| 发明名称 |
DICHLOROMETHANE PURIFICATION METHOD AND PROCESS FOR PRODUCING DIFLUOROMETHANE USING THE SAME |
| 摘要 |
To provide a dichloromethane purification method which can reduce the amount of stabilizers present in dichloromethane and is feasible in industry by a simple operation, a dichloromethane purification method includes bringing dichloromethane containing at least one stabilizer selected from the group consisting of 2-methyl-2-butene, hydroquinone and resorcinol into contact in a liquid phase state with a zeolite having an average pore size of 3 to 11 Å and thereby reducing the amount of the stabilizer. |
| 申请公布号 |
US2016060193(A1) |
申请公布日期 |
2016.03.03 |
| 申请号 |
US201414787339 |
申请日期 |
2014.05.08 |
| 申请人 |
SHOWA DENKO K.K. |
发明人 |
OHNO Hiromoto;OHI Toshio |
| 分类号 |
C07C17/389;C07C17/383;C07C17/20 |
主分类号 |
C07C17/389 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A dichloromethane purification method comprising bringing dichloromethane containing at least one stabilizer selected from the group consisting of 2-methyl-2-butene, hydroquinone and resorcinol into contact in a liquid phase state with a zeolite having an average pore size of 3 to 11 Å and thereby reducing the amount of the stabilizer. |
| 地址 |
Tokyo JP |
