发明授权
- 专利标题： Highly purified acetonitrile and process for purifying crude acetonitrile
- 专利标题（中）： 高纯度乙腈和粗制乙腈纯化方法
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申请号： US371180申请日： 1995-01-11
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公开(公告)号： US5629443A公开(公告)日： 1997-05-13
- 发明人: Shigeo Nakamura , Shigeru Kurihara , Minoru Saitoh , Hideo Midorikawa
- 申请人： Shigeo Nakamura , Shigeru Kurihara , Minoru Saitoh , Hideo Midorikawa
- 申请人地址： JPX Osaka
- 专利权人： Asahi Kasei Kogyo Kabushiki Kaisha
- 当前专利权人： Asahi Kasei Kogyo Kabushiki Kaisha
- 当前专利权人地址： JPX Osaka
- 主分类号： C07C253/34
- IPC分类号： C07C253/34
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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