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化学工业与工程
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��ѧ��ҵ�빤�� 2009, Vol. 26 Issue (4) :326-330    DOI:
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Purification of the Mixture of Polyamines
LI Yan-xun,LIU Guo-ji,WANG Ying,LUO Ting-liang(School of Chemical Engineering,Zhengzhou University,Zhengzhou 450001,Henan Province,China)
(School of Chemical Engineering,Zhengzhou University,Zhengzhou 450001,Henan Province,China
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Abstract�� The separation and purification process of the mixture of polyamines,an industrial residue produced in the process of second separation of the product in the process of the catalytic hydrogenation of adiponitrile,was studied.The vacuum distillation combined with the cooling crystallization was chosen according to the physical and chemical properties of each component in the mixture of polyamines,the optimized process was determined.Under this condition,the content of 1,4-butanediamine,1,2-diaminocyclohexane,1,6-hexanediamine was 0.75,0.91,0.91 with yield of 87.1%,90% and 80%,respectively.
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Received 2009-07-15; published 2009-07-15
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����ѫ;������;��Ө;��͢��;.�ష���������ᴿ�����о�[J].  ��ѧ��ҵ�빤��, 2009,26(4): 326-330
LI Yan-xun,LIU Guo-ji,WANG Ying,LUO Ting-liang.Purification of the Mixture of Polyamines[J].  Chemcial Industry and Engineering, 2009,26(4): 326-330
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