发明名称 |
PROCESS FOR ISOLATING MESOPHASE PITCH |
摘要 |
The present invention provides a process for obtaining a very clean mesophase pitch from isotropic pitch. This invention utilizes a solvent fractionation process which does not involve the process steps, yield loss and waste generation associated with fluxing and filtering the isotropic pitch. Additionally, this invention provides a liquid/liquid extraction process that avoids the solids handling and the high temperatures and pressures of supercritical fluid extraction. Finally, this invention controls the hardness of the mesophase product.
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申请公布号 |
CA2202525(A1) |
申请公布日期 |
1996.05.17 |
申请号 |
CA19952202525 |
申请日期 |
1995.10.20 |
申请人 |
CONOCO INC. |
发明人 |
ROMINE, H. ERNEST;SOUTHARD, W. MARK;CAREL, MARK W.;NANNI, EDWARD J. |
分类号 |
C10C1/18;C10C3/00;C10C3/08;C10G53/06;(IPC1-7):C10C3/00;C10C3/06 |
主分类号 |
C10C1/18 |
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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