Composition and method for cleaning oil from hard surfaces

Details Composition and method for cleaning oil from hard surfaces Composition and method for cleaning oil from hard surfaces

C - Chemistry, Metallurgy

11

D

134/27

C11D 3/16 (2006.01) C11D 1/52 (2006.01) E21B 21/06 (2006.01) E21B 41/00 (2006.01)

Patent

CA 1203450

S P E C I F I C A T I O N COMPOSITION AND METHOD FOR CLEANING HYDROCARBON OIL FROM HARD SURFACES The following disclosure contains a correct and full description of the invention and the best mode known to the inventor(s) of taking advantage of the same. A B S T R A C T Hydrocarbon oils may be cleaned from hard, inorganic surfaces by the application of an aqueous solution (e.g. sea water) containing from 0.1 to 10% by weight of a mixture of (A) 5 to 95% by weight of an alkoxylated, alcohol, carboxylic acid, alkyl phenol, alkylamine or nonionic phosphate ester, having in each case at least one alkyl group with from 6 to 22 carbon atoms and from 1 to 20 ethyleneoxy and/or propyleneoxy groups, with (B) from 95% to 5% by weight of at least one alkenyl or alkyl mono- or di-ethanolamide or an ethoxylated or polyethoxylated alkenyl or alkyl mono- or di- ethanolamide wherein the alkyl or alkenyl group has from 5 to 17 carbon atoms and having 1 to 12 total ethoxy groups. The method is of particular value for cleaning drilling oil from rock cuttings in offshore drilling operations.

419049

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