with high purity is recovered by forming a high concentration Mo(99Mo) solution which contains radionuclides 99Mo which is the parent nuclide of 99mTc used for the radioactive medicine and the raw material for its labeled compound, forming a high concentration Mo(99Mo) solution which contains radionuclides 99Mo and 99mTc by generating 99mTc to a radioactive-equilibrium state, getting 99mTc in the high concentration Mo(99Mo) solution adsorbed to activated carbon selectively by feeding the solution to an adsorption column which has activated carbon, and undergoing desorption and purification treatment of 99mTc with a desorbent from the activated carbon to which 99mTc is adsorbed.
    Type: Application
    Filed: July 3, 2009
    Publication date: April 19, 2012
    Applicant: KAKEN CO., LTD.
    Inventors: Katsuyoshi Tatenuma, Tomomi Ueda, Kiyoko Kurosawa, Koji Ishikawa, Atsushi Tanaka, Tsuneyuki Noguchi, Yasushi Arano
  • Patent number: 8147797
    Abstract: A system for cooling and recuperative heating of a slurry in a metallurgical process which includes heat exchangers, pumps and autoclaves is described herein. The heat exchangers use a non-scaling common liquid heat transfer medium. Preferably, the heat exchangers are tube-in-tube heat exchangers with 3 to 7 slurry tubes in each heat exchanger. An advantage of this system is that it does not use flash tanks. To minimize abrasive wear on impinged surfaces, the velocity of the slurry is not more than 5 meters per second. The slurry comprises a solids concentration of 25% to 50%. Preferably, the pumps in the system are float-type pumps in which the driven liquid from the discharge pumps is also used as the drive liquid for the feed pumps.
    Type: Grant
    Filed: September 13, 2004
    Date of Patent: April 3, 2012
    Inventor: Donald J. Donaldson
  • Patent number: 8142710
    Abstract: The invention discloses a reduction apparatus having a main body made of silicon carbide-based material and collectively formed by a top portion, a bottom portion, and a side portion, wherein the bottom portion includes a slanted plane, and the main body has an inlet and a metallic vapor exit provided near the top portion and an outlet provided near the lowest end of the slanted bottom portion; an inlet closure connected with the inlet; an outlet closure connected with the outlet; and a metal collector or a condenser connected with the metallic vapor exit. The invention solved problems found in conventional reduction retorts, including: small capacity, low metal output, inconvenience in charging reactant material and discharging spent residue, and heavy workload for workers. The invention also shortened the time for reduction reaction, increased production efficiency and output of the reduction furnace, and reduced production cost.
    Type: Grant
    Filed: February 11, 2009
    Date of Patent: March 27, 2012
    Assignee: MG Century Mining Corporation
    Inventors: Jiqiang Zhang, Kui Ming Wong
  • Patent number: 8119059
    Abstract: An apparatus for manufacturing molten iron includes i) at least one fluidized-bed reduction reactor that converts iron ore into reduced materials by reducing and plasticizing the iron ore, ii) a melter-gasifier into which the reduced materials are charged and oxygen is injected such that the melter-gasifier manufactures molten iron, and iii) a reducing gas supply line that supplies a reducing gas discharged from the melter-gasifier into the fluidized-bed reduction reactor. The fluidized-bed reduction reactor includes a gas injector that injects a gas into the fluidized-bed reduction reactor to remove stagnating layers.
    Type: Grant
    Filed: December 26, 2006
    Date of Patent: February 21, 2012
    Assignees: POSCO, Siemens VAI Metals Technologies GmbH & Co.
    Inventors: Min-Young Cho, Hang-Goo Kim, Myoung-Kyun Shin, Nag-Joon Choi, Kung-Won Nam, Sun-Kwang Jeong, Jun-Hyuk Lee
  • Publication number: 20120011967
    Abstract: There is provided a metals recovery system including at least one tank having a top portion and a bottom portion, wherein the top portion has an inlet and said bottom portion has an outlet, a process fluid delivery device in fluid communication with the tank for delivering a supply of process fluid to the tank, an ore delivery device for delivering a supply of ore into the tank through the inlet in the top portion of the tank, an agitator located within the tank for disrupting a downward flow path of the ore through the tank and an ejection device in communication with the bottom of the tank for transporting process fluid and ore from the tank to a location apart from the tank. Also provided is a method of recovering metal from ore by supplying a constant head pressure of process fluid to at least one tank, distributing ore into the tank, disrupting the flow of ore through the tank and discharging the ore and process fluid from the tank an into a processing apparatus.
    Type: Application
    Filed: August 15, 2008
    Publication date: January 19, 2012
    Applicant: APPLIED SOIL WATER TECHNOLOGIES LLC
    Inventors: William K. Morrow, Stephen A. Morrow, Robert B. Valceschini
  • Publication number: 20110296951
    Abstract: A process for producing a ferric containing solution by the controlled oxidation of a ferrous containing solution, said process including providing a solution containing at least ferrous ions; treating the solution with one or more inlet gases containing sulfur dioxide and oxygen in order to oxidize said ferrous ions to ferric ions, wherein the delivery rate of the sulfur dioxide gas is oxidation rate limiting; and controlling the concentration of dissolved oxygen in said solution at an optimum value.
    Type: Application
    Filed: November 24, 2009
    Publication date: December 8, 2011
    Inventor: Gary Vernon Rorke
  • Publication number: 20110296949
    Abstract: A process and apparatus for refining iron from high-phosphorus content iron ores. The process involves mixing a high-phosphorus iron oxide ore and an alkaline solution of pH between about 12.5 and 13.5, screening the mixture by gravity to separate an alkaline-high-phosphorus solution from a low-phosphorus iron ore; and treating the low-phosphorus iron ore with lime and a natural gas.
    Type: Application
    Filed: June 8, 2010
    Publication date: December 8, 2011
    Applicant: C.V.G. FERROMINERA ORINOCO C.A.
    Inventor: Henry Rafael Bueno Colina
  • Publication number: 20110277593
    Abstract: The present invention relates generally to a process for controlled leaching and sequential recovery of two or more metals from metal-bearing materials. In one exemplary embodiment, recovery of metals from a leached metal-bearing material is controlled and improved by providing a high grade pregnant leach solution (“HGPLS”) and a low grade pregnant leach solution (“LGPLS”) to a single solution extraction plant comprising at least two solution extractor units, at least two stripping units, and, optionally, at least one wash stage.
    Type: Application
    Filed: July 21, 2011
    Publication date: November 17, 2011
    Applicant: FREEPORT-MCMORAN CORPORATION
    Inventors: Barbara J. Savage, David G. Meadows, Wayne W. Hazen
  • Patent number: 8052921
    Abstract: An apparatus for manufacturing molten iron includes i) at least one fluidized-bed reduction reactor that reduces and plasticizes iron ore and converts the iron ore into reduced materials, ii) a melter-gasifier into which the reduced ore is charged and oxygen is injected, the melter-gasifier manufacturing molten iron, and iii) a reducing gas supply line that supplies a reducing gas discharged from the melter-gasifier to the fluidized-bed reduction reactor. The fluidized-bed reduction reactor includes a cyclone that is installed in the fluidized-bed reduction reactor to collect fine iron ore. A gas injector, which prevents the fine ore from adhering by injecting gas containing carbon, is connected to the cyclone.
    Type: Grant
    Filed: December 26, 2006
    Date of Patent: November 8, 2011
    Assignees: POSCO, Siemens VAI Metals Technologies GmbH & Co.
    Inventors: Myoung-Kyun Shin, Sang-Hyun Kim, Jun-Hyuk Lee, Kung-Won Nam