Calculation of Contactors with Longitudinal Mixing

Design of a Process‐Intensified Liquid‐Liquid Extraction Cell for Higher Temperature and Pressure

“…The experiments are performed with the EFCE (European Federation of Chemical Engineering) test system water (deionized, electrical conductivity ≤ 5 × 10 −4 S m −1 ), acetone (> 99.8 %, VWR Chemicals, Germany), and n ‐butyl acetate (> 99.5 %, Merck KGaA, Germany). The system has a medium surface tension ( σ = 13.96 × 10 −3 N m −1 ) 19 and has shown a good response to the stirred‐pulsed extraction 4, 9. The mass transfer has been performed from the continuous heavy phase (DI water) to the dispersed light phase ( n ‐butyl acetate).…”

“…The extraction performance shows similar rising trends as the load limit. An increase from 15.2 to 33.8 m −1 stages has been overserved during an increase of 50 K. A reason for this behavior could be the increasing diffusion rates 19. Another reason could be the increased throughput within the extraction device.…”

“…An extraction device for increased temperature and pressure could lead to even higher separation efficiencies, as literature showed higher diffusion rates at elevated temperatures 19–21. The physical properties also change at higher temperature and pressure.…”