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What is dewaxing process during vegetable oil refinery?
Dewaxing process during vegetable oil refinery is to remove the wax content in some kinds of crude vegetable oil, such as sunflower oil, rice bran oil, cottonseed oil and corn germ oil. Because of high wax content, the quality and flavour of the refined vegetable oil will be influenced. And the presence of wax makes the oil appear cloudy at room temperature. But after dewaxing, the vegetable oil remains clear after 24h of storage at 0˚C.
Dewaxing process 3d picture
So dewaxing process is also called winterization. Henan Doing Company adopts the way of refining first and dewaxing last. So the crude vegetable should be refined in crude vegetable oil refinery plant, and then be pumped into dewaxing workshop. Dewaxing process during vegetable oil refinery has three main steps.
Dewaxing process flow chart
1. First, the refined vegetable oil should be heated to 55˚C, which is to make sure that all the crystal in vegetable oil have been broken.
2. Second, the vegetable oil is cooled slowly to 7–8˚C. In cooling process, new crystal come into being gradually. This process will sustain for 12-24h.
3. At last, after finishing the crystallization, vegetable oil will be pumped into filter machine to separate the wax from vegetable oil.
After dewaxing, the clarity and brightness of vegetable oil are both qualified the national standards. Generally, our customer will buy the sunflower oil refinery plant and sunflower oil dewaxing plant together, in order to get high quality sunflower oil. Henan Doing Company is a professional vegetable oil refinery machine manufacturer. Any question about vegetable oil refining, dewaxing and fractionation, our engineers can give you professional suggestion. Welcome to contact us!
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