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METHODS FOR EXTRACTING BITUMEN FROM BITUMINOUS MATERIAL

  • US 20110180458A1
  • Filed: 01/22/2010
  • Published: 07/28/2011
  • Est. Priority Date: 01/22/2010
  • Status: Abandoned Application
First Claim
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1. A method comprising:

  • adding a first quantity of first solvent to a bitumen material to form a first mixture, wherein the first mixture comprises a bitumen-enriched solvent;

    separating a first quantity of the bitumen-enriched solvent from the first mixture and thereby producing first solvent-wet tailings, wherein the first solvent-wet tailings comprise a first solvent component;

    adding a quantity of second solvent to the first solvent-wet tailings to separate a first quantity of the first solvent component from the first solvent-wet tailings and thereby producing second solvent-wet tailings, wherein the second solvent-wet tailings comprise a second solvent component; and

    adding a quantity of water to the second solvent-wet tailings to separate a first quantity of the second solvent component from the second solvent-wet tailings and thereby forming solvent-dry, stackable tailings.

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