what is the difference between palm oil physical refining and chemical methods?
2019-05-27
The crude palm oil or crude palm kernel oil through refining processing plant to get the palm olein oil and palm stearin.the technplogical characteristics :physical and chemical methods. Chemical refining: It is the use of strong alkali to neutralize most of the free fatty acids and remove them in the form of soapstock, also known as alkali refining。 Physical refining: steam distillation of free fatty acids of grease under high temperature and vacuum conditions.Physical refining (also known as steam refining or distillate refining). Because palm oil contains more fatty acids and less phospholipids, it is particularly suitable for physics refining.
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