Patents by Inventor Angela Carati
Angela Carati 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: 8110692Abstract: The present invention relates to new organic-inorganic hybrid silicates and metal-silicates called ECS, characterized by an X-ray powder diffraction pattern with reflections exclusively at angular values higher than 4.0° of 2?, preferably at angular values higher than 4.7°, and an ordered structure containing structural units having formula (a) wherein R is an organic group: Formula (a) and possibly containing one or more elements T selected from groups III B, IV B, V B and transition metals, with a Si/(Si +T) molar ratio in said structure higher than 0.3 and lower than or equal to 1, wherein Si is the silicon contained in the structural unit (a). A process is also described, starting from disilanes, for the preparation of these materials, which does not include the use of templates or surfactants. These materials can be used as molecular sieves, adsorbents, in the field of catalysis, in the field of electronics, in the field of sensors, in the field of nanotechnologies.Type: GrantFiled: August 3, 2007Date of Patent: February 7, 2012Assignee: ENI S.p.A.Inventors: Giuseppe Bellussi, Angela Carati, Caterina Rizzo, Urbano Diaz Morales, Stefano Zanardi, Wallace O'Neil Parker, Roberto Millini
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Patent number: 8030238Abstract: The present invention relates to a new zeolite having a beta-type crystalline structure, characterized by a distribution of the Lewis acid sites and Brønsted acid sites corresponding to a molar ratio [Lewis sites] [Brønsted sites] equal to or higher than 1.5. This new zeolite is useful in preparation processes of alkylated aromatic hydrocarbons through the alkylation and/or transalkylation of aromatic compounds. The preparation method of the new zeolite is also object of the present invention.Type: GrantFiled: June 21, 2005Date of Patent: October 4, 2011Assignees: Polimeri Europa S.p.A., Eni S.p.A.Inventors: Guido Spano′, Stefano Ramello, Gianni Girotti, Franco Rivetti, Angela Carati
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Publication number: 20110139677Abstract: Catalytic system which can be used in processes for the hydroconversion of heavy oils by means of hydrotreatment in slurry phase, characterized in that it comprises: a catalyst, having the function of hydrogenating agent, containing MoS2 or WS2 or mixtures thereof in lamellar form or an oil-soluble precursor thereof; a co-catalyst, having nanometric or micronic particle-sizes, selected from cracking and/or denitrogenation catalysts. The co-catalyst preferably consists of zeolites having small-sized crystals and with a low aggregation degree between the primary particles, and/or oxides or sulfides or precursors of sulfides of Ni and/or Co in a mixture with Mo and/or W.Type: ApplicationFiled: June 8, 2009Publication date: June 16, 2011Applicant: ENI S.P.A.Inventors: Giuseppe Bellussi, Giacomo Rispoli, Angela Carati
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Publication number: 20100331576Abstract: The invention relates to a new process which allows the preparation of TS-1 zeolites in a pure phase and with a crystallinity higher than 95%, operating at reduced reaction volumes, and obtaining high productivities and extremely high crystallization yields. The particular crystalline form of the TS-1 zeolite thus prepared, is also described.Type: ApplicationFiled: December 3, 2008Publication date: December 30, 2010Applicant: POLIMERI EUROPA S.P.A.Inventors: Angela Carati, Donatella Berti, Roberto Millini, Franco Rivetti, Angela Maria Mantegazza, Gianni Girotti
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Publication number: 20100191009Abstract: The present invention relates to new organic-inorganic hybrid silicates and metal-silicates called ECS, characterized by an X-ray powder diffraction pattern with reflections exclusively at angular values higher than 4.0° of 2?, preferably at angular values higher than 4.7°, and an ordered structure containing structural units having formula (a) wherein R is an organic group: Formula (a) and possibly containing one or more elements T selected from groups III B, IV B, V B and transition metals, with a Si/(Si+T) molar ratio in said structure higher than 0.3 and lower than or equal to 1, wherein Si is the silicon contained in the structural unit (a). A process is also described, starting from disilanes, for the preparation of these materials, which does not include the use of templates or surfactants. These materials can be used as molecular sieves, adsorbents, in the field of catalysis, in the field of electronics, in the field of sensors, in the field of nanotechnologies.Type: ApplicationFiled: August 3, 2007Publication date: July 29, 2010Applicant: ENI S.P.A.Inventors: Giuseppe Bellussi, Angela Carati, Caterina Rizzo, Urbano Diaz Morales, Stefano Zanardi, Wallace O'Neil Parker, Roberto Millini
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Publication number: 20090288557Abstract: The present invention relates to a process for the separation of gases which comprises putting a mixture of gases in contact with a zeolite of the ESV type to obtain the selective adsorption of at least one of the gases forming the gaseous mixture. The present invention also relates to particular zeolitic compositions suitable as adsorbents.Type: ApplicationFiled: June 19, 2007Publication date: November 26, 2009Applicant: ENI S.P.A.Inventors: Angela Carati, Caterina Rizzo, Marco Tagliabue, Luciano Cosimo Carluccio, Cristina Flego, Liberato Giampaolo Ciccarelli
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Patent number: 7419930Abstract: The present invention regards a catalytic composition comprising gallium, at least one element chosen in the group of the lanthanides, and a zeolite belonging to the MFI, MEL or MFI/MEL families, the crystal lattice of which is made up of silicon oxide and at least one metal oxide chosen from among aluminum oxide, boron oxide and gallium oxide. Preferably, in the catalytic compositions of the present invention a zeolite is used belonging to the MFI family characterized by crystallites which for at least 90% have diameters smaller than 500 ? and which can form agglomerates of submicron dimensions characterized by possessing at least 30% of the extrazeolitic porosity in the region of the mesopores. The catalytic compositions of the present invention can, in addition, contain rhenium. These catalytic compositions are useful in processes of aromatization of hydrocarbons containing from 3 to 6 carbon atoms, preferably, hydrocarbon mixtures containing olefins.Type: GrantFiled: October 24, 2006Date of Patent: September 2, 2008Assignees: Eni S.p.A., Enichem S.p.A., Enitecnologie S.p.A.Inventors: Angela Carati, Marco Tagliabue, Carlo Perego, Roberto Millini, Stefano Amarilli, Giuseppe Terzoni
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Publication number: 20080035529Abstract: A process is described for the upgrading of distillates having a boiling point ranging from 100 to 450° C., which comprises the opening of the ring of the naphthene compounds contained in these distillates to obtain paraffinic compounds, rich in branched paraffins, having for the most part the same number of carbon atoms as the starting naphthene. The process is carried out in the presence of a bifunctional catalytic system comprising one or more metals selected from Pt, Pd, Ir, Ru, Rh and Re, and a silico-aluminate of an acidic nature, selected from a micromesoporous silico-alumina and a zeolite belonging to the MTW group.Type: ApplicationFiled: April 19, 2005Publication date: February 14, 2008Applicant: ENI S.P.A.Inventors: Vincenzo Calemma, Angela Carati
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Publication number: 20070276173Abstract: The present invention relates to a new zeolite having a beta-type crystalline structure, characterized by a distribution of the Lewis acid sites and Brønsted acid sites corresponding to a molar ratio [Lewis sites] [Brønsted sites] equal to or higher than 1.5. This new zeolite is useful in preparation processes of alkylated aromatic hydrocarbons through the alkylation and/or transalkylation of aromatic compounds. The preparation method of the new zeolite is also object of the present invention.Type: ApplicationFiled: June 21, 2005Publication date: November 29, 2007Applicants: Polimer Europa S.p.A., ENI S.P.A.Inventors: Guido Spano', Stefano Ramello, Gianni Girotti, Franco Rivetti, Angela Carati
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Publication number: 20070042899Abstract: The present invention regards a catalytic composition comprising gallium, at least one element chosen in the group of the lanthanides, and a zeolite belonging to the MFI, MEL or MFI/MEL families, the crystal lattice of which is made up of silicon oxide and at least one metal oxide chosen from among aluminum oxide, boron oxide and gallium oxide. Preferably, in the catalytic compositions of the present invention a zeolite is used belonging to the MFI family characterized by crystallites which for at least 90% have diameters smaller than 500 ? and which can form agglomerates of submicron dimensions characterized by possessing at least 30% of the extrazeolitic porosity in the region of the mesopores. The catalytic compositions of the present invention can, in addition, contain rhenium. These catalytic compositions are useful in processes of aromatization of hydrocarbons containing from 3 to 6 carbon atoms, preferably, hydrocarbon mixtures containing olefins.Type: ApplicationFiled: October 24, 2006Publication date: February 22, 2007Applicants: ENI S.p.A., ENICHEM S.p.A., ENITECHNOLOGIE S.p.A.Inventors: Angela Carati, Marco Tagliabue, Carlo Perego, Roberto Millini, Stefano Amarilli, Giuseppe Terzoni
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Patent number: 7164052Abstract: Aromatic hydrocarbon compounds are produced by a process of contacting one or more aliphatic hydrocarbons containing from 3 to 6 carbon atoms with a catalytic composition comprising (i) gallium, (ii) at least one lanthanide element, and (iii) a zeolite selected from the group consisting of the MIF family of zeolites, the crystal lattice of which consists of silicon oxide and aluminum oxide in a molar ratio of silicon oxide to aluminum oxide which is greater than 20 and less than 500, and is comprised of crystallites, at least 90% of which have diameters smaller than 500 ?.Type: GrantFiled: February 13, 2004Date of Patent: January 16, 2007Assignees: ENI S.p.A., Enichem S.p.A., Enitecnologie S.p.A.Inventors: Angela Carati, Marco Tagliabue, Carlo Perego, Roberto Millini, Stefano Amarilli, Giuseppe Terzoni
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Patent number: 7074383Abstract: A process is described for the preparation of zeolitic catalysts in the form of microspheres, comprising zeolite and oligomeric silica, characterized by a high mechanical resistance. The process consists in subjecting to rapid drying the suspension, to which tetra-alkylorthosilicate is optionally added, resulting from the synthesis of zeolite by hydrothermal treatment at autogenous pressure of the reagent mixture containing tetra-alkylammoniumhydroxide as templating agent, and subjecting the product resulting from the drying to calcination.Type: GrantFiled: April 18, 2005Date of Patent: July 11, 2006Assignee: Enichem S.p.A.Inventors: Angela Carati, Giuseppe Bellussi, Maria Angela Mantegazza, Guido Petrini
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Patent number: 7018595Abstract: A process is described for the preparation of zeolitic catalysts in the form of microspheres, comprising zeolite and oligomeric silica, characterized by a high mechanical resistance. The process consists in subjecting to rapid drying the suspension, to which tetra-alkylorthosilicate is optionally added, resulting from the synthesis of zeolite by hydrothermal treatment at autogenous pressure of the reagent mixture containing tetra-alkylammoniumhydroxide as templating agent, and subjecting the product resulting from the drying to calcination.Type: GrantFiled: December 10, 2002Date of Patent: March 28, 2006Assignee: Enichem S.p.A.Inventors: Angela Carati, Giuseppe Bellussi, Maria Angela Mantegazza, Giudo Petrini
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Publication number: 20050187096Abstract: A process is described for the preparation of zeolitic catalysts in the form of microspheres, comprising zeolite and oligomeric silica, characterized by a high mechanical resistance. The process consists in subjecting to rapid drying the suspension, to which tetra-alkylorthosilicate is optionally added, resulting from the synthesis of zeolite by hydrothermal treatment at autogenous pressure of the reagent mixture containing tetra-alkylammoniumhydroxide as templating agent, and subjecting the product resulting from the drying to calcination.Type: ApplicationFiled: April 18, 2005Publication date: August 25, 2005Applicant: ENICHEM S.p.A.Inventors: Angela Carati, Giuseppe Bellussi, Maria Mantegazza, Giudo Petrini
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Patent number: 6924247Abstract: The object of the present invention relates to a simple, rapid and inexpensive process for effecting solid-liquid separations in the case of zeolites, also having small crystals. This process, which is particularly useful for the recovery of zeolite crystals in suspension in the crystallization water, comprises treating this suspension of crystals with an acid or one of its precursors and subjecting the resulting mixture to filtration or decanting. According to a particular aspect of the invention, the crystalline phase is separated in a mixture with oxides which can be used as ligands. Said oxides can be generated by the reagents of the zeolite preparation reagent mixture, not transformed into crystalline phase during the synthesis hydrothermal treatment, or they can be added to the suspension of crystals before the separation treatment, or again they can be generated by precursors suitably added to the crystallization slurry.Type: GrantFiled: December 14, 2001Date of Patent: August 2, 2005Assignees: Eni S.p.A., Enichem S.p.A., Enitecnologie S.p.A.Inventors: Angela Carati, Giannino Pazzuconi, Carlo Perego, Oscar Cappellazzo, Gianni Girotti
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Publication number: 20040236165Abstract: The present invention regards a catalytic composition comprising gallium, at least one element chosen in the group of the lanthanides, and a zeolite belonging to the MFI, MEL or MFI/MEL families, the crystal lattice of which is made up of silicon oxide and at least one metal oxide chosen from among aluminium oxide, boron oxide and gallium oxide. Preferably, in the catalytic compositions of the present invention a zeolite is used belonging to the MFI family characterized by crystallites which for at least 90% have diameters smaller than 500 Å and which can form agglomerates of submicron dimensions characterized by possessing at least 30% of the extrazeolitic porosity in the region of the mesopores.Type: ApplicationFiled: February 13, 2004Publication date: November 25, 2004Applicants: ENI S.p.A., ENICHEM S.p.A, ENITECHNOLOGIE S.p.A.Inventors: Angela Carati, Marco Tagliabue, Carlo Perego, Roberto Millini, Stefano Amarilli, Giuseppe Terzoni
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Patent number: 6734323Abstract: The present invention relates to a process for the preparation of zeolitic catalysts comprising zeolite and oligomeric silica, which can be used in industrial reactors. The process consists in directly mixing the suspension, resulting from the synthesis of the zeolite, with an oligomeric silica sol, obtained from the hydrolysis of a tetra-alkyl ortho silicate in the presence of tetra-alkylammonium hydroxide, and in subjecting the mixture to rapid drying, by feeding to a spray-dry.Type: GrantFiled: November 29, 2000Date of Patent: May 11, 2004Assignees: Enichem S.P.A., Enitecnologie S.P.A.Inventors: Giuseppe Botti, Angela Carati, Leonardo Dalloro
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Publication number: 20030083190Abstract: A process is described for the preparation of zeolitic catalysts in the form of microspheres, comprising zeolite and oligomeric silica, characterized by a high mechanical resistance. The process consists in subjecting to rapid drying the suspension, to which tetra-alkylorthosilicate is optionally added, resulting from the synthesis of zeolite by hydrothermal treatment at autogenous pressure of the reagent mixture containing tetra-alkylammoniumhydroxide as templating agent, and subjecting the product resulting from the drying to calcination.Type: ApplicationFiled: December 10, 2002Publication date: May 1, 2003Applicant: ENICHEM S.p.AInventors: Angela Carati, Giuseppe Bellussi, Maria Angela Mantegazza, Giudo Petrini
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Patent number: 6524984Abstract: A process is described for the preparation of zeolitic catalysts in the form of microspheres, comprising zeolite and oligomeric silica, characterized by a high mechanical resistance. The process consists in subjecting to rapid drying the suspension, to which tetra-alkylorthosilicate is optionally added, resulting from the synthesis of zeolite by hydrothermal treatment at autogenous pressure of the reagent mixture containing tetra-alkylammoniumhydroxide as templating agent, and subjecting the product resulting from the drying to calcination.Type: GrantFiled: September 24, 1998Date of Patent: February 25, 2003Assignee: Enichem S.p.A.Inventors: Angela Carati, Giuseppe Bellussi, Maria Angela Mantegazza, Giudo Petrini
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Patent number: 6495733Abstract: A superacid catalyst comprising: zirconium oxide on whose surface sulfate groups are present, in a quality corresponding to total coverage of the surface of the zirconium oxide by means of a monolayer of these sulfate groups, optionally containing a noble metal in a quantity ranging from 0.1 to 3% by weight, with a porosity ranging from 0.1 to 0.30 cm3/g, consisting of at least 70% of pores with a diameter ranging from 1 to 4 nm, prepared by a process which comprises: (a) hydrolyzing derivate of zirconium in a basic medium in the presence of a tetra-alkylammonium hydroxide (TAA), sulfuric acid and acetylacetone (AcAc); (b) drying the product of step (a) and calcining the dried material at a temperature ranging from 250 to 650° C. (c) optionally treating the product resulting from step (b) with an aqueous solution of a compound of a noble metal, and drying and calcining the treated product.Type: GrantFiled: October 31, 2000Date of Patent: December 17, 2002Assignees: AGIP Petroli S.p.A., Enitecnologie S.p.A.Inventors: Stefano Peratello, Angela Carati