摘要 |
<p>In a process for separating oily films from sand particles carried in a solvent free water stream, the use of a jet pump scrubber in a density classification tank to treat such oily coated particles at controlled operating temperatures above 65 °C whereby at such controlled temperature enhanced cavitation in said jet pump separates said oily film from said sand particles to form slop oil, said tank providing for recirculation of sand particles through said jet pump before discharge.</p> |