Patents by Inventor Giuseppe Paparatto

Giuseppe Paparatto 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).

  • Patent number: 6284213
    Abstract: 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: Grant
    Filed: August 3, 1999
    Date of Patent: September 4, 2001
    Assignee: Enichem S.p.A.
    Inventors: Giuseppe Paparatto, Rino D'Aloisio, Giordano De Alberti, Piero Furlan, Vittorio Arca, Roberto Buzzoni, Laura Meda
  • Patent number: 4894478
    Abstract: The invention relates to a process of producing ketoximes, characterized in that a secondary alcohol, corresponding to the desired ketoxime, is partially oxidated in the liquid phase with O.sub.2, an oxidated mixture being thereby formed, which contains an excess of unreacted alcohol, the ketone corresponding to said alcohol, and H.sub.2 O.sub.2, and that said oxidated mixture is directly reacted with NH.sub.3 in the liquid phase (without isolating the alcohol, the ketone and H.sub.2 O.sub.2) in the presence of an ammoximation catalyst.
    Type: Grant
    Filed: July 25, 1988
    Date of Patent: January 16, 1990
    Assignee: Montedipe S.p.A.
    Inventors: Paolo Roffia, Giuseppe Paparatto, Alberto Cesana, Giorgio Tauszik
  • Patent number: 4857295
    Abstract: A process for the manufacture of iodine, in the presence of a catalyst selected from copper, gold, a transition metal or a compound thereof, characterized in that an aqueous solution of an alkali metal iodide is oxidized--with oxygen, air or other oxygen containing gase--in the presence of carbon dioxide (an alkali metal carbonate and/or bicarbonate being thus formed).Iodine is generally obtained by oxidation of alkali metal iodides comping from a natural source, such as those contained in Chilean nitrates or in other salt deposits (sea-water included), or having an industrial origin; in the latter case the alkali metal iodide is generally the effluent of different processes which contemplate iodine recovery for economic reasons.
    Type: Grant
    Filed: July 15, 1988
    Date of Patent: August 15, 1989
    Assignee: Montedipe S.p.A.
    Inventors: Giuseppe Paparatto, Guglielmo Gregorio
  • Patent number: 4822929
    Abstract: The invention concerns a process for the catalytic trans-halogenation of a poly-iodo-benzene, wherein said poly-iodo-benzene is made to react with benzene and with oxygen, in the presence of a zeolite of the PENTASIL type, exchanged with a metal of the II, III or IV group of the periodical system and anyway present in forms different from the acidic form.
    Type: Grant
    Filed: August 5, 1987
    Date of Patent: April 18, 1989
    Assignee: Montedipe S.p.A.
    Inventor: Giuseppe Paparatto
  • Patent number: 4808759
    Abstract: The invention concerns a process for the catalytic trans-halogenation of a poly-iodo-benzene, wherein said poly-iodo-benzene is made to react with benzene and with oxygen, in the presence of a zeolite of the X type or of the Y type, exchanged with an alkali metal, with thallium or with a rare earth and anyway present in a form different from the acidic form.
    Type: Grant
    Filed: August 5, 1987
    Date of Patent: February 28, 1989
    Assignee: Montedipe S.p.A.
    Inventor: Giuseppe Paparatto
  • Patent number: 4788353
    Abstract: A method for the synthesis of iodobenzene by oxydative iodination in a gaseous phase of benzene with iodine and oxygen, air or another gas containing oxygen, in the presence of a zeolitic catalyst, selected from the group comprising the zeolites of ZSM 5 and ZSM 11 type.
    Type: Grant
    Filed: March 4, 1987
    Date of Patent: November 29, 1988
    Assignee: Montedipe S.p.A.
    Inventors: Giuseppe Paparatto, Marco Saetti
  • Patent number: 4788354
    Abstract: A method for the synthesis of iodobenzene by iodination, in the gaseous phase, of benzene with iodine, in the presence of a zeolitic catalyst, selected from the group comprising the zeolites of X type or of Y type, characterized in that said iodination is an oxidative one and that said zeolites are in a form different from the acid (H) form.
    Type: Grant
    Filed: February 27, 1987
    Date of Patent: November 29, 1988
    Assignee: Montedipe S.p.A.
    Inventors: Giuseppe Paparatto, Marco Saetti
  • Patent number: 4684749
    Abstract: A process for the synthesis of phenol by means of a hydrolysis of iodobenzene in the liquid phase and in the presence of a Cu containing catalyst, carried out at 120.degree.-260.degree. C. in the presence of a basic acidity acceptor, selected from the group consisting of alkali metal hydroxides and alkali metal salts coming from inorganic or organic acids, showing a pK.sub.a equal to or higher than 4.5.
    Type: Grant
    Filed: May 27, 1986
    Date of Patent: August 4, 1987
    Assignee: Montedipe S.p.A.
    Inventor: Giuseppe Paparatto
  • Patent number: 4442301
    Abstract: A process for stereospecifically synthesizing lower alkyl esters of the cis-2,2-dimethyl-3-(.beta.-fluoro-.beta.-trifluoromethyl-vinyl)-cyclopropa necarboxylic acid.
    Type: Grant
    Filed: June 29, 1981
    Date of Patent: April 10, 1984
    Assignee: Montedison S.p.A.
    Inventors: Franco Gozzo, Giuseppe Caprara, Lamberto Roberti, Giuseppe Paparatto, Ettore Santoro