Patents Assigned to Verdegaal Bros. Fertilizer
  • Process for making liquid fertilizer
    Patent number: 4310343
    Abstract: A new improved process for making liquid fertilizer having a high nitrogen and sulfur content has been developed in which urea and sulfuric acid are mixed. Exothermic heat, which normally builds up in successive reactions is dissipated via use of a non-reactive, nutritive heat sink, preferably comprising a predetermined amount of previously produced fertilizer.
    Type: Grant
    Filed: November 27, 1979
    Date of Patent: January 12, 1982
    Assignee: Verdegaal Bros. Fertilizer
    Inventors: William J. Verdegaal, George F. Verdegaal