| 发明名称 |
METHOD OF DEHYDRATING TOLYLENEDIAMINE AND DEHYDRATOR |
| 摘要 |
A method of dehydrating tolylenediamine which includes subjecting tolylenediamine having a water content of 5-40 wt.% to first-stage distillation at a vacuum of 13-101.3 kPa and subjecting the bottoms from the first-stage distillation to second-stage distillation at a vacuum lower than 13kPa. |
| 申请公布号 |
EP2213649(A4) |
申请公布日期 |
2011.07.13 |
| 申请号 |
EP20080854543 |
申请日期 |
2008.11.25 |
| 申请人 |
MITSUI CHEMICALS, INC. |
发明人 |
OGAWA, TOSHIYUKI;DOHZAKI, MITSUNAGA;SASAKI, MASAAKI |
| 分类号 |
C07C209/84;B01D3/10;B01D3/14;C07C211/51 |
主分类号 |
C07C209/84 |
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