Miscella Refining

Miscella refining is the process by which neutralization of oil is carried out either in single solvent or double solvent media so that separation of soap stock is easier as well higher neutral oil recovery compare to conventional process. In single miscella refining polar solvent like alcohol is used in which soap stock gets dissolved and separated from neutral oil In double solvent method, both polar and non-polar solvents are used in which neutral oil and soap stock forms two distinct layers by which more neutral oil yield and good quality fatty acid is obtained. On completion of neutralization and separation respective solvents are recovered by distillation and condensation, which is again recycled for the usage in the process. Double solvent miscella refining is more efficient than the single solvent process because of better miscibility of two different immiscible liquids in its corresponding solvents having similar polarity.

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