Oil refined oil equipment squeeze out the purpose of fat acid, mainly to remove free fatty acids in oil, and a small amount of oil retained in the colloid, pigment and trace metals, but also create conditions to improve the effect of subsequent jailer.Acid, is a direct impact on tip refined edible oil refined oil equipment squeezing out of cooking oil yield and quality of one of the important factors.Industrial production is the most widely used method of alkali refining acid, i.e. chemical refining method.Followed by water vapor distillation acid method, which is also called the physical refining method.
(a) alkali refining acid
Alkali refining acid. Industry is the use of a certain concentration of caustic soda solution, to neutralize free fatty acids in hair oil, make the transition to generate sodium soap (soap feet) with cooking oil refined oil squeeze oil separation equipment. To be removed. Generated in the process of alkali refining acid sodium soap, has the very high adsorption capacity. It can adsorb other impurities, such as protein, mucus, phospholipids and pigment, it from edible oil refined oil adsorption separation equipment squeeze oil. But in the process of alkali refining acid, a small amount of palm oil refinery plant (http://www.palmmill.com) equipment squeeze oil may also be alkali saponification decomposition (that is, into a soap), thereby increasing oil refined oil squeezing the tip of the grease refining equipment wastage. Therefore, must choose good operating conditions, strict operation procedure and operating indicators, to minimize the neutral oil saponification reaction. Improve oil refining yield.
1. Absence made alkali refining operation and its operation process, the main factors of alkali refining is more complex.In order to achieve good effect of alkali refining, must choose the most suitable technological conditions, process conditions of alkali consumption falling degree, concentration of alkali and alkali refining, etc....