Patents Assigned to Fini Enterprises, Inc.
  • Process for making liquid ferric sulfate
    Patent number: 4814158
    Abstract: A process for the production of liquid ferric sulfate from finely-divided ferric oxide, sulfuric acid and water in a closed reaction vessel at temperatures ranging from about 130.degree. C. to about 150.degree. C. and pressures from about 30 psi to about 40 psi. The reaction time ranges from four to eight hours and produces liquid ferric sulfate having at least 10% trivalent iron.
    Type: Grant
    Filed: January 28, 1988
    Date of Patent: March 21, 1989
    Assignee: Fini Enterprises, Inc.
    Inventor: N. Rooke Everill