Invention Grant
- Patent Title: Washing of an organic phase comprising caprolactam
- Patent Title (中): 洗涤包含己内酰胺的有机相
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Application No.: US13060885Application Date: 2009-09-02
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Publication No.: US08604188B2Publication Date: 2013-12-10
- Inventor: Theodorus Maria Smeets , Leonardus Joseph Raets , Cornelis Marinus Van Liujk
- Applicant: Theodorus Maria Smeets , Leonardus Joseph Raets , Cornelis Marinus Van Liujk
- Applicant Address: NL Heerlen
- Assignee: DSM IP Assets B.V.
- Current Assignee: DSM IP Assets B.V.
- Current Assignee Address: NL Heerlen
- Agency: Nixon & Vanderhye P.C.
- Priority: EP08015595 20080904
- International Application: PCT/EP2009/061307 WO 20090902
- International Announcement: WO2010/026147 WO 20100311
- Main IPC: C07D201/16
- IPC: C07D201/16
Abstract:
The invention relates to a process for extracting an impurity from an organic phase comprising caprolactam, comprising extracting the impurity by washing said organic phase as a discontinuous phase with an aqueous phase as a continuous phase, the ratio of the flow of the aqueous phase in m3/hr, to the flow of the organic phase in m3/hr, being 0.05 or less. Further the invention relates to a caprolactam production plant, wherein use can be made of a process of the invention.
Public/Granted literature
- US20110224428A1 WASHING OF AN ORGANIC PHASE COMPRISING CAPROLACTAM Public/Granted day:2011-09-15
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