Patents Assigned to Industrie De Nora S.p.A.
  • Patent number: 11421332
    Abstract: The invention relates to an electrolytic cell equipped with microelectrodes for the generation of un-separated products and the method for obtaining it. The cell and the microelectrodes of the present invention are obtained using a technology for the production of microelectromechanical systems (MEMS). The anodic and cathodic microelectrodes have an electrocatalytic coating and are mutually intercalated at an interelectrodic gap lower than 300 micrometres.
    Type: Grant
    Filed: November 8, 2013
    Date of Patent: August 23, 2022
    Assignee: INDUSTRIE DE NORA S.P.A.
    Inventor: Andrea Francesco Gulla
  • Patent number: 11365136
    Abstract: The present invention relates to an electrode for electrochlorination processes, optionally operable under polarity reversal conditions, comprising an active layer provided with a doped Ru—Ti catalytic composition.
    Type: Grant
    Filed: September 11, 2019
    Date of Patent: June 21, 2022
    Assignee: INDUSTRIE DE NORA S.P.A.
    Inventors: Anna Ramunni, Fabio Timpano
  • Patent number: 11208728
    Abstract: The invention relates to an electrochemical cell partitioned by a cation-exchange membrane suitable for production of high purity hydrogen and oxygen by electrolysis of alkaline solutions comprising a cathode in form of porous web including a platinum or palladium catalyst. The cell can be used as an element of a modular filter-press electrolyzer.
    Type: Grant
    Filed: July 15, 2014
    Date of Patent: December 28, 2021
    Assignee: INDUSTRIE DE NORA S.P.A
    Inventor: Julia Lynne Krasovic
  • Patent number: 11180388
    Abstract: A method for treating wastewater involves electrolyzing a stream of seawater and wastewater mix within one or more electrolytic cells mounted outside a batch tank. The electrolyzed stream is piped to a quelling chamber which is mounted above the batch tank. A diluted polymer solution is injected at upstream of an in-line mixer piping into the quelling chamber substantially concurrently with the electrolyzed stream. The polymer solution and the electrolyzed stream are dispersed as a fine shower over residual seawater and wastewater in the batch tank. The polymer solution facilitates flocculation of the suspended solid particles and creates a distinct buoyant layer of flocculated solid particles attached with micro bubbles. A substantially clarified effluent is separated from the flocculated layer and neutralized prior to discharge. The flocculated layer is pumped from the batch tank to a dewatering system where entrained solids are compacted to a desired level.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: November 23, 2021
    Assignee: INDUSTRIE DE NORA S.P.A.
    Inventors: Dana Casbeer, Rubin Bariya, Sehul Patel, Rudolf Matousek, Thomas Reeves
  • Patent number: 11136684
    Abstract: The invention relates to an electrode which can be employed in the cells of plants for the electrolytic extraction of copper and other non-ferrous metals from ionic solutions. The electrode consists of an apparatus comprising at least one anodic panel for the evolution of oxygen or chlorine connected through a plurality of resistors in parallel to at least one distribution structure for electrical current. The panel may optionally exhibit areas of electrical discontinuity. The invention also relates to an electrolyser using the electrode described above.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: October 5, 2021
    Assignee: INDUSTRIE DE NORA S.P.A.
    Inventors: Alessandro Fiorucci, Michele Perego, Paolo Perrone, Corrado Mojana
  • Patent number: 11098415
    Abstract: The invention relates to an electrode for electrolytic processes, in particular to an anode suitable for oxygen evolution comprising a valve metal substrate, a catalytic layer, a protection layer consisting of oxides of valve metals interposed between the substrate and the catalytic layer and an outer coating of oxides of valve metals. The electrode of the invention is particularly suitable for processes of cathodic electrodeposition of chromium from an aqueous solution containing Cr (III).
    Type: Grant
    Filed: November 29, 2013
    Date of Patent: August 24, 2021
    Assignee: INDUSTRIE DE NORA S.P.A.
    Inventors: Alice Calderara, Luciano Iacopetti, Fabio Timpano
  • Patent number: 11001935
    Abstract: An electrode for electrochemical processes comprises a substrate of titanium or other valve metal, an intermediate protection layer based on valve metal oxides and a catalytic layer based on oxides of tin and of iridium doped with small amounts of oxides of elements selected between bismuth, antimony, tantalum and niobium. The electrode used in electrometallurgical processes, for example in the electrowinning of metals, as anode for anodic oxygen evolution presents a reduced overvoltage and a higher duration.
    Type: Grant
    Filed: June 22, 2012
    Date of Patent: May 11, 2021
    Assignee: INDUSTRIE DE NORA S.P.A.
    Inventors: Fabio Timpano, Alice Calderara
  • Patent number: 10988850
    Abstract: An electrodic support structure for coaxial electrolytic cells suitable for operating in both monopolar and bipolar configuration is provided. The electrode support structure has a support plane made of an isolating material provided with a plurality of housing seats suitable for housing a plurality of electrodes arranged homothetically to each other, and a partition member made of insulating material, provided with a plurality of electrode positioning means, integral with or mechanically connected to the support plane and arranged orthogonally thereto.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: April 27, 2021
    Assignee: INDUSTRIE DE NORA S.P.A.
    Inventors: Mariachiara Benedetto, Elena Carminati
  • Patent number: 10968526
    Abstract: The invention relates to an electrolysis cell of alkali solutions partitioned by an ion-exchange membrane into an anodic compartment in which an alkaline electrolyte is circulated and a cathodic compartment consisting of a gas chamber; the cathodic compartment contains a gas-diffusion cathode in whose interior an electrolyte film coming from the anodic compartment percolates.
    Type: Grant
    Filed: October 15, 2013
    Date of Patent: April 6, 2021
    Assignee: INDUSTRIE DE NORA S.P.A.
    Inventors: Luciano Iacopetti, Antonio Lorenzo Antozzi
  • Patent number: 10883184
    Abstract: The invention relates to a process of abatement of the organic content of a depleted brine coming from epoxy compound production involving a vapour stripping step and a mineralisation with hypochlorite in two steps, at distinct pH and temperature conditions.
    Type: Grant
    Filed: March 27, 2013
    Date of Patent: January 5, 2021
    Assignee: INDUSTRIE DE NORA S.P.A.
    Inventors: Luciano Iacopetti, Giovanni Meneghini, Gaetano Porcino, Giuseppe Faita
  • Patent number: 10655236
    Abstract: The present invention relates to an electrode structure which can detect the electric current and optionally activate alarm signals in electrolytic cells for the electrodeposition of non-ferrous metals, for example for electrowinning of metals, in particular for the electrolytic production of copper and other non-ferrous metals proceeding from ionic solutions. The present invention further relates to a data acquisition system to be used in connection with said electrode structure.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: May 19, 2020
    Assignee: INDUSTRIE DE NORA S.P.A.
    Inventor: Felix Prado Pueo
  • Patent number: 10626278
    Abstract: The invention relates to a coating for providing protection against interstitial corrosion for titanium surfaces such as flanges or other equipment used in highly aggressive electrolytic environments, for example hydrochloric acid electrolysis cells. The coating according to the invention comprises a passivating layer, on which a film of water-repellent material is applied. The invention further relates to a method for providing anticorrosive protection for flanges of electrochemical cells.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: April 21, 2020
    Assignee: INDUSTRIE DE NORA S.P.A.
    Inventors: Alice Calderara, Valentina Bonometti
  • Patent number: 10590546
    Abstract: The present invention concerns an electrode element having a valve metal substrate, a first catalyst component applied to said substrate, said first catalyst component suitable for evolving oxygen from an aqueous solution under anodic polarization, a second catalyst component suitable for generating chlorine dioxide from a chlorate solution in acidic environment; said first and second catalyst component being electrically insulated from each other. The inventions also concern an electrolytic cell having such an electrode element and a process for the generation of chlorine dioxide on a catalyst component an electrochemical cell comprising such an electrode element.
    Type: Grant
    Filed: July 17, 2015
    Date of Patent: March 17, 2020
    Assignee: INDUSTRIE DE NORA S.P.A.
    Inventor: Kenneth L. Hardee
  • Patent number: 10590554
    Abstract: Safe anode for electrochemical cells, of the type of vertical anodes constituted of a hanging structure based on a first horizontal bar, second vertical distribution bars defined by a copper or aluminum core with a titanium exterior layer, and coated or uncoated titanium anode plates attached to the second distribution bars, on both sides, such that the safe anode incorporates an adapter element that comprises, at least, one current limiter assembly, arranged between, at least, one of the second vertical distribution bars, and, at least, one coated or uncoated titanium anode plate, connecting the vertical distribution bar to the coated or uncoated titanium anode plate.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: March 17, 2020
    Assignee: INDUSTRIE DE NORA S.P.A.
    Inventor: Felix Prado Pueo
  • Publication number: 20190338147
    Abstract: The invention relates to a coating for providing protection against interstitial corrosion for titanium surfaces such as flanges or other equipment used in highly aggressive electrolytic environments, for example hydrochloric acid electrolysis cells. The coating according to the invention comprises a passivating layer, on which a film of water-repellent material is applied. The invention further relates to a method for providing anticorrosive protection for flanges of electrochemical cells.
    Type: Application
    Filed: December 21, 2016
    Publication date: November 7, 2019
    Applicant: Industrie de Nora S.p.A.
    Inventors: Alice CALDERARA, Valentina BONOMETTI
  • Patent number: 10407784
    Abstract: An electrode on valve metal substrate suitable for the evolution of oxygen in electrolytic processes is provided with a coating having a catalytic layer containing platinum group metals and one or more protective layers based on tin oxide modified with a doping element selected from bismuth, antimony or tantalum and with a small amount of ruthenium. The electrode is useful in processes of non-ferrous metal electrowinning.
    Type: Grant
    Filed: June 22, 2016
    Date of Patent: September 10, 2019
    Assignee: INDUSTRIE DE NORA S.P.A.
    Inventors: Alice Calderara, Fabio Timpano, Takashi Furusawa
  • Patent number: 10309023
    Abstract: An anodic structure for electrowinning cells having an anode hanger bar, a support structure of insulating material, at least one anode mesh having a valve metal substrate provided with a catalytic coating, said at least one anode being subdivided into at least two reciprocally insulated sub-meshes, said sub-meshes being individually supplied with electrical current through conductive means connected with said anode hanger bar, the anodic structure being further provided with at least one electronic system having at least one current probe and at least one actuator for individually measuring and controlling current supply to each of said sub-meshes.
    Type: Grant
    Filed: February 3, 2015
    Date of Patent: June 4, 2019
    Assignee: INDUSTRIE DE NORA S.P.A.
    Inventor: Felix Prado Pueo
  • Patent number: 10301731
    Abstract: The invention relates to a cell for metal electrowinning equipped with a device useful for preventing the adverse effects of dendrite growth on the cathodic deposit. The cell comprises a porous conductive screen, positioned between the anode and the cathode, capable of stopping the growth of dendrites and avoiding that they reach the anode surface.
    Type: Grant
    Filed: April 3, 2014
    Date of Patent: May 28, 2019
    Assignee: INDUSTRIE DE NORA S.P.A.
    Inventors: Alessandro Fiorucci, Alice Calderara, Luciano Iacopetti
  • Patent number: 10301730
    Abstract: This invention relates to electrodic apparatus suitable for the electrodeposition of nonferrous metals, for example for the electrolytic production of copper and other nonferrous metals from solutions of ions, comprising an electrode and at least one ionpermeable screen intended for protection of the said electrode.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: May 28, 2019
    Assignee: INDUSTRIE DE NORA S.P.A.
    Inventors: Corrado Mojana, Luciano Iacopetti, Andrea Gozzo, Roberto Pagano
  • Patent number: 10287190
    Abstract: The invention relates to an electrode suitable for decreasing the chemical oxygen demand of waste-water comprising: a) a permanent component; and b) a sacrificial component arranged face-to-face and releasably attached to the permanent component and in electrical contact therewith, said permanent component consisting of a Substrate of a valve metal equipped with a catalytic coating containing noble metals or oxides thereof, said sacrificial component containing elemental iron. Further the invention relates to a method for abatement of the chemical oxygen demand in an aqueous waste containing oily compounds, glycols or waxes, optionally consisting of a foundry waste, by an electrolytic process involving anodic chlorine evolution in the presence of trivalent iron. Chlorine evolution may be carried out on the surface of an anode consisting of a catalytically activated-valve metal permanent component coupled to an iron-containing sacrificial component.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: May 14, 2019
    Assignee: INDUSTRIE DE NORA S.P.A.
    Inventor: Mariachiara Benedetto