In this study, we presented the basic data for a guide to the selection of a set of conditions to give each desired products by investigating the effects of such process variables as agitation rate, catalyst concentration, temperature and pressure on the reaction rate, selectivity ratio and trans-isomer formation which characterize the hydrogenation of soybean oil under consistent catalyst and feeds. On the other hand, catalyst separation from the oil after the reaction was attempted with a laboratory scale Gulftronic separator and the separator was highly satisfactory in terms of control, operation, and efficiency.