Patents Assigned to Industrie De Nora S.p.A.
  • Anodic compartment for metal electrowinning cells
    Patent number: 9206517
    Abstract: The present invention concerns an anodic compartment for metal electrowinning cells delimited by a frame-shaped skeleton comprising an envelope including a permeable separator secured to said frame-shaped skeleton by means of a frame-shaped flange, at least one anode obtained starting from a valve metal substrate coated with at least one corrosion-resistant catalytic layer, said anode being inserted inside said envelope, and a demister located above said anode and delimited by said separator and said skeleton. The invention also concerns an electrochemical cell for metal electrowinning comprising at least one such anodic compartment.
    Type: Grant
    Filed: October 25, 2012
    Date of Patent: December 8, 2015
    Assignee: INDUSTRIE DE NORA S.P.A.
    Inventor: Giuseppe Faita
  • Anode for cathodic protection
    Patent number: 9194047
    Abstract: The invention relates to an anode for cathodic protection in form of strip with a catalyst-coated metal part continuously integral with an insulating element of polymer material. The activated metal part and the insulating material can be arranged on opposite faces of the strip, or the insulating element can consist of two rails accommodating the edges of the metal part. The insulating element can be painted with a colored or luminescent pigment to favor its identification and facilitate the putting in place of the anode.
    Type: Grant
    Filed: October 18, 2010
    Date of Patent: November 24, 2015
    Assignee: INDUSTRIE DE NORA S.P.A.
    Inventors: Michele Tettamanti, Simone Tremolada
  • ELECTRODE FOR OXYGEN EVOLUTION IN INDUSTRIAL ELECTROCHEMICAL PROCESSES
    Publication number: 20150292106
    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: Application
    Filed: November 29, 2013
    Publication date: October 15, 2015
    Applicant: INDUSTRIE DE NORA S.P.A.
    Inventors: Alice Calderara, Luciano Iacopetti, Fabio Timpano
  • Cell for depolarised electrodialysis of salt solutions
    Patent number: 9108165
    Abstract: The invention relates to a salt solution electrodialysis cell for production of the relevant acids and bases by means of a process with reduced or nil consumption of electrical energy. The cell comprises an anodic chamber fed with hydrogen and a cathodic chamber fed with oxygen or air, provided with the relevant gas-diffusion electrodes; the driving power of the electrodialysis process is given by the oxidation and reduction chemical potentials of hydrogen and oxygen fed to the two chambers.
    Type: Grant
    Filed: March 28, 2012
    Date of Patent: August 18, 2015
    Assignee: INDUSTRIE DE NORA S.P.A.
    Inventor: Giuseppe Faita
  • Electrode for electrochemical processes and method for obtaining the same
    Patent number: 9090983
    Abstract: An electrode suitable for use as hydrogen-evolving cathode in electrolytic processes is obtained by thermal decomposition of a precursor consisting of an acetic solution of nitrates of ruthenium, and optionally of rare earths. The electrode displays a low cathodic hydrogen evolution overpotential, an improved tolerance to current reversal phenomena and a high duration in industrial operating conditions.
    Type: Grant
    Filed: August 21, 2012
    Date of Patent: July 28, 2015
    Assignee: INDUSTRIE DE NORA S.P.A.
    Inventors: Marianna Brichese, Antonio Lorenzo Antozzi, Alice Calderara
  • Electrode for electrolytic processes with controlled crystalline structure
    Patent number: 9090982
    Abstract: The invention relates to a cathode for electrolytic processes provided with a catalytic coating based on ruthenium crystallites with highly controlled size falling in a range of 1-10 nm. The coating can be produced by physical vapor deposition of a ruthenium or ruthenium oxide layer.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: July 28, 2015
    Assignee: INDUSTRIE DE NORA S.P.A.
    Inventors: Christian Urgeghe, Stefania Mora, Antonio Lorenzo Antozzi
  • Electrode for electrolytic processes and method of manufacturing thereof
    Patent number: 9090981
    Abstract: The invention relates to an electrode for electrolytic processes, particularly to a cathode suitable for hydrogen evolution in an industrial electrolysis process comprising a metal substrate coated with an external catalytic layer containing crystalline ruthenium oxide having a highly ordered rutile-type structure with Ru Ru and Ru O bond length characterized by a Debye-Waller factor lower than a critical value. The catalytic outer layer may contain rare earth oxides, such as praseodymium. The electrode may also comprise an internal catalytic thin layer platinum-based, which gives an enhanced protection against accidental current reversal events.
    Type: Grant
    Filed: May 3, 2012
    Date of Patent: July 28, 2015
    Assignee: INDUSTRIE DE NORA S.P.A.
    Inventors: Marianna Brichese, Antonio Lorenzo Antozzi, Alice Calderara
  • System for electrochemical generation of hypochlorite
    Patent number: 9090980
    Abstract: The invention relates to a system for a point-of-use electrochemical generation of hypochlorite on demand in a wide range of volumes and concentration. The system is provided with a processor which adjusts the electrolyte composition, the current density and the electrolysis time, commanding an alert system capable of warning in advance whenever the replacement of electrodes is needed. Automated detection of the insertion and the correct type of several collecting vessels can also be provided, triggering the set-up of electrolysis parameters accordingly.
    Type: Grant
    Filed: June 17, 2011
    Date of Patent: July 28, 2015
    Assignee: INDUSTRIE DE NORA S.P.A.
    Inventor: Mariachiara Benedetto
  • ELECTRODE FOR EVOLUTION OF GASEOUS PRODUCTS AND METHOD OF MANUFACTURING THEREOF
    Publication number: 20150096896
    Abstract: The invention relates to an electrode suitable as anode for evolution of gaseous products comprising a metal substrate coated with at least one titanium suboxide layer having an interconnected porosity and containing catalytic noble metal oxides. The invention further relates to a method of manufacturing such electrode comprising applying a mixture of titanium suboxides and noble metal oxide-based catalyst on a valve metal substrate via cold gas spray technique.
    Type: Application
    Filed: May 16, 2013
    Publication date: April 9, 2015
    Applicant: INDUSTRIE DE NORA S.P.A.
    Inventors: Andrea Francesco Gullà, Chiara Pezzoni, Christian Urgeghe
  • Device for hand disinfection
    Patent number: 8999261
    Abstract: The invention relates to an apparatus for hand washing and disinfection by nebulization of an in-situ electrolyzed active solution. The dispensed solution contains active chlorine optionally added with ozone or peroxides.
    Type: Grant
    Filed: July 23, 2012
    Date of Patent: April 7, 2015
    Assignee: Industrie de Nora S.p.A.
    Inventor: Mariachiara Benedetto
  • CELL FOR DEPOLARISED ELECTRODIALYSIS OF SALT SOLUTIONS
    Publication number: 20150041323
    Abstract: The invention relates to a salt solution electrodialysis cell for production of the relevant acids and bases by means of a process with reduced or nil consumption of electrical energy. The cell comprises an anodic chamber fed with hydrogen and a cathodic chamber fed with oxygen or air, provided with the relevant gas-diffusion electrodes; the driving power of the electrodialysis process is given by the oxidation and reduction chemical potentials of hydrogen and oxygen fed to the two chambers.
    Type: Application
    Filed: March 28, 2012
    Publication date: February 12, 2015
    Applicant: Industrie De Nora S.p.A.
    Inventor: Giuseppe Faita
  • Electrode for oxygen evolution in industrial electrolytic processes
    Patent number: 8932442
    Abstract: The invention relates to a catalytic coating suitable for oxygen-evolving anodes in electrochemical processes. The catalytic coating comprises an outermost layer with an iridium and tantalum oxide-based composition modified with amounts not higher than 5% by weight of titanium oxide.
    Type: Grant
    Filed: January 26, 2012
    Date of Patent: January 13, 2015
    Assignee: Industrie de Nora S.p.A.
    Inventors: Alice Calderara, Antonio Lorenzo Antozzi, Ruben Ornelas Jacobo
  • ANODE FOR OXYGEN EVOLUTION
    Publication number: 20140311915
    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: Application
    Filed: June 22, 2012
    Publication date: October 23, 2014
    Applicant: INDUSTRIE DE NORA S.p.A.
    Inventors: Fabio Timpano, Alice Calderara
  • ANODIC COMPARTMENT FOR METAL ELECTROWINNING CELLS
    Publication number: 20140246306
    Abstract: The present invention concerns an anodic compartment for metal electrowinning cells delimited by a frame-shaped skeleton comprising an envelope including a permeable separator secured to said frame-shaped skeleton by means of a frame-shaped flange, at least one anode obtained starting from a valve metal substrate coated with at least one corrosion-resistant catalytic layer, said anode being inserted inside said envelope, and a demister located above said anode and delimited by said separator and said skeleton. The invention also concerns an electrochemical cell for metal electrowinning comprising at least one such anodic compartment.
    Type: Application
    Filed: October 25, 2012
    Publication date: September 4, 2014
    Applicant: INDUSTRIE DE NORA S.P.A.
    Inventor: Giuseppe Faita
  • ANODIC STRUCTURE FOR HORIZONTAL CELLS FOR PROCESSES OF METAL ELECTRODEPOSITION
    Publication number: 20140231267
    Abstract: The present invention concerns an electrode for oxygen evolution in electroplating plants comprising a valve metal substrate and an outer catalytic layer, the substrate consisting of a metal plate provided with slits of area ranging from 2 to 8 cm2, said slits being spaced apart by a distance of 5 to 25 cm. The invention also concerns a horizontal electrochemical cell for electro-plating processes comprising at least one of said electrodes, and an electroplating plant equipped with at least one of said cells. The invention also concerns an electroplating process comprising the step of anodically evolving oxygen on the surface of said electrode.
    Type: Application
    Filed: November 23, 2012
    Publication date: August 21, 2014
    Applicant: Industrie de Nora S.P.A.
    Inventors: Jose Eduardo Gomes De Abreu, Takashi Oishi, Alice Calderara
  • GAS-DIFFUSION ELECTRODE
    Publication number: 20140227634
    Abstract: The invention relates to a gas-diffusion electrode provided with a sintered and cast gas-diffusion layer having a high elastic modulus. The electrode is useful as hydrogen-consuming anode or oxygen-consuming cathode of depolarised electrolytic cells such as electrowinning, chlor-alkali or electrodialysis cells.
    Type: Application
    Filed: September 13, 2012
    Publication date: August 14, 2014
    Applicant: INDUSTRIE DE NORA S.p.A.
    Inventors: Andrea Francesco Gulla, Julia Krasovic
  • PERMANENT SYSTEM FOR CONTINUOUS DETECTION OF CURRENT DISTRIBUTION IN INTERCONNECTED ELECTROLYTIC CELLS
    Publication number: 20140209455
    Abstract: The invention relates to a current collecting bus-bar comprising electrode housings for accommodating a multiplicity of electrodes in electrical contact therewith. Probes for measuring the electric potential locally established in correspondence of the electrical contacts during the passage of electric current are also connected to the bus-bar. The invention further relates to a permanent monitoring system allowing the continuous evaluation of current distribution on each electrode of electrolysis cells of metal electrowinning or electrorefining plants, connected to an alerting system and to means for disconnecting individual electrodes in case on non-compliance with preset values.
    Type: Application
    Filed: September 13, 2012
    Publication date: July 31, 2014
    Applicant: INDUSTRIE DE NORA S.p.A.
    Inventor: Felix Prado
  • Separator for chlor-alkali electrolytic cells and method for its manufacturing
    Patent number: 8778149
    Abstract: The invention relates to a synthetic diaphragm for chlor-alkali cells with improved energy consumption and gas separation characteristics. The diaphragm comprises a network of polymer fibers bound to a hydrophilic ceramic material containing zirconium chemically bound to hydroxyl groups. The ceramic material is obtained starting from ZrO2 by a process of hydration under vacuum which can be carried out directly in the cell by means of suitable equipment.
    Type: Grant
    Filed: August 10, 2012
    Date of Patent: July 15, 2014
    Assignee: Industrie de Nora S.p.A.
    Inventor: Giovanni Meneghini
  • Cathode member and bipolar plate for hypochlorite cells
    Patent number: 8702877
    Abstract: A cathodic member for electrochemical cells used in hypochlorite production comprises a zirconium plate coated with a zirconium oxide layer, which is particularly suitable for minimising the decomposition of the hypochlorite product while ensuring a prolonged lifetime. The coated zirconium plate can be used as the cathodic plate in a monopolar cell, or can be welded to a titanium plate for use in a bipolar configuration.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: April 22, 2014
    Assignee: Industrie de Nora S.p.A.
    Inventors: Carl W. Brown, Jr., Richard C. Carlson, Kenneth L. Hardee
  • Electrode suitable as hydrogen-evolving cathode
    Patent number: 8696877
    Abstract: The invention relates to a cathode for hydrogen evolution in electrolysis cells, for instance chlor-alkali cells or cells for producing chlorate or hypochlorite, obtained starting from a substrate of nickel or other conductive material galvanically coated with nickel co-deposited with an amorphous molybdenum oxide.
    Type: Grant
    Filed: June 2, 2011
    Date of Patent: April 15, 2014
    Assignee: Industrie de Nora S.p.A.
    Inventors: Nedeljko Krstajic, Vladimir Jovic, Antonio Lorenzo Antozzi