Process for preparing brine tolerant sulfonate and sulfate surfa

Details Process for preparing brine tolerant sulfonate and sulfate surfa Process for preparing brine tolerant sulfonate and sulfate surfa

1985-01-31

1986-07-29

Chan, Nicky

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260512R, 558 60, C07C14311

Patent

active

046030093

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: 4442042 (1984-04-01), Schmitt
patent: 4468335 (1984-08-01), Chen et al.

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