From a hydrometallurgical perspective, solvent extraction is exclusively used in separation and purification of uranium and plutonium, zirconium and hafnium, separation of cobalt and nickel, separation and purification of rare earth elements etc., its greatest advantage being its ability to selectively separate out even very similar metals. The two-phase solutions enter into the mixing area of inside the shell from the two phase inlet ,which in a certain proportion to make the two phases mix and disperse quickly and complete the mixing mass transfer process. One obtains high-purity single metal streams on 'stripping' out the metal value from the 'loaded' organic wherein one can precipitate or deposit the metal value.
Liquid–liquid extraction is also widely used in the production of fine organic compounds, the processing of perfumes, the production of vegetable oils and biodiesel, and other industries. Tiei Extraction design and manufacture of CWL-M serial centrifuges extractors has laboratory scale centrifuges, pilot scale centrifuges and multistage production centrifuges.