发明名称 |
Process for purification of crude acetonitrile |
摘要 |
Crude acetonitrile containing impurities such as hydrogen cyanide, allyl alcohol, oxazole and water is purified by a process including the steps of removing water lower part acetonitrile is treated with an alkali in an amount sufficient to extract water present in the crude acetonitrile, to be thereby divided into an organic liquid phase and an aqueous liquid phase, and the aqueous liquid phase is removed.
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申请公布号 |
US4430162(A) |
申请公布日期 |
1984.02.07 |
申请号 |
US19810289628 |
申请日期 |
1981.08.03 |
申请人 |
ASAHI KASEI KOGYO KABUSHIKI KAISHA |
发明人 |
HIGUCHI, TERUMASA;SUSUMAGO, HIROSHI |
分类号 |
B01D3/34;C07C;C07C33/03;C07D263/32;(IPC1-7):B01D3/34 |
主分类号 |
B01D3/34 |
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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