Patents Assigned to Halomet, Incorporated
  • Separation of high grade magnetite from fly ash
    Patent number: 4432868
    Abstract: A unique, high-grade magnetite obtained from fly ash, the use thereof in the cleaning of coal, and low iron content fly ash.
    Type: Grant
    Filed: October 5, 1981
    Date of Patent: February 21, 1984
    Assignee: Halomet, Incorporated
    Inventor: Robert G. Aldrich
  • Separation of high grade magnetite from fly ash
    Patent number: 4319988
    Abstract: A unique, high-grade magnetite obtained from fly ash, the use thereof in the cleaning of coal, and low iron content fly ash.
    Type: Grant
    Filed: May 5, 1980
    Date of Patent: March 16, 1982
    Assignee: Halomet, Incorporated
    Inventor: Robert G. Aldrich
  • Separation of high grade magnetite from fly ash
    Patent number: RE31540
    Abstract: A unique, high-grade magnetite obtained from fly ash, the use thereof in the cleaning of coal, and low iron content fly ash.
    Type: Grant
    Filed: May 26, 1982
    Date of Patent: March 20, 1984
    Assignee: Halomet, Incorporated
    Inventor: Robert G. Aldrich