use of polyoxyalkylen - polysiloxan - blockmischpolymerisaten as demulgatoren for water containing oil

摘要

the demulgierung water enthaltendem oil selected polyoxyalkylen - polysiloxan - blockmischpolymerisate the general formula $f1 described with r1 = alkylgruppe with 6 to 28 carbon atoms, r2 = polyethergruppe the general formula $a - m - (c2h4o) x (c3h6o) yr3 $a $a and m a bivalent alkylengruppe with up to 4 carbon atoms or an oxygen atom.r3 = wasserstoffrest, alkylgruppe with 1 to 4 carbon atoms, acyloxyrest or trimethylsilylgruppe, x and y are integers, which are chosen so that the molgewicht group r2 1000, with the weight ratio oxyethylen: oxypropylengruppen 100: 0 to 50: 50 is m = 0 b is 20, n = 10 to 50, o = 10 to 50.the demulgatoren in quantities of 200 ppm, relative to oil, is used.