Patents Assigned to N.Y. Patent Development Corp.
  • Method for removing oil from water with an absorbent
    Patent number: 4551253
    Abstract: Disclosed herein is an absorbent, particularly useful for the sorption of oil or other petroleum-based products contaminating a body of water. The absorbent is prepared by subjecting sulphite reject from a paper mill process, or a combination of sulphite reject and sulphate reject from a paper mill process, to rapid forced heating at a temperature effective to gasify moisture in the starting material and the cause the starting material to expand or burst.
    Type: Grant
    Filed: January 20, 1984
    Date of Patent: November 5, 1985
    Assignee: N.Y. Patent Development Corp.
    Inventor: Bo Grenthe