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United States Department of Agriculture

Agricultural Research Service

Title: Technology and Solvents for Extracting Oilseeds and Non-Petroleum Oils

Author
item Hron Sr, Robert

Submitted to: Journal of the American Oil Chemists' Society
Publication Type: Book / Chapter
Publication Acceptance Date: September 26, 1997
Publication Date: N/A

Technical Abstract: Other chapters in this monograph describe the history and use of common solvents used in oilseed extraction. However, in the evolution of solvent extraction of oilseeds and non-petroleum oils, many different solvents have been tried starting with the use of carbon disulfide to the most recent resurrection of liquid, non-supercritical, propane. Carbon disulfide was widely used in Europe during the latter 19th century in the extraction of olive press cake to produce "sulfur olive oil" and liquid propane is presently being used by CF Systems in Arvada, Colorado to produce fat-free peanut flour. This chapter reviews the use and application of 22 "other" solvents that were either used commercially or seriously studied or considered by researchers in the history of solvent extraction. Of the solvents reviewed in this chapter ethyl acetate, and non-supercritical liquid propane, because of their chemical and physical characteristics, appear to be the only potential alternatives to the present solvent of choice hexane. However, a large change in the present circumstances (e.g. banning the use of hexane and similar hydrocarbon solvents) would need to occur in order for any significant usage of any one of them to be a reality.

Last Modified: 8/22/2014
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