Method for separating wax ester and triglyceride from vegetable oil dewaxing byproduct

The invention discloses a method for separating wax ester and triglyceride from a vegetable oil dewaxing byproduct. The method comprises the following steps: (1) filtering an auxiliary agent; (2) urea inclusion and crystallization; (3) filtration; (4) separating triglyceride; (5) resolving the urea inclusion compound; (6) separating wax ester; and (7) recovering urea. The invention further discloses a corresponding device, and the separation method can be well realized by adopting the device. According to the invention, the dewaxing by-product is dissolved with methanol, and wax ester forms an inclusion compound by using a urea inclusion principle, so that the dewaxing by-product is gradually separated, the three separated products can be fully and reasonably utilized, the additional value of the dewaxing by-product is greatly improved, and the overall production cost of oil refining is reduced. No waste is generated in the production process, separation media urea and methyl alcohol are recycled and reused,