发明名称 |
ADSORBENT FOR PURIFYING PERFLUOROCARBON, PROCESS FOR PRODUCING SAME, HIGH PURITY OCTAFLUOROPROPANE AND OCTAFLUOROCYCLOBUTANE, AND USE THEREOF |
摘要 |
To provide a purification adsorbent capable of effectively removing impurities contained in a perfluorocarbon and obtaining a perfluorocarbon reduced in the impurity content to 1 ppm by mass or less; a process for producing the adsorbent; high-purity octafluoropropane or octafluorocyclobutane; processes for purifying and for producing the octafluoropropane or octafluorocyclobutane; and uses thereof. Purification is performed using a purification adsorbent produced by a method comprising (1) washing an original coal with an acid and then with water, (2) deoxidizing and/or dehydrating the original coal, (3) re-carbonizing the original coal at a temperature of from 500 to 700° C. and (4) activating the original coal at a temperature of from 700 to 900° C. in a mixed gas stream containing an inert gas, carbon dioxide and water vapor. |
申请公布号 |
KR100573447(B1) |
申请公布日期 |
2006.04.26 |
申请号 |
KR20037003650 |
申请日期 |
2003.03.12 |
申请人 |
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发明人 |
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分类号 |
B01J20/20;B01J20/30;C01B31/10;C07C17/00;C07C17/389 |
主分类号 |
B01J20/20 |
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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