发明名称 |
Fluorine-containing compound purification method |
摘要 |
There is provided a fluorine-containing compound purification method for obtaining a high-purity fluorine-containing compound by efficiently separating and removing hydrogen chloride from a fluorine-containing compound that contains hydrogen chloride, i.e., from a crude fluorine-containing compound. The fluorine-containing compound purification method of the present invention comprises the following steps (1) and (2) in this order: step (1): a step of adding dimethyl ether to a crude fluorine-containing compound that contains a fluorine-containing compound and hydrogen chloride in a molar ratio (dimethyl ether (mol)/hydrogen chloride (mol)) of dimethyl ether to hydrogen chloride being 1.3 or more to prepare a mixture (1) of the crude fluorine-containing compound and dimethyl ether; and step (2): a step of separating and removing a mixture (2) of hydrogen chloride and dimethyl ether from the mixture (1). |
申请公布号 |
US8692038(B2) |
申请公布日期 |
2014.04.08 |
申请号 |
US201013504335 |
申请日期 |
2010.10.26 |
申请人 |
OHNO HIROMOTO;OHI TOSHIO;MORINAKA KATSUTOSHI;SHOWA DENKO K.K. |
发明人 |
OHNO HIROMOTO;OHI TOSHIO;MORINAKA KATSUTOSHI |
分类号 |
C07C17/38 |
主分类号 |
C07C17/38 |
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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