Process for the conjugation of the double bonds of polyunsaturat

Details Process for the conjugation of the double bonds of polyunsaturat Process for the conjugation of the double bonds of polyunsaturat

1981-05-20

1983-04-26

Niebling, John F.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C09F 708

Patent

active

043812643

ABSTRACT:
A process for the conjugation of the double bonds of polyunsaturated fatty acids or mixtures of fatty acids containing polyunsaturated fatty acids comprising treating said fatty acids with SO.sub.2 in the presence of substoichiometric amounts of soap-forming bases in a closed reaction vessel or in a reaction vessel equipped with a reflux condenser, at a temperature range of from 170.degree. C. to 260.degree. C.; particularly wherein the process is performed in the presence of from 0.5 to 25 mol % of SO.sub.2, 0.5 to 25 mol % of soap-forming alkali metal and/or alkaline earth metal compounds, and 0.05 to 2% by weight, based on the fatty acid starting material, of water.

REFERENCES:
patent: 1896467 (1933-02-01), Scheiber
patent: 2418454 (1947-04-01), Auer
patent: 3257377 (1966-06-01), Hannah
patent: 4164505 (1979-08-01), Krajca

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