Patents by Inventor Paolo Gronchi

Paolo Gronchi 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).

  • Procedure for preparing silica from calcium silicate
    Patent number: 6716408
    Abstract: This invention concerns a procedure for preparing amorphous silica from calcium silicate and CO2, with formation and separation of precipitate CaCO3.
    Type: Grant
    Filed: July 31, 2001
    Date of Patent: April 6, 2004
    Assignee: Italcementi S.p.A.
    Inventors: Paolo Gronchi, Tiziana De Marco, Luigi Cassar
  • Process for the oxidation of unsaturated aliphatic hydrocarbons
    Patent number: 4420634
    Abstract: The invention relates to a process for the oxidation of unsaturated hydrocarbons, particularly butenes and isobutylene, for the production of acetic acid, propionic acid and acetone. Specifically the invention comprises the highly selective oxidation of an unsaturated hydrocarbon or of a mixture of unsaturated hydrocarbons in the presence of a catalyst consisting of a complex of trivalent cobalt and of a carbonyl compound, of the aldehydic or ketonic type.
    Type: Grant
    Filed: December 8, 1980
    Date of Patent: December 13, 1983
    Inventors: Franco Codignola, Paolo Gronchi, Renato del Rosso, Paolo Centola
  • Process for the preparation of 1,4-butynediol and related catalyst
    Patent number: 4288641
    Abstract: The process for the preparation of 1,4-butynediol through the reaction of acetylene with formaldehyde in the presence of a catalytic metal, preferably copper, is improved by using, as the support of the catalytic metal, a molecular sieve or synthetic zeolite to which the catalytic metal is chemically bonded through an ion exchange reaction.There are obtained increased production rates and selectivity and the polymer of acetylene, namely cuprene, is essentially prevented from being formed.
    Type: Grant
    Filed: October 17, 1979
    Date of Patent: September 8, 1981
    Assignee: Societa Italiana Serie Acetica Sintetica S.p.A.
    Inventors: Franco Codignola, Giorgio Vergini, Paolo Gronchi, Paolo Centola