Inventors:
Alvin E. Steelman - Havre de Grace MD
Assignee:
J. M. Huber Corporation - Edison NJ
International Classification:
B01D 1902
Abstract:
Defoaming formulations for aqueous systems are produced by treating silicates such as sodium magnesium aluminosilicates with a source of aluminum to provide an aluminum content therein in the range of 0. 1 to 2. 5 wt. %, preferable 0. 3 to 1. 3 wt. %, and forming a defoaming formulation from said aluminum treated silicate by hydrophobizing with a silicone fluid, and dispersing in oil and/or water to form a defoamer formulation.