Kinetics of the Saponification of Mixed Fats Consisting of Olein and Stearin

This research presents the kinetics of saponification reaction using mixed fats olein and stearin [in ratio (3:1)] with NaOH solution. In this reaction, excess solution was used to ensure being irreversible. Three parameters were varied show their effects on rate .They are: percentage (10 % - 100 %) , temperature (100-150)oC stirring speed (400-1100) rpm. It noticed that increasing enhances while decreases since it is exothermic reaction. Increasing also improves because mass transfer controlled .Calculations activation energy frequency factor performed.
 A new mathematical model for calculation – constant derived. shown a good approximation obtained between experimental calculated values k .