Patents Assigned to Maryland Patent Development Co., Inc.
  • Magnetic separation of particulate mixtures
    Patent number: RE30360
    Abstract: Particulate mixtures of non-magnetic or paramagnetic materials are separated by selectively coating the surfaces of a component or components of the mixture with a magnetic fluid. Thereafter, the particulate mixture is subjected to a magnetic separation yielding a magnetic fluid-coated fraction and a non-magnetic fraction. The process is especially useful in mineral beneficiation wherein a mineral concentrate is recovered from its ore.
    Type: Grant
    Filed: December 14, 1977
    Date of Patent: August 5, 1980
    Assignee: Maryland Patent Development Co., Inc.
    Inventor: Roland H. Shubert