Abstract

The azeotropic behavior of waste water that contains phenol and high concentrated salt in a distillation column

Author(s): Wenze Li, Shaoqing Chang, Xuan Qi, Depeng Liu,Chao Zhang, Hong-bin Sun

The waste water containing phenol and high concentrated sodium chloride is treated by distillation. Applying a distillation tower, more than 99% phenol is recycled by azeotropic batch fraction. The reflux ratio is optimized to 3 when a fraction column with ten theoretical perfect plates is used. Comparatively, the simple distillation gives dissatisfactory removal of phenol from the waste water.


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