Patents by Inventor Christian Urgeghe
Christian Urgeghe has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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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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Publication number: 20180187318Abstract: An electrode for electrochemical generation of hypochlorite is provided. The electrode has a valve metal substrate coated with a catalytic system consisting of two superimposed layers of distinct composition and having a different activity towards hypochlorite anodic generation from chloride solutions. The electrode has a high duration in cathodic operation conditions, imparting self-cleaning characteristics thereto when used in combination with an equivalent one with periodic polarity reversal. Moreover, the deactivation of the electrode at the end of its life cycle occurs in two subsequent steps, allowing to schedule the substitution thereof with a significant notice period.Type: ApplicationFiled: January 29, 2018Publication date: July 5, 2018Inventors: Antonio Lorenzo Antozzi, Mariachiara Benedetto, Alice Calderara, Chiara Pezzoni, Christian Urgeghe
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Patent number: 9090982Abstract: 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: GrantFiled: March 22, 2012Date of Patent: July 28, 2015Assignee: INDUSTRIE DE NORA S.P.A.Inventors: Christian Urgeghe, Stefania Mora, Antonio Lorenzo Antozzi
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Publication number: 20150096896Abstract: 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: ApplicationFiled: May 16, 2013Publication date: April 9, 2015Applicant: INDUSTRIE DE NORA S.P.A.Inventors: Andrea Francesco Gullà, Chiara Pezzoni, Christian Urgeghe
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Publication number: 20130228450Abstract: The invention relates to an electrode for evolution of gaseous products in electrolysis cells comprising e metal substrate coated with at least two catalytic compositions, the outermost catalytic composition being deposited by means of chemical or physical phase vapour deposition technique and having a composition comprising noble metals selected from the group of platinum group metals or oxides thereof.Type: ApplicationFiled: December 21, 2011Publication date: September 5, 2013Applicant: INDUSTRIE DE NORA S.p.A.Inventors: Christian Urgeghe, Antonio Lorenzo Antozzi
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Publication number: 20130186750Abstract: 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: ApplicationFiled: November 25, 2011Publication date: July 25, 2013Applicant: INDUSTRIE DE NORA S.P.A.Inventors: Christian Urgeghe, Chiara Pezzoni, Antonio Lorenzo Antozzi
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Publication number: 20130087450Abstract: The invention relates to an electrode for electrochemical generation of hypochlorite. The electrode comprises a valve metal substrate coated with a catalytic system consisting of two super-imposed layers of distinct composition and having a different activity towards hypochlorite anodic generation from chloride solutions. The electrode has a high duration in cathodic operation conditions, imparting self-cleaning characteristics thereto when used in combination with an equivalent one with periodic polarity reversal. Moreover, the deactivation of the electrode at the end of its life cycle occurs in two subsequent steps, allowing to schedule the substitution thereof with a significant notice period.Type: ApplicationFiled: June 17, 2011Publication date: April 11, 2013Applicant: Industrie De Nora S.p.A.Inventors: Antonio Lorenzo Antozzi, Mariachiara Benedetto, Alice Calderara, Chiara Pezzoni, Christian Urgeghe
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Patent number: 8366890Abstract: The invention relates to an electrode formulation comprising a catalytic layer containing tin, ruthenium, iridium, palladium and niobium oxides applied to a titanium or other valve metal substrate. A protective layer based on titanium oxide modified with oxides of other elements such as tantalum, niobium or bismuth may be interposed between the substrate and the catalytic layer. The thus obtained electrode is suitable for use as an anode in electrolysis cells for chlorine production.Type: GrantFiled: May 12, 2011Date of Patent: February 5, 2013Assignee: Industrie de Nora S.p.A.Inventors: Christian Urgeghe, Alexander Morozov, Alice Calderara, Dino Floriano Di Franco, Antonio Lorenzo Antozzi
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Publication number: 20120175270Abstract: 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 vapour deposition of a ruthenium or ruthenium oxide layer.Type: ApplicationFiled: March 22, 2012Publication date: July 12, 2012Applicant: Industrie De Nora S.p.A.Inventors: Christian Urgeghe, Stefania Mora, Antonio Lorenzo Antozzi
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Publication number: 20120164344Abstract: The invention relates to a method of manufacturing of metal electrodes for electrolytic applications by means of a continuous deposition of a layer of noble metals upon metal substrates by a physical vapour deposition technique.Type: ApplicationFiled: March 6, 2012Publication date: June 28, 2012Applicant: Industrie De Nora S.p.A.Inventors: Antonio Lorenzo Antozzi, Andrea Francesco Gullá, Luciano Iacopetti, Gian Nicola Martelli, Enrico Ramunni, Christian Urgeghe
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Publication number: 20110209992Abstract: The invention relates to an electrode formulation comprising a catalytic layer containing tin, ruthenium, iridium, palladium and niobium oxides applied to a titanium or other valve metal substrate. A protective layer based on titanium oxide modified with oxides of other elements such as tantalum, niobium or bismuth may be interposed between the substrate and the catalytic layer. The thus obtained electrode is suitable for use as an anode in electrolysis cells for chlorine production.Type: ApplicationFiled: May 12, 2011Publication date: September 1, 2011Applicant: Industrie De Nora S.p.A.Inventors: Christian Urgeghe, Alexander Morozov, Alice Calderara, Dino Floriano Di Franco, Antonio Lorenzo Antozzi
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Patent number: 7972484Abstract: The invention relates to a gas-diffusion electrode for chlor-alkali electrolysis cells integrated in a percolator of plastic porous material suitable for being vertically crossed by a downward flow of electrolyte. The electrode comprises a catalytic composition based on silver and/or nickel mixed to a polymeric binder, directly supported on the percolator without any interposed reticulated metal current collector.Type: GrantFiled: October 10, 2008Date of Patent: July 5, 2011Assignee: Industrie De Nora S.p.A.Inventors: Christian Urgeghe, Fulvio Federico
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Patent number: 7943020Abstract: The invention relates to a cathode for electrolytic processes, particularly suitable for hydrogen evolution in chlor-alkali electrolysis, consisting of a nickel substrate provided with a coating comprising a protective zone containing palladium and a physically distinct catalytic activation containing platinum or ruthenium optionally mixed with a highly oxidizing metal oxide, preferably chromium or praseodymium oxide.Type: GrantFiled: April 13, 2009Date of Patent: May 17, 2011Assignee: Industries de Nora S.p.A.Inventors: Antonio Lorenzo Antozzi, Claudia Jennifer Bargioni, Alice Calderara, Luciano Iacopetti, Gian Nicola Martelli, Christian Urgeghe
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Publication number: 20090194411Abstract: The invention relates to a cathode for electrolytic processes, particularly suitable for hydrogen evolution in chlor-alkali electrolysis, consisting of a nickel substrate provided with a coating comprising a protective zone containing palladium and a physically distinct catalytic activation containing platinum or ruthenium optionally mixed with a highly oxidising metal oxide, preferably chromium or praseodymium oxide.Type: ApplicationFiled: April 13, 2009Publication date: August 6, 2009Applicant: Industrie De Nora S.p.A.Inventors: Antonio Lorenzo ANTOZZI, Claudia Jennifer BARGIONI, Alice CALDERARA, Luciano IACOPETTI, Gian Nicola MARTELLI, Christian URGEGHE
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Publication number: 20090035615Abstract: The invention relates to a gas-diffusion electrode for chlor-alkali electrolysis cells integrated in a percolator of plastic porous material suitable for being vertically crossed by a downward flow of electrolyte. The electrode comprises a catalytic composition based on silver and/or nickel mixed to a polymeric binder, directly supported on the percolator without any interposed reticulated metal current collector.Type: ApplicationFiled: October 10, 2008Publication date: February 5, 2009Applicant: Industrie De Nori S.p. A.Inventors: Christian Urgeghe, Fulvio Federico
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Patent number: 7407591Abstract: Process for the reduction of a hexavalent chromium oxide based catalyst comprising contacting, under mixing conditions, a hexavalent chromium oxide based catalyst, with a molar excess, in respect of the chromium species, of a solid reducing agent and subjecting the mixture to a temperature in the range 30-1000° C. The process is simple, involves low costs and allows to obtain a permanently reduced chromium catalyst that can be disposed without toxicity risks.Type: GrantFiled: April 21, 2005Date of Patent: August 5, 2008Assignee: Basell Polyolefine GmbHInventors: Achille De Battisti, Pier Luigi Di Federico, Dinara Iantilina, Christian Urgeghe
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Publication number: 20070219085Abstract: Process for the reduction of a hexavalent chromium oxide based catalyst comprising contacting, under mixing conditions, a hexavalent chromium oxide based catalyst, with a molar excess, in respect of the chromium species, of a solid reducing agent and subjecting the mixture to a temperature in the range 30-1000 C.°. The process is simple, involves low costs and allows to obtain a permanently reduced chromium catalyst that can be disposed without toxicity risks.Type: ApplicationFiled: April 21, 2005Publication date: September 20, 2007Applicant: Basell Polyolefine GmbHInventors: Achille De Battisti, Pier Di Federico, Dinara Iantilina, Christian Urgeghe