发明名称 |
Chlorinating waste streams to recover cyanopyridine contained therein |
摘要 |
Cyanopyridines are recovered from waste streams containing the same using a low temperature liquid phase chlorination step followed by filtration. This process increases recovery of unreacted cyanopyridine and significantly reduces waste stream volume.
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申请公布号 |
US4814456(A) |
申请公布日期 |
1989.03.21 |
申请号 |
US19870107716 |
申请日期 |
1987.10.13 |
申请人 |
THE DOW CHEMICAL COMPANY |
发明人 |
MICHAEL, HERBERT K. |
分类号 |
C07D213/84;(IPC1-7):C07D213/84 |
主分类号 |
C07D213/84 |
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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