Abstract
Increased yields of saturated cyclic fatty acids which are fluid at −50C have been obtained from linseed oil. Depending on reaction conditions, yields varied from 20–42 g of cyclic acids per 100 g of linseed oil. Solvent ratios of 6, 3, and 1.5∶1; catalyst concentrations of 10, 30, 60, and 100%; and reaction temps of 225, 275, 295, and 325C were evaluated. Ethylene glycol and diethylene glycol were compared as reaction solvents.
In general, high solvent ratios favored high cyclic acid yields at the lower reaction temperature, but as the temperature increased the effect of solvent ratio decreased. Increasing the percentage excess of sodium hydroxide increased the cyclic acid yield. Diethylene glycol gave higher yields than ethylene glycol at comparable conditions.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
DeJarlais, W. J., and H. M. Teeter, Abstract papers, AOCS 52nd Annual Meeting, St. Louis, Mo., 1961, Abstract No. 5.
Friedrich, J. P., Anal. Chem.,33, 974 (1961).
Friedrich, J. P., H. M. Teeter, J. C. Cowan, and G. E. McManis, JAOCS38, 329 (1961).
Kappelmeier, C. P., Fahren, Ztg.38, 1018–20, 1077–9 (1933).
Miller, W. R., H. M. Teeter, A. W. Schwab, and J. C. Cowan, JAOCS39, 173–6 (1962).
Scholfield, C. R., and J. C. Cowan,Ibid. 36, 631 (1959).
Author information
Authors and Affiliations
Additional information
A laboratory of the No. Utiliz. Res. & Dev. Div., ARS, U.S.D.A.
About this article
Cite this article
Eisenhauer, R.A., Beal, R.E. & Griffin, E.L. Cyclic fatty acid yields from linseed oil. J Am Oil Chem Soc 40, 129–131 (1963). https://doi.org/10.1007/BF02640717
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF02640717