Purification of oleophilic hydrocarbon sulfonate product mixture

Details Purification of oleophilic hydrocarbon sulfonate product mixture Purification of oleophilic hydrocarbon sulfonate product mixture

1972-10-27

1978-05-02

Siegel, A.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

252 85C, 252 855D, C07C14324

Patent

active

040874567

ABSTRACT:
Addition of small amounts of water and small amounts of neutral oleophilic organic compounds, e.g., alcohols, phenols, aldehydes, ketones, and esters to product mixtures produced by treatment of hydrocarbons with sulfur trioxide, followed by neutralization with an inorganic hydroxide, and comprising oleophilic petroleum sulfonates, together with undesired hydrophilic petroleum sulfonates and inorganic salts, causes separation of a lower phase containing substantial quantities of said undesired constituents and permitting ready recovery of said oleophilic hydrocarbon sulfonates. The products are particularly useful in micellar systems for the secondary-type recovery of petroleum.

REFERENCES:
patent: 1868596 (1932-07-01), Eichwald
patent: 2223194 (1940-11-01), Thompson
patent: 2280118 (1942-04-01), Dombrow

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