Heavy Metal Patents (Class 210/688)
  • Patent number: 10781314
    Abstract: A pigment comprising dyed crystalline cellulose particles comprising a crystalline cellulose core having a surface charge, optionally one or more polyelectrolyte layers with alternating charges adsorbed on top of each other on the crystalline cellulose core, the polyelectrolyte layer closest to the core having a charge opposite the surface charge of the core, and at least one organic dye having a charge is provided.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: September 22, 2020
    Assignee: ANOMERA INC.
    Inventors: Mark P. Andrews, Timothy Morse
  • Patent number: 10722865
    Abstract: A multi-functional composition of matter that is useful for injection into a flue gas stream to rapidly and efficiently remove mercury from the flue gas streams, particularly at above average flue stream temperatures of about 340° F. or higher. The multi-functional composition of matter may include a fixed carbon content of at least about 20 wt. %, a mineral content of from about 20 wt. % to about 50 wt. %, a sum of micropore plus mesopore volume of at least about 0.20 cc/g, a micropore volume to mesopore volume ratio of at least about 0.7, and a tapped density of not greater than about 0.575 g/ml. These compositions may be further characterized by number of particles per gram of the composition of matter such that the composition may have at least about 0.8 billion particles per gram, or even as many as 1.5 billion particles per gram.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: July 28, 2020
    Assignee: ADA Carbon Solutions, LLC
    Inventors: Joseph M. Wong, Christopher Vizcaino, Robert B. Huston, Frederick S. Cannon, Jacob B. Lowring, Jacqueline Cecil de Peyer
  • Patent number: 10717955
    Abstract: The disclosure provides a method for selectively removing sulfites, for example bisulfite anionic species, from a beverage comprising free sulfite by providing an effective amount of a non-ionic, solid phase material and contacting the beverage with the solid phase material thereby sequestering the free sulfite on the non-ionic, solid phase material and providing a beverage having a reduced amount of free sulfite that otherwise maintains the general chemical composition with which it started. The disclosure further provides a device for selectively removing sulfite from a beverage comprising a container for receiving a beverage comprising free sulfite, said container enclosing a non-ionic, solid phase material capable of sequestering free sulfite, and a modular apparatus comprising a sulfite capture module and optionally a sediment filter module or an aeration module. Optionally, the non-ionic solid phase material is food-safe.
    Type: Grant
    Filed: October 2, 2014
    Date of Patent: July 21, 2020
    Inventor: James Richard Kornacki
  • Patent number: 10702918
    Abstract: A new iron-based powder containing a plurality of composite particles composed of a ferritic iron or iron-based porous 5 structural particles having at least one particulate friction modifier distributed in the pores and cavities of the structural particles and further containing at least one particulate stabilizer-sealer. The composite particle is especially suited to be used as a functional material in friction formulations such as brake pads and enable replacement of copper or copper-based materials used in such friction 10 material formulations.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: July 7, 2020
    Assignee: HÖGANÄS AB (PUBL)
    Inventor: Bo Hu
  • Patent number: 10656119
    Abstract: A volume susceptibility (?s1) of a first dispersoid particle (s1) is obtained. A second dispersoid particle (s2) that is the first dispersoid particle (s1) to which an adsorbate is adsorbed is obtained. A volume susceptibility (?s2) of the second dispersoid particle (s2) is obtained. An amount of a functional group of the first dispersoid particle (s1) is analyzed through obtaining an amount of the adsorbate included in the second dispersoid particle (s2) based on the volume susceptibilities (?s1) and (?s2) of the first and second dispersoid particles (s1) and (s2).
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: May 19, 2020
    Assignee: KAWANO Lab. Inc.
    Inventor: Makoto Kawano
  • Patent number: 10562800
    Abstract: The present disclosure provides a method for processing a fluorine-containing aqueous solution. The method comprises a reaction step for mixing in a vertical direction the fluorine-containing aqueous solution and a disiloxane compound represented by a general formula RaRbRcSiOSiRdReRf, wherein Ra, Rb, Rc, Rd, Re and Rf are selected independently from each other from a group consisting of a phenyl group and an alkyl group comprising from 1 to 20 carbon atoms and hydrogen, to react a fluorine ion in the fluorine-containing aqueous solution with the disiloxane compound, obtaining a first reaction liquid containing a monofluorosilane compound represented by general formulas RaRbRcSiF and RdReRfSiF.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: February 18, 2020
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Nobuo Fukita, Shoji Itakura, Michinobu Koizumi, Kenji Otoi, Hitoshi Motoyama, Kayui Go
  • Patent number: 10525442
    Abstract: Method and apparatus for controlling metals in a liquid are described. The liquid is contacted with a hexahydrotriazine and/or a hemiaminal material, and metal is adsorbed from the liquid onto the material. The hexahydrotriazine and/or hemiaminal material may be made from a diamine and an aldehyde.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: January 7, 2020
    Assignee: International Business Machines Corporation
    Inventors: Dylan J. Boday, Jeannette M. Garcia, James L. Hedrick, Rudy J. Wojtecki, Gavin O. Jones
  • Patent number: 10450200
    Abstract: The compound according to the invention is a compound of formula (1) Ax W1-yMOyO3, wherein A is chosen from the group comprising the Li, Na, NH4, K and H cations, and it is characterized in that x and y verify the relationships 0?x?1 and 0?y?0.5, and in that it has a crystalline structure of the hexagonal type with a base of WO6 octahedra, said structure having tunnels delimited by 6, 4 and 3 of said octahedra and oriented along the axis c.
    Type: Grant
    Filed: October 21, 2014
    Date of Patent: October 22, 2019
    Assignees: RHODIA OPERATIONS, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, SORBONNE UNIVERSITE
    Inventors: Valerie Buissette, Thierry Le Mercier, Julie Besnardiere, Sophie Cassaignon, David Portehault, Gilles Wallez
  • Patent number: 10436749
    Abstract: A fluid testing system can be used to measure the levels of contaminants in a fluid system. The system can utilize anodic stripping voltammetry or some other chemical, electrical, or electrochemical process to measure the contaminant levels. Wire electrodes may be used to facilitate the tests. Unused portions of the electrode wires can be fed into the test chambers between tests to ensure clean and reliable electrodes for subsequent testing.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: October 8, 2019
    Assignee: Ketos Inc.
    Inventors: Meena Sankaran, Mazhar N. Ali, Harish Mehta
  • Patent number: 10370266
    Abstract: A cross-linked polymeric resin which contains reacted monomer units of an aniline, a diaminoalkane, and an aldehyde, and which is functionalized with at least one dithiocarbamate moiety. A process for producing the cross-linked polymeric resin whereby an aniline and a diaminoalkane are linked together by Mannich-type polycondensation reactions with an aldehyde. The resulting Mannich-type polycondensation product is converted into the cross-linked polymeric resin through functionalization of one or more amine functional groups with dithiocarbamate moieties. A method for removing heavy metals, such as Hg(II), from an aqueous solution, whereby the cross-linked polymeric resin is contacted with the aqueous solution, and the heavy metal is thus adsorbed onto the cross-linked polymeric resin.
    Type: Grant
    Filed: May 24, 2016
    Date of Patent: August 6, 2019
    Assignee: King Fahd University of Petroleum and Minerals
    Inventors: Oluwafemi S. Akintola, Tawfik Abdo Saleh Awadh, Mazen Mohammad Khaled, Othman Charles Sadeq Al Hamouz
  • Patent number: 10364198
    Abstract: Disclosed are sp2 carbon nanogranules with iron incorporated from heavy petroleum residue of a refinery. The nanogranules may be used for improved synthesis of light olefins (C2-C4) from syngas in a single step Fischer Tropsch synthesis to lower olefins, (FTO). The efficient iron incorporated carbon nanogranules derived from low value heavy petroleum residue are very attractive as a catalytic system for direct synthesis of light olefin (C2-C4) from syngas at CO conversion up to 30%.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: July 30, 2019
    Assignee: COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH
    Inventors: Indrajit Kumar Ghosh, Kumar Umesh, Ankur Bordoloi
  • Patent number: 10343137
    Abstract: A method for preparing a sorbent precursor, which may be sulphided and used to remove heavy metals such as mercury from fluid streams, includes the steps of: (i) mixing together an inert particulate support material and one or more binders to form a support mixture, (ii) shaping the support mixture by granulation in a granulator to form agglomerates, (iii) coating the agglomerates with a coating mixture powder including a particulate copper compound and one or more binders to form a coated agglomerate, and (iv) drying the coated agglomerate to form a dried sorbent precursor.
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: July 9, 2019
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Matthew James Evans, Paul Thomas Foran, Matthew David Gwydion Lunn
  • Patent number: 10328415
    Abstract: Method and apparatus for controlling metals in a liquid are described. The liquid is contacted with a hexahydrotriazine and/or a hemiaminal material, and metal is adsorbed from the liquid onto the material. The hexahydrotriazine and/or hemiaminal material may be made from a diamine and an aldehyde.
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: June 25, 2019
    Assignee: International Business Machines Corporation
    Inventors: Dylan J. Boday, Jeannette M. Garcia, James L. Hedrick, Gavin O. Jones, Rudy J. Wojtecki
  • Patent number: 10286390
    Abstract: The invention provides a method for the preparation of an amorphous silicate of at least one metal from the Group 4 of the Periodic Table of Elements with a total pore volume of at least 0.3 mL/g. The method of preparation involves the use of pore shaping conditions, which can be the use of a pore shaper and optionally an increased precipitation temperature, e.g. at least 60° C. The silicate of the invention is especially suitable in catalytic reactions such as esterifications, Michael additions, transesterifications, (ep)oxidations, hydroxylations, or in absorbance of small inorganic and organic molecules e.g. CO2 or aromatic compounds.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: May 14, 2019
    Assignee: BASE Corporation
    Inventors: Jim Aloysius Maria Brandts, Lorianne Wagemaker
  • Patent number: 10159264
    Abstract: Animal feeds and feed components are provided which comprise tunicate material. The tunicate material may be whole tunicate, e.g. washed and/or dried, or a tunicate extract. Preferred tunicate extracts include protein- and/or lipid-enhanced extracts. Also provided are uses of tunicates and tunicate extracts as, or in, animal feeds and methods for feeding animals, e.g. fish, comprising administering feeds containing tunicate material.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: December 25, 2018
    Assignee: BERGEN TEKNOLOGIOVERFORING AS
    Inventors: Christofer Troedsson, Eric Thompson, Jean-Marie Bouquet, Thorolf Magnesen, Christoffer Schander, Jiebing Li
  • Patent number: 10064346
    Abstract: A remote site has an associated state monitoring sub-system for monitoring environmental conditions of a remote site. A local site has an associated state generating sub-system for setting environmental conditions for life forms at the local site. A communication link connects the sub-systems. In response, to monitoring the state of an environmental condition at the remote site, a corresponding environmental condition is generated at the local site which depends on the monitored state.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: September 4, 2018
    Inventors: Lydia Wilkinson, Kathryn Wilkinson
  • Patent number: 10024815
    Abstract: A PH value detection device for detecting a PH value of a solution includes first and a second electrodes to be inserted into the solution; and a power source configured to apply a bipolar rectangular potential pulse signal to the first and second electrodes. A current detector is connected between the first and second electrodes and is configured to detect a current flowing through the first and second electrodes. A calculator is configured to calculate the PH value of the solution, based on the detected current.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: July 17, 2018
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Guangwei Wang, Peixin Hu
  • Patent number: 9961902
    Abstract: Photothermal antibacterial material RMG is provided in the present invention, where R represents aldehyde, di-aldehyde or multi-aldehyde, M is magnetic material, and G is reduced graphene oxide. A method of synthesizing the abovementioned antibacterial material comprises of three steps. At first graphene oxide was synthesized, followed by simultaneous reduction and functionalization with MNPs and eventually an aldehyde is modified on magnetic material to yield magnetic G functionalized glutaraldehyde (RMG). We utilize the photothermal feature of graphene for antibacterial activity, in addition graphene was functionalized with aldehyde for capturing bacteria and with magnetic material to enhance a focusing of light irradiation. Moreover, the magnetic properties of material could help for reusability of antibacterial material.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: May 8, 2018
    Assignee: NATIONAL TSING HUA UNIVERSITY
    Inventors: Yong-Chien Ling, Meng-Chin Wu
  • Patent number: 9907817
    Abstract: A biomimetic synthesis of antihyperglycemic nanoparticles using silver nitrate and Lavatera cretica is a method for the green synthesis of silver nanoparticles. These nanoparticles may be produced by extraction of fresh L. cretica leaves and mixing and incubation of the resulting L. cretica extract with silver nitrate to produce a nanoparticle composition including the silver nanoparticles. The nanoparticle composition may protect against hyperglycemia.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: March 6, 2018
    Assignee: KING SAUD UNIVERSITY
    Inventors: Veeramani Chinnadurai, Khalid S. Al-Numair, Mohammed A. Alsaif
  • Patent number: 9901901
    Abstract: A method of selectively extracting anions from an aqueous solution using an anion encapsulating aggregate formed upon the addition of a solvent, a copper contributor, a hydroxide contributor, a counterion contributor, and pyrazole to an aqueous solution containing the anions, or upon the addition of a solvent, a polymeric chain of [CuII(?-OH)(?-pz)]? and a counterion contributor to the aqueous solution. The aggregates include compounds of the formula cis CuIIx(OR1)y(R2pz)z, where R1 is H or an alkyl group, R2 is H, or an alkyl group or a charged group, pz is pyrazolate and each of x, y, and z is an integer between about 1 and about 40. In addition, ligand-containing anion encapsulating aggregates can be formed by synthesis with a lig-and-bound pyrazole or by substituting the ligand-bound pyrazole for the pyrazole incorporated in the aggregate.
    Type: Grant
    Filed: May 21, 2013
    Date of Patent: February 27, 2018
    Assignee: The Board of Trustees of Western Michigan University
    Inventor: Gellert Mezei
  • Patent number: 9889170
    Abstract: A method of preparing nanoparticles from desert date can include providing a metal salt solution comprising metal ions; providing desert date extract solution that comprises a reducing agent, and combining the metal ion solution and the desert date extract solution while stirring at a temperature in the range of 25° C. to 100° C. to produce metal or metal oxide nanoparticles. The metal nanoparticles can be gold nanoparticles. The metal oxide nanoparticles can be zinc oxide nanoparticles. The nanoparticles can be used to inhibit the growth or proliferation of a cancer cell and/or microorganisms.
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: February 13, 2018
    Assignee: KING SAUD UNIVERSITY
    Inventors: Manal Ahmed Gasmelseed Awad, Rabab Abd El Moneim Khalil El Dib, Awatif Ahmed Hendi, Shaza Mohamed Adel Al-Massarani, Khalid Mustafa Osman Ortashi
  • Patent number: 9889405
    Abstract: The present disclose is directed to a method for controlling iodine levels in wet scrubbers, and, in particular, recirculating wet scrubbers by removing the iodine from the scrubbing solution, such as by using ion exchange, absorption, adsorption, precipitation, filtration, solvent extraction, ion pair extraction, and an aqueous two-phase extraction.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: February 13, 2018
    Assignee: ADA-ES, INC.
    Inventors: Sharon Sjostrom, Kenneth E. Baldrey, Constance Senior
  • Patent number: 9822425
    Abstract: Provided herein are processes for recovering metal present at low concentration from an acidic aqueous solution, including contacting the acidic aqueous solution with an organic phase solution including one or more 5-(C8 to C14 alkyl)-2-hydroxyaryloxime, thereby extracting at least part of the metal from the acidic aqueous phase; increasing or maintaining the concentration of metal in the organic phase solution by recycling a portion of the organic phase solution containing the metal and contacting the organic phase with an acidic aqueous solution containing the metal; contacting the organic phase solution containing metal with an aqueous phase strip solution comprising an inorganic compound that back-extracts the metal, thereby stripping at least part of the metal from the organic phase solution to the aqueous phase strip solution; and separating the metal from the aqueous phase strip solution, thereby recovering the metal.
    Type: Grant
    Filed: January 28, 2015
    Date of Patent: November 21, 2017
    Assignee: Cytec Technology Corp.
    Inventors: Troy Allan Bednarski, Violina Antoneta Cocalia, Matthew Dean Soderstrom, Eduardo Alberto Kamenetzky, Andrew Michael Cameron, Douglas Harris
  • Patent number: 9656239
    Abstract: Method and apparatus for controlling metals in a liquid are described. The liquid is contacted with a hexahydrotriazine and/or a hemiaminal material, and metal is adsorbed from the liquid onto the material. The hexahydrotriazine and/or hemiaminal material may be made from a diamine and an aldehyde.
    Type: Grant
    Filed: June 16, 2014
    Date of Patent: May 23, 2017
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Dylan J. Boday, Jeannette M. Garcia, James L. Hedrick, Rudy J. Wojtecki, Gavin O. Jones
  • Patent number: 9597676
    Abstract: Aqueous catalysts of nanoparticles of precious metals and stabilizers of flavonoid derivatives are used to electrolessly plate metal on non-conductive substrates. Such substrates include printed circuit boards.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: March 21, 2017
    Assignee: Rohm and Haas Electronic Materials LLC
    Inventors: Feng Liu, Maria Anna Rzeznik
  • Patent number: 9574140
    Abstract: Methods, systems and designs are provided for removing mercury from crudes. Crude oil is heated to a temperature above 100° C. and held at that temperature for a specified period of time to convert all of the forms of mercury in the oil into the elemental mercury form. The elemental mercury is then stripped from the crude oil by e.g., flashing the hot oil and/or contacting it with a gas phase. This process transfers the elemental mercury from the oil phase into the gas phase. Elemental mercury can then be removed from the gas phase by methods such as condensation, precipitation, or absorption either alone or in combination.
    Type: Grant
    Filed: February 6, 2014
    Date of Patent: February 21, 2017
    Assignee: ConocoPhillips Company
    Inventors: Charles J Lord, III, Lars T Lambertsson, Erik L. Björn, Wolfgang Frech, Sally A. Thomas
  • Patent number: 9480965
    Abstract: Disclosed is a method for preparing a granulated inorganic adsorbent for radionuclides including slurry forming, solidification, drying and hardening, granulation, and washing steps: blending a dihydrogen phosphate, a powdered inorganic adsorbent raw material and a setting time regulator in water to form a slurry; adding sintered magnesia into the slurry, and blending the mixture to form a solidified slurry; setting the solidified slurry on a disk member, and naturally drying to hardening in a specific temperature range to form a hardened solid material; smashing the hardened solid material and performing vibration sieving by using a screen to obtain a granulated inorganic adsorbent for radionuclides containing residual reagents; washing the granulated inorganic adsorbent for radionuclides containing residual reagents with water, to remove the residual reagents to complete preparation, where the adsorption capacity of the granulated inorganic adsorbent for radionuclides thus prepared is in the range of 0.
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: November 1, 2016
    Assignee: INSTITUTE OF NUCLEAR ENERGY RESEARCH ATOMIC ENERGY COUNCIL, EXECUTIVE YUAN
    Inventors: Li-Ching Chuang, Chi-Hung Liao, Jen-Chieh Chung, Kou-Min Lin, Sheng-Wei Chiang, Kuang-Li Chien, Zhe-Cheng Hu, Wen-Chi Tsai
  • Patent number: 9441300
    Abstract: Aqueous catalysts of nanoparticles of precious metals and stabilizers of flavonoid derivatives are used to electrolessly plate metal on non-conductive substrates. Such substrates include printed circuit boards.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: September 13, 2016
    Inventors: Feng Liu, Maria Anna Rzeznik
  • Patent number: 9409147
    Abstract: The present invention relates to a method for granulation of an absorbent and adsorbent granules prepared by the same. The method comprises the steps of blending sodium metasilicate, metakaoline and an inorganic ion exchange material in water to form a slurry; decanting the resulted slurry onto a nylon cloth of 300 to 400 meshes and natural drying at ambient temperature to solidification; then breaking the solidified final product and sieving it by a screen having a mesh size of from 0.2 to 2.5 mm to provide the absorbent granules having excellent absorbability.
    Type: Grant
    Filed: August 7, 2014
    Date of Patent: August 9, 2016
    Assignee: INSTITUTE OF NUCLEAR ENERGY RESEARCH ATOMIC ENERGY COUNCIL, EXECUTIVE YUAN
    Inventors: Sheng-Wei Chiang, Kuang-Li Chien, Jen-Chieh Chung, Shih-Che Huang, Chi-Hung Liao, Kou-Min Lin
  • Patent number: 9187343
    Abstract: Means for reducing an arsenic ion concentration in the solution to the degree of ultra trace amount are provided. Ammonium molybdate is supported by a nanostructure material by mixing the nanostructure material, which is obtained after the nanostructure material such as an alumina reacts with a surfactant, in the solution containing the ammonium molybdate. The nanostructure material supporting an arsenic ion adsorption compound such as ammonium molybdate can selectively adsorb and remove trace of arsenic ion in the solution by a room temperature treatment without a water conditioning such as pH control. In our removal system of arsenic, extra posttreatments are not needed because special pretreatments are not carried out, and special heating equipments are not used. Accordingly, our removal system of arsenic can be constructed at low cost. Furthermore, it can supply an arsenic-free solution by be constructed at multi stages.
    Type: Grant
    Filed: January 12, 2012
    Date of Patent: November 17, 2015
    Assignee: National Institute for Materials Science
    Inventors: Sherif El-Safty, Ahmed Shahat Ahmed, Kohmei Halada, Mohamed Shenashen, Ahmed Abouelmagd, Hitoshi Yamaguchi
  • Publication number: 20150122734
    Abstract: A method of separating one or more valuable metal cations from an ionic solution by (a) contacting the ionic solution with an activated photoisomerizable host molecule containing a photoisomerizable moiety and a host moiety, where the photoisomerizable moiety has first and second states, and where the host moiety has a greater affinity for a metal cation when the photoisomerizable moiety is in the first state (active binding state) than when the photoisomerizable moiety is in the second state (release state), so that an ion-host molecule association is formed, and (b) separating the ion-host molecule association from the ionic solution. Also disclosed are photoisomerizable host molecules, a method of recovering valuable metals from a waste stream using the photoisomerizable host molecules, and an apparatus comprising a photoisomerizable host molecule attached to a support.
    Type: Application
    Filed: June 7, 2013
    Publication date: May 7, 2015
    Applicant: RUTGERS, THE STATE UNIVERSITY OF NEW JERSEY
    Inventors: Richard E. Riman, Brook Porter
  • Publication number: 20150108070
    Abstract: Disclosed herein is a method of preparing hyperbranched polyamidoamine particles, including: a) preparing a polyamidoamine precursor mixture from a multifunctional amine monomer and a multifunctional acrylamide monomer; and b) polymerizing the polyamidoamine precursor mixture into cross-linked hyperbranched polyamidoamine particles using reverse phase suspension polymerization. Also, hyperbranched polyamidoamine particles prepared by the method are provided, which can remove heavy metals in an aqueous solution without the need for an ultrafiltration apparatus.
    Type: Application
    Filed: March 12, 2013
    Publication date: April 23, 2015
    Inventors: Sang Youl Kim, Young Sik Eom
  • Patent number: 9011694
    Abstract: The present invention refers to a method for the synthesis of an adsorbing material consisting of a single-phase tetravalent manganese feroxyhite (?-Fe(1-x)MnxOOH), in which a percentage of 0.05 to 25% of iron atoms has been isomorphically substituted by Mn(IV) atoms. Its production takes place in a continuous two-stage flow reactor at weakly acidic conditions (pH 4-7) and high redox (300-800 mV). The material can be used for the removal of both pentavalent and trivalent arsenic as well as other heavy metals form water. More specifically, its adsorption capacity and selectivity depending on the trivalent and pentavalent arsenic water content, are determined by the manganese percentage and the compact or hollow morphology of its structural unit which can be both controlled by the parameters of the synthesis procedure.
    Type: Grant
    Filed: September 26, 2011
    Date of Patent: April 21, 2015
    Assignee: Loufakis Chemicals S.A.
    Inventors: Manassis Mitrakas, Konstantinos Symeonidis, Sofia Tresintsi
  • Patent number: 8974674
    Abstract: A method for producing an ammonium tungstate aqueous solution includes the steps of: adding sulfuric acid to a solution containing tungstate ions; bringing the solution having the sulfuric acid added therein, into contact with an anion exchange resin; and bringing the anion exchange resin into contact with an aqueous solution containing ammonium ions.
    Type: Grant
    Filed: March 5, 2010
    Date of Patent: March 10, 2015
    Assignees: National University Corporation Nagoya University, A.L.M.T. Corp., Sumitomo Electric Hardmetal Corp., Sumitomo Electric Industries, Ltd.
    Inventors: Hideaki Ito, Takeshi Itakura, Yoshiharu Yamamoto, Kazuo Sasaya, Takuya Okuno, Fumiatsu Sato, Syunsuke Yamanaka, Akihiko Ikegaya
  • Patent number: 8974578
    Abstract: Porous polymeric networks and composite materials comprising metal nanoparticles distributed in the polymeric networks are provided. Also provided are methods for using the polymeric networks and the composite materials in liquid- and vapor-phase waste remediation applications. The porous polymeric networks, are highly porous, three-dimensional structures characterized by high surface areas. The polymeric networks comprise polymers polymerized from aldehydes and phenolic molecules.
    Type: Grant
    Filed: May 7, 2013
    Date of Patent: March 10, 2015
    Assignee: Northwestern University
    Inventors: Mercouri G. Kanatzidis, Alexandros Katsoulidis
  • Patent number: 8968572
    Abstract: In a device and a process for purifying water which is contaminated with sulphate ions and heavy metal ions, the water is collected in a water reservoir and a substance having basic activity in water is fed to the water reservoir in such a manner that a precipitant having heavy metal ions is precipitated from the water, wherein at least a subquantity of water is taken off from the water reservoir and is separated into pure water which is substantially freed from sulphate ions and heavy metal ions and dirty water which is enriched with sulphate ions and heavy metal ions. The dirty water is at least in part recirculated to the water reservoir, as a result of which a concentration of sulphate ions in the water reservoir is achieved such that a precipitant having sulphate ions is precipitated from the water.
    Type: Grant
    Filed: January 7, 2008
    Date of Patent: March 3, 2015
    Assignee: Siemens Aktiengesellschaft
    Inventor: Michael Riebensahm
  • Publication number: 20150034561
    Abstract: The present invention concerns the elimination of heavy metals, in particular mercury and possibly arsenic and lead, present in a gaseous or liquid effluent by means of a capture mass comprising a support essentially based on alumina obtained by the gel method and at least one element selected from the group constituted by copper, molybdenum, tungsten, iron, nickel and cobalt. The invention is advantageously applicable to the treatment of gas of industrial origin, synthesis gas, natural gas, gas phase condensates and liquid hydrocarbon feeds.
    Type: Application
    Filed: September 12, 2012
    Publication date: February 5, 2015
    Applicant: IFP ENERGIES NOUVELLES
    Inventors: Fabien Porcheron, Karin Barthelet, Arnaud Baudot, Antoine Daudin, Marc-Antoine Lelias, Yannick Gelie, Alexandre Nicolaos
  • Patent number: 8940958
    Abstract: Method for the stabilization of contaminants within a material selected from soils, mining tailings and by-products, sludge wastes and industrial wastes, by mixing the material with an alum sludge composition. The composition includes one or more aluminum compound(s) and/or complex(es) together with a reactive carbon material.
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: January 27, 2015
    Assignees: Commonwealth Scientific and Industrial Research Organisation, Ziltek Pty Ltd
    Inventor: Michael John McLaughlin
  • Publication number: 20150014180
    Abstract: The present disclosure provides methods for producing chitosan derivatives and the derivatives formed by these methods. The processes of the present disclosure utilize electrochemical methods to functionalize and/or modify amine and/or hydroxyl groups present on chitosan, to form new derivatives. In embodiments, a nitro-chitosan derivative may be prepared. The altered cationic affinity of these derivatives make them excellent candidates for environmental applications, including water and waste treatments, and fertilizers.
    Type: Application
    Filed: February 1, 2013
    Publication date: January 15, 2015
    Inventors: Gary P. Halada, Prashant Kumar Jha
  • Publication number: 20150014253
    Abstract: The removal of heavy metals from aqueous solutions using metal-doped titanium dioxide nanoparticles is a method that comprises contacting the aqueous solution with metal-doped titanium dioxide nanoparticles. The three transition metals tungsten, vanadium and iron were selected for doping of titanium dioxide. Removal of the toxic heavy metals Pb(II), Zn(II) and Cd(II) was studied intensively by using metal-doped titanium dioxide to measure the isotherms and kinetics. The isotherms studies showed that the highest removal percentage of Pb(II) was achieved by W-doped titanium dioxide, while Fe-doped titanium dioxide and V-doped titanium dioxide performed better for removal of Zn(II) and Cd(II), respectively.
    Type: Application
    Filed: July 15, 2013
    Publication date: January 15, 2015
    Inventors: MOUSAB SALAH ALDEEN MIRGHANI, REYAD AWWAD KHALAF SHAWABKEH, NAIM MOH'D ABDALLAH FAQIR, MAMDOUH AHMED AL-HARTHI, MOHAMMAD BA SHAMMAKH
  • Publication number: 20150001156
    Abstract: Methods and apparatus provide for an inorganic substrate having at least one surface having a plurality of pores; zero valent nanoparticles deposited on the at least one surface and within at least some of the pores; and a stabilizer engaging the zero valent nanoparticles and operating to inhibit oxidation of the zero valent nanoparticles.
    Type: Application
    Filed: June 26, 2013
    Publication date: January 1, 2015
    Inventor: Benedict Yorke Johnson
  • Publication number: 20150001155
    Abstract: Methods and apparatus provide for zero valent nanoparticles coated with a stabilizer to inhibit oxidation, where the coating includes at least one of activated carbon, graphene, an inorganic oxide, and an organic material.
    Type: Application
    Filed: June 26, 2013
    Publication date: January 1, 2015
    Inventor: Benedict Yorke Johnson
  • Publication number: 20150001157
    Abstract: Methods and apparatus provide for subjecting water contaminated with one or more heavy metals to an ion exchange process such that a total quantity of anions within the water are reduced; and subsequent to the anion exchange process, bringing the contaminated water into contact with zero valent nanoparticles to remove at least some of the heavy metal from the water.
    Type: Application
    Filed: June 26, 2013
    Publication date: January 1, 2015
    Inventor: Benedict Yorke Johnson
  • Patent number: 8920655
    Abstract: The present invention relates to a method of removing organic chemicals and organometallic complexes (organic heavy metal complexes) using zeolites from process water or tailings streams of a mineral processing plant where diethylenetriamine (DETA) or triethylenetetramine (TETA) is used as a flotation reagent and DETA-metal complexes are found in process water or tailings streams. The process water or slurry tailings streams of a mineral processing plant containing DETA, DETA-metal complexes and residual heavy metals may be contacted with natural zeolites. This may be carried out by adding the natural zeolites to the process streams or slurries while mixing with a mechanical mixer to efficiently adsorb DETA, DETA-metal complexes and heavy metals from the process streams on the zeolite. The loaded zeolite may then be discarded with the flotation tailings.
    Type: Grant
    Filed: September 13, 2011
    Date of Patent: December 30, 2014
    Assignee: Vale S.A.
    Inventors: Jie Dong, Manqiu Xu, Kenneth Erwin Scholey
  • Publication number: 20140374358
    Abstract: A process for removing Hg2+ ions from a liquid stream is disclosed. The process involves contacting the liquid stream with specified ion-exchangers based on manganese oxides and metallomanganese oxides of the form An+wM3+xMn1-xO2 where A can be cations such as Na+ or Mg2+, M3+ can be metals such as Fe3+ or Co3+, and the TIC, the theoretical ion exchange capacity per framework metal atom, varies from 0.08 to 0.25. These ion-exchangers are particularly effective in removing Hg2+ ions from aqueous streams even in the presence of Mg2+ and Ca2+ ions.
    Type: Application
    Filed: June 24, 2013
    Publication date: December 25, 2014
    Applicant: UOP LLC
    Inventors: Gregory J. Lewis, Paulina Jakubczak, Julio C. Marte
  • Patent number: 8895633
    Abstract: The cross-linked polyaminocarboxylates for the removal of metal ions from aqueous solutions of the present invention are cross-linked anionic polyelectrolytes CAPE 6 and CAPE 9, containing pH-responsive amino acid residues. The cross-linked anionic polyelectrolytes have been synthesized via cycloco-polymerization and ter-polymerization of a diallylammonioethanoate monomer (90 mol %) and a cross-linker, 1,1,4,4-tetraallylpiperazinium dichloride (10 mol %) in the absence of SO2 (CAPE 6) and in the presence of SO2 (CAPE 9), respectively. For the sorbents CAPE 6 and CAPE 9, the efficiency of Cu2+ removal at an initial metal concentration of 200 ppb was found to be 77.5% and 99.4%, respectively. Treatment of real wastewater samples spiked with Cu2+ ions showed the excellent ability of the cross-linked anionic polyelectrolytes to adsorb metal ions.
    Type: Grant
    Filed: March 4, 2013
    Date of Patent: November 25, 2014
    Assignee: King Fahd University of Petroleum and Minerals
    Inventors: Othman Charles Sadeq Othman Al Hamouz, Shaikh Asrof Ali, Nouri Mohammed Hassan
  • Patent number: 8894863
    Abstract: Systems and methods are presented for removing an ionic material from a fluid using a capture polymer that sequesters the ionic material and an anchor particle bearing a tethering polymer. The tethering polymer complexes with the capture polymer after the capture polymer has sequestered the ionic material, thereby affixing a complex of capture polymer and ionic material to the anchor particle to form a removable complex. The removable material can be segregated from the fluid via a removal system, thereby removing the ionic material from the fluid.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: November 25, 2014
    Assignee: Soane Mining, LLC
    Inventors: David S. Soane, Nathan Ashcraft
  • Patent number: 8883216
    Abstract: Compositions and methods for heavy metal remediation are disclosed. The compositions contain ceramic nanoparticulate cation exchangers specific for at least one heavy metal as well as at least one carrier, typically a thickener, a gel forming agent and/or a cross-binding agent. The compositions may also contain chelating agents as well as beneficial agents such as vitamins and pharmaceuticals, with or without the ceramic nanoparticulate cation exchangers.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: November 11, 2014
    Assignee: Red Lion Chem Tech, LLC
    Inventors: Allan D. Pronovost, Michael E. Hickey
  • Patent number: 8883099
    Abstract: The present disclose is directed to a method for controlling iodine levels in wet scrubbers, and, in particular, recirculating wet scrubbers by removing the iodine from the scrubbing solution, such as by using ion exchange, absorption, adsorption, precipitation, filtration, solvent extraction, ion pair extraction, and an aqueous two-phase extraction.
    Type: Grant
    Filed: April 11, 2013
    Date of Patent: November 11, 2014
    Assignee: ADA-ES, Inc.
    Inventors: Sharon Sjostrom, Kenneth E. Baldrey, Constance Senior
  • Publication number: 20140311986
    Abstract: A process for removing Hg2+ ions from a liquid stream is disclosed. The process involves contacting the liquid stream with specified UOP Zeolitic Materials. These molecular sieves are particularly effective in removing Hg2+ ions from aqueous streams even in the presence of Mg2+ and Ca2+ ions. The effective molecular sieves have an intermediate range of Si/Al ratios between about 2 and 20 and preferably between 3 and 10.
    Type: Application
    Filed: February 21, 2014
    Publication date: October 23, 2014
    Applicant: UOP LLC
    Inventors: Gregory J. Lewis, Paulina Jakubczak, Julio C. Marte, Susan C. Koster, Mark A. Miller, Lisa M. Knight, Jaime G. Moscoso