B - Operations – Transporting – 03 – B
Patent
B - Operations, Transporting
03
B
196/28
B03B 9/02 (2006.01)
Patent
CA 2024519
This invention involves the separation of clay-contaminated bitumen from sand with a solvent. The bitumen is dissolved with an organic solvent such as condensate from a natural gas well. The clay is separated from the dissolved bitumen and the solvent is recovered and recycled. The sand is washed with water containing a carefully selected, nonanionic surface active agent to remove residual bitumen and solvent. Prior removal of the clay precludes it from unduly contaminating the water.
Guymon E. Park
Shapiro Cohen
LandOfFree
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