Liquid-liquid flow in an impeller-stator spinning disc reactor

► Liquid-liquid flow in an impeller-stator spinning disc reactor is described. ► Six different flow regimes were observed between the impeller and the bottom stator. ► Regime transitions depend on shear stress intensity, and aqueous volume fractions. ► Mixing and separation is achieved in one compact reactor. ► This is an important step toward a countercurrent operated spinning disc reactor.