Invention Grant
- Patent Title: Process for producing laurolactam
- Patent Title (中): 生产月桂内酰胺的方法
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Application No.: US12993451Application Date: 2009-05-19
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Publication No.: US08338589B2Publication Date: 2012-12-25
- Inventor: Junichi Kugimoto , Nobuhiro Ii , Takashi Doi , Satoru Fujitsu , Tadashi Gotou , Hideo Shimomura , Ryouta Yasumatsu , Joji Kawai
- Applicant: Junichi Kugimoto , Nobuhiro Ii , Takashi Doi , Satoru Fujitsu , Tadashi Gotou , Hideo Shimomura , Ryouta Yasumatsu , Joji Kawai
- Applicant Address: JP Ube-shi
- Assignee: UBE Industries, Ltd.
- Current Assignee: UBE Industries, Ltd.
- Current Assignee Address: JP Ube-shi
- Agency: Knobbe Martens Olson & Bear LLP
- Priority: JP2008-131425 20080520; JP2008-269262 20081020
- International Application: PCT/JP2009/059197 WO 20090519
- International Announcement: WO2009/142206 WO 20091126
- Main IPC: C07D201/04
- IPC: C07D201/04 ; C07D225/02
Abstract:
The present invention relates to a process for producing laurolactam from cyclododecanone oxime by liquid-phase rearrangement reaction using trichlorotriazine as a rearrangement catalyst. The present invention can provide a process which can solve the problem of termination of the reaction at a certain conversion, can prevent an inactive precipitate generated from trichlorotriazine from precipitating in the course of the reaction process, and can remove an inactive precipitate, an active intermediate and a residual catalyst.
Public/Granted literature
- US20110065913A1 PROCESS FOR PRODUCING LAUROLACTAM Public/Granted day:2011-03-17
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