发明名称 |
Process for producing difluoromethane |
摘要 |
A process for refining difluoromethane by removing hydrogen fluoride which is contained in difluoromethane and has been believed to be difficult to remove, which process comprises distilling a mixture of difluoromethane with hydrogen fluoride contained in difluoromethane is absorbed by sulfuric acid. <IMAGE> |
申请公布号 |
AU3869397(A) |
申请公布日期 |
1998.03.19 |
申请号 |
AU19970038693 |
申请日期 |
1997.08.26 |
申请人 |
DAIKIN INDUSTRIES LTD. |
发明人 |
TAKEHIDE TSUDA;TAKASHI SHIBANUMA;YASUFU YAMADA |
分类号 |
C07C19/08;C01B7/19;C07C17/38 |
主分类号 |
C07C19/08 |
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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