| abstract |
A process for the preparation of ε-caprolactamnstarting from 6-aminocaproic acid, 6-aminocaproamide,n6-aminocaproic ester, 6-aminocapronitrile,noligomers or polymers of thesencompounds or mixtures comprising at least two of thesencompounds, which process is performed in the presencenof N-(5-carboxypentyl)-ε-caprolactam and/or derivativenthereof in an amount of less than 50 wt.% and more thann0.1 wt.% (based on the total reaction mixture). |