| 摘要 |
<p>The invention concerns a method for making an epoxide, in particular glycidol, which consists in heating under reduced pressure a cyclic organic carbonate, in particular glycerol carbonate, to produce a contracting reaction of the carbonate into epoxy cycle. The method is characterised in that the reaction is produced in a solid/liquid system in the presence of a polyol and of a solid catalyst consisting of a type A zeolite or η-alumina. The method, which can be continuously implemented, enables the formation in a single step of the epoxide that escapes in vapour form which is simply extracted and separated from the formed carbon dioxide.</p> |
