Reclaiming .epsilon.-caprolactam from nylon 6 carpet

Details Reclaiming .epsilon.-caprolactam from nylon 6 carpet Reclaiming .epsilon.-caprolactam from nylon 6 carpet

C - Chemistry, Metallurgy

07

D

C07D 223/10 (2006.01) C07D 201/12 (2006.01)

Patent

CA 2144326

.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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