Catalyst removal from alcohol alkoxylates using acid clays.

摘要

The removal of basic alkaline earth metal catalysts from alcohol alkoxylate product streams using acid clays wetted with water. The catalyst level may be reduced to 1 ppm or less in many instances. Effective acid clays include silica clays, silica magnesia clays, alumina, montmorillonite clays and mixtures thereof. Contacting of the clay with the alcohol alkoxylate may take place at ambient to 120 DEG C.