发明名称 |
DISTILLATIVE METHOD FOR SEPARATING HEXAMETHYLENEDIAMINE FROM A MIXTURE COMPRISING HEXAMETHYLENEDIAMINE, -AMINOCAPRONITRILE AND TETRAHYDROAZEPINE |
摘要 |
A method for recovering hexamethylene diamine (HMD) from a mixture (18) comprising HMD, 6-aminocapronitrile (ACN) tetrahydroazepine (THA), and ADN comprising: (a) introducing the mixture into a distillation column (20) capable of separating as a group the HMD, ACN and at least a portion of the THA from the ADN, while minimizing the isomerization of the ADN into CPI; and (b) introducing the HMD, ACN and at least a portion of the THA into a distillation column (26) capable of separating the HMD from the ACN in such a way that the THA separates along with the ACN. |
申请公布号 |
WO2004080932(A3) |
申请公布日期 |
2005.03.24 |
申请号 |
WO2004US06463 |
申请日期 |
2004.03.03 |
申请人 |
INVISTA TECHNOLOGIES S.A.R.L.;OSTERMAIER, JOHN, J. |
发明人 |
OSTERMAIER, JOHN, J. |
分类号 |
B01D3/10;B01D3/14;B01D3/42;C07C;C07C209/00;C07C209/84;C07C209/86;C07C211/00;C07C211/12;C07C255/00;C07D223/12 |
主分类号 |
B01D3/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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