- 专利标题： PRODUCTION METHOD OF EPSILON-CAPROLACTAM
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申请号： US16318791申请日： 2017-09-07
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公开(公告)号： US20190241513A1公开(公告)日： 2019-08-08
- 发明人: Kazuaki YOSHIMURA , Nobufumi WATANABE , Kohei SEKI , Masashi TERAMORI , Keisuke TANAKA
- 申请人： Sumitomo Chemical Company, Limited
- 优先权： JP2016-179279 20160914
- 国际申请： PCT/JP2017/032205 WO 20170907
- 主分类号： C07D201/04
- IPC分类号： C07D201/04 ; B01J29/40 ; C01B39/36
摘要：
A method for producing ε-caprolactam involves a step of Beckmann-rearranging cyclohexanone oxime in a gas phase in the presence of a zeolite catalyst containing silicon and at least one element selected from alkaline earth metal elements and magnesium. The concentration of the above-described element in the zeolite catalyst is 3 ppm by mass or more and 10000 ppm by mass or less.
公开/授权文献
- US10457636B2 Production method of ϵ-caprolactam 公开/授权日：2019-10-29
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