发明名称 |
Process for the preparation of carbon fibers |
摘要 |
A process for the preparation of carbon fibers, including the steps of: subjecting a raw material oil to thermal cracking conditions at a temperature of between 400 DEG to 500 DEG C. while removing cracked, light hydrocarbon components to obtain a pitch product containing at least 5 weight % of mesophase and not more than 10 weight % of light hydrocarbon components with a boiling point at 60 mmHg (absolute) of 300 DEG C. or less and having a softening point of between 140 DEG and 220 DEG C., the raw material oil having a boiling point of at least 500 DEG C. and containing at least 30 weight % of a residual oil which has a boiling point of at least 500 DEG C. and a metal content of at least 200 weight ppm and which is derived from a napthene base and/or intermediate base petroleum crude; removing the mesophase having a particle size of more than 10 mu m from the pitch product to obtain a substantially mesophase-free carbonaceous pitch; spinning the substantially mesophase-free pitch into fibers; rendering the spun fibers infusible; and carbonizing the infusible fibers.
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申请公布号 |
US4554148(A) |
申请公布日期 |
1985.11.19 |
申请号 |
US19840611152 |
申请日期 |
1984.05.17 |
申请人 |
FUJI STANDARD RESEARCH, INC. |
发明人 |
GOMI, SHIMPEI;ARAI, TOMIO;MOGI, FUMIO;MIURA, KUNIO;OTANI, SUGIO |
分类号 |
D01F9/155;C10C3/00;D01F9/145;(IPC1-7):D01F9/12 |
主分类号 |
D01F9/155 |
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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