Method for preparing epsilon-caprolactone by using micro-reaction device

The invention discloses a method for preparing epsilon-caprolactone by using a micro-reaction device. The epsilon-caprolactone is prepared from meta-chloroperbenzoic acid and ethyl acetate as raw materials by using a micro-channel reaction technique. Compared with the prior art, the method adopts the micro-reaction device for synthesizing the epsilon-caprolactone, so that problems of conventional production can be overcome, the raw material conversion rate can be increased, the reaction time can be shortened, the content of byproducts can be reduced, the process procedures are simplified, circulation of an oxidant can be achieved, the production cost can be lowered, the production process security of the epsilon-caprolactone can be greatly improved, the product quality can be improved, and the industrial production can be facilitated.