Patents Assigned to Incitec Ltd.
  • Zinc-ammonium phosphate fertilizers
    Patent number: 6322607
    Abstract: A process of obtaining a co-granulate of zinc and ammonium phosphate having a N/P ratio of 0.6-1.9 which includes initially feeding ammonium phosphate in finely divided form with a zinc source such as zinc oxide or zinc sulphate into a granulator wherein ammonia may also be fed into the granulator to increase the N/P ratio. The co-granulate is then obtained after drying.
    Type: Grant
    Filed: July 19, 1999
    Date of Patent: November 27, 2001
    Assignee: Incitec Ltd.
    Inventors: Anthony Martin Brown, Thomas Welsh, Christopher Wallace Dowling