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United States Department of Agriculture

Agricultural Research Service

Title: Synthesis of Biodegradable Lubricants from Tallow

Authors
item Skender, Alex
item Cermak, Steven
item Isbell, Terry

Submitted to: Regional Meeting of American Chemical Society
Publication Type: Abstract Only
Publication Acceptance Date: September 15, 2005
Publication Date: September 15, 2005
Citation: Skender, A.L., Cermak, S.C., Isbell, T. 2005. Synthesis of biodegradable lubricants from tallow [abstract]. Regional Meeting of American Chemical Society. p. 1

Technical Abstract: Consumers today are demanding more from their automobile lubricants then ever before. The use of renewable lubricants can meet these demands and at the same time lessen the demand for foreign oil. These new functional fluids, estolides, have shown great promise as a biodegradable lubricant. Estolides and their co-products compared favorably to commercially available industrial products such as petroleum-based hydraulic fluids, soy-based fluids, and petroleum oils, and usually outperform the competition. Estolides are formed when the carboxylic acid functionality of one fatty acid links to the site of unsaturation of another fatty acid to form esters. A new series of estolides were derived from oleic acid and a cheap animal source of unsaturated fatty acids, tallow, in the presence of low equivalents of acid with no solvent at 60oC followed by esterification to the 2-ethylhexyl ester. These new estolides were evaluated as a lubricant. Physical properties (pour points, cloud points and viscosities) of the new estolide esters were compared to the homo-estolides and commercial lubricants.

Last Modified: 10/24/2014
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