Patents Assigned to Sued-Chemie Catalysts Italia S.R.L.
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Patent number: 10092895Abstract: A process for removing nitrogen protoxide from gas mixtures which 5 contain it, comprising contacting with a catalyst which contains mixed oxides of copper, manganese and rare earth metals in an amount expressed as percentage by weight of CuO, MnO and rare earth metal oxide in the lowest state of valency of 20-45% CuO, 50-60% MnO, and 5-20% rare earth metal oxide.Type: GrantFiled: December 6, 2016Date of Patent: October 9, 2018Assignee: SUED-CHEMIE CATALYSTS ITALIA S.R.L.Inventors: Alberto Cremona, Edoardo Vogna
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Patent number: 8815767Abstract: Mixed oxides catalysts usable in particular in the full oxidation to CO2 and H2O of volatile organic compounds (VOC), in the decomposition of nitrogen protoxide to nitrogen and oxygen and the combustion of CO, H2 and CH4 off gases in fuel cells, comprising oxides of manganese, copper and La2O3 and/or Nd2O3, having a percentage composition by weight expressed as MnO, CuO, La2O3 and/or Nd2O3 respectively of 35-56%, 19-31% and 20-37%. The oxides are supported on inert porous inorganic oxides, preferably alumina.Type: GrantFiled: November 4, 2009Date of Patent: August 26, 2014Assignee: Sued-Chemie Catalysts Italia S.R.L.Inventors: Alberto Cremona, Marvin Estenfelder, Edoardo Vogna
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Patent number: 8513470Abstract: A process for the fixed bed oxidation of methanol to formaldehyde wherein the bed comprises at least two layers having different catalytic activity, wherein the layer of lower activity is comprised in the part of the bed from which the reactant gas mixture enters and its activity is calibrated so that the maximum hot spot temperature in the layer is comprised between 350° C. and 430° C. and is higher than the maximum hot spot temperature of the layer of greater activity formed by pure catalyst, and wherein during the period in which the situation of the maximum hot spot temperature of the layer of lower activity remains at the values cited above, the conversion of methanol is higher than 96% by mols.Type: GrantFiled: December 18, 2009Date of Patent: August 20, 2013Assignee: Süd-Chemie, Catalysts Italia S.r.l.Inventors: Marvin Estenfelder, Roberto Zaino
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Publication number: 20130164494Abstract: Ammonia oxidation catalyst units comprising a pair of honeycomb-type blocks having interplaced between them a layer of a gas permeable material performing the function of radially mixing the gas flow, said blocks comprising an ammonia oxidation catalysts, and having height of less than 15 cm and the interplaced layer height of 3 to 0.5 cm.Type: ApplicationFiled: February 19, 2013Publication date: June 27, 2013Applicant: SUED-CHEMIE CATALYSTS ITALIA S.R.L.Inventors: Marvin ESTENFELDER, Alberto CREMONA
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Patent number: 8435917Abstract: Ammonia oxidation catalyst units comprising a pair of honeycomb-type blocks having interplaced between them a layer of a gas permeable material performing the function of radially mixing the gas flow, said blocks comprising an ammonia oxidation catalysts, and having height of less than 15 cm and the interplaced layer height of 3 to 0.5 cm.Type: GrantFiled: December 17, 2009Date of Patent: May 7, 2013Assignee: Sued-Chemie Catalysts Italia S.R.L.Inventors: Marvin Estenfelder, Alberto Cremona
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Patent number: 8216960Abstract: Catalyst for the fixed bed oxychlorination of ethylene to 1,2-dichloroethane in form of hollow cylindrical granules having total pore volume from 0.4 to 0.55 ml/g prevailingly formed of micro and mesopores having diameter between 7 and 50 nm, wherein the mesopores constitute the major component, and the macropores having diameter of more than 50 nm up to 10,000 nm being present by 15-35%.Type: GrantFiled: December 18, 2009Date of Patent: July 10, 2012Assignee: Sued-Chemie Catalysts Italia S.R.L.Inventors: Carlo Orsenigo, Francesco Casagrande, Marco Civati
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Publication number: 20110269998Abstract: A process for the fixed bed oxidation of methanol to formaldehyde wherein the bed comprises at least two layers having different catalytic activity, wherein the layer of lower activity is comprised in the part of the bed from which the reactant gas mixture enters and its activity is calibrated so that the maximum hot spot temperature in the layer is comprised between 350° C. and 430° C. and is higher than the maximum hot spot temperature of the layer of greater activity formed by pure catalyst, and wherein during the period in which the situation of the maximum hot spot temperature of the layer of lower activity remains at the values cited above, the conversion of methanol is higher than 96% by mols.Type: ApplicationFiled: December 18, 2009Publication date: November 3, 2011Applicant: SUED-CHEMIE CATALYSTS ITALIA S.R.L.Inventors: Marvin Estenfelder, Roberto Zaino
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Publication number: 20100160697Abstract: Catalyst for the fixed bed oxychlorination of ethylene to 1.2-dichloroethane in form of hollow cylindrical granules having total pore volume from 0.4 to 0.55 ml/g prevailingly formed of micro and mesopores having diameter between 7 and 50 nm, wherein the mesopores constitute the major component, and the macropores having diameter of more than 50 nm up to 10.000 nm being present by 15-35%.Type: ApplicationFiled: December 18, 2009Publication date: June 24, 2010Applicant: SUED-CHEMIE CATALYSTS ITALIA S.R.L.Inventors: Carlo ORSENIGO, Francesco CASAGRANDE, Marco CIVATI
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Publication number: 20100158784Abstract: Ammonia oxidation catalyst units comprising a pair of honeycomb-type blocks having interplaced between them a layer of a gas permeable material performing the function of radially mixing the gas flow, said blocks comprising an ammonia oxidation catalysts, and having height of less than 15 cm and the interplaced layer height of 3 to 0.5 cm.Type: ApplicationFiled: December 17, 2009Publication date: June 24, 2010Applicant: SUED-CHEMIE CATALYSTS ITALIA S.R.L.Inventors: Marvin ESTENFELDER, Alberto CREMONA
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Publication number: 20100152505Abstract: Catalysts for the oxychlorination of ethylene to 1.2-dichloroethane, in form of hollow granules having definite geometrical configuration and pore volume distribution with at least 20% of the total volume formed of macropores wherein the diameter of the pores at the maximum of the macropore distribution curve is higher than 800 nm and up to 1500 nm.Type: ApplicationFiled: November 23, 2009Publication date: June 17, 2010Applicant: SUED-CHEMIE CATALYSTS ITALIA S.R.L.Inventors: Carlo ORSENIGO, Francesco CASAGRANDE, Marco CIVATI
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Publication number: 20100111795Abstract: Mixed oxides catalysts usable in particular in the full oxidation to CO2 and H2O of volatile organic compounds (VOC), in the decomposition of nitrogen protoxide to nitrogen and oxygen and the combustion of CO, H2 and CH4 off gases in fuel cells, comprising oxides of manganese, copper and La2O3 and/or Nd2O3, having a percentage composition by weight expressed as MnO, CuO, La2O3 and/or Nd2O3 respectively of 35-56%, 19-31% and 20-37%. The oxides are supported on inert porous inorganic oxides, preferably alumina.Type: ApplicationFiled: November 4, 2009Publication date: May 6, 2010Applicant: SUED-CHEMIE CATALYSTS ITALIA S.R.L.Inventors: Alberto CREMONA, Marvin ESTENFELDER, Edoardo VOGNA