Patents Assigned to Her Majesty the Queen in right of the Province of Alberta, Department of, Education Energy and Natural Resources, Alberta Syncrude Equity
  • Recovery of hydrocarbon from dilution centrifuging tailings
    Patent number: 4111789
    Abstract: The invention has to do with treatment of dilution centrifuging tailings ch are produced in connection with a hot water extraction operation for recovery of bitumen from oil sands. The tailings are subjected to induced gas flotation for a predetermined period of time to recover contained hydrocarbons as froth.
    Type: Grant
    Filed: February 14, 1977
    Date of Patent: September 5, 1978
    Assignees: Her Majesty the Queen in right of Canada, as represented by the Minister of Energy, Mines and Resources, Her Majesty the Queen in right of the Province of Alberta, Department of, Education Energy and Natural Resources, Alberta Syncrude Equity, Ontario Energy Corporation, Imperial Oil Limited, Canada-Cities Service, Ltd., Gulf Oil Canada Limited
    Inventors: Kenneth Porteous, Leigh Falkenberg, Stephen Lane