Crude oil demulsifiers

Details Crude oil demulsifiers Crude oil demulsifiers

C - Chemistry, Metallurgy

08

G

196/206, 400/301

C08G 81/00 (2006.01) C08G 8/04 (2006.01) C08G 65/28 (2006.01) C08G 65/331 (2006.01) C10G 33/04 (2006.01)

Patent

CA 1067243

Abstract of the disclosure: A condensation product obtained by first preparing a) an addition product of aliphatic aldehydes and phenol in a molar ratio of about 1 : 1 to 3 : 1, at temperatures in the range of from about 50° to 80° C, in the presence of an al- kaline catalyst, and separately therefrom b) a block polymer, obtained from a polypropylene glycol having a molecular weight from about 1500 to 2500 by the addi- tion of about 30 to 50% by weight of ethylene oxide in the pre- sence of an alkaline catalyst. and subsequently c) condensing about 0.5 to 4 moles of a) with 1 mole of b), after previous neutralization, if necessary in the presence of inert solvents, at 80° to 150° C, and removing the reaction water formed, and its use as demulsifying agent for the separation of water from crude oil emulsions.

236332

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