| 摘要 |
PURPOSE: An apparatus for separating aromatic amine compounds is provided to improve the purity and the yield of aromatic amine compounds and to reduce a solvent required for a separating process. CONSTITUTION: An apparatus(1) for separating aromatic amine compounds includes a stationary phase. The absorption ratio of the stationary phase to aromatic amine compounds and the absorption ratio of impurities are different. The apparatus includes regions(10 to 40) and ports(11 to 41). Regions are successively connected. The ports are installed between the regions. Raw materials are injected into the ports while the ports are periodically exchanged in the order of a first port, a second port, a third port, a fourth port, and the first port. A poor solvent, a mobile phase to the aromatic amine compound, is injected into the ports while the ports are periodically exchanged in the order of the third port, the fourth port, the first port, the second port, and the third port. [Reference numerals] (AA) Switching direction of ports |
