| abstract |
Process for the preparation of E-caprolactamncomprising treating 6-aminocaproic acid ,n6-aminocaproate ester, 6-aminocaproamide, oligomers ornpolymers of these compounds or mixtures comprising atnleast two of these compounds in a cyclisation reactornin the presence of superheated steam in which a gaseousnproduct stream comprising ε-caprolactam, lights andnheavies is obtained, wherein the product stream, afterncondensation and removal of water and lights, is splitninto a E-caprolactam stream and a heavies streamncontaining heavies and ε-caprolactam and the heaviesnstream is recycled to a cyclisation reactor. |