Pumping crude oil into hydrate tank (oil refining tank), on one hand, quickly stirring , on the other hand, heating by steam or heat transfer oil (in coil pipe), rise oil temperature.

This is the most important section of hydrate de-gumming,manage the adding water (there is a little P-acid in the water) amount, temperature and add water speed.

This part adopt alkali refining method, that is use alkalis like (NaOH) to neutral the free fatty acid in oil, during this process it will produce soapstock , then separated from the oil by setting several hours. NAOH solution, not only neutral free fatty acid, also can act with other matters like protein, mucus,

phospholipid, pigment.

In normal situation , there is pigment in the crude oil , we need to using the active clay to absorb the pigment away ,we use the vibrating filter to filter the waste clay away . If you want to get light color oil , you need to add more active clay . That is mean , the customer can accord to his requirement to control the oil color.

Usually ,there are some odors in the crude oil , it affects the quality of the edible oil . About our refining process , we usually use the direct steam to take odors away in the vacuum condition . In the deodorization pot , the temperature is very high , it also can finish the dehydration section.

This process can remove off the small amount of unsettle gum soluble impurities in the degummed oil, after oil dehydrate cooling , filtering again, to ensure the product oil quality. Then pumping the final oil into the oil tank.

After refining , there is a final process is required , that is De-waxing. Because there is some wax content in the sunflower oil , you need to remove it , or it will affect the quality of the edible oil .

If you are interest in our products , please contact me . I will try my best to solve the problems for you .