Platinum Group Metal (ru, Rh, Pd, Os, Ir, Or Pt) Patents (Class 423/22)
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Patent number: 8889257Abstract: An article having: a nonconductive fiber and a RuO2 coating. A method of: immersing a nonconductive article in a solution of RuO4 and a nonpolar solvent at a temperature that is below the temperature at which RuO4 decomposes to RuO2 in the nonpolar solvent in the presence of the article; and warming the article and solution to ambient temperature under ambient conditions to cause the formation of a RuO2 coating on a portion of the article. An article having: a nonconductive fiber and a coating. The coating is made by electroless deposition, sputtering, atomic-layer deposition, chemical vapor deposition, or physical vapor deposition.Type: GrantFiled: October 6, 2008Date of Patent: November 18, 2014Assignee: The United States of America, as represented by the Secretary of the NavyInventors: Debra R Rolison, Jeffrey W Long, Christopher N. Chervin, Justin C Lytle, Katherine A. Pettigrew
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Patent number: 8883097Abstract: A method of treating value bearing material comprising oxidized or surface oxidized mineral values includes the steps of crushing the value bearing material, contacting the crushed material! with a sulfide solution to sulfide the oxidized or surface oxidized mineral values, and adding ions of a selected base metal to the crushed value bearing material. The value bearing material may comprise oxidized or surface oxidized base metal or precious metal minerals. The crushed value bearing material is prepared as a slurry or pulp comprising from 15% to 40% solids and the remainder comprising water. The sulfide solution preferably comprises a soluble sulfidiser such as sodium hydrosulfide and the base-metal ion solution preferably comprises metal salt of base metals like copper or iron.Type: GrantFiled: November 13, 2007Date of Patent: November 11, 2014Assignee: University of Cape TownInventors: Deidre Jane Bradshaw, Andrew James Haigh Newell
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Publication number: 20140328736Abstract: A method for separating an amount of osmium from a mixture containing the osmium and at least one other additional metal is provided. In particular, method for forming and trapping OsO4 to separate the osmium from a mixture containing the osmium and at least one other additional metal is provided.Type: ApplicationFiled: July 21, 2014Publication date: November 6, 2014Inventors: Hendrik P. Engelbrecht, Cathy S. Cutler, Leonard Manson, Stacy Lynn Wilder
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Patent number: 8828353Abstract: 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: GrantFiled: January 8, 2013Date of Patent: September 9, 2014Assignee: Freeport Minerals CorporationInventors: Barbara J. Savage, David G. Meadows, Wayne W. Hazen
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Publication number: 20140248198Abstract: To provide a palladium separating agent capable of separating palladium ions from a solution containing palladium ions of a low concentration to a high concentration in a short time with a high selectivity, and a method for separating palladium. A palladium separating agent having a functional group represented by the formula (1) bonded to a carrier: —Z—(CH2)n-S—R??(1) wherein R is a C1-18 chain hydrocarbon group, a C3-10 alicyclic hydrocarbon group, a C6-14 aromatic hydrocarbon group, a carboxymethyl group or a carboxyethyl group, n is an integer of from 1 to 4, and Z is an amide bond.Type: ApplicationFiled: October 5, 2012Publication date: September 4, 2014Applicant: TOSOH CORPORATIONInventors: Yukinori Sudo, Takahiro Masuda, Setsuo Yoshida
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Patent number: 8790608Abstract: Non-spherical siliceous particles having a plurality of porous branches are disclosed and claimed. The porous branches are randomly oriented and elongated, ring-like, and/or aggregated. An additive introduced during synthesis of the particles modifies pore volume and morphology. The tunability of the pore volume includes an inner diameter ranging from about 2 ? to about 50,000 ?. Synthesizing the particles includes mixing under constant or intermittent stirring in a reaction vessel an aqueous silicic acid solution with an acidic heel solution to form a mixture. The stirring may optionally be performed at a variable speed. An additive is introduced into the mixture at a controlled rate, wherein the additive imposes a pH change from a lower pH to a higher pH to the mixture to induce siliceous particle precipitation.Type: GrantFiled: September 12, 2008Date of Patent: July 29, 2014Assignee: Nalco CompanyInventors: Brian T. Holland, Sascha Welz
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Patent number: 8765480Abstract: A method for recovering a metal, capable of recovering a metal easily without requiring the use of an organic medium, is provided. A first complex between a first chelating agent and a metal present in a sample is formed in a first mixture prepared by mixing the first chelating agent and the sample. Then, the first complex is recovered from the first mixture, and a second complex between the metal derived from the first complex and a second chelating agent is formed in a second mixture prepared by mixing the first complex and an aqueous solution of the second chelating agent. The aqueous solution is under the pH conditions where the first chelating agent can be insoluble in the aqueous solution. Then, a liquid fraction containing the second complex is recovered from the second mixture. Thus, the metal can be recovered.Type: GrantFiled: April 2, 2012Date of Patent: July 1, 2014Assignee: ARKRAY, Inc.Inventor: Yuka Shimomura
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Patent number: 8753599Abstract: A method and composition for the reduction of the emission of selenium into the environment from the burning of fossil fuels with the use of two chemistries, either individually or in combination with each other. The method uses polydithiocarbamic compounds, including polydithiocarbamic compounds derived from a polymer produced from acrylic-x and alkylamine in conjunction with a scrubber process to capture selenium and reduce its emission in aqueous phase blowdown. The method and composition also helps reduce corrosion in the scrubber process.Type: GrantFiled: February 6, 2012Date of Patent: June 17, 2014Assignee: Nalco CompanyInventors: Bruce A. Keiser, Jitendra T. Shah, John V. Meier, Paul J. Zinn, Jianwei Yuan, Raul Espinosa, Rebecca L. Stiles, Richard Mimna, Wayne M. Carlson
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Patent number: 8753590Abstract: A solid composition comprises: MnO2; and a compound represented by the general formula (I) wherein: R is a polymer; each Y is independently a hydrogen or a negative charge; Z is either hydrogen or is not present; each n is independently 1, 2, 3, 4, 5 or 6; wherein the MnO2 is bound to the compound of formula (I) so as to coat the surface thereof. Such a composition may be used for the separation of polyvalent metal species, such as Mo, from one or more accompanying impurities.Type: GrantFiled: November 14, 2012Date of Patent: June 17, 2014Assignee: Mallinckrodt LLCInventor: Luis Antonio Miguel Marques Barbosa
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Patent number: 8747789Abstract: A composition comprising a polymer derived from at least two monomers: acrylic-x and an alkylamine, wherein said polymer is modified to contain a functional group capable of scavenging one or more compositions containing one or more metals is disclosed. These polymers have many uses in various mediums, including wastewater systems.Type: GrantFiled: April 6, 2010Date of Patent: June 10, 2014Assignee: Nalco CompanyInventors: Paul J. Zinn, Jitendra T. Shah, William J. Andrews
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Publication number: 20140154156Abstract: The present invention enables simple production of osmium tetroxide having comparable performance to that sold in reagents from a solution containing osmium. The present invention relates to a method for producing osmium tetroxide solution, the method comprising a step for using ozone or a similar oxidizing gas to oxidize a solution containing osmium and produce osmium tetroxide gas and a step for introducing the resulting osmium tetroxide gas into a recovery solution; the present invention further relates to a production apparatus therefor.Type: ApplicationFiled: May 30, 2012Publication date: June 5, 2014Applicant: National University Corporation Hamamatsu University School of MedicineInventors: Kazushige Suzuki, Yoshinori Muranaka
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Publication number: 20140147353Abstract: Methods and compositions are described for preparing metal salts and selectively separating metals from substrates and other metals. The methods can include a thionyl reagent that reacts with a metal in a solution to produce a metal salt. The reaction can be controlled by varying reagents and conditions such that the method can be used to selectively separate one or more metals from another metal or from a substrate. The method can also be used for removing metals from a surface. Compositions produced by the method are also described.Type: ApplicationFiled: September 2, 2011Publication date: May 29, 2014Applicant: Georgia Tech Research CorporationInventors: Wei Lin, Ching P. Wong, Rongwei Zhang
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Patent number: 8715388Abstract: The present invention relates to a process for recovery of a precious metal catalyst from an organosilicon product-containing liquid reaction medium containing precious metal catalyst.Type: GrantFiled: April 29, 2011Date of Patent: May 6, 2014Assignee: Momentive Performance MaterialsInventors: He Bai, Scott Frum
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Patent number: 8702838Abstract: A method for recovering a metal, capable of recovering a metal easily without requiring the use of an organic medium, is provided. A complex between a chelating agent and a metal present in a sample is formed in a mixture prepared by mixing the chelating agent and the sample under pH conditions where the chelating agent can be insoluble in an aqueous medium. Then, the complex is recovered from the mixture, and further, the metal is recovered by dissolving the recovered complex in an aqueous medium under pH conditions that are different from the pH conditions where the chelating agent can be insoluble in an aqueous medium. By this method, a metal can be recovered easily without requiring the use of the use of an organic medium.Type: GrantFiled: April 2, 2012Date of Patent: April 22, 2014Assignee: ARKRAY, Inc.Inventors: Yuka Shimomura, Mayumi Yamada
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Patent number: 8663584Abstract: An extraction component enabling the concurrent recovery of gold and/or palladium selectively from a hydrochloric acid media containing the base metals and other contaminants. The disclosed extractant disclosed eliminates the conventional multi-step process for such extraction by providing for an extraction method which uses a single solvent extraction reagent. Further enhancing the conventional multi step process, the conventional scrubbing stage is eliminated by a single stripping stage. The resulting solutions can be obtained from leaching many types of material such as copper anode slimes, the treatment of scrap such as electronic circuit boards and plating effluents, PGM, or refractory gold ores.Type: GrantFiled: March 7, 2011Date of Patent: March 4, 2014Inventors: Loghman Moradi, Hiwa Salimi, Mohammad Piltan, Issa Yavari
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Patent number: 8636967Abstract: A metal recovery process for heavy effluent from a hydroconversion process. The effluent contains unconverted residue and a solid carbonaceous material containing group 8-10 metal, group 6 metal, and vanadium and/or nickel, and the metals are recovered according to the invention.Type: GrantFiled: January 21, 2010Date of Patent: January 28, 2014Assignee: Intevep, S.A.Inventors: Carlos Canelon, Angel Rivas, Edgar Lopez, Luis Zacarias
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Patent number: 8618019Abstract: A producing method includes a preparing step of preparing a chemical compound having at least one of elements of alkali metals and alkali earth metals along with platinum, and a reducing step of reducing the prepared chemical compound with a reducing agent to form platinum nanoparticles.Type: GrantFiled: June 25, 2009Date of Patent: December 31, 2013Assignees: Aisin Seiki Kabushiki Kaisha, Toyota Jidosha Kabushiki Kaisha, The DoshishaInventors: Takeshi Kamizono, Gang Xie, Minoru Inaba
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Patent number: 8609050Abstract: A method and composition for the reduction of the emission of selenium into the environment from the burning of fossil fuels with the use of two chemistries, either individually or in combination with each other. The method uses polydithiocarbamic compounds, including polydithiocarbamic compounds derived from a polymer produced from acrylic-x and alkylamine in conjunction with a scrubber process to capture selenium and reduce its emission in aqueous phase blowdown. The method and composition also helps reduce corrosion in the scrubber process.Type: GrantFiled: February 6, 2012Date of Patent: December 17, 2013Assignee: Nalco CompanyInventors: Bruce A. Keiser, Jitendra T. Shah, John V. Meier, Paul J. Zinn, Jianwei Yuan, Raul Espinosa, Rebecca L. Stiles, Richard Mimna, Wayne M. Carlson
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Publication number: 20130330255Abstract: According to the present invention, ruthenium or a ruthenium compound, which is expensive, can be collected with high efficiency even from an aqueous solution containing a water-soluble salt, a lower alcohol, an organic acid or the like, by adding at least one specific inorganic adsorbent to an aqueous solution containing ruthenium or the ruthenium compound, dissolving the entirety or a part of the inorganic adsorbent under an acidic condition, and then adding an alkali to adjust the solution to be an alkaline solution having a pH value of 7 or higher, thereby depositing the inorganic adsorbent while causing the inorganic adsorbent to adsorb ruthenium or the ruthenium compound.Type: ApplicationFiled: February 10, 2012Publication date: December 12, 2013Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Takashi Ouchi, Yoshio Nishimura
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Publication number: 20130315803Abstract: A liquid-liquid-liquid three-phase continuous and countercurrent extraction apparatus comprises a three-phase-mixing chamber, a three-liquid-flow settler, and a two-phase-mixing chamber; a liquid-flow control separator placed in the three-liquid-flow settler aims to flexibly regulate the directions of three liquid flows in the three-phase system by different control separator combinations to achieve either a countercurrent operation of the top-layered phase with the middle-bottom two-layered mixtures, or a countercurrent operation of the top-middle two-layered mixtures with the bottom-layered phase; and a method of using the same, relating to extraction and separation field of chemical technology.Type: ApplicationFiled: April 11, 2011Publication date: November 28, 2013Applicant: INSTITUTE OF PROCESS ENGINEERING, CHINESE ACADEMY OF SCIENCESInventors: Huizhou Liu, Kun Huang, Zhentao An
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Patent number: 8580212Abstract: The present invention relates to a process for preparing a trichloroammineplatinate salt by reacting a tetrachloroplatinate salt in aqueous solution in the presence of ammonium chloride and an alkali chloride with one or more carbonate salts selected from the group consisting of potassium, sodium and ammonium carbonate while keeping the pH value below 7 during the reaction; the product obtained therein and a use thereof.Type: GrantFiled: June 20, 2009Date of Patent: November 12, 2013Assignee: VUB Pharma A.S.Inventors: Vladimir Kysilka, Jan Mengler, Petr Kacer, Libor Cerveny, Karel Havlovic, Lucie Potucka
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Patent number: 8562922Abstract: The present application relates to novel gel-type or macroporous picolylamine resins which are based on at least one monovinylaromatic compound and at least one polyvinylaromatic compound and/or a (meth)acrylic compound and contain tertiary nitrogen atoms in structures of the general formula (I) as functional group, where R1 is an optionally substituted radical from the group consisting of picolyl, methylquinoline and methylpiperidine, R2 is —CH2—S—CH2COOR3 or —CH2—S—C1-C4-alkyl or —CH2—S—CH2CH(NH2)COOR3 or —CH2—S—CH2—CH(OH)—CH2(OH) or or derivatives thereof or —C?S(NH2), R3 is a radical from the group consisting of H, Na and K, m is an integer from 1 to 4, n and p are each, independently of one another, a number in the range from 0.1 to 1.9 and the sum of n and p is 2 and M is the polymer matrix, a process for preparing them and their uses, in particular the use in hydrometallurgy and electroplating.Type: GrantFiled: February 27, 2009Date of Patent: October 22, 2013Assignee: LANXESS Deutschland GmbHInventors: Reinhold Klipper, Michael Schelhaas, Duilio Rossoni
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Patent number: 8535625Abstract: An adsorbent contains a carbohydrate having an ether linkage. Alternatively, an adsorbent contains a carbohydrate having a cross-linkage formation produced by a dehydration reaction using a strong acid. In collection of a precious metal using the adsorbent, the adsorbent selectively adsorbs a precious metal dissolved in a solution.Type: GrantFiled: February 23, 2012Date of Patent: September 17, 2013Assignees: Denso Corporation, Saga UniversityInventors: Minoru Kurata, Kinya Atsumi, Hiroaki Fukuda, Katsutoshi Inoue, Keisuke Ohto, Hidetaka Kawakita
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Patent number: 8500846Abstract: The present invention is to provide a novel rare metal extractant containing a cyclic phenol sulfide derivative of the formula (1) and a method for extractive separation of rare metal(s) using the rare metal extractant with high efficiency.Type: GrantFiled: February 10, 2009Date of Patent: August 6, 2013Assignee: Akita UniversityInventors: Yoshihiko Kondo, Chun-bin Li, Manabu Yamada, Fumio Hamada
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Publication number: 20130177487Abstract: A process for upgrading a precious metals-containing concentrate or residue results in near-quantitave removal of base metals and several impurity elements at elevated temperatures. The precious metals-containing concentrate or residue is exposed to oxygen or an oxygen-containing environment in an oxidative pre-treatment step followed by treatment with a hydrochlorinating agent in a hydrochlorination step to form an upgraded concentrate or residue.Type: ApplicationFiled: June 17, 2011Publication date: July 11, 2013Applicant: ANGLO PLATINUM MANAGEMENT SERVICES (PROPRIETARY) LIMITEDInventors: Alain Roy, Boyd R. Davis, Leslie James Bryson, Lloyd Robert Nelson, Stephen Farring Woollam, Victor Loyiso Vusumzi Mtotywa
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Patent number: 8475749Abstract: A method recovers noble metals from noble metal-containing compositions and includes steps of (i) providing a noble metal-containing composition containing an adsorption agent that is based on an inorganic material and is functionalized by organic groups and has at least one noble metal adsorbed to it, and (ii) ashing of the noble metal-containing composition provided in step (i) in order to adjust a residual carbon content of at most 10% by weight, relative to the total weight of the noble metal-containing composition after ashing, to obtain an ashed composition.Type: GrantFiled: March 15, 2012Date of Patent: July 2, 2013Assignee: Heraeus Precious Metals GmbH & Co. KGInventors: Joachim Kralik, Martin Stettner, Stefanie Fuchs Alameda
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Publication number: 20130149219Abstract: The invention provides a process for the leaching of a laterite ore, concentrate, tailings or waste rock for the recovery of value metals, at least one value metal being nickel. The laterite ore or concentrate is subjected to a leaching step with a lixiviant comprising hydrochloric acid to leach nickel from the laterite ore, followed by a liquid/solids separation step. The liquid obtained is subject to solvent extraction with a dialkyl ketone, to obtain a solution rich in iron and a raffinate. Separation of iron from cobalt and nickel is obtained.Type: ApplicationFiled: December 12, 2012Publication date: June 13, 2013Inventors: Vaikuntam I. Lakshmanan, Ramamritham Sridhar, Jonathan Chen, M. A. Halim, Robert DeLaat
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Patent number: 8454914Abstract: An object of the present invention is to provide a process for recovering ruthenium at a sufficient recovery rate from a solid in which a ruthenium compound is supported on a carrier. The present invention relates to a process for recovering ruthenium, comprising the following steps (1) to (3): (1) bringing a solid in which a ruthenium compound is supported on a carrier, into contact with a reducing gas, to thereby reduce the ruthenium compound; (2) cooling the solid obtained in the step (1) to 250° C. or lower under an atmosphere of a non-oxidizing gas; and (3) mixing the solid obtained in the step (2) with an oxidizing solution, to thereby dissolve ruthenium in the solution.Type: GrantFiled: November 20, 2007Date of Patent: June 4, 2013Assignees: Furuya Metal Co., Ltd., Sumitomo Chemical Company, LimitedInventors: Yoshinari Hirai, Tomohiro Maruko, Kohei Seki
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Patent number: 8436044Abstract: A pharmaceutical composition or combination drug, which contains, as active ingredients, (a) a coordination compound composed of a block copolymer represented by the following formula I or formula II and cisplatin, and (b) gemcitabine hydrochloride. In the formulae I and II, R1, A, R2, R3, m and n are as defined in the description.Type: GrantFiled: January 13, 2009Date of Patent: May 7, 2013Assignee: Nanocarrier Co., Ltd.Inventors: Mitsunori Harada, Iulian Bobe, Takashi Shimizu
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Publication number: 20130108525Abstract: A method for separating an amount of osmium from a mixture containing the osmium and at least one other additional metal is provided. In particular, method for forming and trapping OsO4 to separate the osmium from a mixture containing the osmium and at least one other additional metal is provided.Type: ApplicationFiled: August 3, 2012Publication date: May 2, 2013Applicant: THE CURATORS OF THE UNIVERSITY OF MISSOURIInventors: Hendrik P. Engelbrecht, Cathy S. Cutler, Leonard Manson, Stacy Lynn Wilder
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Publication number: 20130089477Abstract: Disclosed is a method and apparatus for recovering rare metal, which separates and collects rare metals by making use of chemical actions in an efficient combination of adsorption and separation, thereby reducing work load and improving work safety. The method for recycling rare metals includes a leaching step in which a rare metal of palladium, platinum, and rhodium is mixed with hydrochloric acid into a hydrochloric acid mixture, which is then stirred at one atmospheric pressure or lower at a temperature from 50 to 90 degrees Centigrade. The vapor resulting from the stirring is condensed, and the hydrochloric acid resulting from the condensing is fed back to the original hydrochloric acid mixture to produce a hydrochloric acid leaching solution. The hydrochloric acid leaching solution produced in the leaching step is used to collect the rare metals.Type: ApplicationFiled: October 19, 2012Publication date: April 11, 2013Inventor: Haruo Uehara
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Publication number: 20130078166Abstract: A method of recovering rhenium (Re) and other metals from Re-bearing materials in the form of ammonium perrhenate having at least the step of adding Re-bearing materials into a leaching slurry. Additionally, the method has the step of adjusting the pH of the slurry to obtain Re in soluble form in a metal salt solution and insoluble residues; filtering the metal salt solution to remove the insoluble residues; selectively precipitating Re from the metal salt solution; and filtering the Re precipitate from the metal salt solution to obtain a Re filtercake. The method further has the step of drying and formulating Re to produce Re sulfide product.Type: ApplicationFiled: November 20, 2012Publication date: March 28, 2013Applicants: WRC WORLD RESOURCES COMPANY GMBH, WORLD RESOURCES COMPANYInventors: World Resources Company, WRC World Resources Company GmbH
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Patent number: 8399529Abstract: For processing of noble metal-containing, moist recycling materials with an unknown noble metal content (hereinafter called “batch”), a moisture-binding agent is added for homogenisation and the batch is mixed with comminution of optionally pre-sent agglomerates to form a free-flowing and homogenous powder. Optionally, the following takes place subsequently for analysis: A at least one representative, volume-reduced sample is taken first of all, B the sample is dried, C the sample is optionally divided further and D the sample is analyzed and the noble metal content of the batch is calculated on the basis of the data a previously known or pre-calculated quantity of the moisture-binding agent being added before sampling (step A).Type: GrantFiled: September 7, 2006Date of Patent: March 19, 2013Assignee: W.C. Heraeus GmbHInventors: Christian Mock, Horst Meyer, Matthias Grehl, Jochen Schleβmann, Martin Stettner
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Patent number: 8383070Abstract: A method of recovering rhenium (Re) and other metals from Re-bearing materials in the form of ammonium perrhenate having at least the step of adding Re-bearing materials into a leaching slurry. Additionally, the method has the step of adjusting the pH of the slurry to obtain Re in soluble form in a metal salt solution and insoluble residues; filtering the metal salt solution to remove the insoluble residues; selectively precipitating Re from the metal salt solution; filtering the Re precipitate from the metal salt solution to obtain a Re filtercake; and formulating and drying the Re filtercake to obtain a Re sulfide product. The method further has the step of combining the Re sulfide product with a Molybdenum (Mo) concentrate containing Re to obtain a Mo/Re concentrate; roasting the Mo/Re concentrate to obtain Mo oxide product and a flue gas containing Re; and treating the flue gas containing Re to obtain ammonium perrhenate.Type: GrantFiled: March 8, 2011Date of Patent: February 26, 2013Assignees: World Resources Company, WRC World Resources Company GmbHInventors: Eberhard Luederitz, Ulrich R. Schlegel, Peter T. Halpin, Dale L. Schneck
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Patent number: 8372361Abstract: 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: GrantFiled: November 22, 2011Date of Patent: February 12, 2013Assignee: Freeport-McMoran CorporationInventors: Barbara J. Savage, David G. Meadows, Wayne W. Hazen
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Patent number: 8372360Abstract: 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: GrantFiled: July 21, 2011Date of Patent: February 12, 2013Assignee: Freeport-McMoran CorporationInventors: Barbara J. Savage, David G. Meadows, Wayne W. Hazen
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Patent number: 8362199Abstract: Interlayer insulating films 5,7 (insulating films) provided in a memory capacitor cell 8 are formed between a gate electrode 3 and a counter electrode 8C formed on a silicon wafer 1. The interlayer insulating films 5,7 comprise a borazine-based resin, having a specific dielectric constant of no greater than 2.6, a Young's modulus of 5 GPa or greater and a leak current of no greater than 1×10?8 A/cm2.Type: GrantFiled: June 1, 2009Date of Patent: January 29, 2013Assignee: Hitachi Chemical Co., Ltd.Inventors: Hiroshi Matsutani, Makoto Kaji, Koichi Abe, Yuko Uchimaru
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Patent number: 8333941Abstract: Mesoporous conductive niobium and niobium-ruthenium particles and methods for forming the same are described. In some cases the particles are suitable for use as a fuel cell catalyst. The described aerosol-based synthesis method allows for single step formation and processing of the particles.Type: GrantFiled: October 19, 2009Date of Patent: December 18, 2012Assignee: STC.UNMInventors: Plamen Atanassov, Elise Switzer, Datye Abhaya, Timothy Olson, Daniel Konopka, Svitlana Pylypenko, Timothy L Ward
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Patent number: 8329903Abstract: An organometallic complex is provided by which favorable red-color light emission can be obtained. Further, an organometallic complex having a peak of light emission at about 620 nm is provided because the wavelength of light which is perceived as excellent red-color light is about 620 nm. Furthermore, an organometallic complex is provided by which red-color light emission with high luminous efficiency (cd/A) can be obtained. An organometallic complex represented by the following general formula (G2) and a light-emitting element, a light-emitting device, and an electronic device including the organometallic complex represented by the following general formula (G2) are provided.Type: GrantFiled: January 19, 2012Date of Patent: December 11, 2012Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Hideko Inoue, Satoshi Seo
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Patent number: 8323502Abstract: Multi-layered macromolecules wherein the layers are covalently bonded together and wherein the macromolecules are covalently bonded to solid particulate substrates, methods for the preparation of such compositions, and methods for their uses in a multitude of end use applications ranging from the purification of waste chemical and metal process streams to the separation and identification of proteins, peptides, and oligionucleotides.Type: GrantFiled: December 31, 2011Date of Patent: December 4, 2012Assignee: Diazem CorporationInventors: Charles E. Skinner, William Henry Campbell, Yung K. Kim
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Patent number: 8318113Abstract: A solid composition comprises: —MnO2; and—a compound represented by the general formula (I) wherein: R is a polymer; each Y is independently a hydrogen or a negative charge; Z is either hydrogen or is not present; each n is independently 1, 2, 3, 4, 5 or 6; wherein the MnO2 is bound to the compound of formula (I) so as to coat the surface thereof. Such a composition may be used for the separation of polyvalent metal species, such as Mo, from one or more accompanying impurities.Type: GrantFiled: September 10, 2008Date of Patent: November 27, 2012Assignee: Mallinckrodt LLCInventor: Luis Antonio Miguel Marques Barbosa
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Publication number: 20120228151Abstract: An extraction component enabling the concurrent recovery of gold and/or palladium selectively from a hydrochloric acid media containing the base metals and other contaminants. The disclosed extractant disclosed eliminates the conventional multi-step process for such extraction by providing for an extraction method which uses a single solvent extraction reagent. Further enhancing the conventional multi step process, the conventional scrubbing stage is eliminated by a single stripping stage. The resulting solutions can be obtained from leaching many types of material such as copper anode slimes, the treatment of scrap such as electronic circuit boards and plating effluents, PGM, or refractory gold ores.Type: ApplicationFiled: March 7, 2011Publication date: September 13, 2012Inventors: Loghman Moradi, Hiwa Salimi, Mohammad Piltan, Issa Yavari
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Patent number: 8252253Abstract: The invention relates to a process for recovering ruthenium from a used ruthenium-comprising catalyst which comprises ruthenium as ruthenium oxide on a support material which is not readily soluble in mineral acid, which comprises the steps: a) the ruthenium oxide-comprising catalyst is reduced in a gas stream comprising hydrogen chloride and, if appropriate, an inert gas at a temperature of from 300 to 500° C.; b) the reduced catalyst from step a) comprising metallic ruthenium on the sparingly soluble support material is treated with hydrochloric acid in the presence of an oxygen-comprising gas, with the metallic ruthenium present on the support being dissolved as ruthenium(III) chloride and obtained as an aqueous ruthenium(III) chloride solution; c) if appropriate, the ruthenium(III) chloride solution from step b) is worked up further.Type: GrantFiled: December 28, 2009Date of Patent: August 28, 2012Assignee: BASF SEInventors: Guido Henze, Heiko Urtel, Martin Sesing, Martin Karches
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Patent number: 8252252Abstract: Processes for the recovery of ruthenium from materials containing ruthenium or ruthenium oxides or from ruthenium-containing noble metal ore concentrates, with the steps of A. the introduction of the material into a highly alkaline alkali hydroxide melt in the presence of nitrate as oxidizing agent with the formation of an oxidized melt residue with water-soluble ruthenate (RuO4)2?, B. the dissolution of the oxidized melt residue obtained in water, C. the addition of a reducing agent, D. the precipitation of the metals formed, can also be used for separating off selenium. Optionally, ruthenium is separated off by distillation, instead of precipitation, following step B, with the steps of 5C the treatment of the ruthenate-containing solution with an oxidizing agent, 5D distilling off of the RuO4 obtained, 5E taking up of the RuO4 from step 5D in hydrochloric acid. By way of further subsequent purification steps, processes for the recovery of ruthenium targets are obtained.Type: GrantFiled: March 18, 2011Date of Patent: August 28, 2012Assignee: W.C. Heraeus GmbHInventors: Horst Meyer, Matthias Grehl, Christian Nowottny, Martin Stettner, Joachim Kralik
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Patent number: 8246975Abstract: It is intended to provide a drug delivery system which makes it possible to solve the existing technical problems and is easily usable in practice. A drug, which comprises an organic compound or an inorganic compound and has been magnetized by modifying a side chain and/or crosslinking side chains, is induced by a magnetic force into target tissues or an affected part.Type: GrantFiled: June 28, 2007Date of Patent: August 21, 2012Assignees: IHI CorporationInventors: Haruki Eguchi, Yoshihiro Ishikawa
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Patent number: 8242040Abstract: A process for the removal of corrosion metal contaminants from a carbonylation catalyst solution comprising an iridium and/or rhodium carbonylation catalyst, an alkali and/or alkaline earth metal and corrosion metal contaminants in which the catalyst solution is contacted with a cation exchange resin having its active sites partially loaded with a sufficient amount of alkali and/or alkaline earth metal to maintain the concentration of said alkali and/or alkaline earth metal in the catalyst solution and recovering a catalyst solution of reduced corrosion metal contaminant content.Type: GrantFiled: March 31, 2005Date of Patent: August 14, 2012Assignee: BP Chemicals LimitedInventors: Andrew David Poole, Stephen James Smith
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Patent number: 8240480Abstract: A method of sorting mined material for subsequent processing to recover valuable material, such as valuable metals, from the mined material is disclosed. The method includes a combination of selective breakage of mined material, for example, by using microwaves and/or high pressure grinding rolls, subsequent size separation, and then particle sorting of a coarse fraction of the separated material based on differential heating and thermal imaging.Type: GrantFiled: October 16, 2007Date of Patent: August 14, 2012Assignee: Technological Resources Pty. LimitedInventors: Raymond Walter Shaw, Barry Lavin
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Patent number: 8211389Abstract: Uses for a composition comprising a polymer derived from at least two monomers: acrylic-x and an alkylamine, wherein said polymer is modified to contain a functional group capable of scavenging one or more compositions containing one or more metals are disclosed. These polymers have many uses in various mediums, including wastewater systems.Type: GrantFiled: April 6, 2010Date of Patent: July 3, 2012Assignee: Nalco CompanyInventors: Paul J. Zinn, Jitendra T. Shah, William J. Andrews
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Publication number: 20120164039Abstract: To provide a solid-liquid palladium ion adsorbent which has both extraction performance and selectivity of a liquid-liquid palladium extracting agent in a conventional solvent extraction method and which does not require use of an organic solvent, and methods for selectively separating and recovering palladium, using it.Type: ApplicationFiled: August 20, 2010Publication date: June 28, 2012Applicant: TOSOH CORPORATIONInventor: Yukinori Sudo
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Patent number: 8206682Abstract: A method for recovering catalytic elements from a fuel cell membrane electrode assembly is provided. The method includes converting the membrane electrode assembly into a particulate material, wetting the particulate material, forming a slurry comprising the wetted particulate material and an acid leachate adapted to dissolve at least one of the catalytic elements into a soluble catalytic element salt, separating the slurry into a depleted particulate material and a supernatant containing the catalytic element salt, and washing the depleted particulate material to remove any catalytic element salt retained within pores in the depleted particulate material.Type: GrantFiled: May 15, 2009Date of Patent: June 26, 2012Inventors: Lawrence Shore, Ramail Matlin, Robert Heinz