Journal of the American Oil Chemists’ Society

, Volume 56, Issue 11, pp 729A–732A | Cite as

Fat splitting

  • N. O. V. Sonntag
Proceedings of the AOCS Short Course on Industrial Fatty Acids, held June 10–13, 1979, Taminent, PA


Fat splitting, particularly the continuous, high pressure, countercurrent hydrolysis of fats and oils, typified by the Colgate-Emery or modified processes, represents the technological cornerstone for today’s American fatty acid industry. Internationally, other methods such as Twitchell or batch autoclave “medium-pressure” catalyzed or uncatalyzed splitting are still important. All industrial fat splitting methods have as their objectives the attainment of a high rate of hydrolysis together with a high degree of completeness. This objective is achieved, more or less, by the proper optimum balance of: (a) use of excess water; (b) selection of appropriate combination of temperature and pressure to optimize the solubility of liquid water in the fat phases with or without use of suitable “water-in-oil” emulsifiers; (c) use or nonuse of acidic catalyst (rarely basic catalysts); and (d) removal of byproduct glycerol. Significant conditions and details in fat splitting by the important commercial processes are described.


Twitchell Reagent Autoclave Splitting High Pressure Splitting 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© The American Oil Chemists’ Society 1979

Authors and Affiliations

  • N. O. V. Sonntag
    • 1
  1. 1.Southland Corporation Chemical DivisionFirst Continental Bank BuildingDallas

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