发明名称 |
Process for recovery of amine from spent acid stripping liquor |
摘要 |
Disclosed is a process for recovering a virtually water-free amine from an amine acid salt thereof. The process comprises a unique combination of phase separation stages practiced under mild heating and distillation stages. An amine product containing less than 0.2% water can be achieved by the present process. The feedstock for the process suitably is an acid scrub liquor used to scrub amine from a vapor stream thereof which has been used in a cold-box molding process in the foundry industry or in the cure of vapor permeation curable coatings in the coatings industry.
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申请公布号 |
US4472246(A) |
申请公布日期 |
1984.09.18 |
申请号 |
US19820409905 |
申请日期 |
1982.08.20 |
申请人 |
ASHLAND OIL, INC. |
发明人 |
STAMERJOHN, DAVID M.;NORTON, RICHARD V.;STURTZ, GREGORY P. |
分类号 |
B01D3/36;(IPC1-7):B01D3/34 |
主分类号 |
B01D3/36 |
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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