This invention relates to the field of liquid-liquid separation and discloses an apparatus and method for
aromatic hydrocarbon extraction. The apparatus includes a
raw material tank, a
solvent tank, a mixer, and an extraction
tower. The
raw material tank is connected to the
raw material inlet of the extraction
tower, and the
solvent tank is connected to the
solvent inlet of the extraction
tower. The mixer includes a spray section and a mixing and extraction section. In the mixing and extraction section, the raw material and solvent are broken and diffused through multiple variable
diameter sections and rotated by a single
helical blade. Finally, the mixing is completed in a
petal-shaped turbulent
mixing chamber, which effectively improves the mixing and emulsification effect of the raw material and solvent, which is beneficial to improving the extraction efficiency. The apparatus has a compact structure and low
energy consumption, and is particularly suitable for
aromatic hydrocarbon extraction in the fields of chemical, food,
coating, and cosmetic industries.