Oil fractionation equipment can be used to process palm oil, palm kernal oil, cottonseed oil and other vegetable oil, fish oil, butter, lard and other animal fats, thereby greatly improve the added value of the oil products.
According to the characteristics of the cooling crystallization and separation, the oil fractionation can be divided into dry extraction, surface active agent method, solvent method and liquid-liquid fractionation method. The method to use depend on the physical and chemical properties of the palmitic and stearic, main emphasis is the nature of the stearic. Dry fractionation is one of the most economical method, which means that the oil is cooled to a certain degree without adding any solvent, and then filtration, separating the crystal and solid.