A: Generally speaking, impurities present in crude vegetable oil can be devided into four kinds: mechanical impurities, moisture impurities, colloidal impurity, fat-soluble impurities.

A: Refining process mainly includes degumming, deacidification, decolorization, deodorization, dewaxing and other sections.Generally, there are three types of refining methods:intermittent refining process,semi-continuous refining process and continuous

A: The processing capacity mentioned here refers to the amount of crude edible oil processed by the edible oil refinery plant during 24 hours. For example, the 50tpd soybean oil refinery plant can process 50 tons crude soybean oil per day(24 hours).

A: In edible oil refinery plant, there are four kinds of cooking oil filter machine often used. They are plate and frame filter, leaf filter, vacuum diaphragm filter and safe filter. They have different functions.

A: The final vegetable oil specifications are as follows:The Moisture & Volatile matter/ % of 1st grade vegetable oil ≤0.05;The Moisture & Volatile matter/ % of 2nd grade vegetable oil ≤0.05;