Process for the deoiling of olefin sulfonates

Details Process for the deoiling of olefin sulfonates Process for the deoiling of olefin sulfonates

1984-12-28

1986-04-01

Siegel, Alan

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260504R, 260513R, 260513T, C07B 1300

Patent

active

045796904

ABSTRACT:
An improved process for the solvent extraction of free oil from C.sub.8 to C.sub.24 olefin sulfonation products, which comprises steps for contacting an olefin sulfonation product containing free oil with an alkane-based extraction solvent and phase separating the resulting mixture into an extract phase enriched in free oil and a raffinate phase enriched in sulfonated matter. The invention is particularly directed to the use in such a process of an extraction solvent which comprises one or more C.sub.4 to C.sub.9 alkanes and between about 5 and 35 percent by weight of dimethyl ketone. Deoiled sulfonation products are known for utility as components of detergent formulations for industrial, household and personal care uses.

REFERENCES:
patent: 2781315 (1957-02-01), Bray
patent: 3888917 (1975-06-01), Fendress et al.
patent: 4321216 (1982-03-01), Delgado

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