发明名称 |
POLYMER RECOVERY FROM SOLUTION |
摘要 |
POLYMER RECOVERY FROM SOLUTION A process for removing substantial quantities of volatile liquid e.g. hydrocarbon from a mixture of polymer and such liquid is provided. This process consists of the initial step of introducing the mixture, and a liquid which is immiscible with the polymer, into a mixing/kneading zone provided with heated heat transfer surfaces having a temperature higher than the boiling point of the lowest boiling liquid component in the mixing/kneading zone. The mixture and the immiscible liquid are subjected to a period of continuous mixing and kneading within the mixing/kneading zone, to bring the mixture into continuously moving contact with the heat transfer surfaces. During this period of continuous mixing/kneading, the heated heat transfer surfaces are repeatedly mechanically cleaned to prevent buildup of solid polymer thereon. Volatilized liquid is vented from the mixing/kneading zone during the period of continuous mixing and kneading, and the polymer and residual liquid is subsequently discharged from the mixing/kneading zone. |
申请公布号 |
CA1297619(C) |
申请公布日期 |
1992.03.17 |
申请号 |
CA19870546503 |
申请日期 |
1987.09.09 |
申请人 |
POLYSAR LIMITED |
发明人 |
PADLIYA, DILIPKUMAR;SHEPHERD, KENNETH C.;REED, JEFFERY T. |
分类号 |
B01D11/02;B01F7/04;B29B7/84;B29C47/10;B29C47/76;C08F6/12 |
主分类号 |
B01D11/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|