发明名称 |
METHOD FOR PURIFYING TETRACHLOROETHYLENE |
摘要 |
Tetrachloroethylene containing a stabilizer is contacted with a zeolite having an average pore size of 3.4 to 11 and/or a carbonaceous adsorbent having an average pore size of 3.4 to 11 in a liquid phase to obtain a high purity tetrachloroethylene. A halogenated alkene and/or a halogenated alkane are reacted with hydrogen fluoride in the presence of a fluorination catalyst to produce a first hydrofluorocarbon, a halogenated alkene and/or a halogenated alkane are reacted with hydrogen fluoride in the presence of a fluorination catalyst to produce a second hydrofluorocarbon, and the products are joined and then distilled to obtain the first and second hydrofluorocarbons.
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申请公布号 |
KR20050103250(A) |
申请公布日期 |
2005.10.27 |
申请号 |
KR20057018917 |
申请日期 |
2005.10.04 |
申请人 |
SHOWA DENKO KABUSHIKI KAISHA |
发明人 |
OHNO HIROMOTO;OHI TOSHIO;MIYAMURA MAKOTO |
分类号 |
C07C17/20;C07C17/21;C07C17/389;(IPC1-7):C07C17/389;C07C21/12 |
主分类号 |
C07C17/20 |
代理机构 |
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