Separation of Methyl Isobutyl Ketone from Simulated Wastewater with Solvent Sublation
XIAO Bo CHANG Zhi-dong MA Yin-chen LIU Hui-zhou
Laboratory of Separation Science and Engineering, Chinese Academy of Sciences State Key Laboratory of Biochemical Engineering, Laboratory of Separation Science and Engineering, Institute of Process Engineering, Chinese Academy of Sciences State Key Laboratory of Biochemical Engineering, Laboratory of Separation Science and Engineering, Institute of Process Engineering, Chinese Academy of Sciences Institute of Process Engineering, Chinese Academy of Sciences
Abstract： Solvent sublation was applied to separate methyl isobutyl ketone (MIBK) from simulated wastewater containing MIBK at the concentration of 0.20%(j), which is of limited hydrophobic property and volatility. The effects of bubbling time, N2 flow rate, Vorg/Vaq ratio, concentration and type of co-solutes and surfactants on MIBK removal rate of solvent sublation were investigated, and the optimal results were obtained. The results show that the MIBK removal rate can be 25%~30% when the N2 flow rate is 40 mL/min, the Vorg/Vaq ratio 1:30, the concentration of NaCl 0.50%(w) and the concentration of ethanol 1.0%(j), while the positive effect of surfactants on the removal rate of solvent sublation is very limited, which varies from -10% to 5%.
2008, Vol. 8 
