Method for manufacturing .alpha.-sulfo fatty acid ester salt

Details Method for manufacturing .alpha.-sulfo fatty acid ester salt Method for manufacturing .alpha.-sulfo fatty acid ester salt

1975-10-07

1977-05-03

Garvin, Patrick P.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260401, C11D 128

Patent

active

040214605

ABSTRACT:
A method for manufacturing .alpha.-sulfo fatty acid ester salt which comprises the steps of sulfonating a mixture of 100 parts by weight of saturated fatty acid alkyl ester having 9 to 26 carbon atoms and less than 10 parts by weight of inorganic sulfate by sulfonating gas containing 1.0 to 2.0 mols of SO.sub.3 per mol of said fatty acid ester and diluted to a concentration of 3 to 20% by volume by inert gas at a higher reaction temperature than the solidification point of said fatty acid ester, followed by neutralization by caustic alkali. According to this method, an amount of by-product yielded by breakage of an ester linkage is decreased with the resultant lowered coloration of the product. .alpha.-sulfo fatty acid ester salt is used preferably as an active component for a detergent composition.

REFERENCES:
patent: 3089882 (1963-05-01), Schenck et al.
patent: 3162657 (1964-12-01), Gordon et al.
patent: 3558676 (1971-01-01), Doherty

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