Invention Grant
- Patent Title: Reclaiming epsilon-caprolactam from nylon 6 carpet
- Patent Title (中): 从尼龙6地毯回收ε-己内酰胺
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Application No.: US943795Application Date: 1992-09-11
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Publication No.: US5977193APublication Date: 1999-11-02
- Inventor: Thomas F. Corbin , Alan C. Handermann , Richard Kotek , William D. Porter , Jack A. Dellinger , Edward A. Davis
- Applicant: Thomas F. Corbin , Alan C. Handermann , Richard Kotek , William D. Porter , Jack A. Dellinger , Edward A. Davis
- Applicant Address: NJ Parsippany
- Assignee: BASF Corporation
- Current Assignee: BASF Corporation
- Current Assignee Address: NJ Parsippany
- Main IPC: B29B17/02
- IPC: B29B17/02 ; B29K77/00 ; B29K105/26 ; C07D201/12 ; C08G69/14 ; C08J11/00 ; C08J11/14 ; C08J11/16
Abstract:
.epsilon.-Caprolactam is continuously recovered from carpet made from nylon 6 face fibers and a backing. The carpet is fed to a separator to prepare scrap containing nylon 6 and auxiliary materials. The scrap from the separator is fed to a depolymerizing reactor to produce an .epsilon.-caprolactam containing distillate and more auxiliary materials. The .epsilon.-caprolactam in the distillate is separated from other volatiles and purified. The auxiliary materials are also recovered or re-used.
Public/Granted literature
- US4802929A Compliant thermoelectric converter Public/Granted day:1989-02-07
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