发明名称 |
Distillation apparatus for readily polymerizable compound |
摘要 |
A distillation apparatus for subjecting a crude readily polymerizable compound to distillation under vacuum conditions to purify the same includes a distillation column and a vacuum generator, an exhaust gas conduit of the vacuum generator being connected to a connecting conduit therebetween through a pressure control valve. The purification method includes using the disclosed distillation apparatus and controlling the action of the pressure control valve based on a pressure of the distillation column, thereby controlling the amount of the exhaust gas to be introduced to control the pressure of the distillation column.
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申请公布号 |
US7288169(B2) |
申请公布日期 |
2007.10.30 |
申请号 |
US20040781986 |
申请日期 |
2004.02.20 |
申请人 |
MITSUBISHI CHEMICAL CORPORATION |
发明人 |
YADA SHUHEI;OGAWA YASUSHI;SUZUKI YOSHIRO;TAKASAKI KENJI;TAKAHASHI KIYOSHI |
分类号 |
B01D3/10;B01D3/14;B01D3/22;B01D3/32;B01D3/42 |
主分类号 |
B01D3/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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