发明名称 |
PROCESS FOR RECOVERING UNREACTED PROPYLENE IN MASS POLYMERIZATION |
摘要 |
During the recovery of the unreacted propylene from the mother liquor obtained in the polymerization of liquid propylene, the major part of the propylene is evaporated in a first evaporation step at a low temperature and the remaining part is evaporated in a second evaporator at a high temperature. In this way an early agglomerization of the atactic and/or low-molecular weight polymer dissolved in the mother liquor and fouling of the heat exchanger tubes and/or of the column trays is avoided. |
申请公布号 |
ZA7902947(B) |
申请公布日期 |
1980.07.30 |
申请号 |
ZA19790002947 |
申请日期 |
1979.06.14 |
申请人 |
HOECHST AG |
发明人 |
MAYER G;FISCHER E;STRAMETZ H |
分类号 |
C08F6/00;C08F6/06;C08F6/28 |
主分类号 |
C08F6/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|