| 发明名称 |
Method of decoloration of triethylenetetramine using sulfonic acid ion exchange resins |
| 摘要 |
A process of decoloring crude triethylenetetramine (TETA) is disclosed. In the disclosed and preferred procedure, a sulfonic acid ion exchange resin acts on the crude TETA to enable subsequent distillation at elevated temperature to obtain decolored TETA.
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| 申请公布号 |
US4731165(A) |
申请公布日期 |
1988.03.15 |
| 申请号 |
US19850808983 |
申请日期 |
1985.12.16 |
| 申请人 |
THE DOW CHEMICAL COMPANY |
发明人 |
NIEBRUEGGE, DENNIS L.;DEMPSEY, TIMOTHY J.;WILLIS, S. BENNETT |
| 分类号 |
B01D3/34;(IPC1-7):B01D3/34;C07C85/26 |
主分类号 |
B01D3/34 |
| 代理机构 |
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