Patents by Inventor Neil P. Dawson

Neil P. Dawson 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).

  • Process for recovering heavy minerals from oil sand tailings
    Patent number: 7695612
    Abstract: A process is provided for recovering heavy minerals from aqueous oil sand tailings, the oil sand tailings having heavy minerals, other coarse solids such as silica, fines, residual bitumen and water, including desliming the oil sand tailings in a desliming means by removing a portion of free fines and residual bitumen from the oil sand tailings; attritioning the oil sand tailings in an attritioner to remove adhered fines and residual bitumen from the heavy minerals and other coarse solids; and subjecting the deslimed and attritioned tailings to separation in a separation means to separate the heavy minerals from the other coarse solids present in the deslimed and attritioned tailings and produce a concentrated heavy minerals fraction.
    Type: Grant
    Filed: May 25, 2006
    Date of Patent: April 13, 2010
    Assignee: Titanium Corporation Inc.
    Inventors: Daniel E. Erasmus, Neil P. Dawson, Francis Chachula
  • PROCESS FOR RECOVERING HEAVY MINERALS FROM OIL SAND TAILINGS
    Publication number: 20070272596
    Abstract: A process is provided for recovering heavy minerals from aqueous oil sand tailings, the oil sand tailings having heavy minerals, other coarse solids such as silica, fines, residual bitumen and water, including desliming the oil sand tailings in a desliming means by removing a portion of free fines and residual bitumen from the oil sand tailings; attritioning the oil sand tailings in an attritioner to remove adhered fines and residual bitumen from the heavy minerals and other coarse solids; and subjecting the deslimed and attritioned tailings to separation in a separation means to separate the heavy minerals from the other coarse solids present in the deslimed and attritioned tailings and produce a concentrated heavy minerals fraction.
    Type: Application
    Filed: May 25, 2006
    Publication date: November 29, 2007
    Applicant: TITANIUM CORPORATION INC.
    Inventors: DANIEL E. ERASMUS, NEIL P. DAWSON, FRANCIS CHACHULA