Group Viib Metal (mn, Tc, Or Re) Patents (Class 423/49)
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Patent number: 11894531Abstract: A method for recovering lithium battery slurry, the method comprising: pretreating lithium battery slurry, and then subjecting the pretreated lithium battery slurry to centrifugal spray drying to separate a solid phase and a solvent. A device for the recovery of lithium battery slurry is a centrifugal spray drying system, and comprises a spray chamber (100), a cyclone separator (200), a condenser (400), a condensate storage tank (500), and a rectification tower (600); the system improves upon original centrifugal spray drying devices, and is designed to combine the processes of centrifugal spray drying and NMP condensation recovery, such that NMP can be directly recovered after separation of positive electrode material and the NMP.Type: GrantFiled: June 6, 2022Date of Patent: February 6, 2024Assignees: Guangdong Brunp Recycling Technology Co., Ltd., Hunan Brunp Recycling Technology Co., Ltd., Hunan Brunp EV Recycling Co., Ltd.Inventors: Peichao Ning, Changdong Li, You Zhou, Qiang Li, Dingshan Ruan, Song Chen
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Patent number: 10665842Abstract: Provided herein is a separator used for an electrochemical device such as a lithium-ion battery. The separator disclosed herein comprises a porous base material, and a protective porous layer coated on one or both surfaces of the porous base material disclosed herein, wherein the protective porous layer comprises an organic binder and an inorganic filler, and wherein the inorganic filler comprises a whisker-type material selected from the group consisting of Al2O3, SiO2, TiO2, ZrO2, BaOx, ZnO, CaCO3, TiN, AlN, MTiO3, K2O·nTiO2, Na2O·mTiO2, and combinations thereof, wherein x is 1 or 2; M is Ba, Sr or Ca; n is 1, 2, 4, 6 or 8; and m is 3 or 6. Also provided herein is a lithium-ion battery including the separator disclosed herein. The separator disclosed herein is excellent in terms of safety, ion permeability, and cycle characteristics.Type: GrantFiled: May 30, 2019Date of Patent: May 26, 2020Assignee: GRST INTERNATIONAL LIMITEDInventors: Sing Ming Tony Wong, Sing Hung Eric Wong, Peihua Shen, Yuen Hung, Kam Piu Ho, Ranshi Wang
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Patent number: 10361414Abstract: Provided herein is a separator used for an electrochemical device such as a lithium-ion battery. The separator disclosed herein comprises a porous base material, and a protective porous layer coated on one or both surfaces of the porous base material disclosed herein, wherein the protective porous layer comprises an organic binder and an inorganic filler, and wherein the inorganic filler comprises a whisker-type material selected from the group consisting of Al2O3, SiO2, TiO2, ZrO2, BaOx, ZnO, CaCO3, TiN, AlN, MTiO3, K2O.nTiO2, Na2O.mTiO2, and combinations thereof, wherein x is 1 or 2; M is Ba, Sr or Ca; n is 1, 2, 4, 6 or 8; and m is 3 or 6. Also provided herein is a lithium-ion battery including the separator disclosed herein. The separator disclosed herein is excellent in terms of safety, ion permeability, and cycle characteristics.Type: GrantFiled: May 24, 2017Date of Patent: July 23, 2019Assignee: GRST International LimitedInventors: Sing Ming Tony Wong, Sing Hung Eric Wong, Peihua Shen, Yuen Hung, Kam Piu Ho, Ranshi Wang
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Patent number: 9624561Abstract: A method for allowing production of high-purity perrhenic acid from crude rhenium sulfide by applying a dry process is provided. A method for producing an aqueous solution of perrhenic acid includes 1) a step for roasting rhenium sulfide under an oxygen-containing gas to collect gasified rhenium oxide; 2) a step for cooling and solidifying the gasified rhenium oxide while keeping sulfur oxide entrained in the gasified rhenium oxide a gaseous state, and subsequently performing solid-gas separation, thereby improving purity of rhenium oxide; and 3) a step for dissolving the solidified rhenium oxide into water, or heating and gasifying the solidified rhenium oxide and then dissolving the gasified rhenium oxide into water, to obtain the aqueous solution of perrhenic acid.Type: GrantFiled: May 24, 2013Date of Patent: April 18, 2017Assignee: PAN PACIFIC COPPER CO., LTD.Inventors: Ikunobu Sumida, Yuji Kawano, Makoto Hamamoto
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Patent number: 9406935Abstract: A main object of the present invention is to provide an anode active material capable of increasing energy density at the same time increasing battery safety, and a metal ion battery prepared with the anode active material. The present invention is an anode active material including an element that belongs to alunite group capable to insert and remove an ion(s) of at least one metal element selected from the group consisting of alkali metal elements and alkaline-earth metal elements, and a metal ion battery having a cathode, an anode, and an electrolyte filled between the cathode and the anode, the electrolyte conducting a metal ion(s), wherein the anode active material is contained in the anode.Type: GrantFiled: October 9, 2012Date of Patent: August 2, 2016Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shigeki Sato, Masafumi Nose, Hideki Nakayama
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Patent number: 9365912Abstract: A method for producing high-purity manganese sulfate monohydrate from a low-grade composition includes acquiring a primary leached manganese solution by adding sulfuric acid and a reductant to a low-grade manganese-containing composition and leaching manganese therefrom; acquiring a secondary leached manganese solution from which primary impurities have been eliminated by adding calcium hydroxide to the primary leached manganese solution; acquiring a tertiary leached manganese solution from which secondary impurities have been eliminated by adding sulfides to the secondary leached manganese solution; acquiring manganese oxide from precipitating manganese by using sodium hydroxide in the tertiary leached manganese solution so as to control the pH thereof; adding sulfuric acid to the manganese oxide and redissolving; and drying the redissolved manganese oxide and acquiring high-purity manganese sulfate monohydrate.Type: GrantFiled: December 28, 2012Date of Patent: June 14, 2016Assignee: INDUSTRY FOUNDATION OF CHONNAM NATIONAL UNIVERSITYInventors: Myong Jun Kim, Tam Tran
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Patent number: 9249479Abstract: Provided are a method for producing sodium tungstate by supplying an oxidant made of sodium nitrate or sodium nitrite to bring a tungsten containing material and the oxidant into contact with each other in an atmosphere containing oxygen to thereby continuously produce a reaction product; a method for collecting tungsten using the method; and an apparatus for producing sodium tungstate. Also provided are a method for producing a sodium tungstate aqueous solution in which a reductant is introduced into a melt containing the above-described reaction product which is then dissolved in water; and a method for collecting tungsten using the method.Type: GrantFiled: December 23, 2013Date of Patent: February 2, 2016Assignees: A.L.M.T. Corp., SUMITOMO ELECTRIC HARDMETAL CORP., Sumitomo Electric Industries, Ltd.Inventors: Yoshiharu Yamamoto, Kazuo Sasaya, Takayuki Fudo, Akira Nakano, Syunsuke Yamanaka, Takahisa Iguchi, Fumiatsu Sato, Akihiko Ikegaya
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Publication number: 20150114181Abstract: A method for allowing production of high-purity perrhenic acid from crude rhenium sulfide by applying a dry process is provided. A method for producing an aqueous solution of perrhenic acid includes 1) a step for roasting rhenium sulfide under an oxygen-containing gas to collect gasified rhenium oxide; 2) a step for cooling and solidifying the gasified rhenium oxide while keeping sulfur oxide entrained in the gasified rhenium oxide a gaseous state, and subsequently performing solid-gas separation, thereby improving purity of rhenium oxide; and 3) a step for dissolving the solidified rhenium oxide into water, or heating and gasifying the solidified rhenium oxide and then dissolving the gasified rhenium oxide into water, to obtain the aqueous solution of perrhenic acid.Type: ApplicationFiled: May 24, 2013Publication date: April 30, 2015Applicant: PAN PACIFIC COPPER CO., LTD.Inventors: Ikunobu Sumida, Yuji Kawano, Makoto Hamamoto
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Patent number: 9018119Abstract: A method for preparing manganese sulfate monohydrate by desulfurizing fume with middle-low grade manganese dioxide ore, which includes: preparing a slurry by using middle-low grade manganese dioxide ore powder, putting sulfur-containing fume in an absorbing device and controlling gas velocity and gas-liquid ratio, and then adding manganese dioxide slurry and controlling the slurry to backwards flow relative to the sulfur-containing fume, discharging the desulfurized fume from the absorbing device, pressure-filtering and separating the slurry discharged from the absorbing device, recycling the mother liquor to the absorbing device, and continuing the recycling operation until the manganese sulfate in the mother liquor is >=200 g/l, the obtained filter cake at 60-70° C., adjusting pH value of the clear solution obtained to 2-4, adding manganese sulfide under agitation at 25-95° C.Type: GrantFiled: July 20, 2010Date of Patent: April 28, 2015Assignee: Guizhou Redstar Developing Co., Ltd.Inventors: Zhiguang Jiang, Dong Hua, Fei Wu
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Publication number: 20150107414Abstract: A method allowing production of high-purity perrhenic acid from rhenium sulfide by applying pyrometallurgical process is provided.Type: ApplicationFiled: May 24, 2013Publication date: April 23, 2015Applicant: PAN PACIFIC COPPER CO., LTD.Inventors: Ikunobu Sumida, Yuji Kawano, Makoto Hamamoto
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Publication number: 20150087837Abstract: The present invention provides techniques that selectively recover Re from reductive amination catalysts. In particular, the present invention allows Re to be recovered selectively relative to Ni, Co, and/or Cu, and particularly Ni, that are often present on reductive amination catalysts. The present invention uses a combination of oxidation and extraction techniques to selectively recover Re relative to Ni, Co, and/or Cu. Advantageously, the recovery is selective even when using aqueous solutions for extraction.Type: ApplicationFiled: March 11, 2013Publication date: March 26, 2015Inventors: Stephen W. King, William C. Hoffman
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Patent number: 8968698Abstract: Provided herein are processes for recovering molybdenum and/or other value metals (e.g., uranium) present in aqueous solutions from a large range of concentrations: from ppm to grams per liter via a solvent extraction process by extracting the molybdenum and/or other value metal from the aqueous solution by contacting it with an organic phase solution containing a phosphinic acid, stripping the molybdenum and/or other value metal from the organic phase solution by contacting it with an aqueous phase strip solution containing an inorganic compound and having a ?1.0 M concentration of free ammonia, and recovering the molybdenum and/or other value metal by separating it from the aqueous phase strip solution. When the molybdenum and/or other value metal are present only in low concentration, the processes can include an organic phase recycle step and/or an aqueous phase strip recycle step in order to concentrate the metal prior to recover.Type: GrantFiled: November 7, 2012Date of Patent: March 3, 2015Assignee: Cytec Technology Corp.Inventors: Troy Allan Bednarski, Violina Antoneta Cocalia, Matthew Dean Soderstrom, Eduardo Alberto Kamenetzky, Andrew Michael Cameron, Douglas Harris
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Patent number: 8956583Abstract: The present invention aims at separating and removing arsenic in a stable form from raw material containing rhenium and arsenic, and reducing a circulation amount of arsenic in a rhenium purification process to obtain rhenium with low-content arsenic.Type: GrantFiled: February 15, 2013Date of Patent: February 17, 2015Assignee: Sumitomo Metal Mining Co., Ltd.Inventors: Satoshi Asano, Naoki Kubota, Kazunori Takeda, Shintarou Komori
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Patent number: 8956582Abstract: There is provided a hydrometallurgical process of recovering rhenium values from mixtures thereof with other metal values in which the rhenium values constitute a minority amount, for example super-alloys, which comprises subjecting the mixture to strongly oxidizing acid conditions, preferably an aqueous mixture of hydrochloric acid and nitric acid, so as to form perrhenate species of at least the major proportion of the rhenium values in the mixture, dissolving the perrhenate species and other soluble metal species in aqueous solution, removing insoluble metal species from the aqueous solution, and isolating the rhenium species from the solution.Type: GrantFiled: March 11, 2010Date of Patent: February 17, 2015Assignee: Maritime House Metals Inc.Inventors: Cesare G. Ferron, Larry E. Seeley
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Patent number: 8920773Abstract: 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: GrantFiled: December 17, 2012Date of Patent: December 30, 2014Assignee: Freeport Minerals CorporationInventors: Joanna M. Robertson, Thomas R. Bolles, Wayne W. Hazen, Lawrence D. May, Jay C. Smith, David R. Baughman
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Patent number: 8911611Abstract: A process for obtaining electrolytic manganese from the treated sludge of the exhaust gases of ferroalloy production furnaces for any other industrial waste having magnesium in general, with a significant manganese content, by means of a process consisting of the following phases: sulphation, lixiviation, purification, conditioning and electrolysis, and whereby a manganese sulphate liquor is obtained that is suitable for the already known electrolysis process, which allows obtaining electrolytic manganese.Type: GrantFiled: May 25, 2004Date of Patent: December 16, 2014Assignee: Ferroatlantica, S.L.Inventors: Juan Carlos Sanchez Recio, José Sancho Martinez
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Patent number: 8911696Abstract: High purity MnO and zinc oxide may be efficiently recovered from alkaline and/or carbon zinc batteries using a process involving the treatment of the crushed batteries with an alkali hydroxide to produce insoluble manganese oxides and an alkali zincate solution. Zinc oxide is obtained by reacting the zinc solution with carbon dioxide or an acid such as a mineral acid and furnacing. The manganese oxides are converted to MnO by furnacing under an inert atmosphere.Type: GrantFiled: April 9, 2014Date of Patent: December 16, 2014Assignee: Retriev Technologies IncorporatedInventors: W. Novis Smith, James Applegate
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Patent number: 8906328Abstract: A method for the heap leaching of manganese-containing ores, the method characterized by the steps of: (i) beneficiating the manganese-containing ore and separating into a coarse fraction and a fine ore fraction; (ii) combining the fine ore fraction with a sulfide ore material to produce a combined ore fraction; (iii) stacking the combined ore fraction to form at least one heap; and (iv) applying a lixiviant to the heap to produce a pregnant leach solution (PLS) containing dissolved manganese values, wherein the lixiviant is added to the or each heap in the presence of soluble iron.Type: GrantFiled: November 8, 2011Date of Patent: December 9, 2014Assignee: Mesa Minerals LimitedInventor: Christopher Brett Ward
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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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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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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: 8753591Abstract: Molybdic oxide is recovered from molybdenite by a multistep process in which (A) the molybdenite is converted to soluble and insoluble molybdic oxide by pressure oxidation, (B) the insoluble molybdic oxide is converted to soluble molybdic oxide by alkaline digestion and then combined with the soluble molybdic oxide, and (C) the molybdenum values of the combined streams are extracted into an organic phase using a nonprimary amine. The extracted molybdenum values are recovered from the organic phase using aqueous ammonia to form ammonium dimolybdate (ADM) which is recovered as refined crystals from a two-step calcination process.Type: GrantFiled: February 28, 2013Date of Patent: June 17, 2014Assignee: Kennecott Utah Copper LLCInventors: Mike Rockandel, Claus Stoiber, Robert E. Crossman
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Publication number: 20130323142Abstract: Method of recovering active material from waste battery materials comprises: (1) an electrode material mixture recovery step of separating an electrode from the waste battery material to recover an electrode material mixture including the active material, a conductive material, and a binder from the electrode; (2) an activation agent mixing step of mixing an activation agent including one or more alkali metal compounds with the recovered electrode material mixture; (3) an activation step of heating the obtained mixture to a retention temperature not less than a melting start temperature of the activation agent to activate the active material included in the mixture; and (4) an active material recovery step of recovering the activated active material from a mixture obtained as a result of cooling after the activation step.Type: ApplicationFiled: February 13, 2012Publication date: December 5, 2013Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Satoshi Shimano, Shingo Matsumoto
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Publication number: 20130312254Abstract: The present invention relates to a method for manufacturing a valuable-metal sulfuric-acid solution from a waste battery, and to a method for manufacturing a positive electrode active material. The method for manufacturing the valuable-metal sulfuric-acid solution includes: a step of obtaining valuable-metal powder containing lithium, nickel, cobalt, and manganese from waste batteries; a step of acid-leaching the valuable-metal powder under a reducing atmosphere in order to obtain a leaching solution; and a step of separating the lithium from the leaching solution so as to obtain a sulfuric-acid solution containing the nickel, cobalt, and manganese.Type: ApplicationFiled: August 18, 2011Publication date: November 28, 2013Applicant: KOREA INSTITUTE OF GEOSCIENCE AND MINERAL RESOURCESInventors: Soo Kyung Kim, Jin Gu Kang, Dong Hyo Yang, Jeong Soo Sohn, Shun Myung Shin
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Patent number: 8591842Abstract: A molecularly imprinted polymer ion exchange resin for selectively removing one or more inorganic ions in a liquid medium is disclosed and described. The exchange resin can include a bead having a porous structure and comprising a cross-linked molecularly imprinted polymer having molecular sized cavities adapted to selectively receive and bind a specific inorganic ion in a liquid medium. A process for preparing a molecularly imprinted polymer ion exchange resin can include (a) polymerizing a polmerizable mixture in the presence of an inorganic ion imprinting complex to form a bead, said inorganic ion imprinting complex including a ligand and an inorganic ion; and (b) removing the inorganic ions from the bead to form the molecularly imprinted polymer ion exchange resin, the bead having a porous structure and comprising a cross-linked molecularly imprinted polymer having molecular sized cavities adapted to selectively receive and bind a specific inorganic ion in an liquid medium.Type: GrantFiled: September 27, 2011Date of Patent: November 26, 2013Assignee: The Johns Hopkins UniversityInventors: George M. Murray, Kelly A. Van Houten, Glen E. Southard
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Publication number: 20130309151Abstract: A method for the heap leaching of manganese-containing ores, the method characterised by the steps of: (i) beneficiating the manganese-containing ore and separating into a coarse fraction and a fine ore fraction; (ii) combining the fine ore fraction with a sulfide ore material to produce a combined ore fraction; (iii) stacking the combined ore fraction to form at least one heap; and (iv) applying a lixiviant to the heap to produce a pregnant leach solution (PLS) containing dissolved manganese values, wherein the lixiviant is added to the or each heap in the presence of soluble iron.Type: ApplicationFiled: November 8, 2011Publication date: November 21, 2013Applicant: MESA MINERALS LIMITEDInventor: Christopher Brett Ward
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Publication number: 20130209336Abstract: This invention relates to a method for the selective recovery of manganese and zinc from brines that includes the steps of contacting a brine with an ionic liquid in order to selectively extract manganese and zinc from the brine into the ionic liquid; and treating the ionic liquid containing extracted manganese and zinc with an aqueous solution to selectively precipitate manganese, producing a manganese depleted, zinc rich ionic liquid. The method can further include the steps of treating the manganese depleted, zinc rich ionic liquid with an aqueous solution to selectively precipitate zinc.Type: ApplicationFiled: March 14, 2013Publication date: August 15, 2013Applicant: SIMBOL INC.Inventor: SIMBOL INC.
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Patent number: 8491700Abstract: Various embodiments provide new methods of rhenium recovery. The methods can include subjecting a metal-bearing solution to an activated carbon bed, and adsorbing rhenium onto the activated carbon. The methods can also include heating a basic aqueous elution solution and eluting the rhenium from the activated carbon with the heated elution solution. The methods can also incorporate an ion exchange as a rhenium recovery apparatus.Type: GrantFiled: December 21, 2012Date of Patent: July 23, 2013Assignee: Freeport-McMoran CorporationInventors: Brett T. Waterman, Steve Nels Dixon, Theresa Linne Morelli, George Owusu, Stefka Todorova Ormsby
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Patent number: 8454915Abstract: Calcium (Ca), manganese (Mn) and magnesium (Mg) carbonate plus lead (Pb) and zinc (Zn) sulphide minerals in a permeable host, crushed ore, concentrates or as mine discharge tailing are selectively solution mined (in-situ or ex-situ) with a selected acid e.g. acetic acid to extract Ca, Mn, and Mg followed by multivalent oxidizing salts e.g. ferric salts to extract Pb and Zn sequentially. For in-situ leaching, an inter relationship has been identified between pressure, temperature, target depth and leachate concentration such that carbonate leaching is performed in a manner to prevent carbon dioxide gas (CO2) discharge thereby plugging host rock permeability avenues to preclude further leaching. This requires controlling the rate of acetic acid leaching to be in step with availability of solution to dissolve the resulting discharged CO2. Sulphide leaching is subsequently conducted on the carbonate-depleted host.Type: GrantFiled: August 17, 2010Date of Patent: June 4, 2013Assignee: Yava Technologies Inc.Inventors: Robert A. Geisler, Madhav P. Dahal
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Patent number: 8440153Abstract: A method for preparing manganese sulfate and zinc sulfate from waste batteries containing manganese and zinc, and more particularly to a method for preparing manganese sulfate and zinc sulfate from waste batteries containing manganese and zinc. Zinc powder and activated carbon are added to a leached solution obtained from a continuous leaching process so as to remove heavy metals and organic materials from the leached solution, and then the leached solution is spray-dried to simultaneously obtain manganese sulfate and zinc sulfate at high-purity by a simple process without generating wastewater. An environmentally friendly waste battery recycling process is thereby provided, because it is not required to use additional chemical substances for neutralization titration or impurity removal in recovering manganese sulfate and zinc sulfate by leaching a waste battery powder.Type: GrantFiled: January 25, 2010Date of Patent: May 14, 2013Assignees: Korea Institute of Geoscience and Mineral, Econics CorporationInventors: Shun Myung Shin, Jin Gu Kang, Jeong Soo Sohn, Hyun Gun Kim, Moon Ho Kim
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Patent number: 8415000Abstract: 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: GrantFiled: October 28, 2011Date of Patent: April 9, 2013Assignee: Inpria CorporationInventors: Jason K. Stowers, Alan J. Telecky, Douglas A. Keszler, Andrew Grenville
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Publication number: 20130061719Abstract: A process for producing metal compounds directly from underground mineral deposits including steps of forming a borehole at a site into a mineral deposit containing metal compounds, inserting a slurry-forming device having a nozzle into the borehole adapted to direct pressurized water through the nozzle into the mineral deposit, supplying pressured water through the nozzle into the mineral deposit forming a mineral slurry containing metal compounds, extracting the mineral slurry containing metal compounds through the borehole, leaching the mineral slurry converting the metal compounds to a soluble form in a leach solution, and removing metals and metal compounds by treating the leach solution with an extraction treatment removing the metal products. Steps of leaching the mineral slurry and removing metal products are performed at a location remote from the borehole site. In one alternative, the step of removing metal products from mineral slurry is accomplished by pyrometallurgical processes.Type: ApplicationFiled: November 12, 2012Publication date: March 14, 2013Applicant: COOPERATIVE MINERAL RESOURCES, LLCInventor: Cooperative Mineral Resources, LLC
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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: 8366917Abstract: A method of recovering minerals from hydrocarbonaceous materials can include forming a constructed permeability control infrastructure. This constructed infrastructure defines a substantially encapsulated volume. A comminuted hydrocarbonaceous material can be introduced into the control infrastructure to form a permeable body of hydrocarbonaceous material. The permeable body can be contacted with an agent sufficient to remove minerals therefrom. The agent is typically a solution containing a solvent, leachant, chelating agent and the like via which minerals can be removed having value, toxic minerals, radioactive minerals and the like.Type: GrantFiled: February 9, 2010Date of Patent: February 5, 2013Assignee: Red Leaf Resources, IncInventors: Todd Dana, James W. Patten
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Patent number: 8361192Abstract: Various embodiments provide new methods of rhenium recovery. The methods can include subjecting a metal-bearing solution to an activated carbon bed, and adsorbing rhenium onto the activated carbon. The methods can also include heating a basic aqueous elution solution and eluting the rhenium from the activated carbon with the heated elution solution.Type: GrantFiled: August 17, 2012Date of Patent: January 29, 2013Assignee: Freeport-McMoran CorporationInventors: Brett T. Waterman, Steve Nels Dixon, Theresa Linne Morelli, George Owusu, Stefka Todorova Ormsby
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Patent number: 8343446Abstract: The oxine ligands 5-chloro-8-hydroxyquiniline and 5-sulfoxyl-8-hydroxyquinoline are covalently bound, using, for example, the Mannich reaction, to a silica gel polyamine composite made from a silanized amorphous silica xerogel and polyallylamine. The resulting modified composites, termed CB-1 (X?Cl) and SB-1 (X?SO3H), respectively, show a clear selectivity for trivalent over divalent ions and selectivity for gallium over aluminum. The compounds of the invention can be applied for the sequestration of metals, such as heavy metals, from contaminated mine tailing leachates.Type: GrantFiled: October 13, 2011Date of Patent: January 1, 2013Assignee: The University of MontanaInventors: Edward Rosenberg, Paul Miranda, Yuen Onn Wong
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Patent number: 8329124Abstract: Solvent extraction compositions having an orthohydroxyaryloxime extractant, an anti-degradation agent, and a water-immiscible organic solvent, processes for extracting a metal from an aqueous acidic solution using same, and methods of reducing degradation of such compositions are provided herein.Type: GrantFiled: October 8, 2009Date of Patent: December 11, 2012Assignee: Cytec Technology Corp.Inventors: John Campbell, Susan Owens, Matthew Soderstrom, Troy Bednarski, Gustavo Marin
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Publication number: 20120304827Abstract: Various embodiments provide new methods of rhenium recovery. The methods can include subjecting a metal-bearing solution to an activated carbon bed, and adsorbing rhenium onto the activated carbon. The methods can also include heating a basic aqueous elution solution and eluting the rhenium from the activated carbon with the heated elution solution.Type: ApplicationFiled: August 17, 2012Publication date: December 6, 2012Applicant: FREEPORT-MCMORAN CORPORATIONInventors: Brett T. Waterman, Steve Nels Dixon, Theresa Linne Morelli, George Owusu, Stefka Todorova Ormsby
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Patent number: 8323481Abstract: A method of sequestering carbon dioxide emissions during recovery of hydrocarbons from hydrocarbonaceous materials can include forming a constructed permeability control infrastructure. This constructed infrastructure defines a substantially encapsulated volume. A comminuted hydrocarbonaceous material can be introduced into the control infrastructure to form a permeable body of hydrocarbonaceous material. The permeable body can be heated sufficient to remove hydrocarbons therefrom. During heating, the hydrocarbonaceous material is substantially stationary as the constructed infrastructure is a fixed structure. Additionally, during heating, any carbon dioxide that is produced can be sequestered. Removed hydrocarbons can be collected for further processing, use in the process, and/or use as recovered.Type: GrantFiled: February 5, 2010Date of Patent: December 4, 2012Assignee: Red Leaf Resources, Inc.Inventors: Todd Dana, James W. Patten
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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: 20120189514Abstract: The invention covers the combination of utilizing the selectivity of an adsorbent to remove species from a liquid containing mixtures of ions and then subjecting the loaded resin to a chromatographic displacement utilizing the most selectively adsorbed species to displace the undesired co-adsorbing impurities. The technique can be used even when the most selectively adsorbed species is present as a minor constituent in the feed solution.Type: ApplicationFiled: December 23, 2011Publication date: July 26, 2012Inventor: Gordon Rossiter
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Publication number: 20120189513Abstract: The invention covers the combination of utilizing the selectivity of an adsorbent to remove species from a liquid containing mixtures of ions and then subjecting the loaded resin to a chromatographic displacement utilizing the most selectively adsorbed species to displace the undesired co-adsorbing impurities. The technique can be used even when the most selectively adsorbed species is present as a minor constituent in the feed solution.Type: ApplicationFiled: January 20, 2011Publication date: July 26, 2012Inventor: Gordon Rossiter
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Publication number: 20120177551Abstract: Calcium (Ca), manganese (Mn) and magnesium (Mg) carbonate plus lead (Pb) and zinc (Zn) sulphide minerals in a permeable host, crushed ore, concentrates or as mine discharge tailing are selectively solution mined (in-situ or ex-situ) with a selected acid e.g. acetic acid to extract Ca, Mn, and Mg followed by multivalent oxidizing salts e.g. ferric salts to extract Pb and Zn sequentially. For in-situ leaching, an inter relationship has been identified between pressure, temperature, target depth and leachate concentration such that carbonate leaching is performed in a manner to prevent carbon dioxide gas (CO2) discharge thereby plugging host rock permeability avenues to preclude further leaching. This requires controlling the rate of acetic acid leaching to be in step with availability of solution to dissolve the resulting discharged CO2. Sulphide leaching is subsequently conducted on the carbonate-depleted host.Type: ApplicationFiled: August 17, 2010Publication date: July 12, 2012Applicant: YAVA TECHNOLOGIES INC.Inventors: Robert A. Geisler, Madhav P. Dahal
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Patent number: 8211390Abstract: A method of isolating a radioisotope according to example embodiments may include vaporizing a source compound containing a first isotope and a second isotope of an element, wherein the second isotope may have at least one of therapeutic and diagnostic properties when used as a radiopharmaceutical. The vaporized source compound may be ionized to form charged particles of the first and second isotopes. The charged particles may be separated to isolate the particles of the second isotope. The isolated charged particles of the second isotope may be collected with an oppositely-charged collector. Accordingly, the isolated second isotope may be used to produce therapeutic and/or diagnostic radiopharmaceuticals having higher specific activity.Type: GrantFiled: February 26, 2010Date of Patent: July 3, 2012Assignee: Advanced Applied Physics Solutions, Inc.Inventors: Suzanne Lapi, Thomas J. Ruth, Dirk W. Becker, John M. D'Auria
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Patent number: 8187561Abstract: Processes and systems for recovering promoter-containing compounds, for example, perrhenates, from promoter-containing catalyst substrates, for example, substrates containing precious metals, such as silver, are disclosed. The processes include contacting the substrates with a first solution adapted to remove at least some of the catalyst promoter from the substrates, for example, an oxidizing agent, to produce a second solution containing catalyst promoter, passing the second solution through a porous medium adapted to capture at least some of the catalyst promoter, for example, a ion exchange resin; and passing a third solution, for example, a base solution, through the porous medium to remove at least some of the catalyst promoter from the porous medium and produce a fourth solution containing compounds having a catalyst promoter. Systems adapted to practice these processes are also disclosed.Type: GrantFiled: December 5, 2007Date of Patent: May 29, 2012Assignee: Ames Goldsmith CorporationInventors: Michael S. Herman, Michael J. Delsignore, Len D. Spaulding, James E. Phillips, Sr.
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Publication number: 20120058029Abstract: There is provided a hydrometallurgical process of recovering rhenium values from mixtures thereof with other metal values in which the rhenium values constitute a minority amount, for example super-alloys, which comprises subjecting the mixture to strongly oxidizing acid conditions, preferably an aqueous mixture of hydrochloric acid and nitric acid, so as to form perrhenate species of at least the major proportion of the rhenium values in the mixture, dissolving the perrhenate species and other soluble metal species in aqueous solution, removing insoluble metal species from the aqueous solution, and isolating the rhenium species from the solution.Type: ApplicationFiled: March 11, 2010Publication date: March 8, 2012Applicant: NEO PERFORMANCE MATERIALS LIMITEDInventors: Cesare G. Ferron, Larry E. Seeley
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Patent number: 8088353Abstract: A process for producing a Group II metal sulfide phosphor precursor, comprising adding to an organic solvent an aqueous solution containing at least one of a Group II element compound, a sulfurizing agent, and a compound containing any of copper, silver, manganese, gold, and rare-earth elements to obtain a reaction mixture, heating the reaction mixture to produce an azeotrope of the water and the organic solvent, and removing water from the reaction mixture to produce a desired Group II metal sulfide in the reaction mixture, wherein the removal of water from the reaction mixture occurs by recovering only the water condensed from a vapor produced by the azeotropic distillation.Type: GrantFiled: November 11, 2008Date of Patent: January 3, 2012Assignee: Kuraray Co., Ltd.Inventors: Jun Takai, Yoshihisa Tsuji, Hideharu Iwasaki
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Patent number: 8084662Abstract: The invention provides a novel method of detoxifying highly toxic chemicals, and treating surfaces contaminated, or potentially contaminated, with toxic chemical agents such as chemical warfare agents and/or industrial toxins. The methods utilizes a novel sorbent compound which comprises Mn(VII) mineral which can be either solid supported or non-solid supported. The Mn(VII) mineral can be provided in a number of different forms including creams, lotions, powders, liquids, slurries and aerosols.Type: GrantFiled: May 9, 2005Date of Patent: December 27, 2011Assignee: ChK Group Inc.Inventors: Rajan K. Vempati, Edward R. Biehl, Ramesh S. Hegde, David Y. Son
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Patent number: 8048308Abstract: The invention relates to a process for separating, in an aqueous medium, at least one actinide element from one or more lanthanide elements by using at least one molecule which sequesters the said actinide element to be separated and membrane filtration, the said process successively comprising: a) a step of bringing at least one molecule which sequesters the said actinide element in contact with the aqueous medium, the said molecule not being retained in the non-complexed state by the said membrane and being capable of forming a complex with the actinide element to be separated, comprising the said element and at least two of the said sequestering molecules, which complex is capable of being retained by the membrane; b) a step of passing the aqueous medium over the membrane in order to form a permeate on one side, comprising an aqueous effluent depleted of the said actinide element, and a retentate comprising the said complex.Type: GrantFiled: January 30, 2007Date of Patent: November 1, 2011Assignee: Commissariat a l'Energie AtomiqueInventors: Gilles Bernier, Jean-Marc Adnet, Alain Favre-Reguillon, Gérard Le Buzit, Marc Lemaire, Stéphane Pellet-Rostaing, Antoine Sorin, Jacques Foos