Process for extraction and neutralization of hydrocarbon sulfoni

Details Process for extraction and neutralization of hydrocarbon sulfoni Process for extraction and neutralization of hydrocarbon sulfoni

1978-06-01

1982-03-23

Siegel, Alan

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260504R, 260505P, 260513R, C07C13900, C07C14324

Patent

active

043212158

ABSTRACT:
A method for producing ammonium hydrocarbon sulfonate which comprises (1) contacting a sulfonation liquor comprising a hydrocarbon sulfonic acid, unreacted hydrocarbon, and SO.sub.3 with an alcoholic extraction medium in which the unreacted hydrocarbon is insoluble, (2) separating the insoluble hydrocarbon raffinate from the extraction medium, (3) removing a substantial portion of the extraction medium in a stripping tower to produce a hydrocarbon sulfonic acid having a residual amount of extraction medium, (4) neutralizing the hydrocarbon sulfonic acid with an excess of ammonia to produce an ammonia hydrocarbon sulfonate and heating the ammonium hydrocarbon sulfonate to remove residual volatile material. To conserve ammonia and solvent, this volatile material is returned to the stripping tower.

REFERENCES:
patent: 1868596 (1932-07-01), Elchwald
patent: 2223194 (1940-11-01), Thompson
patent: 3225086 (1965-12-01), Sias et al.

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