Invention Grant
US5977193A Reclaiming epsilon-caprolactam from nylon 6 carpet 失效
从尼龙6地毯回收ε-己内酰胺

Reclaiming epsilon-caprolactam from nylon 6 carpet
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.
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