| 发明名称 |
PROCESS FOR PREPARING A PITCH FROM A TAR |
| 摘要 |
<p>PROCESS FOR PREPARING A PITCH FROM A TAR A process for preparing a pitch from a tar is disclosed, in which a tar is admixed with a nitrating agent and the admixed tar is heated to and at a temperature of 150 to 400.degree.C to be converted into the pitch.</p> |
| 申请公布号 |
CA1140881(A) |
申请公布日期 |
1983.02.08 |
| 申请号 |
CA19800348384 |
申请日期 |
1980.03.25 |
| 申请人 |
KUREHA KAGAKU KOGYO KABUSHIKI KAISHA;SUMITOMO METAL INDUSTRIES, LTD. |
发明人 |
SUNAMI, YOSHIHIKO;NISHIOKA, KUNIHIKO;IWAHASHI, TOURU |
| 分类号 |
C04B35/632;C01B31/00;C10C1/20;C10C3/02;D01F9/145;D01F9/15;(IPC1-7):10C3/02 |
主分类号 |
C04B35/632 |
| 代理机构 |
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代理人 |
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