Patents by Inventor Angela Janet Murray

Angela Janet Murray has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Platinum group metal recovery from powdery waste
    Patent number: 8662310
    Abstract: The invention relates to a method for increasing the concentration of platinum group metals in urban waste material. The method comprises obtaining particles of urban waste material; screening the particles of urban waste material by size,—selecting particles of urban waste material that lie within a defined size range; and processing the selected particles using at least one physical or chemical technique whereby to increase the concentration of platinum group metals to at least 5 ppm. The invention also relates to an apparatus for increasing the concentration of platinum group metals in particulate urban waste material. The apparatus comprises: a drying unit (4), a particle size screening unit (5); and one or more processing units for effecting platinum group metal concentration of the particulate urban waste material by physical and/or chemical techniques, in particular a magnetic separation unit (7) and a froth flotation cell (9).
    Type: Grant
    Filed: March 25, 2010
    Date of Patent: March 4, 2014
    Assignee: The University of Birmingham
    Inventor: Angela Janet Murray
  • Platinum Group Metal Recovery From Powdery Waste
    Publication number: 20120000832
    Abstract: The invention relates to a method for increasing the concentration of platinum group metals in urban waste material. The method comprises obtaining particles of urban waste material; screening the particles of urban waste material by size, selecting particles of urban waste material that lie within a defined size range; and processing the selected particles using at least one physical or chemical technique whereby to increase the concentration of platinum group metals to at least 5 ppm. The invention also relates to an apparatus for increasing the concentration of platinum group metals in particulate urban waste material. The apparatus comprises: a drying unit (4), a particle size screening unit (5); and one or more processing units for effecting platinum group metal concentration of the particulate urban waste material by physical and/or chemical techniques, in particular a magnetic separation unit (7) and a froth flotation cell (9).
    Type: Application
    Filed: March 25, 2010
    Publication date: January 5, 2012
    Inventor: Angela Janet Murray