method of oil-water separation oil-water separating agent and coal tar of coal tar

摘要

The present invention I provide oil-water separating agent which is excellent in oil-water separation effect of moisture coal tar, and the oil-water separation method. A containing polyoxyalkylene alkyl sulfosuccinic acid salt and / or sulfosuccinic acid alkyl salt, oil-water separating agent of the water-containing coal tar, and oil-water of the water-containing coal tar, including the step of adding a surfactant to the water-containing coal tar separation method.BACKGROUND