| 摘要 |
A process for the separation of a reaction mixture of two or more components by extractive distillation with a selective solvent in a partition wall column comprises carrying out the process in a partition wall column having a partition wall that extends to the upper end of the column and separates the inside of the column into a first region and a second region with a lower common region. A process for the separation of a reaction mixture of two or more components by extractive distillation with a selective solvent in a partition wall column (I) comprises: (a) carrying out the process in a partition wall column having a partition wall that extends to the upper end of the column and separates the inside of the column into a first region (A1) and a second region (A2) with a lower common region; (b) feeding the reaction mixture to the first region (A1) and withdrawal of a first head stream (B1) from (A1) and withdrawal of a second head stream (B2) from the second region (A2) having predefined specifications; (c) addition of the selective solvent to the upper part of the second region (A1) and/or the upper part of second region (A2) whereby the amount of solvent fed to regions (A) and (A2) is adjusted such that the pre-defined specifications for the head streams (B1) and (B2) are maintained. An Independent claim is included for the partition wall column (I). |
