| 摘要 |
PROBLEM TO BE SOLVED: To provide an easily polymerizable substance storage tank capable of suppressing the polymerization of the outflow liquid, which is obtained when an easily polymerizable substance is refined under vacuum, in the tank. SOLUTION: In the easily polymerizable substance storage tank for storing the outflow liquid obtained when the easily polymerizable substance is refined under vacuum, the outlet of a gas introducing pipe for supplying molecular oxygen-containing inert gas into the storage tank is arranged in the liquid phase in the storage tank. COPYRIGHT: (C)2003,JPO
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