Patents Issued in December 21, 1974
  • Process for the catalytic synthesis of ammonia
    Patent number: 3998932
    Abstract: A catalytic process and apparatus for synthesizing ammonia wherein from 30 to 80% of the effluent gases containing at least 12 molar percent ammonia are recycled to the inlet of the catalyst bed.
    Type: Grant
    Filed: February 28, 1975
    Date of Patent: December 21, 1974
    Assignee: Montedison Fibre S.p.A.
    Inventors: Amilcare Collina, Emanuele Malfatti, Antonio Cappelli