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

1982-08-31

1984-05-01

Siegel, A.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260513B, 252 855D, C07C14302, C09K 300

Patent

active

044460791

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: 2677700 (1954-05-01), Jackson et al.
patent: 2932616 (1960-04-01), Blake
patent: 3243455 (1966-03-01), Pizzini et al.
patent: 3592796 (1971-07-01), Trapasso et al.
patent: 3686098 (1972-08-01), Weil
patent: 3821169 (1974-06-01), Duddey
Wagner et al., "Synthetic Org. Chem.", (1953), pp. 226-229.

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