Patents by Inventor Rino D'Aloisio
Rino D'Aloisio 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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Publication number: 20100210483Abstract: Process for the solubilization of polymeric material deposited on a porous medium, which comprises putting said polymeric material in contact with an aqueous composition comprising: (a) a catalyst selected from: (a1) a complex having general formula (I), Fe++(L)n(Y)s, L being a binder selected from those having general formula (II), wherein X?CH, N, (a2) a hydrosoluble cobalt2+ salt, preferably cobalt acetate; (b) an oxidizing agent selected from: (b1) hydrogen peroxide, (b2) MHSO5, wherein M is an alkaline metal, preferably potassium; with the constraint that the catalyst (a1) can only be used in the presence of the oxidizing agent (b1) and the catalyst (a2) can only be used in the presence of the catalyst (b2).Type: ApplicationFiled: July 28, 2006Publication date: August 19, 2010Applicants: ENI S.p.A., POLIMERI EUROPA S.p.A.Inventors: Rino D'Aloisio, Daniele Bianchi, Marco Ricci, Rossella Bortolo, Roberto Tassinari, Cristina Tonini, Sandra Cobianco
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Patent number: 7122501Abstract: 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: GrantFiled: March 26, 2003Date of Patent: October 17, 2006Assignees: Eni S.p.A., Enichem S.p.A.Inventors: Giuseppe Paparatto, Rino D'Aloisio, Giordano De Alberti, Roberto Buzzoni
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Patent number: 7105142Abstract: A process is described for the production of hydrogen peroxide from hydrogen and oxygen in a reaction solvent containing a halogenated promoter and/or an acid promoter, in the presence of a heterogeneous catalyst based on one or more metals of the platinum group, wherein the reaction solvent consists of: (1) an alcohol or mixture of alcohols; (2) an aliphatic ether having general formula (I); and (3) optionally water. The solvent mixture may also contain one or more C5–C32 hydrocarbons. The process operates under high safety conditions with a high productivity and molar selectivity towards the formation of H2O2.Type: GrantFiled: April 29, 2002Date of Patent: September 12, 2006Assignees: Eni S.p.A., Polimeri Europa S.p.A.Inventors: Giuseppe Paparatto, Giordano De Alberti, Rino D'Aloisio
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Patent number: 7101526Abstract: 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: GrantFiled: July 30, 2002Date of Patent: September 5, 2006Assignees: ENI S.p.A., Polimeri Europa S.p.A.Inventors: Giuseppe Paparatto, Giordano De Alberti, Rino D'Aloisio, Roberto Buzzoni
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Patent number: 7038093Abstract: 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: GrantFiled: November 20, 2003Date of Patent: May 2, 2006Assignee: Polimeri Europa S.p.A.Inventors: Daniele Bianchi, Rossella Bortolo, Roberto Buzzoni, Alberto Cesana, Leonardo Dalloro, Rino D'Aloisio
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Patent number: 6888013Abstract: The present invention relates to an integrated process for the preparation in continuous of epoxides which comprises: (a) preparing an alcoholic or hydro-alcoholic solution of hydrogen peroxide in a concentration of over 3% by weight, using a gaseous stream containing hydrogen, oxygen and an inert gas, in the presence of a bimetallic catalyst based on palladium and platinum as active components; (b) putting the alcoholic or hydro-alcoholic solution of hydrogen peroxide obtained in step (a) in contact with an olefin and a buffering agent, in the presence of an epoxidation catalyst suspended in the reaction solvent, in order to obtain a reaction mixture containing the epoxide corresponding to the olefin, water and alcoholic solvent; (c) treating the alcoholic stream leaving step (b), after separation of the epoxide, in order to eliminate the nitrogenated compounds present; (d) feeding the alcoholic solvent obtained in (c) to step (a).Type: GrantFiled: August 6, 2001Date of Patent: May 3, 2005Assignee: Polimeri Europa S.p.A.Inventors: Giuseppe Paparatto, Anna Forlin, Giordano De Alberti, Rino D'Aloisio, Paolo Tegon
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Publication number: 20040184983Abstract: 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: ApplicationFiled: January 30, 2004Publication date: September 23, 2004Inventors: Giuseppe Paparatto, Giordano De Alberti, Rino D'Aloisio, Roberto Buzzoni
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Publication number: 20040151660Abstract: A process is described for the production of hydrogen peroxide from hydrogen and oxygen in a reaction solvent containing a halogenated promoter and/or an acid promoter, in the presence of a heterogeneous catalyst based on one or more metals of the platinum group, wherein the reaction solvent consists of: (1) an alcohol or mixture of alcohols; (2) an aliphatic ether having general formula (1); and (3) optionally water. The solvent mixture may also contain one or more C5-C32 hydrocarbons. The process operates under high safety conditions with a high productivity and molar selectivity towards the formation of H2O2.Type: ApplicationFiled: April 6, 2004Publication date: August 5, 2004Inventors: Giuseppe Paparatto, Giordano de Alberti, Rino D'Aloisio
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Publication number: 20040151659Abstract: A process is described for the production of hydrogen peroxide from hydrogen and oxygen in a reaction solvent containing a halogenated promoter and/or an acid promoter, in the presence of a heterogeneous catalyst based on one or more metals of the platinum group, wherein the reaction solvent consists of: (1) an alcohol or mixture of alcohols; (2) one or more C5-C32 hydrocarbons; and (3) optionally water. The process operates under high safety conditions with a high productivity and molar selectivity towards the formation of H2O2.Type: ApplicationFiled: March 31, 2004Publication date: August 5, 2004Inventors: Giuseppe Paparatto, Giordano De Alberti, Rino D'Aloisio
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Publication number: 20040122264Abstract: The invention relates to a process for the preparation of phenol comprising the following phases:Type: ApplicationFiled: November 20, 2003Publication date: June 24, 2004Applicant: POLIMERI EUROPA S.p.A.Inventors: Daniele Bianchi, Rossella Bortolo, Roberto Buzzoni, Alberto Cesana, Leonardo Dalloro, Rino D'Aloisio
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Publication number: 20040054200Abstract: The present invention relates to an integrated process for the preparation in continuous of epoxides which comprises: (a) preparing an alcoholic or hydro-alcoholic solution of hydrogen peroxide in a concentration of over 3% by weight, using a gaseous stream containing hydrogen, oxygen and an inert gas, in the presence of a bimetallic catalyst based on palladium and platinum as active components; (b) putting the alcoholic or hydro-alcoholic solution of hydrogen peroxide obtained in step (a) in contact with an olefin and a buffering agent, in the presence of an epoxidation catalyst suspended in the reaction solvent, in order to obtain a reaction mixture containing the epoxide corresponding to the olefin, water and alcoholic solvent; (c) treating the alcoholic stream leaving step (b), after separation of the epoxide, in order to eliminate the nitrogenated compounds present; (d) feeding the alcoholic solvent obtained in (c) to step (a).Type: ApplicationFiled: September 25, 2003Publication date: March 18, 2004Inventors: Giuseppe Paparatto, Anna Forlin, Giordano De Alberti, Rino D'Aloisio, Paolo Tegon
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Patent number: 6630118Abstract: 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: GrantFiled: June 1, 2001Date of Patent: October 7, 2003Assignees: Eni S.p.A., Enichem S.p.A.Inventors: Giuseppe Paparatto, Rino D'Aloisio, Giordano De Alberti, Roberto Buzzoni
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Publication number: 20030162657Abstract: 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: ApplicationFiled: March 26, 2003Publication date: August 28, 2003Applicant: ENI S.p.A.Inventors: Giuseppe Paparatto, Rino D'Aloisio, Giordano De Alberti, Roberto Buzzoni
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Patent number: 6541648Abstract: The present invention relates to an integrated process for the preparation in continuous of epoxides which comprises: (a) preparing an alcoholic or hydro-alcoholic solution of hydrogen peroxide in a concentration of over 3% by weight, using a gaseous stream containing hydrogen, oxygen and an inert gas, in the presence of a bimetallic catalyst based on palladium and platinum as active components; (b) putting the alcoholic or hydro-alcoholic solution of hydrogen peroxide obtained in step (a) in contact with an olefin and a buffering agent, in the presence of an epoxidation catalyst suspended in the reaction solvent, in order to obtain a reaction mixture containing the epoxide corresponding to the olefin, water and the alcoholic solvent; (c) treating the alcoholic stream leaving step (b), after separation of the epoxide, in order to eliminate the nitrogenated compounds present; (d) feeding the alcoholic solvent obtained in (c) to step (a).Type: GrantFiled: June 26, 2002Date of Patent: April 1, 2003Assignee: Polimeri Europa S.r.l.Inventors: Giuseppe Paparatto, Anna Forlin, Giordano De Alberti, Rino D'Aloisio, Paolo Tegon
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Publication number: 20020028174Abstract: 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: ApplicationFiled: June 1, 2001Publication date: March 7, 2002Applicant: ENI S.p.A.Inventors: Giuseppe Paparatto, Rino D' Aloisio, Giordano De Alberti, Roberto Buzzoni
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Patent number: 6284213Abstract: The present invention relates to a catalyst consisting of a metal of the VIII group supported on acid activated carbon functionalized with sulfonic groups, a process for the synthesis of hydrogen peroxide from hydrogen and oxygen which uses said catalyst and the use of the hydrogen peroxide solution in oxidation processes catalyzed by titanium-silicalite.Type: GrantFiled: August 3, 1999Date of Patent: September 4, 2001Assignee: Enichem S.p.A.Inventors: Giuseppe Paparatto, Rino D'Aloisio, Giordano De Alberti, Piero Furlan, Vittorio Arca, Roberto Buzzoni, Laura Meda
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Patent number: 5783164Abstract: A process is described for the preparation of hydrogen peroxide by the reaction of carbon monoxide, oxygen and water in an organic solvent immiscible with water, in the presence of a catalytic complex soluble in the organic solvent, deriving from the combination of a palladium salt, a non-coordinating organic or inorganic acid and a ligand capable of binding itself to the palladium atom, characterized in that said ligand is a mono or polydentate nitrogenated compound.Type: GrantFiled: April 21, 1997Date of Patent: July 21, 1998Assignee: Enichem S.p.A.Inventors: Daniele Bianchi, Rossella Bortolo, Rino D'Aloisio, Marco Ricci, Sergio Soattini
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Patent number: 5324849Abstract: Disclosed is a class of compounds based on tungsten and diphosphonic acids, which contain active oxygen atoms and cationic groups deriving from onium salts.Also disclosed is the method for preparing and using said class of compounds for olefin oxidation and diol and acid oxidation reactions.Type: GrantFiled: December 22, 1992Date of Patent: June 28, 1994Assignee: Enichem S.P.A.Inventors: Stefanio Bonsignore, Rino D'Aloisio, Paolo Soncini, Carlo Venturello
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Patent number: 5026911Abstract: The invention relates to a process for preparing oximes starting from saturated primary (cyclo)aliphatic amines optionally substituted by groups which are inert under the reaction conditions, by reacting the saturated primary amine with oxygen, the reaction being conducted in the liquid phase in the presence of at least a catalyst based on compounds belonging to Group IV B of the Periodic System, thereby obtaining the corresponding aliphatic and cycloaliphatic oximes.Type: GrantFiled: April 25, 1990Date of Patent: June 25, 1991Assignee: Istituto Guido Donegani S.p.A.Inventors: Carlo Venturello, Rino D'Aloisio
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Patent number: 4866178Abstract: A process for the preparation of 2-carboxpyrazine 4-oxides having the formula (I) ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3, which may be the same or different, represent a hydrogen atom or an alkyl group having from 1 to 6 carbon atoms, by oxidation of the corresponding 2-carboxypyrazines. The 2-carboxypyrazines are reacted under stirring with an aqueous solution of H.sub.2 O.sub.2, at a pH ranging between 0.5 and 5, in the presence of a catalyst selected from the group consisting of tungstic acid, a isopolytungstic acid, a heteropolytungstic acid, molybdic acid, an isopolymolybidic acid, a heteropolymolybdic acid, and an alkali metal salt thereof.Type: GrantFiled: February 5, 1988Date of Patent: September 12, 1989Assignee: Montedison S.p.A.Inventors: Carlo Venturello, Rino D'Aloisio