Patents by Inventor Domenico Sanfilippo

Domenico Sanfilippo 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).

  • Integrated process for producing olefins from methane-containing gas mixtures
    Patent number: 5430219
    Abstract: Disclosed is an integrated process for producing olefins by starting from methane containing gas mixture, which process essentially comprises the following steps:converting methane into higher hydrocarbons by oxidative coupling carried out in the presence of air and/or oxygen;dehydrogenating, with the aid of a catalyst, said higher hydrocarbons, with an olefin-rich mixture being obtained;removing H.sub.2 O, CO.sub.2, CO and H.sub.2 from the resulting olefinic mixture;removing from said olefinic mixture any not converted methane, and recycling it upstream from the oxidating coupling;separating ethylene from the olefinic mixture;separating any not dehydrogenated ethane from the olefinic mixture.
    Type: Grant
    Filed: September 30, 1993
    Date of Patent: July 4, 1995
    Assignees: Snamprogetti S.p.A., Eniricerche S.p.A.
    Inventors: Domenico Sanfilippo, Stefano Rossini
  • Catalytic system and process for producing synthesis gas by reforming light hydrocarbons with CO.sub.2
    Patent number: 5336655
    Abstract: A catalytic system for the production of synthesis gas by reacting light hydrocarbons, preferably methane, with CO.sub.2 is described formed from:one or more compounds of metals of the platinum group, preferably chosen from rhodium, ruthenium and iridium;a support consisting of inorganic compounds chosen from oxides and/or spinels of aluminium, magnesium, zirconium, silicon, cerium and/or lanthanum, possibly in the presence of alkali metals,in which the weight percentage of the metal or metals of the platinum group in the catalytic system is between 0.01 and 20%, and preferably between 0.1 and 5%.
    Type: Grant
    Filed: June 2, 1992
    Date of Patent: August 9, 1994
    Assignee: Snamprogetti S.p.A.
    Inventors: Luca Basini, Mario Marchionna, Stephano Rossini, Domenico Sanfilippo
  • Catalytic system for converting methane into higher hydrocarbons
    Patent number: 5260497
    Abstract: A catalytic system for converting methane into higher hydrocarbons, which catalytic system falls within the scope of the following empirical formula:Aa Bb Cc Oxin which:A is an element selected from the group consisting of Si, Ti, Zr;B is an element selected from the group consisting of La, Sc, Y, andC is an alkali or alkali-earth metal, whereina is a numeral comprised within the range of from 0.01 to 10,b is a numeral comprised within the range of from 0.01 to 10,c is a numeral comprised within the range of from 0.01 to 10,X is a numeral which satisfies the valency state with which the several elements appear in the catalytic system,is disclosed.
    Type: Grant
    Filed: April 29, 1992
    Date of Patent: November 9, 1993
    Assignee: Snamprogetti S.p.A.
    Inventors: Stefano Rossini, Orfeo Forlani, Domenico Sanfilippo
  • Catalytic composition for the dehydrogenation of C.sub.2 -C.sub.5 paraffins
    Patent number: 5143886
    Abstract: A catalytic composition for the dehydrogenation of C.sub.2 -C.sub.5 paraffins, constituted by:platinum, in an amount comprised within the range of from 0.01 to 3% by weight,optionally tin, in an amount comprised within the range of from 0 to 1.5% by weight,a support selected from:titanated alumina,titanated silica and/ortitanium silicalitein which the titanium amount in the same support is comprised within the range of from 0.05 to 3% by weightis disclosed.
    Type: Grant
    Filed: February 5, 1991
    Date of Patent: September 1, 1992
    Assignee: Snamprogetti S.p.A.
    Inventors: Rodolfo Iezzi, Franco Buonomo, Domenico Sanfilippo
  • Method for the production of high-purity ethylene glycols
    Patent number: 4358625
    Abstract: A method is disclosed for obtaining high-purity ethylene glycols in which the improvement consists in reducing the oxygen-containing organic impurities by treating their aqueous solutions as obtained during the processing of ethylene oxide with a solution of an alkali metal borohydride, sodium borohydride being preferred.A definitely alkaline environment is preferred. Ethylene glycols can thus be obtained which are particularly suitable for use in the fibre-manufacturing industry. Such glycols have extremely low UV-absorbance values.
    Type: Grant
    Filed: March 9, 1979
    Date of Patent: November 9, 1982
    Assignee: Snamprogetti, S.p.A.
    Inventors: Alberto Paggini, Ugo Romano, Donato Furlone, Domenico Sanfilippo
  • Selective hydrogenation in gaseous phase of cyclopentadiene or a mixture of ethylene and acetylene using a palladium zinc catalyst deactivated with ammonia, ammonium chloride, steam, or their mixtures
    Patent number: 4112007
    Abstract: In a process for the selective hydrogenation of polyunsaturated compounds, by means of a catalyst system, the hydrogenation is carried out in gaseous phase in the presence of a catalyst of a metal of the eight group of the Periodical Table, partially deactivated by a deactivating system.
    Type: Grant
    Filed: May 21, 1976
    Date of Patent: September 5, 1978
    Assignee: ANIC S.p.A.
    Inventors: Domenico Sanfilippo, Morello Morelli