(1) Dialyze the glycerol-containing liquid with acid and alkali, filter to remove organic impurities such as soap and fat, and make glycerol clear liquid;

(2) operating a vacuum evaporator to remove inorganic impurities such as water and sodium chloride to prepare crude glycerol;

(3) preparing refined glycerol with high glycerol content by steam vacuum distillation;

(4) adding activated carbon to decolorize and deodorize under vacuum;

And (5) refining the ion exchange resin to prepare finished glycerol, and filling.

The following types of jobs belong to this occupation:

Glycerol water treatment worker and glycerol refining worker