基本信息:
- 专利标题： POLYOLEFIN PRODUCTION WITH CHROMIUM-BASED CATALYSTS
- 申请号：EP20209301.9 申请日：2015-09-01
- 公开(公告)号：EP3831476A1 公开(公告)日：2021-06-09
- 发明人： MOORHOUSE, John H. , CANN, Kevin J. , GOODE, Mark G. , GROSS, Kevin R.
- 申请人： Univation Technologies, LLC
- 申请人地址： US Houston, TX 77056 5555 San Felipe Suite 1950
- 代理机构： Boult Wade Tennant LLP
- 优先权： US201462044716 P 20140902
- 主分类号： B01J23/26
- IPC分类号： B01J23/26 ; C08F4/69 ; C08F210/16 ; B01J37/16
摘要：
A method of preparing a chromium-based catalyst for the polymerization of an olefin into a polyolefin, the method comprising:
feeding a chromium-based catalyst to a mix vessel;
introducing a stream comprising a reducing agent into the mix vessel through a conduit extending into a nozzle of the mix vessel; and
agitating a mixture of the chromium-based catalyst, the reducing agent, and a solvent in the mix vessel to promote contact of the reducing agent with the chromium-based catalyst to give a reduced chromium-based catalyst.
feeding a chromium-based catalyst to a mix vessel;
introducing a stream comprising a reducing agent into the mix vessel through a conduit extending into a nozzle of the mix vessel; and
agitating a mixture of the chromium-based catalyst, the reducing agent, and a solvent in the mix vessel to promote contact of the reducing agent with the chromium-based catalyst to give a reduced chromium-based catalyst.
公开/授权文献:
IPC结构图谱:
| B | 作业；运输 |
| --B01 | 一般的物理或化学的方法或装置 |
| ----B01J | 化学或物理方法，例如，催化作用、胶体化学；其有关设备 |
| ------B01J23/00 | 不包含在B01J21/00组中的，包含金属或金属氧化物或氢氧化物的催化剂 |
| --------B01J23/16 | .砷、锑、铋、钒、铌、钽、钋、铬、钼、钨、锰、锝或铼的 |
| ----------B01J23/20 | ..钒、铌或钽 |
| ------------B01J23/26 | ...铬 |