Sulfonation of crude oils to produce petroleum sulfonates

Details Sulfonation of crude oils to produce petroleum sulfonates Sulfonation of crude oils to produce petroleum sulfonates

1976-07-06

1979-04-03

Guynn, Herbert B.

Compositions

Leather or fur treating

166275, 252353, 260505R, E21B 4322

Patent

active

041476387

ABSTRACT:
Petroleum sulfonates are obtained by treating whole crude oil or topped crude oil or mixtures thereof with sulfur trioxide, removing unreacted hydrocarbon, e.g., by addition of water, and neutralizing the sulfonic acids formed with a base, e.g., sodium or ammonia. The products have particular utility for the preparation of micellar systems for use in secondary-type petroleum recovery.

REFERENCES:
patent: RE22548 (1944-09-01), Brandt
patent: 1822271 (1931-09-01), Coggeshall
patent: 2940936 (1960-06-01), Fike
patent: 3215628 (1965-11-01), Peacock
patent: 3270038 (1966-08-01), Marshall et al.
patent: 3302713 (1967-02-01), Ahearn et al.
patent: 3493048 (1970-02-01), Jones
patent: 3504744 (1970-04-01), Davis et al.
patent: 3508611 (1970-04-01), Davis et al.
patent: 3653437 (1972-04-01), Gale et al.

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