| 摘要 |
The invention relates to a trioxane production method comprising the following stages: catalysed reaction in an acid medium of an aqueous highly concentrated formaldehyde solution (1) in a reactor (R) for obtaining a trioxane/formaldehyde/water mixture (2) (stage I); distillation of said trioxane/formaldehyde/water mixture (2) of the stage I for obtaining a raw trioxane as a head flow (3) (stage II), distillation treatment of the raw dioxane of the stage II in one or several stages for obtaining a pure dioxane (8), wherein a side aqueous flow (4) is deducted during the stage II. |
