发明名称 |
METHOD OF REFINING METHYLAL |
摘要 |
Provided is a process for high purification of methylal by removing water and methanol present as impurities from the methylal. The process for purification of methylal comprises subjecting a methylal gas containing water and methanol and a polyalkylene glycol or a derivative thereof to gas-liquid counter current contact to remove the water and methanol. <IMAGE> |
申请公布号 |
EP0785182(B1) |
申请公布日期 |
2000.01.12 |
申请号 |
EP19950932927 |
申请日期 |
1995.09.28 |
申请人 |
ASAHI KASEI KOGYO KABUSHIKI KAISHA |
发明人 |
TANAKA, YOSHIO;YAMAMOTO, SHIGERU |
分类号 |
C07C41/58;C07C43/303;(IPC1-7):C07C43/303 |
主分类号 |
C07C41/58 |
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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