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

1973-07-05

1979-03-13

Siegel, A.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C14324

Patent

active

041442660

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 hydroxide 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: 2798851 (1957-07-01), Nelson et al.
patent: 2953525 (1960-09-01), Young
patent: 3215628 (1965-11-01), Peacock
patent: 3270038 (1966-08-01), Marshall et al.
patent: 3653437 (1972-04-01), Gale

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