发明名称 |
Process for recovering a transition metal compound |
摘要 |
The present application aims to provide a process for producing a solid polymerization catalyst component, including the steps of (A) producing a solution with a transition metal compound and a solvent; (B) solidifying a component with the transition metal compound to produce the solid polymerization catalyst component in a solidification stage; (C) recovering from the solidification stage a liquid stream containing a minor amount of the transition metal compound dissolved therein and a solid catalyst stream; and (D) recovering the transition metal component from the liquid stream, characterized in that step (D) may include concentrating the solution to produce a first product stream including the solvent and being essentially free of the transition metal compound and a second product stream including the solvent and the transition metal compound, characterized in that the concentration is conducted within a temperature range of from 0 to 100 degrees Celsius. |
申请公布号 |
US8603933(B2) |
申请公布日期 |
2013.12.10 |
申请号 |
US201013504974 |
申请日期 |
2010.11.11 |
申请人 |
ELO PERTTI;VIJAY SAMEER;HAKALA KIMMO;RAUTIO SOILE;LEHTINIEMI ISMO;BOREALIS AG |
发明人 |
ELO PERTTI;VIJAY SAMEER;HAKALA KIMMO;RAUTIO SOILE;LEHTINIEMI ISMO |
分类号 |
B01J37/00;B01J35/08;B01J37/03;C08F4/64;C08F4/6592 |
主分类号 |
B01J37/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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