Low cost, brine tolerant sulfonate and sulfate surfactants havin

Details Low cost, brine tolerant sulfonate and sulfate surfactants havin Low cost, brine tolerant sulfonate and sulfate surfactants havin

1984-02-24

1985-05-07

Guynn, Herbert B.

Compositions

Leather or fur treating

166275, E21B 4322

Patent

active

045157014

ABSTRACT:
Novel sulfonate and sulfate surfactants which have low interfacial tension at high salinity, and their use in enhanced oil recovery are disclosed. These surfactants may be made from relatively inexpensive intermediates, such as monohydric alcohols and epichlorohydrin. These surfactants have 1,3-dihydrocarboxy-2-propyl hydrophobic tails linked by ethoxy linkages to sulfate or alkyl sulfonate moieties.

REFERENCES:
patent: 3243455 (1966-03-01), Pizzini et al.
patent: 3592796 (1971-07-01), Trapasso et al.
patent: 4018278 (1977-04-01), Shupe
patent: 4110228 (1978-08-01), Tyler et al.
patent: 4463806 (1984-08-01), Hurd
patent: 4468335 (1984-08-01), Chen et al.
patent: 4468342 (1984-08-01), Chen

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