发明申请
WO2021170552A1 PROCESS FOR PRODUCING ALPHA-OLEFIN POLYMERS IN A MULTISTAGE POLYMERIZATION PROCESS
审中-公开
基本信息:
- 专利标题： PROCESS FOR PRODUCING ALPHA-OLEFIN POLYMERS IN A MULTISTAGE POLYMERIZATION PROCESS
- 申请号：PCT/EP2021/054379 申请日：2021-02-23
- 公开(公告)号：WO2021170552A1 公开(公告)日：2021-09-02
- 发明人： LESKINEN, Pauli , ELOVAINIO, Erno , KIVELÄ, Jouni , NYFORS, Klaus
- 申请人： BOREALIS AG
- 申请人地址： Wagramer Strasse 17-19
- 专利权人： BOREALIS AG
- 当前专利权人： BOREALIS AG
- 当前专利权人地址： Wagramer Strasse 17-19
- 代理机构： KADOR & PARTNER PART MBB
- 优先权： EP20159078.3 2020-02-24
- 主分类号： C08F2/01
- IPC分类号： C08F2/01 ; C08F2/34 ; C08F210/06 ; C08F210/16
摘要：
The present invention relates to a process for producing alpha-olefin polymers in a multistage polymerization process which includes at least two gas phase polymerization reactors, wherein unreacted gas withdrawn from the second gas phase polymerization reactor is compressed in a compressor and said compressed gas is fed via a conveying gas line into an outlet between a first outlet vessel downstream of the first gas phase polymerization reactor and said second gas phase polymerisation reactor. Such a process can alleviate problems of malfunction, disturbances or plugging of the transfer lines and enables higher productivity and considerable saving of energy and equipment cost. Moreover, the production of alpha-olefin polymers with varying and tailored properties is possible.
IPC结构图谱:
| C | 化学；冶金 |
| --C08 | 有机高分子化合物；其制备或化学加工；以其为基料的组合物 |
| ----C08F | 仅用碳—碳不饱和键反应得到的高分子化合物 |
| ------C08F2/00 | 聚合工艺过程 |
| --------C08F2/01 | .以所用聚合装置的特性为特征的 |