Sulfonation of fatty acid esters

Details Sulfonation of fatty acid esters Sulfonation of fatty acid esters

1993-09-17

1996-12-24

Geist, Gary

Organic compounds -- part of the class 532-570 series

Organic compounds

Fatty compounds having an acid moiety which contains the...

C11D 128

Patent

active

055875009

ABSTRACT:
A sulfonation process includes the process steps of air sulfonating a fatty acid alkyl ester feedstock, bleaching the crude product with co-addition of up to about 40 wt. % of an alcohol based upon the weight of the crude product. The bleaching/alcohol addition step of the process is performed in a nonmetallic or low-iron alloy system at temperatures above 90.degree. C. The resulting product is then neutralized with a liquid base or metal carbonate.

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