Application of ternary equilibrium data to the production of fish protein concentrate

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Abstract
Standard chemical engineering techniques were applied to ternary equilibria data obtained from laboratory studies for the systems water‐isopropyl alcohol‐menhaden oil and water‐ethanol‐menhaden oil to obtain information for development and operation of a fish protein concentrate process. Theoretical minimum solvent ratios, the required number of theoretical stages, stage efficiency, effect of excess water in the solvent and the effect of temperature of extraction are reported. A comparison of the solvent, isopropyl alcohol (IPA) and ethanol, at an extraction temperature of 70 C, leaves no doubt that IPA is a superior solvent for the system studied.