Defoaming composition

Details Defoaming composition Defoaming composition

B - Operations, Transporting

01

D

134/56

B01D 19/04 (2006.01)

Patent

CA 1143244

DEFOAMING COMPOSITION Abstract of the Disclosure A defoaming composition for controlling and suppres- sing foam and dispersed air in aqueous systems. The composi- tion of this invention is particularly useful in pulp and paper mill operations and comprises: a) a polyoxyethylene adduct of a polyoxypropylene hydrophobic base, said hydrophobic base having a molecular weight of about 3500 to 4500 and an oxyethylene content of about 2 to 20 percent by weight of the total molecule, b) a water insoluble solvent, c) a normally solid fatty acid amide, and d) a fatty alcohol mixture which may also include other hydrocarbons. In addition to the above, the composition may include hydro- phobic silica particles.

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