Patents by Inventor Roberto Buzzoni

Roberto Buzzoni 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).

  • Publication number: 20070267324
    Abstract: The invention relates to a process for the production of linear alkanes, containing less than 6? carbon atoms, from a mix comprising one or more hydrocarbons containing at least 6 carbon atoms. The process uses a catalytic composition comprising particular combinations of a Y-type zeolite, at least one element selected from Zn, Mo, Cu, Ga, In, W, Ta, Zr, Ti, metals of Group VIII and optionally one or more lanthanides.
    Type: Application
    Filed: February 4, 2005
    Publication date: November 22, 2007
    Applicant: Polimeri Europa S. p. A.
    Inventors: Leonardo Dalloro, Alberto Cesana, Roberto Buzzoni, Franco Rivetti
  • Publication number: 20070173644
    Abstract: The present invention relates to a process for the preparation of zeolitic catalysts of the MFI type in spheroidal form. The process consists in emulsifying and consolidating in paraffinic hydrocarbons, in the presence of a non-ionic surface-active agent or a suitable combination of a non-ionic surface-active agent and a cationic surface-active agent, a dispersion of particles of zeolitic material of the MFI type in a silica sol.
    Type: Application
    Filed: March 29, 2007
    Publication date: July 26, 2007
    Applicant: POLIMERI EUROPA S.p.A.
    Inventors: Luigi Balducci, Leonardo Dalloro, Alberto Cesana, Roberto Buzzoni
  • Patent number: 7214637
    Abstract: The present invention relates to a process for the preparation of zeolitic catalysts of the MFI type in spheroidal form. The process consists in emulsifying and consolidating in paraffinic hydrocarbons, in the presence of a non-ionic surface-active agent or a suitable combination of a non-ionic surface-active agent and a cationic surface-active agent, a dispersion of particles of zeolitic material of the MFI type in a silica sol.
    Type: Grant
    Filed: September 21, 2004
    Date of Patent: May 8, 2007
    Assignee: Polimeri Europa S.p.A.
    Inventors: Luigi Balducci, Leonardo Dalloro, Alberto Cesana, Roberto Buzzoni
  • Patent number: 7122501
    Abstract: A description follows of a bimetallic catalyst, obtained by dispersing in sequence and alternating the precursors of the single metal components of the catalyst on a carrier, and a process for the synthesis of hydrogen peroxide by the direct reaction of hydrogen with oxygen, in a solvent medium containing a halogenated promoter and an acid promoter, in the presence of said catalyst.
    Type: Grant
    Filed: March 26, 2003
    Date of Patent: October 17, 2006
    Assignees: Eni S.p.A., Enichem S.p.A.
    Inventors: Giuseppe Paparatto, Rino D'Aloisio, Giordano De Alberti, Roberto Buzzoni
  • Patent number: 7101526
    Abstract: The present invention relates to a catalyst consisting of: (a) one or more metals of the platinum group as active components; (b) one or more polyolefins; and (c) a carrier. The invention also relates to a process for the synthesis of hydrogen peroxide (H2O2) from hydrogen and oxygen which uses said catalyst and the use of the hydrogen peroxide solution in oxidation processes catalyzed by titanium silicalite. The process operates under high safety conditions with a high productivity and molar selectivity towards the formation of H2O2.
    Type: Grant
    Filed: July 30, 2002
    Date of Patent: September 5, 2006
    Assignees: ENI S.p.A., Polimeri Europa S.p.A.
    Inventors: Giuseppe Paparatto, Giordano De Alberti, Rino D'Aloisio, Roberto Buzzoni
  • Patent number: 7038093
    Abstract: The invention relates to a process for the preparation of phenol comprising the following phases: 1) preparation in continuous of phenol by means of the direct oxidation of benzene with hydrogen peroxide operating with an H2O2/benzene ratio ranging from 10 to 70%, in a three-phase reaction system comprising a first liquid phase consisting of benzene and an organic solvent, a second liquid phase consisting of water, a solid phase consisting of an activated catalyst based on titanium silicalite TS-1; 2) separation of the phenol and non-reacted benzene from the reaction mixture of the oxidation section (1), by means of fractionated distillation; 3) separation of the solvent and by-products from the mixture coming from the distillation tail (2), by means of basic extraction; 4) transformation of the by-products obtain in section (3) to phenol by means of hydrodeoxygenation with hydrogen operating in continuous, in aqueous solution, at a temperature ranging from 250 to 500° C.
    Type: Grant
    Filed: November 20, 2003
    Date of Patent: May 2, 2006
    Assignee: Polimeri Europa S.p.A.
    Inventors: Daniele Bianchi, Rossella Bortolo, Roberto Buzzoni, Alberto Cesana, Leonardo Dalloro, Rino D'Aloisio
  • Patent number: 6949687
    Abstract: A process is described for the contemporaneous preparation of mesitylene and durene, characterized in that mesitylene and durene are obtained exclusively starting from pseudo-cumene without the use of any further chemical compound, operating in continuous, at a temperature ranging from 210 to 400° C., at a pressure ranging from 1 to 50 bar, with a weight space velocity ranging from 0.1 to 20 hours?1 and in the presence of a catalyst based on crystalline metal-silicates in acid form. After the recovery of mesitylene and durene from the reaction raw product, some of the remaining components of the raw product itself are recycled and fed to the reactor together with the pseudo-cumene.
    Type: Grant
    Filed: December 17, 2003
    Date of Patent: September 27, 2005
    Assignees: Polimeri Europa S.p.A., Enitecnologie S.p.A.
    Inventors: Leonardo Dalloro, Alberto Cesana, Roberto Buzzoni, Franco Rivetti, Caterina Rizzo, Virginio Arrigoni, Carlo Perego
  • Patent number: 6936738
    Abstract: A process is described for the preparation of phenol characterized in that the phenol is obtained by means of the hydrodeoxygenation of benzene-diols with hydrogen, operating in continuous, in an aqueous solution, at temperatures ranging from 250 to 500° C., at pressures of 1-100 bar and in the presence of a catalyst based on elements of group VIB or group VIII of the periodic table.
    Type: Grant
    Filed: October 14, 2003
    Date of Patent: August 30, 2005
    Assignees: ENI S.p.A., Polimeri Europa S.p.A.
    Inventors: Leonardo Dalloro, Alberto Cesana, Roberto Buzzoni, Franco Rivetti
  • Publication number: 20050032630
    Abstract: The present invention relates to a process for the preparation of zeolitic catalysts of the MFI type in spheroidal form. The process consists in emulsifying and consolidating in paraffinic hydrocarbons, in the presence of a non-ionic surface-active agent or a suitable combination of a non-ionic surface-active agent and a cationic surface-active agent, a dispersion of particles of zeolitic material of the MFI type in a silica sol.
    Type: Application
    Filed: September 21, 2004
    Publication date: February 10, 2005
    Applicant: POLIMERI EUROPA S.p.A.
    Inventors: Luigi Balducci, Leonardo Dalloro, Alberto Cesana, Roberto Buzzoni
  • Patent number: 6838406
    Abstract: The present invention relates to a process for the preparation of zeolitic catalysts of the MFI type in spheroidal form. The process consists in emulsifying and consolidating in paraffinic hydrocarbons, in the presence of a non-ionic surface-active agent or a suitable combination of a non-ionic surface-active agent and a cationic surface-active agent, a dispersion of particles of zeolitic material of the MFI type in a silica sol.
    Type: Grant
    Filed: November 18, 2002
    Date of Patent: January 4, 2005
    Assignee: Polimeri Europa S.p.A.
    Inventors: Luigi Balducci, Leonardo Dalloro, Alberto Cesana, Roberto Buzzoni
  • Publication number: 20040225170
    Abstract: A process is described for the synthesis of mesitylene, characterized in that mesitylene is obtained starting exclusively from pseudocumene, without the use of any other chemical compound, operating in continuous, at a temperature ranging from 225 to 400° C., at a pressure ranging from 1 to 50 bar, at a weight space velocity ranging from 0.1 to 10 hours−1, and in the presence of a catalyst containing a zeolite selected from ZSM-5 zeolite having a crystal lattice based on silicon oxide and aluminum oxide, and ZSM-5 zeolite modified by the partial or total substitution of Si with a tetravalent element such as Ti or Ge and/or the partial or total substitution of Al with other trivalent elements, such as Fe, Ga or B.
    Type: Application
    Filed: February 26, 2004
    Publication date: November 11, 2004
    Applicants: POLIMERI EUROPA S.p.A., ENITECNOLOGIE S.p.A.
    Inventors: Leonardo Dalloro, Alberto Cesana, Roberto Buzzoni, Franco Rivetti, Giovanni Antonio Fois, Caterina Rizzo, Virginio Arrigoni
  • Publication number: 20040184983
    Abstract: The present invention relates to a catalyst consisting of: (a) one or more metals of the platinum group as active components; (b) one or more polyolefins; and (c) a carrier. The invention also relates to a process for the synthesis of hydrogen peroxide (H2O2) from hydrogen and oxygen which uses said catalyst and the use of the hydrogen peroxide solution in oxidation processes catalyzed by titanium silicalite. The process operates under high safety conditions with a high productivity and molar selectivity towards the formation of H2O2.
    Type: Application
    Filed: January 30, 2004
    Publication date: September 23, 2004
    Inventors: Giuseppe Paparatto, Giordano De Alberti, Rino D'Aloisio, Roberto Buzzoni
  • Publication number: 20040127762
    Abstract: A process is described for the contemporaneous preparation of mesitylene and durene, characterized in that mesitylene and durene are obtained exclusively starting from pseudo-cumene without the use of any further chemical compound, operating in continuous, at a temperature ranging from 210 to 400° C., at a pressure ranging from 1 to 50 bar, with a weight space velocity ranging from 0.1 to 20 hours−1 and in the presence of a catalyst based on crystalline metal-silicates in acid form. After the recovery of mesitylene and durene from the reaction raw product, some of the remaining components of the raw product itself are recycled and fed to the reactor together with the pseudo-cumene.
    Type: Application
    Filed: December 17, 2003
    Publication date: July 1, 2004
    Applicants: POLIMERI EUROPA S.p.A., ENITECNOLOGIE S.p.A.
    Inventors: Leonardo Dalloro, Alberto Cesana, Roberto Buzzoni, Franco Rivetti, Caterina Rizzo, Virginio Arrigoni, Carlo Perego
  • Publication number: 20040122264
    Abstract: The invention relates to a process for the preparation of phenol comprising the following phases:
    Type: Application
    Filed: November 20, 2003
    Publication date: June 24, 2004
    Applicant: POLIMERI EUROPA S.p.A.
    Inventors: Daniele Bianchi, Rossella Bortolo, Roberto Buzzoni, Alberto Cesana, Leonardo Dalloro, Rino D'Aloisio
  • Publication number: 20040077906
    Abstract: A process is described for the preparation of phenol characterized in that the phenol is obtained by means of the hydrodeoxygenation of benzene-diols with hydrogen, operating in continuous, in an aqueous solution, at temperatures ranging from 250 to 500° C., at pressures of 1-100 bar and in the presence of a catalyst based on elements of group VIB or group VIII of the periodic table.
    Type: Application
    Filed: October 14, 2003
    Publication date: April 22, 2004
    Applicants: ENI S.p.A., POLIMERI EUROPA S.p.A.
    Inventors: Leonardo Dalloro, Alberto Cesana, Roberto Buzzoni, Franco Rivetti
  • Patent number: 6645899
    Abstract: The present invention relates to a method for the removal of the templating agent from synthetic zeolites in general and in particular from silicalite, titanium silicalite and from composite materials containing zeolites and for their activation as catalysts. The method consists in treating the above materials with solvents in vapor phase and at a low temperature.
    Type: Grant
    Filed: November 15, 2000
    Date of Patent: November 11, 2003
    Assignee: Enichem S.p.A.
    Inventors: Stefano Palmery, Fausto Genoni, Guido Spano′, Leonardo Dalloro, Alberto Cesana, Roberto Buzzoni
  • Patent number: 6630118
    Abstract: A bimetallic catalyst is obtained by dispersing, in sequence and alternating, the precursors of the single metal components of the catalyst on a carrier. A process for the synthesis of hydrogen peroxide by the direct reaction of hydrogen with oxygen, in a solvent medium containing a halogenated promoter and an acid promoter, in the presence of the bimetallic catalyst.
    Type: Grant
    Filed: June 1, 2001
    Date of Patent: October 7, 2003
    Assignees: Eni S.p.A., Enichem S.p.A.
    Inventors: Giuseppe Paparatto, Rino D'Aloisio, Giordano De Alberti, Roberto Buzzoni
  • Publication number: 20030162657
    Abstract: A description follows of a bimetallic catalyst, obtained by dispersing in sequence and alternating the precursors of the single metal components of the catalyst on a carrier, and a process for the synthesis of hydrogen peroxide by the direct reaction of hydrogen with oxygen, in a solvent medium containing a halogenated promoter and an acid promoter, in the presence of said catalyst.
    Type: Application
    Filed: March 26, 2003
    Publication date: August 28, 2003
    Applicant: ENI S.p.A.
    Inventors: Giuseppe Paparatto, Rino D'Aloisio, Giordano De Alberti, Roberto Buzzoni
  • Publication number: 20030125545
    Abstract: The present invention relates to a process for the preparation of zeolitic catalysts of the MFI type in spheroidal form.
    Type: Application
    Filed: November 18, 2002
    Publication date: July 3, 2003
    Applicant: POLIMERI EUROPA S.p.A.
    Inventors: Luigi Balducci, Leonardo Dalloro, Alberto Cesana, Roberto Buzzoni
  • Publication number: 20020028174
    Abstract: A description follows of a bimetallic catalyst, obtained by dispersing in sequence and alternating the precursors of the single metal components of the catalyst on a carrier, and a process for the synthesis of hydrogen peroxide by the direct reaction of hydrogen with oxygen, in a solvent medium containing a halogenated promoter and an acid promoter, in the presence of said catalyst.
    Type: Application
    Filed: June 1, 2001
    Publication date: March 7, 2002
    Applicant: ENI S.p.A.
    Inventors: Giuseppe Paparatto, Rino D' Aloisio, Giordano De Alberti, Roberto Buzzoni