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��ѧ��ҵ�빤�� 2006, Vol. 23 Issue (6) :527-531    DOI:
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Separation of Acetonitrile-Toluene Mixture by Batch Extractive Distillation
CUI Xian-bao~1,ZHOU Jin-bo~1,ZHANG Bin-shan~2,FENG Tian-yang~1,YANG Zhi-cai~1(1.State Key Laboratory of Chemical Engineering,School of Chemical Engineering and Technology,Tianjin University,Tianjin 300072,China;2.Tianjin Huiyu Co.,Ltd.,Tianjin 301600,China)
(1.State Key Laboratory of Chemical Engineering,School of Chemical Engineering and Technology,Tianjin University,Tianjin 300072,China;2.Tianjin Huiyu Co.,Ltd.,Tianjin 301600,China

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ժҪ Ӧ��UNIFAC���Ź��׷��Ƶ�������ȡ��ѡ��ģ��,ѡ������������嶡���ױ����Զ��һ���Ϊ����-�ױ���ϵ����ȡ��,ͨ����Һƽ������ⶨ������-�ױ���ϵ������-�ױ�����ȡ�������µ���Һƽ���ϵ,��Ӧ��UNIFAC���ϵ��ģ�ͽ�����Һƽ����㡣ͨ����Ъ��ȡ�������鿼���˲�ͬ��ȡ����Ч��,�������,�Զ��һ�������ѵ���ȡ��,ͬʱ�о��˻����ȡ��ܼ��ȶԼ�Ъ��ȡ�����Ӱ�졣
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Abstract�� Isopropylbenzene,4-tert-butyltoluene and 1,4-diethybenzene were selected as solvents for separation of acetonitrile-toluene mixture by batch extractive distillation according to a model derived from UNIFAC group contribution method.The vapor-liquid equilibria of acetonitrile-toluene system and acetonitrile-toluene with different solvents were measured by the vapor-liquid equilibria experiments,and the vapor-liquid equilibria of those systems were also calculated using UNIFAC group contribution method to calculate activity coefficients.Different solvents were investigated experimentally by batch extractive distillation,the results show that 1,4-diethybenzene is the optimal solvent for such process. The effects of reflux ratio and solvent ratio were also studied for batch extractive distillation.
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Received 2006-11-15; published 2006-11-15
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���ֱ�;�ܽ�;�ű�ɽ;������;��־��;.��Ъ��ȡ�����������-�ױ�������ϵ[J].  ��ѧ��ҵ�빤��, 2006,23(6): 527-531
CUI Xian-bao~1,ZHOU Jin-bo~1,ZHANG Bin-shan~2,FENG Tian-yang~1,YANG Zhi-cai~1.Separation of Acetonitrile-Toluene Mixture by Batch Extractive Distillation[J].  Chemcial Industry and Engineering, 2006,23(6): 527-531
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