Water-flood surfactant

Details Water-flood surfactant Water-flood surfactant

1987-05-26

1990-01-02

Griffin, Ronald W.

Compositions

Leather or fur treating

568608, 252 8552, 252 8554, 2523115, 252351, 252170, 210749, C07C14324, C07C 4311, C07C 4318, C07C 4320

Patent

active

048911771

ABSTRACT:
A water-flood surfactant and the method of making it which comprises the steps of mixing, in a reactor, sodium hydroxide with a sulfonated natural petroleum crude, the sodium hydroxide being in excess of the amount required to convert the sulfonate to phenol and sufficient to convert a portion of the phenol to sodium phenolate; heating the mixture while stirring to about 319.degree. C. for a period of about one hour; passing a current of inert gas through the top of the reactor during the heating step; cooling the mixture to a temperature of approximately 200.degree. C. while continuing to pass an inert gas through the top of the reactor; and passing ethylene oxide gas through the mixture in the reactor while maintaining the temperature in the reactor between 200.degree. C. and 220.degree. C.

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