Patents Assigned to I.S.O.
  • Water soluble complex fertilizers, method for their preparation and related use
    Patent number: 6733560
    Abstract: The present invention relates to a method for the preparation of a complex NPK fertilizer in the form of granules or prills, and to a method for its preparation and to the related use of the fertilizer thereby obtained. In particular the present invention relates to a fertilizer containing as fertilizing elements Nitrogen N, Phosphor P, Potassium K, meso elements like Calcium Ca, Magnesium Mg, Sulphur S, and micro elements like Iron Fe, Manganese Mn, Zinc Zn, Copper Cu, Boron B and Molybdenum Mo.
    Type: Grant
    Filed: June 29, 2001
    Date of Patent: May 11, 2004
    Assignee: S.I.S.O. Societá Industria Sequestranti Organici Srl
    Inventor: Nicola Sabatini
  • Process for the manufacture of calcium chloride
    Patent number: 4299809
    Abstract: A process for the production of calcium chloride by the reaction of hydrochloric acid with calcium carbonate in the upper sealed portion of a reactor bordered on one side by a filtration sieve. The process comprises reacting the hydrochloric acid with the calcium carbonate to form carbon dioxide and calcium chloride solution, and pressuring the solution of calcium chloride by means of the carbon dioxide across the sieve and towards an outlet of the reactor.
    Type: Grant
    Filed: January 14, 1980
    Date of Patent: November 10, 1981
    Assignee: I.S.O.
    Inventors: Gerard Teyssier, Marcel Lepant