Recovering surfactant

Details Recovering surfactant Recovering surfactant

1977-02-28

1978-09-05

Hart, Charles N.

Liquid purification or separation

Serially connected distinct treating with or without storage...

With storage unit

210259, 210321R, 210433M, B01D 1300, B01D 3100

Patent

active

041118120

ABSTRACT:
In one aspect a process for breaking an oil/water/surfactant emulsion obtained from an oilfield after chemical flooding comprises ultrafiltering the emulsion. In another aspect the oil and water phases produced from the emulsion so broken are further treated to recover the surfactant therefrom. The water phase is subjected to ultrafiltration or reverse osmosis to concentrate the surfactant. The oil phase is washed with water and then separated from the wash water and surfactant, and the surfactant is finally separated from the wash water.

REFERENCES:
patent: 3977967 (1976-08-01), Trulson et al.
patent: 4000065 (1976-12-01), Ladha et al.
"The Treatment of Waste Emulsified Oils by Ultrafiltration" by P. A. Bailey, Filtration and Separation, Jan./Feb. 1977, presented 9/28/76.
The Condensed Chemical Dictionary, 8th Ed., Van Nostrand-Reinhold Company, copyright 1971, p. 639, "2-N-Octanol."
The Condensed Chemical Dictionary, 8th Ed., Van Nostrand Reinhold Company, copyright 1971, p. 840, "Surfactant."
"New Separation Technique for the CPI," A. S. Michaels Chemical Engineering Progress, vol. 64, No. 12, Dec. 1968, pp. 31-43.

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