Patents Assigned to Societa Italiana Serie Acetica Sintetica S.p.A.
  • 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