Invention Grant
- Patent Title: Preparation of caprolactam
- Patent Title (中): 己内酰胺的制备
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Application No.: US358412Application Date: 1994-12-19
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Publication No.: US5495014APublication Date: 1996-02-27
- Inventor: Eberhard Fuchs , Tom Witzel
- Applicant: Eberhard Fuchs , Tom Witzel
- Applicant Address: DEX Ludwigshafen
- Assignee: BASF Aktiengesellschaft
- Current Assignee: BASF Aktiengesellschaft
- Current Assignee Address: DEX Ludwigshafen
- Priority: DEX4442727.1 19941201
- Main IPC: C07D201/12
- IPC: C07D201/12
Abstract:
Caprolactam is prepared by cleaving oligomers or polymers containing essentially the repeating unit --[--N(H)-(CH.sub.2).sub.5 --C(O)--]- in the presence of a catalyst at elevated temperatures by a process in which the cleavage is carried out in the liquid phase in the presence of a heterogeneous catalyst and of an organic solvent.
Public/Granted literature
- US4928604A Control system for pulverized coal fired boiler Public/Granted day:1990-05-29
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