Group Vb Metal (v, Nb, Or Ta) Patents (Class 423/62)
  • Patent number: 10435637
    Abstract: The present invention relates generally to processes for hydromethanating a carbonaceous feedstock in a hydromethanation reactor to a methane-enriched raw product stream, and more specifically to processing of solid char by-product removed from the hydromethanation reactor to improve the carbon utilization and thermal efficiency and economics of the overall process by co-producing electric power and steam from the by-product char in addition to the end-product pipeline quality substitute natural gas.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: October 8, 2019
    Assignee: GreatPoint Energy, Inc.
    Inventors: Avinash Sirdeshpande, Earl T. Robinson, Pattabhi K. Raman, Kenneth Keckler
  • Patent number: 10344231
    Abstract: The present invention relates generally to processes for hydromethanating a carbonaceous feedstock in a hydromethanation reactor to a methane-enriched raw product stream, and more specifically to processing of solid char by-product removed from the hydromethanation reactor to improve the carbon utilization and thermal efficiency of the overall process and thereby lower the net costs of the end-product pipeline quality substitute natural gas.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: July 9, 2019
    Assignee: GreatPoint Energy, Inc.
    Inventors: Earl T. Robinson, Avinash Sirdeshpande, Pattabhi K. Raman, Kenneth Keckler
  • Patent number: 10125024
    Abstract: The present invention provides a system and method for purifying and preparing vanadium pentoxide powder. Industrial grade vanadium pentoxide is converted to vanadium oxytrichloride by low temperature fluidizing chlorination, wherein chlorinating gas is preheated via heat exchange between fluidizing gas and chlorination flue gas, and an appropriate amount of air is added to enable a part of carbon powder to combust so as to achieve a balanced heat supply during the chlorination, thereby increasing the efficiency of chlorination and ensuring good selectivity in low temperature chlorination. The vanadium oxytrichloride is purified by rectification, and then subjected to fluidized gas phase ammonification, thereby obtaining ammonium metavanadate, and further obtaining a high-purity vanadium pentoxide powder product through fluidized calcination.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: November 13, 2018
    Assignees: INSTITUTE OF PROCEES ENGINEERING CHINESE ACADEMY OF SCIENCES, BEIJING ZHONGKAIHONGDE TECHNOLOGY CO., LTD.
    Inventors: Qingshan Zhu, Haitao Yang, Chuanlin Fan, Wenheng Mu, Jibin Liu, Cunhu Wang, Qixun Ban
  • Patent number: 10112846
    Abstract: The present invention provides a system and method for producing high-purity vanadium tetraoxide powder. Industrial grade vanadium pentoxide is converted to vanadium oxytrichloride by low temperature fluidizing chlorination, wherein chlorinating gas is preheated via heat exchange between fluidizing gas and chlorination flue gas, and an appropriate amount of air is added to enable a part of carbon powder to combust so as to achieve a balanced heat supply during the chlorination, thereby increasing the efficiency of chlorination and ensuring good selectivity in low temperature chlorination. The vanadium oxytrichloride is purified by rectification, and then subjected to fluidized gas phase hydrolyzation, thereby producing a high-purity vanadium pentoxide product and a by-product solution of hydrochloric acid, and further obtaining a high-purity vanadium tetraoxide powder product through fluidized hydrogen reduction.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: October 30, 2018
    Assignees: INSTITUTE OF PROCESS ENGINEERING, CHINESE ACADEMY OF SCIENCES, BEIJING ZHONGKAIHONGDE TECHNOLOGY CO., LTD
    Inventors: Qingshan Zhu, Chuanlin Fan, Wenheng Mu, Jibin Liu, Cunhu Wang, Qixun Ban
  • Patent number: 10099939
    Abstract: The present invention provides a system and method for producing high-purity vanadium pentoxide powder. Industrial grade vanadium pentoxide is converted to vanadium oxytrichloride by low temperature fluidizing chlorination, wherein chlorinating gas is preheated via heat exchange between fluidizing gas and chlorination flue gas, and an appropriate amount of air is added to enable a part of carbon powder to combust so as to achieve a balanced heat supply during the chlorination, thereby increasing the efficiency of chlorination and ensuring good selectivity in low temperature chlorination. The vanadium oxytrichloride is purified by rectification, and then subjected to fluidized gas phase hydrolyzation and fluidized calcination, thereby producing a high-purity vanadium pentoxide product and a by-product of hydrochloric acid solution.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: October 16, 2018
    Assignees: INSTITUTE OF PROCESS ENGINEERING, CHINESE ACADEMY OF SCIENCES, BEIJING ZHONGKAIHONG DE TECHNOLOGY CO., LTD
    Inventors: Chuanlin Fan, Qingshan Zhu, Wenheng Mu, Jibin Liu, Cunhu Wang, Qixun Ban
  • Patent number: 10053371
    Abstract: The present invention provides a system and method for preparing high-purity vanadium pentoxide powder. Industrial grade vanadium pentoxide is converted to vanadium oxytrichloride by low temperature fluidizing chlorination, wherein chlorinating gas is preheated via heat exchange between fluidizing gas and chlorination flue gas, and an appropriate amount of air is added to enable a part of carbon powder to combust so as to achieve a balanced heat supply during the chlorination, thereby increasing the efficiency of chlorination and ensuring good selectivity in low temperature chlorination. The vanadium oxytrichloride is subjected to purification by rectification, ammonium salt precipitation and fluidized calcination, thereby obtaining high-purity vanadium pentoxide, wherein the ammonia gas produced during calcination is condensed and then recycled for ammonium salt precipitation.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: August 21, 2018
    Assignees: INSTITUTE OF PROCESS ENGINEERING, CHINESE ACADEMY OF SCIENCES, BEIJING ZHONGKAIHONGDE TECHNOLOGY CO., LTD
    Inventors: Chuanlin Fan, Qingshan Zhu, Wenheng Mu, Jibin Liu, Cunhu Wang, Qixun Ban
  • Patent number: 9688534
    Abstract: Methods for producing nanostructures, particularly Group III-V semiconductor nanostructures, are provided. The methods include use of novel Group III and/or Group V precursors, novel surfactants, oxide acceptors, high temperature, and/or stable co-products. Related compositions are also described. Methods and compositions for producing Group III inorganic compounds that can be used as precursors for nanostructure synthesis are provided. Methods for increasing the yield of nanostructures from a synthesis reaction by removal of a vaporous by-product are also described.
    Type: Grant
    Filed: January 6, 2016
    Date of Patent: June 27, 2017
    Assignee: NANOSYS, INC.
    Inventors: Erik C. Scher, Mihai A. Buretea, William P. Freeman, Joel Gamoras, Baixin Qian, Jeffrey A. Whiteford
  • Patent number: 9416431
    Abstract: A process for treating a feedstock is provided. The feedstock comprises a mineral and/or a metal oxide/silicate derived from or associated with a mineral. The process comprises treating the feedstock by reacting, in a reaction step, the mineral and/or the metal oxide/silicate derived from or associated with a mineral, with an ammonium acid fluoride having the generic formula NH4F.xHF, wherein 1<x?5. An ammonium fluorometallate compound is produced as a reaction product.
    Type: Grant
    Filed: September 9, 2010
    Date of Patent: August 16, 2016
    Assignee: The South African Nuclear Energy Corporation Limited
    Inventors: Willem Liebenberg Retief, Nelius Dempers Retief, Johannes Theodorus Nel, Wilhelmina Du Plessis, Philippus Lodewyk Crouse, Johannes Petrus Le Roux
  • Patent number: 9206056
    Abstract: A process for treating a feedstock comprising tantalum- and/or niobium-containing compounds is provided. The process includes contacting the feedstock with a gaseous fluorinating agent, thereby to fluorinate tantalum and/or niobium present in the feedstock compounds. The resultant fluorinated tantalum and/or niobium compounds are recovered.
    Type: Grant
    Filed: April 1, 2011
    Date of Patent: December 8, 2015
    Assignee: The South African Nuclear Energy Corporation Limited
    Inventors: Pieter Andries Blatt Carstens, Jacobus Beyers Wagener, Andrew Dirk Pienaar
  • Publication number: 20150139873
    Abstract: The invention relates to a method for the extraction of vanadium from various sources in the form of vanadiumpentoxide, V2O5, from a source containing vanadium. The method includes the steps of: providing a source of V2O5, heating the source to a temperature of at least 1000° C., evaporating V2O5 from the heated source and recovering the evaporated V2O5.
    Type: Application
    Filed: July 3, 2013
    Publication date: May 21, 2015
    Inventors: Seshadri Seetharaman, Sridhar Seetharaman, Lidong Teng, Piotr Scheller
  • Patent number: 8920924
    Abstract: Disclosed are a method of producing fine particulate alkali metal niobate in a liquid phase system, wherein the size and shape of particles of the fine particulate alkali metal niobate can be controlled; and fine particulate alkali metal niobate having a controlled shape and size. Specifically disclosed are a method of producing particulate sodium-potassium niobate represented by the formula (1): NaxK(1-x)NbO3 (1), the method including four specific steps, wherein a high-concentration alkaline solution containing Na+ ion and K+ ion is used as an alkaline solution; and particulate sodium-potassium niobate having a controlled shape and size.
    Type: Grant
    Filed: April 5, 2010
    Date of Patent: December 30, 2014
    Assignees: Sakai Chemical Industry Co., Ltd., TOHOKU University, Fuji Ceramics Corporation
    Inventors: Atsushi Muramatsu, Kiyoshi Kanie, Atsuki Terabe, Yasuhiro Okamoto, Hideto Mizutani, Satoru Sueda, Hirofumi Takahashi
  • Patent number: 8906340
    Abstract: The present disclosure relates to reacting tin metal with crude TiCl4 containing arsenic to produce pure TiCl4, SnCl4, and an arsenic solid co-product. In some embodiments, the contaminant vanadium is removed as well. The reaction is preferably done in a continuous fashion in two stages for maximum through-put and utility at an elevated temperature. Distillation can be used to purify the TiCl4 produced and simultaneously yield a purified SnCl4 product. The synthesis of SnCl4 in this method utilizes waste chloride to save virgin chlorine which would otherwise be used.
    Type: Grant
    Filed: February 22, 2012
    Date of Patent: December 9, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventor: Lisa Edith Helberg
  • Patent number: 8871163
    Abstract: Process for purifying vanadium oxide that includes cationic exchange resin and solvent extraction.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: October 28, 2014
    Assignee: American Vanadium Corp.
    Inventor: Michael Adam Drozd
  • Publication number: 20130315804
    Abstract: The present invention is directed to a process of treating fly ash and/or fly ash leachate to immobilize heavy metals contained in such fly ash and/or fly ash leachate, which process comprises treating such fly ash and/or fly ash leachate with a soluble ferrous compound under alkaline conditions. This process may be conducted in the absence of any pH modification, mixing (in the sense of a physical blending with a solid material), drying or heating steps, making it practical for treatment of alkaline fly ash (and other coal combustion by-products) which is currently stored in landfills or wet ash lagoons, particularly fly ash which has been recovered from flue gas streams treated with highly alkaline materials such as trona, bicarbonate or limestone and the like.
    Type: Application
    Filed: May 10, 2013
    Publication date: November 28, 2013
    Applicant: FMC Wyoming Corporation
    Inventors: Aileen Halverson, Aaron Reichl
  • Publication number: 20130216455
    Abstract: A process for treating a feedstock comprising tantalum- and/or niobium-containing compounds is provided. The process includes contacting the feedstock with a gaseous fluorinating agent, thereby to fluorinate tantalum and/or niobium present in the feedstock compounds. The resultant fluorinated tantalum and/or niobium compounds are recovered.
    Type: Application
    Filed: April 1, 2011
    Publication date: August 22, 2013
    Inventors: Jacobus Beyers Wagener, Andrew Dirk Pienaar, Pieter Andries Blatt Carstens
  • Patent number: 8415000
    Abstract: Stabilized precursor solutions can be used to form radiation inorganic coating materials. The precursor solutions generally comprise metal suboxide cations, peroxide-based ligands and polyatomic anions. Design of the precursor solutions can be performed to achieve a high level of stability of the precursor solutions. The resulting coating materials can be designed for patterning with a selected radiation, such as ultraviolet light, x-ray radiation or electron beam radiation. The radiation patterned coating material can have a high contrast with respect to material properties, such that development of a latent image can be successful to form lines with very low line-width roughness and adjacent structures with a very small pitch.
    Type: Grant
    Filed: October 28, 2011
    Date of Patent: April 9, 2013
    Assignee: Inpria Corporation
    Inventors: Jason K. Stowers, Alan J. Telecky, Douglas A. Keszler, Andrew Grenville
  • Patent number: 8404199
    Abstract: The present disclosure generally relates to Vanadium Boride nanoparticle synthesis. In some examples, a method is described that includes fluorine based Vanadium Boride nanoparticle synthesis. In some examples, the method includes providing Vanadium Boride battery waste products, treating the battery waste products to treat precursors for fluorination, heating the precursors for fluorination to form VF3 and BH3 and heating the VF3 and BH3 to form VB2 nanorods in a liquid mixture, wherein the method is performed at less than approximately 700° C.
    Type: Grant
    Filed: August 6, 2010
    Date of Patent: March 26, 2013
    Assignee: Empire Technology Development LLC
    Inventor: Ezekiel Kruglick
  • Patent number: 8398929
    Abstract: The disclosure provides a device and method used to produce a tubular structure made of a refractory metal compound. In particular, the disclosure provides a device and method used to produce a tubular structure made of a refractory metal compound by reacting a green tubular structure made of a refractory metal with at least one reactive gas.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: March 19, 2013
    Assignee: Nitride Solutions, Inc.
    Inventor: Jason Schmitt
  • Publication number: 20130064742
    Abstract: A process is disclosed for separation and recovery of vanadium, molybdenum, iron, tungsten, cobalt and nickel from alumina-based materials, mattes, ores, manufacturing by-products and waste. These elements are oxidized. The oxides are reacted with gaseous HCl to form volatile chloride-bearing compounds that subsequently sublimate. The volatile compounds are condensed in a downward-stepped thermal gradient that allows collection of moderate to high purity compounds of individual elements with exception of a nickel-cobalt co-condensate. Nickel is separated from cobalt by precipitation of nickel chloride from concentrated HCl pressurized with gaseous HCl.
    Type: Application
    Filed: September 17, 2012
    Publication date: March 14, 2013
    Applicant: METALS RECOVERY TECHNOLOGY INC.
    Inventor: JOSEPH L. THOMAS
  • Patent number: 8383070
    Abstract: 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: Grant
    Filed: March 8, 2011
    Date of Patent: February 26, 2013
    Assignees: World Resources Company, WRC World Resources Company GmbH
    Inventors: Eberhard Luederitz, Ulrich R. Schlegel, Peter T. Halpin, Dale L. Schneck
  • Publication number: 20120328496
    Abstract: A process for treating a feedstock is provided. The feedstock comprises a mineral and/or a metal oxide/silicate derived from or associated with a mineral. The process comprises treating the feedstock by reacting, in a reaction step, the mineral and/or the metal oxide/silicate derived from or associated with a mineral, with an ammonium acid fluoride having the generic formula NH4F.xHF, wherein 1<x?5. An ammonium fluorometallate compound is produced as a reaction product.
    Type: Application
    Filed: September 9, 2010
    Publication date: December 27, 2012
    Inventors: Willem Liebenberg Retief, Nelius Dempers Retief, Johannes Theodorus Nel, Wilhelmina Du Plessis, Philippus Lodewyk Crouse, Johannes Petrus Le Roux
  • Patent number: 8333941
    Abstract: 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: Grant
    Filed: October 19, 2009
    Date of Patent: December 18, 2012
    Assignee: STC.UNM
    Inventors: Plamen Atanassov, Elise Switzer, Datye Abhaya, Timothy Olson, Daniel Konopka, Svitlana Pylypenko, Timothy L Ward
  • Patent number: 8277766
    Abstract: This invention relates to a process that utilizes high-temperature oxidation with controlled stoichiometry in the concentration of vanadium from carbonaceous feedstock materials containing vanadium, such as residues, ashes and soots resulting from the combustion or gasification of petroleum vacuum residuum, petroleum coke, kerogen from oil shale, and bituminous sand, e.g., tar sand or oil sand, or extra heavy oil or other carbonaceous feedstocks that contain vanadium. A preferred embodiment uses a counter-rotating vortex reactor and a cyclonic, entrained-flow reactor to rapidly heat and oxidize feedstock at temperatures in the range of about 2100° F. to 2900° F., resulting in a vapor stream with entrained, solid materials comprising the concentrated vanadium species.
    Type: Grant
    Filed: December 27, 2010
    Date of Patent: October 2, 2012
    Inventors: James G. Hnat, Mark A. Schaffer
  • Patent number: 8268267
    Abstract: A process is disclosed for separation and recovery of vanadium, molybdenum, iron, tungsten, cobalt and nickel from alumina-based materials, mattes, ores, manufacturing by-products and waste. These elements are oxidized. The oxides are reacted with gaseous HCl to form volatile chloride-bearing compounds that subsequently sublimate. The volatile compounds are condensed in a downward-stepped thermal gradient that allows collection of moderate to high purity compounds of individual elements with exception of a nickel-cobalt co-condensate. Nickel is separated from cobalt by precipitation of nickel chloride from concentrated HCl pressurized with gaseous HCl.
    Type: Grant
    Filed: October 19, 2009
    Date of Patent: September 18, 2012
    Assignee: Metals Recovery Technology Inc.
    Inventor: Joseph L. Thomas
  • Publication number: 20120213680
    Abstract: The present invention relates to processes for hydromethanating a nickel-containing (and optionally vanadium-containing) carbonaceous feedstock while recovering at least a portion of the nickel content (and optionally vanadium content) originally present in the carbonaceous feedstock.
    Type: Application
    Filed: February 22, 2012
    Publication date: August 23, 2012
    Applicant: GREATPOINT ENERGY, INC.
    Inventors: Alkis S. Rappas, Robert A. Spitz
  • Publication number: 20120164040
    Abstract: This invention relates to a process that utilizes high-temperature oxidation with controlled stoichiometry in the concentration of vanadium from carbonaceous feedstock materials containing vanadium, such as residues, ashes and soots resulting from the combustion or gasification of petroleum vacuum residuum, petroleum coke, kerogen from oil shale, and bituminous sand, e.g., tar sand or oil sand, or extra heavy oil or other carbonaceous feedstocks that contain vanadium. A preferred embodiment uses a counter-rotating vortex reactor and a cyclonic, entrained-flow reactor to rapidly heat and oxidize feedstock at temperatures in the range of about 2100° F. to 2900° F., resulting in a vapor stream with entrained, solid materials comprising the concentrated vanadium species.
    Type: Application
    Filed: December 27, 2010
    Publication date: June 28, 2012
    Inventors: JAMES G. HNAT, Mark A. Schaffer
  • Patent number: 8137654
    Abstract: Provided is a roasting method capable of reducing both C and S components in minerals down to 0.5% or less, respectively, and securing a yield ratio of 90% or more for the Mo component. In a rotary kiln 7, a V, Mo and Ni containing material containing C and S components is subjected to oxidizing roasting to remove the C and S components from the material before reducing the material by means of a reducing agent in order to recover valuable metals composed of V, Mo and Ni. The rotary kiln is equipped with a burner 11 disposed on a material charge side 8a of the roasting furnace 8 to which the material is charged. In the roasting furnace, a direction along which the material moves and a flow of oxygen-containing gas introduced into the roasting furnace 8 are set to be parallel with each other.
    Type: Grant
    Filed: February 21, 2006
    Date of Patent: March 20, 2012
    Assignees: JFE Material Co., Ltd., Sumitomo Heavy Industries, Ltd.
    Inventors: Kenji Takahashi, Hiroichi Sugimori, Nobuo Ehara
  • Patent number: 8137646
    Abstract: A mixture of zirconium hydroxides or zirconium basic carbonate with vanadium oxide (V205) co-reacts in high temperature aqueous slurry to form respectively an amorphous material, believed to be based on a zirconium analog of a zeolite structure, and a solid solution of zirconium oxide with vanadium oxide. The subject compositions, free of hexavalent chromium, are highly effective in providing blister-free corrosion prevention in typical coil and aerospace grade epoxy primer and color coat combinations.
    Type: Grant
    Filed: March 25, 2008
    Date of Patent: March 20, 2012
    Assignee: The Shepherd Color Company
    Inventor: Simon Boocock
  • Publication number: 20120034141
    Abstract: The present disclosure generally relates to Vanadium Boride nanoparticle synthesis. In some examples, a method is described that includes fluorine based Vanadium Boride nanoparticle synthesis. In some examples, the method includes providing Vanadium Boride battery waste products, treating the battery waste products to treat precursors for fluoridation, heating the precursors for fluoridation to form VF3 and BH3 and heating the VF3 and BH3 to form VB2 nanorods in a liquid mixture, wherein the method is performed at less than approximately 700° C.
    Type: Application
    Filed: August 6, 2010
    Publication date: February 9, 2012
    Applicant: Empire Technology Development LLC
    Inventor: Ezekiel Kruglick
  • Patent number: 8088709
    Abstract: Disclosed are a method for preparing a catalyst, which has excellent nitrogen oxide-removal performance and resistance over a wide temperature range, and the use of the catalyst. According to the disclosed method, the oxidation number and surface defects of the catalyst are changed by applying artificial high energy through mechanical ball milling during the preparation process of the catalyst, instead of applying the addition of a precious metal, the deformation of a support and the use of a co-catalyst in order to increase NOx removal activity, such that activation energy for inducing redox reactions can be decreased.
    Type: Grant
    Filed: March 20, 2007
    Date of Patent: January 3, 2012
    Assignee: Korea Power Engineering Company, Inc.
    Inventors: Sung Ho Hong, Jun Yub Lee, Seok Joo Hong, Sung Pill Cho, Chang Hoon Shin, Sung Chang Hong, Sang Hyun Choi, Suk Jae Kang, Pill Won Seo
  • Publication number: 20110274597
    Abstract: The application of aqueous solution of magnesium bicarbonate and/or calcium bicarbonate in the process of extraction separation and purification of metals is disclosed, wherein the aqueous solution of magnesium bicarbonate and/or calcium bicarbonate is used as an acidity balancing agent, in order to adjust the balancing pH value of the extraction separation process which uses an acidic organic extractant, improve the extraction capacity of organic phase, and increase the concentration of metal ions in the loaded organic phase.
    Type: Application
    Filed: January 14, 2010
    Publication date: November 10, 2011
    Inventors: Xiaowei Huang, Zhiqi Long, Xinlin Peng, Hongwei Li, Guilin Yang, Dali Cui, Chunmei Wang, Na Zhao, Liangshi Wang, Ying Yu
  • Patent number: 7988945
    Abstract: An object of the present invention is to provide a niobium monoxide able to realize large capacitance in a miniature sized capacitor. The invention relates to a niobium monoxide having a porous structure comprising particles, characterized in that the niobium monoxide has a full-width at half maximum of an X-ray diffraction peak corresponding to a (111) plane or an X-ray diffraction peak corresponding to a (200) plane of 0.21° to 1.0°. The niobium monoxide has a large specific surface area and porosity, and is especially suitable for use in a capacitor.
    Type: Grant
    Filed: June 26, 2007
    Date of Patent: August 2, 2011
    Assignee: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Yoshihiro Yoneda, Shuji Ogura, Isamu Yashima
  • Patent number: 7985389
    Abstract: A method for producing pig iron by direct processing of ferrotitania sands, by the steps of: (a) mixing carbonaceous reductant, a fluxing agent, and a binder with titanium-containing materials selected from iron sands, metallic oxides, and/or iron ore concentrates, to form a mixture; (b) forming agglomerates from the mixture (c) introducing the agglomerates to a melting furnace; (d) melting the agglomerates at a temperature of from 1500 to 1760 C and forming hot metal with a slag thereon; (e) removing the slag; (f) tapping the hot metal; and (g) recovering the titanium and vanadium values.
    Type: Grant
    Filed: August 12, 2008
    Date of Patent: July 26, 2011
    Assignee: Cardero Resource Corporation
    Inventor: Glenn E. Hoffman
  • Patent number: 7858816
    Abstract: Tantalum compounds of Formula I hereof are disclosed, having utility as precursors for forming tantalum-containing films such as barrier layers. The tantalum compounds of Formula I may be deposited by CVD or ALD for forming semiconductor device structures including a dielectric layer, a barrier layer on the dielectric layer, and a copper metallization on the barrier layer, wherein the barrier layer includes a Ta-containing layer and sufficient carbon so that the Ta-containing layer is amorphous. According to one embodiment, the semiconductor device structure is fabricated by depositing the Ta-containing barrier layer, via CVD or ALD, from a precursor including the tantalum compound of Formula I hereof at a temperature below about 400° C. in a reducing or inert atmosphere, e.g., a gas or plasma optionally containing a reducing agent.
    Type: Grant
    Filed: May 30, 2010
    Date of Patent: December 28, 2010
    Assignee: Advanced Technology Materials, Inc.
    Inventors: Tianniu Chen, Chongying Xu, Jeffrey F. Roeder, Thomas H. Baum
  • Publication number: 20100226838
    Abstract: The present invention relates to a process for the removal of metal catalyst degradation products from a bleed stream of a catalytic chemical reaction process, wherein the catalyst is based on a metal selected from those in group VIII of the periodic table, chromium, copper, molybdenum, tungsten, rhenium, vanadium, titanium and zirconium, said process comprising treatment of the bleed stream with an alkali metal carbonate or ammonium carbonate source to form a solid complex or an aqueous solution of said solid complex, and removal of the solid complex or the aqueous solution of said solid complex from the bleed stream.
    Type: Application
    Filed: May 28, 2008
    Publication date: September 9, 2010
    Inventors: Anand Kumar Bachasingh, Arie Van Zon
  • Patent number: 7750173
    Abstract: Tantalum compounds of Formula I hereof are disclosed, having utility as precursors for forming tantalum-containing films such as barrier layers. The tantalum compounds of Formula I may be deposited by CVD or ALD for forming semiconductor device structures including a dielectric layer, a barrier layer on the dielectric layer, and a copper metallization on the barrier layer, wherein the barrier layer includes a Ta-containing layer and sufficient carbon so that the Ta-containing layer is amorphous. According to one embodiment, the semiconductor device structure is fabricated by depositing the Ta-containing barrier layer, via CVD or ALD, from a precursor including the tantalum compound of Formula I hereof at a temperature below about 400° C. in a reducing or inert atmosphere, e.g., a gas or plasma optionally containing a reducing agent.
    Type: Grant
    Filed: January 12, 2008
    Date of Patent: July 6, 2010
    Assignee: Advanced Technology Materials, Inc.
    Inventors: Tianniu Chen, Chongying Xu, Jeffrey F. Roeder, Thomas H. Baum
  • Publication number: 20100098606
    Abstract: A process is disclosed for separation and recovery of vanadium, molybdenum, iron, tungsten, cobalt and nickel from alumina-based materials, mattes, ores, manufacturing by-products and waste. These elements are oxidized. The oxides are reacted with gaseous HCl to form volatile chloride-bearing compounds that subsequently sublimate. The volatile compounds are condensed in a downward-stepped thermal gradient that allows collection of moderate to high purity compounds of individual elements with exception of a nickel-cobalt co-condensate. Nickel is separated from cobalt by precipitation of nickel chloride from concentrated HCl pressurized with gaseous HCl.
    Type: Application
    Filed: October 19, 2009
    Publication date: April 22, 2010
    Inventor: JOSEPH L. THOMAS
  • Patent number: 7655214
    Abstract: Valve metal suboxides having a primary suboxide phase and optionally a secondary suboxide phase, a valve metal phase, and/or at least one tertiary suboxide phase can be present in varying amounts. Also disclosed is anodes and capacitors containing the valve metal suboxides of the present invention. Also, a method to prepare a valve metal suboxide is further described which includes granulating one or more of the starting materials individually or together and/or granulating the final product.
    Type: Grant
    Filed: February 25, 2004
    Date of Patent: February 2, 2010
    Assignee: Cabot Corporation
    Inventors: David M. Reed, Sridhar Venigalla, Jeffrey A. Kerchner
  • Patent number: 7651674
    Abstract: A metal sulfide nanocrystal manufactured by a method of reacting a metal precursor and an alkyl thiol in a solvent, wherein the alkyl thiol reacts with the metal precursor to form the metal sulfide nanocrystals, wherein the alkyl thiol is present on the surface of the metal sulfide nanocrystal, wherein the alkyl thiol is bonded to the sulfur crystal lattice. A metal sulfide nanocrystal manufactured with a core-shell structure by a method of reacting a metal precursor and an alkyl thiol in a solvent to form a metal sulfide layer on the surface of a core, wherein the alkyl thiol is present on the surface of the metal sulfide nanocrystal, wherein the alkyl thiol is bonded to the sulfur crystal lattice. These metal sulfide nanocrystals can have a uniform particle size at the nanometer-scale level, selective and desired crystal structures, and various shapes.
    Type: Grant
    Filed: July 17, 2008
    Date of Patent: January 26, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Shin Ae Jun, Eun Joo Jang, Seong Jae Choi
  • Patent number: 7648689
    Abstract: The invention is to provide a process for industrially advantageously producing InP fine particles having a nano-meter size efficiently in a short period of time and an InP fine particle dispersion, and there are provided a process for the production of InP fine particles by reacting an In raw material containing two or more In compounds with a P raw material containing at least one P compound in a solvent wherein the process uses, as said two or more In compounds, at least one first In compound having a group that reacts with a functional group of P compound having a P atom adjacent to an In atom to be eliminated with the functional group in the formation of an In-P bond and at least one second In compound having a lower electron density of In atom in the compound than said first In compound and Lewis base solvent as said solvent, and InP fine particles obtained by the process.
    Type: Grant
    Filed: March 10, 2006
    Date of Patent: January 19, 2010
    Assignee: Hoya Corporation
    Inventor: Shuzo Tokumitsu
  • Patent number: 7625831
    Abstract: Anisotropically shaped ceramic particles are represented by the general formula {(K1?x?yNaxLiy)4(Nb1?zTaz)6O17+aMeOb} (where Me is at least one element selected from the group consisting of antimony, copper, manganese, vanadium, silicon, titanium, and tungsten; and b is a positive number determined by the valence of Me), where x, y, z, and a satisfy 0?x?0.5, 0?y?0.3, 0?z?0.3, and 0.001?a?0.1, respectively. The anisotropically shaped ceramic particles have a plate-like shape. The average particle size is 1 to 100 ?m, and the ratio D/t of the maximum diameter D of a main surface to the thickness t in a direction perpendicular to the main surface is 2 or more, preferably 5 or more. Thus, anisotropically shaped ceramic particles suitable as a reactive template for preparing a crystal-oriented alkali metal niobate-based ceramic can be produced at relatively low production costs without the need for a complicated production process.
    Type: Grant
    Filed: July 10, 2008
    Date of Patent: December 1, 2009
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Masahiko Kimura, Kosuke Shiratsuyu
  • Patent number: 7604784
    Abstract: A process is disclosed for separation and recovery of vanadium, molybdenum, iron, tungsten, cobalt and nickel from alumina-based materials, mattes, ores, manufacturing by-products and waste. These elements are oxidized. The oxides are reacted with gaseous HCl to form volatile chloride-bearing compounds that subsequently sublimate. The volatile compounds are condensed in a downward-stepped thermal gradient that allows collection of moderate to high purity compounds of individual elements with exception of a nickel-cobalt co-condensate. Nickel is separated from cobalt by precipitation of nickel chloride from concentrated HCl pressurized with gaseous HCl.
    Type: Grant
    Filed: June 24, 2005
    Date of Patent: October 20, 2009
    Assignee: Metals Recovery Technology Inc.
    Inventor: Joseph L. Thomas
  • Patent number: 7585486
    Abstract: The present invention relates to high-purity niobium monoxide powder (NbO) produced by a process of combining a mixture of higher niobium oxides and niobium metal powder or granules; heating and reacting the compacted mixture under controlled atmosphere to achieve temperature greater than about 1945° C., at which temperature the NbO is liquid; solidifying the liquid NbO to form a body of material; and fragmenting the body to form NbO particles suitable for application as capacitor anodes. The NbO product is unusually pure in composition and crystallography, and can be used for capacitors and for other electronic applications. The method of production of the NbO is robust, does not require high-purity feedstock, and can reclaim value from waste streams associated with the processing of NbO electronic components. The method of production also can be used to make high-purity NbO2 and mixtures of niobium metal/niobium monoxide and niobium monoxide/niobium dioxide.
    Type: Grant
    Filed: May 24, 2007
    Date of Patent: September 8, 2009
    Assignee: Reading Alloys, Inc.
    Inventors: Charles A. Motchenbacher, James W. Robison, Brian J. Higgins, Thomas J. Fonville
  • Patent number: 7578457
    Abstract: Grinding media, including shaped media such as spheres or rods ranging in size from about 0.5 micron to 100 mm in diameter, are formed from a multi-carbide material consisting essentially of two or more carbide-forming elements and carbon, with or without carbide-forming elements in their free elemental state. The media have extremely high mass density, extreme hardness, and extreme mechanical toughness.
    Type: Grant
    Filed: January 14, 2005
    Date of Patent: August 25, 2009
    Assignee: Primet Precision Materials, Inc.
    Inventor: Robert Dobbs
  • Patent number: 7557028
    Abstract: Methods for producing nanostructures, particularly Group III-V semiconductor nanostructures, are provided. The methods include use of novel Group III and/or Group V precursors, novel surfactants, oxide acceptors, high temperature, and/or stable co-products. Related compositions are also described. Methods and compositions for producing Group III inorganic compounds that can be used as precursors for nanostructure synthesis are provided. Methods for increasing the yield of nanostructures from a synthesis reaction by removal of a vaporous by-product are also described.
    Type: Grant
    Filed: July 8, 2005
    Date of Patent: July 7, 2009
    Assignee: Nanosys, Inc.
    Inventors: Erik C. Scher, Mihai A. Buretea, William P. Freeman, Joel Gamoras, Baixin Qian, Jeffery A. Whiteford
  • Publication number: 20090047198
    Abstract: A process is disclosed for separation and recovery of vanadium, molybdenum, iron, tungsten, cobalt and nickel from alumina-based materials, mattes, ores, manufacturing by-products and waste. These elements are oxidized. The oxides are reacted with gaseous HCl to form volatile chloride-bearing compounds that subsequently sublimate. The volatile compounds are condensed in a downward-stepped thermal gradient that allows collection of moderate to high purity compounds of individual elements with exception of a nickel-cobalt co-condensate. Nickel is separated from cobalt by precipitation of nickel chloride from concentrated HCl pressurized with gaseous HCl.
    Type: Application
    Filed: June 24, 2005
    Publication date: February 19, 2009
    Inventor: Joseph L. Thomas
  • Publication number: 20090035661
    Abstract: The present invention relates to a method for preparing a lithium vanadium phosphate material comprising forming a aqueous slurry (in which some of the components are at least partially dissolved) comprising a polymeric material, an acidic phosphate anion source, a lithium compound, V2O5 and a source of carbon; wet blending said slurry, spray drying said slurry to form a precursor composition; and heating said precursor composition to produce a lithium vanadium phosphate.
    Type: Application
    Filed: August 1, 2007
    Publication date: February 5, 2009
    Inventors: Jeffrey Swoyer, M. Yazid Saidi, Titus Faulkner
  • Publication number: 20090032952
    Abstract: Tantalum compounds of Formula I hereof are disclosed, having utility as precursors for forming tantalum-containing films such as barrier layers. The tantalum compounds of Formula I may be deposited by CVD or ALD for forming semiconductor device structures including a dielectric layer, a barrier layer on the dielectric layer, and a copper metallization on the barrier layer, wherein the barrier layer includes a Ta-containing layer and sufficient carbon so that the Ta-containing layer is amorphous. According to one embodiment, the semiconductor device structure is fabricated by depositing the Ta-containing barrier layer, via CVD or ALD, from a precursor including the tantalum compound of Formula I hereof at a temperature below about 400° C. in a reducing or inert atmosphere, e.g., a gas or plasma optionally containing a reducing agent.
    Type: Application
    Filed: January 12, 2008
    Publication date: February 5, 2009
    Applicant: ADVANCED TECHNOLOGY MATERIALS, INC.
    Inventors: Tianniu Chen, Chongying Xu, Jeffrey F. Roeder, Thomas H. Baum
  • Patent number: 7455825
    Abstract: Disclosed herein is a method for manufacturing metal sulfide nanocrystals using a thiol compound as a sulfur precursor. The method comprises reacting the thiol compound and a metal precursor in a solvent to grow metal sulfide crystals to the nanometer-scale level. Further disclosed is a method for manufacturing metal sulfide nanocrystals with a core-shell structure by reacting a metal precursor and a thiol compound in a solvent to grow a metal sulfide layer on the surface of a core. The metal sulfide nanocrystals prepared by these methods can have a uniform particle size at the nanometer-scale level, selective and desired crystal structures, and various shapes.
    Type: Grant
    Filed: October 19, 2004
    Date of Patent: November 25, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Shin Ae Jun, Eun Joo Jang, Seong Jae Choi
  • Patent number: 7445763
    Abstract: A coating powder based on chemically modified titanium suboxides, for use in various coating techniques. Coatings produced from this powder are characterized by high electroconductivity, good solid lubricating properties and resistance to wear. For these reasons, there are numerous possibilities of use of components which were coated by suitable processes with this powder, especially as functional layers for fuel cells in electrochemical installations, in the new car industry, in mechanical engineering and in other economic activities. The coating powder based on titanium suboxides having a defined defect structure is characterized in that it is modified by at least one metallic alloying element and described by general formula: Tin-2Me2O2n-1.
    Type: Grant
    Filed: March 4, 2002
    Date of Patent: November 4, 2008
    Assignee: Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung E. V.
    Inventors: Lutz-Michael Berger, Sven Thiele, Manfred Nebelung