Platinum Group Metal (ru, Rh, Pd, Os, Ir, Or Pt) Patents (Class 423/22)
  • Patent number: 11047052
    Abstract: The present invention provides a resin plating method using an etching bath containing manganese as an active ingredient, the method being capable of maintaining stable etching performance even during continuous use. The resin plating method includes: an etching step, which uses a resin material-containing article as an object to be treated and etches the article using an acidic etching bath containing manganese; a catalyst application step, which uses palladium as a catalyst metal; and an electroless plating step; and the method further includes a step of maintaining the palladium concentration in the acidic etching bath at 100 mg/L or less.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: June 29, 2021
    Assignee: OKUNO CHEMICAL INDUSTRIES CO., LTD.
    Inventors: Shingo Nagamine, Koji Kita, Kuniaki Otsuka
  • Patent number: 10899851
    Abstract: A method for producing a hydrogenated conjugated diene polymer latex includes: a hydrogenation step of dissolving or dispersing a hydrogenation catalyst containing a platinum group element in a latex of a conjugated diene polymer to hydrogenate a carbon-carbon unsaturated bond in the conjugated diene polymer; and an insoluble complex formation step of complexing the platinum group element in the latex with a complexing agent to form an insoluble complex, wherein pH of the latex at the insoluble complex formation step is controlled in a range of 5.0 to 8.0.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: January 26, 2021
    Assignee: ZEON CORPORATION
    Inventor: Fuminari Oyama
  • Patent number: 10737949
    Abstract: A method of separating Osmium from Iridium, including receiving a powdered mixture of Osmium and Iridium, oxidizing the Osmium of the powdered mixture, capturing the oxidized Osmium in a trapping solution, reducing the oxidized Osmium from the solution to release the Osmium.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: August 11, 2020
    Assignee: CHECK-CAP LTD
    Inventors: Salah Hasoon, Yoav Kimchy
  • Patent number: 10619066
    Abstract: A metallic nanoparticle dispersion includes metallic nanoparticles and less than 50 ?mol/g metal of an inorganic acid or a compound capable of generating such an acid during curing of a metallic layer or pattern formed from the dispersion. The presence of such small amounts an inorganic acid increases the conductivity of metallic layers or patterns formed from the metallic nanoparticle dispersions at moderate curing conditions.
    Type: Grant
    Filed: July 1, 2014
    Date of Patent: April 14, 2020
    Assignee: AFGA-GEVAERT
    Inventors: Dirk Bollen, Nicolas Vriamont, Johan Loccufier
  • Patent number: 10378082
    Abstract: Process for removing precious metal from precious metal-containing catalyst form bodies comprising form bodies and precious metal, whereby the precious metal to be removed is at least one precious metal selected from the group consisting of Au, Ag, Pd, Pt, Ir, Rh, Ru, Os, and Re, comprising the steps of: (a) producing a mixture of precious metal-containing catalyst form bodies in at least one mineral acid that is at least 1N; (b) supplying inert or oxidizing gas into the mixture containing noble metal-containing catalyst form bodies and mineral acid; (c) introducing at least one oxidation agent, in solid or liquid form, into the mixture containing noble metal-containing catalyst form body and mineral acid; and (d) separating the form bodies from the liquid.
    Type: Grant
    Filed: October 12, 2015
    Date of Patent: August 13, 2019
    Assignee: HERAEUS DEUTSCHLAND GMBH & CO. KG
    Inventors: Christoph Roehlich, Vasco Thiel, Stefanie Fuchs-Alameda, Jan Schapp, Steffen Voss
  • Patent number: 10196339
    Abstract: This invention relates to a catalyst used in a carbonylation of methanol using carbon monoxide to acetic acid, and more particularly to a heterogeneous catalyst represented by Rh/WxC (where x is an integer of 1 or 2) in which a complex of a rhodium compound and 3-benzoylpyridine is fixed on a support of tungsten carbide.
    Type: Grant
    Filed: August 24, 2015
    Date of Patent: February 5, 2019
    Assignee: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
    Inventors: Jae Hyun Park, Jong Wook Bae, Tae Sun Chang, Beom Sik Kim
  • Patent number: 10087503
    Abstract: 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: Grant
    Filed: November 15, 2016
    Date of Patent: October 2, 2018
    Assignee: The Curators of the University of Missouri
    Inventors: Hendrik P. Engelbrecht, Cathy S. Cutler, Leonard Manson, Stacy Lynn Wilder
  • Patent number: 10066275
    Abstract: An industrial scale smelting system for using arc furnaces for processing large quantities of ore in a production manner for recovery of a plurality of elements in useful quantities using a plurality of electrowinning processes with the options of providing efficient energy recovery and raw material recovery and recirculation capabilities.
    Type: Grant
    Filed: May 11, 2015
    Date of Patent: September 4, 2018
    Inventor: Stephen L. Cunningham
  • Patent number: 10046976
    Abstract: A method of making the inorganic gold compound, such as tetrachloroauric acid, sodium tetrachloroaurate, potassium tetrachloroaurate, sodium tetracyanoaurate, and potassium tetracyanoaurate, includes the step of: treating gold with a halogen-containing oxidizing agent in a hydrochloric acid to obtain the inorganic gold compound, wherein the halogen-containing oxidizing agent excludes chlorine gas. The method of making the inorganic gold compound is simple, safe, time-effective, cost-effective, and environment-friendly, and has the advantage of high yield.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: August 14, 2018
    Assignee: TRIPOD TECHNOLOGY CORPORATION
    Inventors: Lin Lu, Chen-Hsiang Wang, Kuei-Sheng Fan, Cheng-Ding Wang, Jim-Min Fang
  • Patent number: 10034941
    Abstract: The present invention provides a drug delivery system that overcomes conventional technical problems and that is readily put to practical use. Iron-salen complexes represented by General Formula (I) below. The invention renders iron-salen complexes magnetic, which can thus be used as drugs that can be delivered to affected areas in the body using the inherent magnetic properties of the drug without employing carriers composed of magnetic substances as has been done hitherto.
    Type: Grant
    Filed: January 8, 2016
    Date of Patent: July 31, 2018
    Assignees: IHI CORPORATION
    Inventors: Haruki Eguchi, Yoshihiro Ishikawa
  • Patent number: 9994458
    Abstract: The present invention relates to a process for the preparation of ruthenium(III) chloride (RuCl3) as well to a process for the purification of ruthenium(III) chloride (RuCl3) and a use of the process for the preparation or the purification of ruthenium(III) chloride (RuCl3).
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: June 12, 2018
    Assignees: Heraeus Deutschland GmbH & Co. KG, Heraeus South Africa (Pty.) Ltd.
    Inventors: Christian Mock, David Fife, Waldo Van Tonder, Albert Joubert, Walter Lässig
  • Patent number: 9985223
    Abstract: Provided is a novel substance that can emit phosphorescence. Alternatively, provided is a novel substance with high emission efficiency. An organometallic complex in which a 4-arylpyrimidine derivative is a ligand and iridium is a central metal is provided. Specifically, an organometallic complex having a structure represented by a general formula (G1) is provided. In the general formula (G1), R1 represents a substituted or unsubstituted alkyl group having 1 to 4 carbon atoms or a substituted or unsubstituted aryl group having 6 to 10 carbon atoms, R2 represents any of hydrogen, a substituted or unsubstituted alkyl group having 1 to 4 carbon atoms, and a substituted or unsubstituted phenyl group, R3 represents hydrogen or a substituted or unsubstituted alkyl group having 1 to 4 carbon atoms, and Ar1 represents a substituted or unsubstituted arylene group having 6 to 10 carbon atoms.
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: May 29, 2018
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hideko Inoue, Tomoya Yamaguchi, Satoko Shitagaki, Takahiro Ushikubo, Satoshi Seo, Yui Yamada, Hiromi Nowatari
  • Patent number: 9960371
    Abstract: A novel organometallic complex having high heat resistance is provided. The organometallic complex, which includes a structure represented by General Formula (G1), includes iridium and a ligand. The ligand has a pyrazine skeleton. Iridium is bonded to nitrogen at the 1-position of the pyrazine skeleton. A phenyl group that has an alkyl group as a substituent is bonded at each of the 2- and 3-positions of the pyrazine skeleton, and a phenyl group that has a cyano group as a substituent is bonded at the 5-position of the pyrazine skeleton. The ortho position of the phenyl group bonded at the 2-position of the pyrazine skeleton is bonded to iridium. In the formula, each of A1 to A4 independently represents a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: May 1, 2018
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Tomoya Yamaguchi, Hideko Inoue, Hiromitsu Kido, Satoshi Seo, Tatsuyoshi Takahashi
  • Patent number: 9732398
    Abstract: A process for the extraction of gold from a gold-bearing ore or concentrate, comprising the steps of leaching the gold-bearing ore or concentrate with a lixiviant of hydrochloric acid and magnesium chloride at atmospheric pressure at a temperature of at least 90° C. and an Eh of at least 900 mV. After a liquid/solids separation step, the solution obtained is subjected to an organic solvent extraction step using an oxime to obtain a solution of organic solvent containing gold, which is stripped with sodium thiosulphate to recover gold. The extraction may be operated to extract gold with or without iron. Materials used in the process may be recycled. The process avoids environmental and other hazards associated with the use of cyanide to extract gold.
    Type: Grant
    Filed: April 8, 2013
    Date of Patent: August 15, 2017
    Assignee: Process Research Ortech Inc.
    Inventors: Vaikuntam I. Lakshmanan, Ramamritham Sridhar, M. A. Halim
  • Patent number: 9708690
    Abstract: The present disclosure relates to hydrometallurgical methods for the isolation and recovery of platinum from rhenium-containing materials, and more particularly, from superalloys containing rhenium, platinum, and other metals. The disclosure also relates to apparatuses capable of carrying out the hydrometallurgical methods and the product streams generated from the methods and apparatuses.
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: July 18, 2017
    Assignee: Techemet, LLC
    Inventors: Louis A. Britton, Georges Z. Markarian
  • Patent number: 9700883
    Abstract: A polymeric compound is provided having the general formula (A) wherein R is an alkyl chain preferably having from 1 to 6 carbon atoms in the chain which may be either saturated or unsaturated and may have substituents attached to the chain, and R? and R?, which may be the same or different from each other and preferably have from 1 to 4 carbon atoms in a chain, are selected from alkyl groups, substituted or unsubstituted, or R? and R? are linked to form a saturated or unsaturated cyclic moiety incorporating the adjacent nitrogen atom, with or without additional heteroatoms in the ring. The polymeric compound is preferably in a particulate form and most particularly in the form of nanoparticles. A method of producing the polymers is disclosed. A method of adsorbing, separating and stripping the polymers is also disclosed.
    Type: Grant
    Filed: January 20, 2012
    Date of Patent: July 11, 2017
    Assignee: STELLENBOSCH UNIVERSITY
    Inventors: Lubertus Klumperman, Klaus Robert Koch, Eugene Marlin Lakay
  • Patent number: 9673408
    Abstract: The present invention relates to metal-carbene complexes of the general formula (I), where variable M is Ir or Pt and that are characterized by variable R being a group of formula (a). The complexes are used in organic electronic devices, especially OLEDs (Organic Light-Emitting Diodes), illuminating elements, stationary visual display units and in material layers as emitter, charge transport material and/or charge or exiton blocker.
    Type: Grant
    Filed: July 29, 2014
    Date of Patent: June 6, 2017
    Assignee: UDC Ireland Limited
    Inventors: Peter Murer, Glauco Battagliarin, Korinna Dormann, Stefan Metz, Gerhard Wagenblast, Flavio Luiz Benedito, Soichi Watanabe, Christian Lennartz, Thomas Geβner
  • Patent number: 9624386
    Abstract: A method to prepare a metallic nanoparticle dispersion includes the steps of forming a metallic precursor dispersion or solution by adding a metallic precursor to a dispersion medium including: (a) a solvent according to Formula I, and wherein R1 and R2 represent an optionally substituted alkyl group, R1 and R2 may form a ring, (b) a carboxylic acid according to Formula II, R—COOH?? Formula II wherein R is an optionally substituted C2-C7 alkyl, alkenyl or alkynyl group, reducing the metallic precursor with a reducing agent to form metallic nanoparticles, sedimenting the metallic nanoparticles to obtain a highly concentrated metallic nanoparticle dispersion comprising at least 15 wt % of metallic nanoparticles.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: April 18, 2017
    Assignee: AGFA GEVAERT
    Inventors: Dirk Bollen, Nicolas Vriamont, Jaroslav Katona
  • Patent number: 9528169
    Abstract: 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: Grant
    Filed: July 21, 2014
    Date of Patent: December 27, 2016
    Assignee: The Curators of the University of Missouri
    Inventors: Hendrik P. Engelbrecht, Cathy S. Cutler, Leonard Manson, Stacy Lynn Wilder
  • Patent number: 9508941
    Abstract: Provided is a novel organometallic complex which can be synthesized easily and emits phosphorescence, or a compound which emits red phosphorescence. The inventors focused on easy synthesis of an m-aminophenyl pyrazine derivative represented by the following general formula (G0), synthesized an organometallic complex having a structure in which the derivative is coordinated to a Group 9 or Group 10 metal ion, and further synthesized a useful substance which emits red phosphorescence.
    Type: Grant
    Filed: May 23, 2014
    Date of Patent: November 29, 2016
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hideko Inoue, Tomoka Nakagawa, Satoshi Seo
  • Patent number: 9472762
    Abstract: Iridium organometallic complexes containing a substituted dibenzo[f,h]quinoxaline of formula (I) are provided. These compounds are useful as orange or red emitting components of a light emitting layer in an electronic device.
    Type: Grant
    Filed: January 9, 2013
    Date of Patent: October 18, 2016
    Assignee: UDC Ireland Limited
    Inventors: Peter Murer, Stephan Allenbach, Gerhard Wagenblast, Christian Schildknecht, Christian Lennartz
  • Patent number: 9441304
    Abstract: The present invention relates to an aqueous composition for and a process for etching copper and copper alloys applying said aqueous composition. The aqueous composition comprises a source for Fe3+ ions, at least one acid, at least one triazole or tetrazole derivative, and at least one etching additive selected from N-alkylated iminodipropionic acid, salts thereof, modified polyglycol ethers and quaternary ureylene polymers. The aqueous composition is particularly useful for making of fine structures in the manufacture of printed circuit boards, IC substrates and the like.
    Type: Grant
    Filed: July 29, 2013
    Date of Patent: September 13, 2016
    Assignee: Atotech Deutschland GmbH
    Inventors: Norbert Lützow, Gabriela Schmidt, Dirk Tews
  • Patent number: 9272288
    Abstract: A biomass conditioning system and method, the system comprising a chamber and an airflow loop, the chamber comprising a lower part adapted to receive biomass and comprising grinding elements, cutting elements and an air input, an airflow from the air input and rotation of the elements creating an uplifting; and an upper part comprising an inner chamber generally centered within an outer chamber, the outer chamber comprising a first outlet and the inner chamber comprising a second outlet; and a flange selectively connecting the lower part with the inner chamber and the lower part with the outer chamber; and the airflow loop comprising a source of input air in the lower part, a first exhaust connected to the first outlet and evacuating air and biomass particles from the inner chamber, and a second exhaust connected to the second outlet and evacuating mist and air from the outer chamber; in which the flange diverts, from the uplifting vortex and under action of a vacuum created between the air input and the seco
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: March 1, 2016
    Assignee: LAKSON INTERNATIONAL DEVELOPMENT INC.
    Inventor: Mohammed Simo Lakhmiri
  • Patent number: 9273570
    Abstract: In a first processing chamber, a feedstock may be combined with plasma from three plasma torches to form a first fluid mixture. Each torch may have a working gas including water vapor, oxygen, and carbon dioxide. The first fluid mixture may be cooled and may contact a first heat exchange device. Water in the first heat exchange device may be converted to steam to generate electric power. The output fluid from the first heat exchange device may be separated into one or more components. A syngas may be derived from the one or more components and have a ratio of carbon monoxide to hydrogen of about 1:2. The syngas may be heated in a second processing chamber and then cooled to form a second admixture. The second admixture may contact a second heat exchange device that may make steam to power a second electrical generator.
    Type: Grant
    Filed: September 5, 2013
    Date of Patent: March 1, 2016
    Assignee: Powerdyne, Inc.
    Inventors: Geoffrey Hirson, Gus F. Shouse
  • Patent number: 9184398
    Abstract: Provided is a novel substance that can emit phosphorescence. Alternatively, provided is a novel substance with high emission efficiency. An organometallic complex in which a 4-arylpyrimidine derivative is a ligand and iridium is a central metal is provided. Specifically, an organometallic complex having a structure represented by a general formula (G1) is provided. In the general formula (G1), R1 represents a substituted or unsubstituted alkyl group having 1 to 4 carbon atoms or a substituted or unsubstituted aryl group having 6 to 10 carbon atoms, R2 represents any of hydrogen, a substituted or unsubstituted alkyl group having 1 to 4 carbon atoms, and a substituted or unsubstituted phenyl group, R3 represents hydrogen or a substituted or unsubstituted alkyl group having 1 to 4 carbon atoms, and Ar1 represents a substituted or unsubstituted arylene group having 6 to 10 carbon atoms.
    Type: Grant
    Filed: December 29, 2014
    Date of Patent: November 10, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hideko Inoue, Tomoya Yamaguchi, Satoko Shitagaki, Takahiro Ushikubo, Satoshi Seo, Yui Yamada, Hiromi Nowatari
  • Patent number: 9040513
    Abstract: Described is a process for preparing platinum-carbene complexes.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: May 26, 2015
    Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVRSITE DE STRASBOURG
    Inventors: Stéphane Bellemin-Laponnaz, Gilles Guichard, Edith Chardon
  • Patent number: 9005555
    Abstract: A method for preparing solid ruthenium nitrosyl nitrate, including: 1) drying a ruthenium-containing spent catalyst, and calcining the spent catalyst, and cooling to room temperature, whereby yielding a ruthenium-containing solid; 2) grinding the ruthenium-containing solid to yield a powder, introducing the powder to a fluidized bed reactor, aerating the fluidized bed reactor with nitrogen or an inert gas, charging hydrogen, whereby yielding ruthenium metal; 3) contacting a mixed gas of ozone and air with the ruthenium metal, whereby yielding gaseous ruthenium tetroxide; 4) introducing the gaseous ruthenium tetroxide into a three-stage absorption plant, whereby yielding an acid solution including ruthenium nitrate; 5) adding a solid of sodium nitrite to the acid solution, stirring, and heating a resulting solution, whereby yielding a solution of ruthenium nitrosyl nitrate; and 6) extracting the solution of ruthenium nitrosyl nitrate with anhydrous ether.
    Type: Grant
    Filed: September 2, 2014
    Date of Patent: April 14, 2015
    Assignee: Sunshine Kaidi New Energy Group Co., Ltd.
    Inventors: Li Xu, Bo Lai, Dechen Song, Qianqian Liu, Yiming Han
  • Patent number: 8986424
    Abstract: Method for rhenium recovery from copper solvent extraction solution. It is determined whether the copper solvent extraction solution contains trace amounts of rhenium. If so, a feedstock from the copper solvent extraction solution is provided, which is then filtered, producing filtered feedstock. Trace amounts of rhenium are absorbed from the filtered feedstock using a supply of ion exchange resin selective for rhenium. The ion exchange resin is washed. Trace amounts of rhenium are eluted from the ion exchange resin using a first amount of eluent, a second amount of eluent and a third amount of eluent. The first amount and the third amount of eluent produce supplemental feedstock and the second amount of eluent produces rhenium eluate. The rhenium eluate is collected and the ion exchange resin is protonated.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: March 24, 2015
    Assignee: Asarco LLC
    Inventor: Neil Nebeker
  • Patent number: 8986632
    Abstract: A method for recovering cobalt, ruthenium, and aluminum from spent Co—Ru/Al2O3 catalyst. First, Co—Ru/Al2O3 spent catalyst is subjected to hydrocarbon removal, reaction with hydrogen, and alkali fusion to obtain a slag. The slag is subjected to acid leaching, precipitation of cobalt with oxalic acid or ammonium oxalate, reduction of cobalt oxalate, and dissolution of cobalt metal with nitric acid to obtain Co(NO3)2.6 H2O. The effluent of acid leaching is subjected to reaction with ethanol, filtration to obtain a filtrate and residue, dissolution of the residue with concentrated hydrochloric acid, and vacuum distillation to obtain ?-RuCl3.x H2O. Aluminum hydroxide is prepared from the filtrate through carbonation and calcination. The cobalt yield is ?97%; the ruthenium yield is ?95%, and the aluminum yield is ?92%.
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: March 24, 2015
    Assignee: Sunshine Kaidi New Energy Group Co., Ltd.
    Inventors: Qianqian Liu, Yiming Han, Dechen Song, Li Xu, Bo Lai
  • Patent number: 8974572
    Abstract: 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: Grant
    Filed: October 19, 2012
    Date of Patent: March 10, 2015
    Inventor: Haruo Uehara
  • Patent number: 8940257
    Abstract: 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: Grant
    Filed: February 10, 2012
    Date of Patent: January 27, 2015
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Takashi Ouchi, Yoshio Nishimura
  • Patent number: 8931642
    Abstract: A method of extracting targeted metallic minerals from ores that contain sulfide metallic minerals along with oxide minerals, carbonate minerals, silicate minerals, halide minerals or combinations thereof. In the method, an ore slurry containing the metallic mineral in oxide, carbonate, silicate or halide form is provided. The slurry is activated by adding sodium thiosulfate and sodium metabisulfite, whereby the targeted metallic mineral forms an intermediary metal complex with the sodium thiosulfate and sodium metabisulfite. One or more metal release components are introduced into the ore slurry; whereby the targeted metallic mineral is released from the intermediary metal complex to form a metal sponge. This metal sponge is then subjected to a flotation process, whereby the targeted metallic mineral is drawn out of the ore slurry and thereby extracted from the ore.
    Type: Grant
    Filed: January 13, 2014
    Date of Patent: January 13, 2015
    Inventor: William D. Simmons
  • Patent number: 8927637
    Abstract: A polymer, a composition, and uses for either are disclosed. The polymer is derived from at least two monomers: acrylic-x and an alkylamine, and has attached to the polymer backbone a functional group capable of scavenging at least one metal. The polymer has a polymer backbone with a fluorescing quantity of conjugated double bonds, thereby providing a method for controlling metal scavenging via fluorescence. These polymers have many uses in various media, including wastewater systems.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: January 6, 2015
    Assignee: Nalco Company
    Inventors: Paul J. Zinn, Winston Su, Rebecca L. Stiles, Darlington Mlambo
  • Patent number: 8921548
    Abstract: Provided is a novel substance that can emit phosphorescence. Alternatively, provided is a novel substance with high emission efficiency. An organometallic complex in which a 4-arylpyrimidine derivative is a ligand and iridium is a central metal is provided. Specifically, an organometallic complex having a structure represented by a general formula (G1) is provided. In the general formula (G1), R1 represents a substituted or unsubstituted alkyl group having 1 to 4 carbon atoms or a substituted or unsubstituted aryl group having 6 to 10 carbon atoms, R2 represents any of hydrogen, a substituted or unsubstituted alkyl group having 1 to 4 carbon atoms, and a substituted or unsubstituted phenyl group, R3 represents hydrogen or a substituted or unsubstituted alkyl group having 1 to 4 carbon atoms, and Ar1 represents a substituted or unsubstituted arylene group having 6 to 10 carbon atoms.
    Type: Grant
    Filed: October 20, 2011
    Date of Patent: December 30, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hideko Inoue, Tomoya Yamaguchi, Satoko Shitagaki, Takahiro Ushikubo, Satoshi Seo, Yui Yamada, Hiromi Nowatari
  • Patent number: 8920773
    Abstract: Various embodiments provide a process roasting a metal bearing material under oxidizing conditions to produce an oxidized metal bearing material, roasting the oxidized metal bearing material under reducing conditions to produce a roasted metal bearing material, leaching the roasted metal hearing material in a basic medium to yield a pregnant leach solution, conditioning the pregnant leach solution to thrill a preprocessed metal bearing material; and leaching the preprocessed metal bearing material in acid medium.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: December 30, 2014
    Assignee: Freeport Minerals Corporation
    Inventors: Joanna M. Robertson, Thomas R. Bolles, Wayne W. Hazen, Lawrence D. May, Jay C. Smith, David R. Baughman
  • Publication number: 20140377151
    Abstract: A method for recovering cobalt, ruthenium, and aluminum from spent Co—Ru/Al2O3 catalyst. First, Co—Ru/Al2O3 spent catalyst is subjected to hydrocarbon removal, reaction with hydrogen, and alkali fusion to obtain a slag. The slag is subjected to acid leaching, precipitation of cobalt with oxalic acid or ammonium oxalate, reduction of cobalt oxalate, and dissolution of cobalt metal with nitric acid to obtain Co(NO3)2.6H2O. The effluent of acid leaching is subjected to reaction with ethanol, filtration to obtain a filtrate and residue, dissolution of the residue with concentrated hydrochloric acid, and vacuum distillation to obtain ?-RuCl3.xH2O. Aluminum hydroxide is prepared from the filtrate through carbonation and calcination. The cobalt yield is ?97%; the ruthenium yield is ?95%, and the aluminum yield is ?92%.
    Type: Application
    Filed: September 5, 2014
    Publication date: December 25, 2014
    Inventors: Qianqian LIU, Yiming HAN, Dechen SONG, Li XU, Bo LAI
  • Patent number: 8916116
    Abstract: 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: Grant
    Filed: December 12, 2012
    Date of Patent: December 23, 2014
    Assignee: Process Research Ortech inc.
    Inventors: Vaikuntam I. Lakshmanan, Ramamritham Sridhar, Jonathan Chen, M. A. Halim, Robert DeLaat
  • Publication number: 20140369905
    Abstract: A method for preparing solid ruthenium nitrosyl nitrate, including : 1) drying a ruthenium-containing spent catalyst, and calcining the spent catalyst, and cooling to room temperature, whereby yielding a ruthenium-containing solid; 2) grinding the ruthenium-containing solid to yield a powder, introducing the powder to a fluidized bed reactor, aerating the fluidized bed reactor with nitrogen or an inert gas, charging hydrogen, whereby yielding ruthenium metal; 3) contacting a mixed gas of ozone and air with the ruthenium metal, whereby yielding gaseous ruthenium tetroxide; 4) introducing the gaseous ruthenium tetroxide into a three-stage absorption plant, whereby yielding an acid solution including ruthenium nitrate; 5) adding a solid of sodium nitrite to the acid solution, stirring, and heating a resulting solution, whereby yielding a solution of ruthenium nitrosyl nitrate; and 6) extracting the solution of ruthenium nitrosyl nitrate with anhydrous ether.
    Type: Application
    Filed: September 2, 2014
    Publication date: December 18, 2014
    Inventors: Li XU, Bo LAI, Dechen SONG, Qianqian LIU, Yiming HAN
  • Patent number: 8889257
    Abstract: 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: Grant
    Filed: October 6, 2008
    Date of Patent: November 18, 2014
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventors: Debra R Rolison, Jeffrey W Long, Christopher N. Chervin, Justin C Lytle, Katherine A. Pettigrew
  • Patent number: 8883097
    Abstract: 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: Grant
    Filed: November 13, 2007
    Date of Patent: November 11, 2014
    Assignee: University of Cape Town
    Inventors: Deidre Jane Bradshaw, Andrew James Haigh Newell
  • Publication number: 20140328736
    Abstract: 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: Application
    Filed: July 21, 2014
    Publication date: November 6, 2014
    Inventors: Hendrik P. Engelbrecht, Cathy S. Cutler, Leonard Manson, Stacy Lynn Wilder
  • Patent number: 8828353
    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: Grant
    Filed: January 8, 2013
    Date of Patent: September 9, 2014
    Assignee: Freeport Minerals Corporation
    Inventors: Barbara J. Savage, David G. Meadows, Wayne W. Hazen
  • Publication number: 20140248198
    Abstract: 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: Application
    Filed: October 5, 2012
    Publication date: September 4, 2014
    Applicant: TOSOH CORPORATION
    Inventors: Yukinori Sudo, Takahiro Masuda, Setsuo Yoshida
  • Patent number: 8790608
    Abstract: 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: Grant
    Filed: September 12, 2008
    Date of Patent: July 29, 2014
    Assignee: Nalco Company
    Inventors: Brian T. Holland, Sascha Welz
  • Patent number: 8765480
    Abstract: 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: Grant
    Filed: April 2, 2012
    Date of Patent: July 1, 2014
    Assignee: ARKRAY, Inc.
    Inventor: Yuka Shimomura
  • Patent number: 8753599
    Abstract: 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: Grant
    Filed: February 6, 2012
    Date of Patent: June 17, 2014
    Assignee: Nalco Company
    Inventors: Bruce A. Keiser, Jitendra T. Shah, John V. Meier, Paul J. Zinn, Jianwei Yuan, Raul Espinosa, Rebecca L. Stiles, Richard Mimna, Wayne M. Carlson
  • Patent number: 8753590
    Abstract: 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: Grant
    Filed: November 14, 2012
    Date of Patent: June 17, 2014
    Assignee: Mallinckrodt LLC
    Inventor: Luis Antonio Miguel Marques Barbosa
  • Patent number: 8747789
    Abstract: 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: Grant
    Filed: April 6, 2010
    Date of Patent: June 10, 2014
    Assignee: Nalco Company
    Inventors: Paul J. Zinn, Jitendra T. Shah, William J. Andrews
  • Publication number: 20140154156
    Abstract: 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: Application
    Filed: May 30, 2012
    Publication date: June 5, 2014
    Applicant: National University Corporation Hamamatsu University School of Medicine
    Inventors: Kazushige Suzuki, Yoshinori Muranaka
  • Patent number: RE45471
    Abstract: 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: Grant
    Filed: March 3, 2014
    Date of Patent: April 14, 2015
    Assignee: Nanocarrier Co., Ltd.
    Inventors: Mitsunori Harada, Iulian Bobe, Takashi Shimizu