Preparation of light-colored, wash active .alpha.-sulfofatty aci

Details Preparation of light-colored, wash active .alpha.-sulfofatty aci Preparation of light-colored, wash active .alpha.-sulfofatty aci

1981-07-31

1987-06-09

Warren, Charles F.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C14390

Patent

active

046719008

ABSTRACT:
This invention is directed to the preparation of .alpha.-sulfofatty acid esters. More particularly, this invention is directed to a process for the simplified preparation of light-colored, wash-active esters of .alpha.-sulfofatty acids with monovalent C.sub.1 to C.sub.8 alcohols or their salts from fats and oils of vegetable and/or animal origin comprising re-esterification with the monovalent alcohols or saponification and esterification with the monovalent alcohols, separation of the fatty acid ester formed, hydrogenation of the fatty acid ester, sulfonation, and bleaching, wherein a fatty acid ester fraction from which accompanying fatty acid glycerides have been removed to the extent of about 1 percent by weight or less, based upon the weight of the material to be sulfonated, is introduced into the sulfonation stage.

REFERENCES:
patent: 2195187 (1940-03-01), Moyer
patent: 3158632 (1964-11-01), Blaser et al.
patent: 3256303 (1966-06-01), Stein et al.
patent: 3354187 (1967-11-01), Stein et al.
patent: 3420858 (1969-01-01), McCrimlisk
patent: 3452064 (1969-06-01), Stein et al.
patent: 3485856 (1969-12-01), Wulff et al.
patent: 4080372 (1978-03-01), Stein et al.

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