发明名称 |
Highly purified acetonitrile and process for purifying crude acetonitrile |
摘要 |
A process for purifying crude acetonitrile comprising: (1) a step of contacting crude acetonitrile with nascent oxygen, (2) a step of contacting the acetonitrile from step (1) with a solid base, and (3) a step of removing low-boiling compounds and high-boiling compounds from the acetonitrile from step (2), wherein the step (3) may be effected after the step (1) and before the step (2).
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申请公布号 |
US5629443(A) |
申请公布日期 |
1997.05.13 |
申请号 |
US19950371180 |
申请日期 |
1995.01.11 |
申请人 |
ASAHI KASEI KOGYO KABUSHIKI KAISHA |
发明人 |
NAKAMURA, SHIGEO;KURIHARA, SHIGERU;SAITOH, MINORU;MIDORIKAWA, HIDEO |
分类号 |
C07C253/34;(IPC1-7):C07C253/34 |
主分类号 |
C07C253/34 |
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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