Polar-nonpolar solvent system for deoiling hydrocarbon sulfonate

Details Polar-nonpolar solvent system for deoiling hydrocarbon sulfonate Polar-nonpolar solvent system for deoiling hydrocarbon sulfonate

1980-01-22

1982-03-23

Siegel, Alan

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260505P, 260504R, C07C13900

Patent

active

043212166

ABSTRACT:
Hydrocarbon sulfonates, e.g., petroleum sulfonates, are separated from unsulfonated hydrocarbon e.g., petroleum hydrocarbon oil, by employing a mixture or solvent system comprising an immiscible polar and a nonpolar component. Preferably the immiscible polar component is a carboxylic acid having from 1 to about 4 carbon atoms e.g., formic acid, and the nonpolar hydrocarbon is one containing 3 to about 12 carbon atoms and can be at least one of an alkane, cycloalkane, aromatic and akylated aromatic, an alkene, or a cycloalkene. A petroleum sulfonate is separated from unsulfonated petroleum oil employing a mixture of formic acid and n-octane.

REFERENCES:
patent: 2655530 (1953-10-01), Nevison
patent: 2673208 (1954-03-01), Andrews
patent: 2820056 (1958-01-01), Gerhart et al.
patent: 2880173 (1959-03-01), Honeycutt

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