| 摘要 |
<p>The invention relates to a method for trioxan isolation from an aqueous mixture basically consisting of trioxan, water and formaldehyde. The method is characterized in that trioxan is withdrawn from the mixture by pervaporation and in that the trioxan enriched mixture (permeate) is separated by trioxan rectification and an azeotropic mixture of trioxan, water and formaldehyde.</p> |
