Silicate defoaming composition and methods

Details Silicate defoaming composition and methods Silicate defoaming composition and methods

1994-12-06

1996-11-19

Jordan, Charles T.

Compositions

Preservative agents

Anti-corrosion

252355, B01D 1902

Patent

active

055759505

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.

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"New Water-Based Defoamers Offer Improved Performance As Well As Environmental Advantages", J. H. Wamsley et al., Pulp & Paper, Canada 95:5, 1994, pp. 47-50.
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