C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
C07D 313/04 (2006.01)
Patent
CA 2703828
The object of the present invention is a method for producing e-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 6-caprolactone is obtained from the condensate by distillation.
La présente invention concerne un procédé pour produire de l'e-caprolactone pure à plus de 99 % par cyclisation d'esters de l'acide 6-hydroxycaproïque en phase gazeuse à 150-400 °C et à 1-1020 hPa (abs), par séparation et condensation des composés volatils dans des conditions de cyclisation. Le procédé est caractérisé en ce qu'on traite thermiquement le produit de queue résiduel issu de la cyclisation dans au moins un autre réacteur, en ce qu'on sépare et en ce qu'on condense les composés volatils et en ce qu'on obtient de l'e-caprolactone par distillation à partir des condensats.
Andress Jeffrey T.
Bejune Stephanie
Gasiorowski Todd
Krug Thomas
Pinkos Rolf
Basf Se
Robic
LandOfFree
Process for preparing .epsilon.-caprolactone does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for preparing .epsilon.-caprolactone, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for preparing .epsilon.-caprolactone will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1374295