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以二甘醇为DEM与乙醇水溶液萃取分离的溶剂,以UNIQUAC方程为活度系数计算的模型,采用相分配系数(β)和物料守恒方程模拟逆流萃取分离结果,建立了模拟计算程序框图,并进行逆流萃取试验,模拟计算结果和实验结果吻合,为进一步逆流萃取中试提供可行性依据。
Diethylene glycol was used as the solvent to extract and separate DEM and ethanol aqueous solution. The UNIQUAC equation was used to calculate the activity coefficient. Phase partition coefficient (β) and material conservation equation were used to simulate countercurrent extraction and separation, and a simulation program block diagram was established. Countercurrent extraction test, the simulation results agree well with the experimental results, to provide a feasibility basis for further countercurrent extraction pilot.