| 摘要 |
The invention relates to a method for distillative separation of a three- or multi-component mixture, containing at least one low-boiling substance, at least one medium-boiling substance and at least one high-boiling substance, wherein the three- or multi-component mixture is fed to a first distillation column, which is materially coupled to a second distillation column, wherein the second distillation column has a horizontal partition, which separates the stripping section and the enriching section of the second distillation column, wherein the second distillation column is materially coupled to a third distillation column, wherein a bottom fraction containing at least one high-boiling substance and a top fraction containing at least one low-boiling substance are separated off from the second distillation column, wherein at least one medium-boiling substance is separated off via a side draw of the third distillation column. The invention also relates to a corresponding device. |
