公开(公告)号：EP2217587B1

公开(公告)日：2015-09-23

申请号：EP08847460.6

申请日：2008-10-28

Applicant: BASF SE

Inventor： PINKOS, Rolf ,  TEBBEN, Gerd-Dieter ,  KRUG, Thomas ,  SIRCH, Tilman ,  SPENGEMAN, Todd C ,  BEJUNE, Stephanie ,  ANDRESS, Jeffrey T. ,  GASIOROWSKI, Todd

IPC: C07D313/04

CPC classification number: C07D313/04

公开(公告)号：EP2217587A1

公开(公告)日：2010-08-18

申请号：EP08847460.6

申请日：2008-10-28

Applicant: BASF SE

Inventor： PINKOS, Rolf ,  TEBBEN, Gerd-Dieter ,  KRUG, Thomas ,  SIRCH, Tilman ,  SPENGEMAN, Todd C ,  BEJUNE, Stephanie ,  ANDRESS, Jeffrey T. ,  GASIOROWSKI, Todd

IPC: C07D313/04

CPC classification number: C07D313/04

Abstract: The object of the present invention is a method for producing ε-caprolactone in a purity greater than 99% by cyclization of 6-hydroxycaproic acid ester in the liquid phase at 150 to 400°C and 1 to 1020 hPa abs., separation and condensation of the compounds which are volatile under cyclization conditions, characterized in that the remaining sump product of the cyclization is thermally treated in at least one further reactor, volatile compounds are separated and condensed, and ε-caprolactone is obtained from the condensate by distillation.