A multitude of separations are accomplished by distillation, but its most important and primary function in the refinery is its use for the separation of crude oil into component fractions.
Systems that can not be separated by purely mechanical means (eg crude oil), chemical separation is the remaining solution.
系统无法石油原油分离纯机械手段(如：)，化学分离是余下的解决方案。
3
The effects of solvent, temperature, additive and separation time on the refinement process of crude anthracene by using emulsion-crystallization were reported.