Patents Assigned to Industrie De Nora S.p.A.
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Patent number: 12252796Abstract: An electrode suitable as chlorine-evolving anode in electrolytic cells and a method for obtaining thereof is provided. The electrode has a metal substrate coated with a catalytic composition made of thin layers based on oxides of tin, iridium and ruthenium and combines excellent characteristics of anodic potential and selectivity with respect to the reaction of chlorine evolution without resorting to the use of dopants such as platinum and palladium.Type: GrantFiled: November 23, 2015Date of Patent: March 18, 2025Assignee: INDUSTRIE DE NORA S.P.A.Inventors: Alice Gargiulo, Alice Calderara, Chiara Pezzoni
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Patent number: 12241168Abstract: An electrode, having a catalytic coating containing ruthenium and at least one other element selected from the group of alkaline earth metals, suitable to be used in industrial electrochemical processes for hydrogen evolution and to a method for the production of the same. The catalytic coating has 93-99 wt-% of ruthenium and 1-7 wt-% of alkaline earth metals, referred to the metals.Type: GrantFiled: October 27, 2020Date of Patent: March 4, 2025Assignee: INDUSTRIE DE NORA S.P.A.Inventors: Alice Calderara, Luciano Iacopetti
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Patent number: 12195365Abstract: 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: GrantFiled: March 13, 2019Date of Patent: January 14, 2025Assignee: INDUSTRIE DE NORA S.P.A.Inventors: Anna Ramunni, Fabio Timpano
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Patent number: 11643746Abstract: An electrode for electrolytic processes, in particular to an anode suitable for oxygen evolution having 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 is particularly suitable for processes of cathodic electrodeposition of chromium from an aqueous solution containing Cr (III).Type: GrantFiled: June 29, 2021Date of Patent: May 9, 2023Assignee: INDUSTRIE DE NORA S.P.A.Inventors: Alice Calderara, Luciano Iacopetti, Fabio Timpano
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Patent number: 11634827Abstract: An electrode suitable for chlorine evolution in electrolysis cells consists of a metal substrate coated with two distinct compositions applied in alternate layers, the former comprising oxides of iridium, ruthenium and valve metals, for instance tantalum, and the latter comprising oxides of iridium, ruthenium and tin. The thus-obtained electrode couples excellent characteristics of anodic potential and selectivity towards the chlorine evolution reaction.Type: GrantFiled: November 25, 2011Date of Patent: April 25, 2023Assignee: INDUSTRIE DE NORA S.P.A.Inventors: Christian Urgeghe, Chiara Pezzoni, Antonio Lorenzo Antozzi
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Patent number: 11421332Abstract: 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: GrantFiled: November 8, 2013Date of Patent: August 23, 2022Assignee: INDUSTRIE DE NORA S.P.A.Inventor: Andrea Francesco Gulla
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Patent number: 11365136Abstract: 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: GrantFiled: September 11, 2019Date of Patent: June 21, 2022Assignee: INDUSTRIE DE NORA S.P.A.Inventors: Anna Ramunni, Fabio Timpano
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Patent number: 11208728Abstract: 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: GrantFiled: July 15, 2014Date of Patent: December 28, 2021Assignee: INDUSTRIE DE NORA S.P.AInventor: Julia Lynne Krasovic
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Patent number: 11180388Abstract: 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: GrantFiled: October 31, 2017Date of Patent: November 23, 2021Assignee: INDUSTRIE DE NORA S.P.A.Inventors: Dana Casbeer, Rubin Bariya, Sehul Patel, Rudolf Matousek, Thomas Reeves
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Patent number: 11136684Abstract: 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: GrantFiled: March 8, 2017Date of Patent: October 5, 2021Assignee: INDUSTRIE DE NORA S.P.A.Inventors: Alessandro Fiorucci, Michele Perego, Paolo Perrone, Corrado Mojana
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Patent number: 11098415Abstract: 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: GrantFiled: November 29, 2013Date of Patent: August 24, 2021Assignee: INDUSTRIE DE NORA S.P.A.Inventors: Alice Calderara, Luciano Iacopetti, Fabio Timpano
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Patent number: 11001935Abstract: 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: GrantFiled: June 22, 2012Date of Patent: May 11, 2021Assignee: INDUSTRIE DE NORA S.P.A.Inventors: Fabio Timpano, Alice Calderara
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Patent number: 10988850Abstract: 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: GrantFiled: December 5, 2017Date of Patent: April 27, 2021Assignee: INDUSTRIE DE NORA S.P.A.Inventors: Mariachiara Benedetto, Elena Carminati
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Patent number: 10968526Abstract: 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: GrantFiled: October 15, 2013Date of Patent: April 6, 2021Assignee: INDUSTRIE DE NORA S.P.A.Inventors: Luciano Iacopetti, Antonio Lorenzo Antozzi
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Patent number: 10883184Abstract: 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: GrantFiled: March 27, 2013Date of Patent: January 5, 2021Assignee: INDUSTRIE DE NORA S.P.A.Inventors: Luciano Iacopetti, Giovanni Meneghini, Gaetano Porcino, Giuseppe Faita
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Patent number: 10655236Abstract: 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: GrantFiled: June 30, 2016Date of Patent: May 19, 2020Assignee: INDUSTRIE DE NORA S.P.A.Inventor: Felix Prado Pueo
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Patent number: 10626278Abstract: 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: GrantFiled: December 21, 2016Date of Patent: April 21, 2020Assignee: INDUSTRIE DE NORA S.P.A.Inventors: Alice Calderara, Valentina Bonometti
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Patent number: 10590546Abstract: 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: GrantFiled: July 17, 2015Date of Patent: March 17, 2020Assignee: INDUSTRIE DE NORA S.P.A.Inventor: Kenneth L. Hardee
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Patent number: 10590554Abstract: 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: GrantFiled: April 26, 2017Date of Patent: March 17, 2020Assignee: INDUSTRIE DE NORA S.P.A.Inventor: Felix Prado Pueo
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Publication number: 20190338147Abstract: 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: ApplicationFiled: December 21, 2016Publication date: November 7, 2019Applicant: Industrie de Nora S.p.A.Inventors: Alice CALDERARA, Valentina BONOMETTI