发明名称 |
PROCESS FOR THE TREATMENT OF CRUDE PHENOL FORMED IN THE LIQUEFACTION OF COAL |
摘要 |
<p>1. A process for the treatment of crude phenol which has been recovered in accordance with the phenoraffin process from phenol-containing fractions from the liquefaction of coal, characterized in that the phenols are separated by distillation from high-boiling accompanying substances, reacted with diluted acid and subsequently subjected to a fractionated distillation and the phenol and o-cresol fractions obtained are subjected to crystallization.</p> |
申请公布号 |
EP0143472(B1) |
申请公布日期 |
1989.04.05 |
申请号 |
EP19840201157 |
申请日期 |
1984.08.10 |
申请人 |
RUTGERSWERKE AKTIENGESELLSCHAFT |
发明人 |
SPENGLER, HANS, DR.;STOLZENBERG, KONRAD, DR. |
分类号 |
C07C39/04;C07C37/68;C07C37/70;C07C37/84;(IPC1-7):C07C37/74;C07C39/07 |
主分类号 |
C07C39/04 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|