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公开(公告)号:US08686188B2
公开(公告)日:2014-04-01
申请号:US13104900
申请日:2011-05-10
申请人: Xiaogen Feng , Nongyue Wang , Xiaohui Mao , Ruibiao Yu , Qianwen Cheng , Renping Jiao
发明人: Xiaogen Feng , Nongyue Wang , Xiaohui Mao , Ruibiao Yu , Qianwen Cheng , Renping Jiao
IPC分类号: C07C209/00
CPC分类号: C07C209/36 , C07C209/60 , C07C211/55
摘要: A method for refining an organic composition containing 4-aminodiphenylamine, aniline, azobenzene, and phenazine, having the steps of feeding the organic composition to a first rectification column, producing a first effluent composition containing aniline, azobenzene, phenazine, and a small amount of 4-aminodiphenylamine at the top of the first rectification column and a second effluent composition containing crude 4-aminodiphenylamine at the bottom of the first rectification column, feeding the second effluent composition to a second rectification column, and producing a 4-aminodiphenylamine composition at the top of the second rectification column and a residual composition at the bottom of the second rectification column.
摘要翻译: 一种精制含有4-氨基二苯胺,苯胺,偶氮苯和吩嗪的有机组合物的方法,具有将有机组合物进料到第一精馏塔中的步骤,制备含有苯胺,偶氮苯,吩嗪和少量 第一精馏塔顶部的4-氨基二苯胺和在第一精馏塔底部含有粗4-氨基二苯胺的第二流出物组合物,将第二流出物组合物进料到第二精馏塔,并在第二精馏塔中产生4-氨基二苯胺组合物 第二精馏塔的顶部和第二精馏塔底部的残留组成。