| 摘要 |
Provided is a method of separating off reaction product water and recovering a carboxylic acid used as a solvent in a reactor from a reactor discharge during oxidation of an aromatic compound, and more particularly, a method of separating off reaction product water and recovering a carboxylic acid used as a solvent in a reactor from a reactor discharge during oxidation of an aromatic compound, wherein during the oxidation of the aromatic compound, the reactor discharge is led into two or more dehydration towers having different operating pressures such that a condenser of one dehydration tower operates as a reboiler of another dehydration tower, thereby remarkably reducing energy consumption. |
