发明名称 |
METHOD FOR PREPARING MESOPHASE CARBON MICROBEADS |
摘要 |
PURPOSE: Provided is a method for preparing mesophase carbon microbeads having uniform particle size distribution and less impurities with high yield. CONSTITUTION: The method comprises steps of (a) heat-treating raw pitch(7-12 wt.% of quinoline insolubles) under inert atmosphere at a temperature of 400 to 480 deg.C; and (b) extracting the heated reaction product of the step (a) with quinoline to recover particles, wherein more than 90 wt.% of the recovered particles are within the size range of 10 to 30 micrometers and the residual obtained after extraction is recycled as raw materials.
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申请公布号 |
KR20040045151(A) |
申请公布日期 |
2004.06.01 |
申请号 |
KR20020073185 |
申请日期 |
2002.11.22 |
申请人 |
KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY |
发明人 |
CHO, YONG SIK;LEE, JEONG MIN;PARK, JUNG HWAN;SEO, JEONG GWON |
分类号 |
C01B31/02;(IPC1-7):C01B31/02 |
主分类号 |
C01B31/02 |
代理机构 |
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