基本信息:
- 专利标题: A METHOD OF CATALYST TRANSITIONS IN OLEFIN POLYMERIZATIONS
- 专利标题(中):烯烃聚合中催化转化的方法
- 申请号:PCT/EP2010/051039 申请日:2010-01-29
- 公开(公告)号:WO2010086392A1 公开(公告)日:2010-08-05
- 发明人: LESKINEN, Pauli , TUOMINEN, Olli
- 申请人: BOREALIS AG , LESKINEN, Pauli , TUOMINEN, Olli
- 申请人地址: Wagramer Strasse 17-19 A-1220 Vienna AT
- 专利权人: BOREALIS AG,LESKINEN, Pauli,TUOMINEN, Olli
- 当前专利权人: BOREALIS AG,LESKINEN, Pauli,TUOMINEN, Olli
- 当前专利权人地址: Wagramer Strasse 17-19 A-1220 Vienna AT
- 代理机构: CAMPBELL, Neil
- 优先权: EP09151716.9 20090130
- 主分类号: C08F2/00
- IPC分类号: C08F2/00 ; C08F10/06 ; C08F4/649 ; C08F4/6592 ; C08F4/654
摘要:
A method for transitioning between two different catalysts during a continuous olefin polymerizations, more specifically in the production of polypropylene homo- or copolymers in a continuous slurry/gas phase polymerization reaction with a prior pre-polymerization reaction, said method comprises the steps of: a) discontinuing the feed of the first catalyst into the pre-polymerization reactor and then b) introducing the second catalyst into the prepolymerization reactor, c) adapting the reaction conditions in the prepolymerization reactor, the slurry reactor as well as in the subsequent gas phase reactor, wherein the transition is performed between a Ziegler-Natta catalyst and an self-supported, solid metallocene catalyst, prepared by using an emulsion/solidification technology or vice versa and, whereby the transition is performed in the absence of any additional agent which deactivates or kills the catalyst.
摘要(中):
一种在连续烯烃聚合过程中在两种不同催化剂之间转变的方法,更具体地说是在具有先前预聚合反应的连续浆料/气相聚合反应中制备聚丙烯均聚物或共聚物的方法,所述方法包括以下步骤: )停止将第一催化剂进料到预聚合反应器中,然后b)将第二催化剂引入预聚合反应器中,c)使预聚合反应器,浆料反应器以及后续气相反应器中的反应条件适应 ,其中所述转变在齐格勒 - 纳塔催化剂和通过使用乳液/凝固技术制备的反应性自支撑的固体茂金属催化剂之间进行,并且由此在不存在任何其它失活的附加试剂或 杀死催化剂。
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 |