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1.发明申请SUPPORTED METAL OXIDE DOUBLE ACTIVE CENTER POLYETHYLENE CATALYST, PROCESS FOR PREPARING THE SAME AND USE THEREOF 有权支持金属氧化物双活性中心聚乙烯催化剂，其制备方法和用途公开(公告)号：US20150065667A1
公开(公告)日：2015-03-05
申请号：US14395487
申请日：2013-04-19
Inventor： Ruihua Cheng , Boping Liu , Xin Xue , Yun He , Xuan Dong , Xuelian He , Zhen Liu , Weiwei Liu , Lisong Wang , Qiaoqiao Sun
CPC classification number: C08F4/22 , C08F4/025 , C08F4/69 , C08F10/02 , Y02P20/52 , C08F110/02 , C08F2500/04 , C08F210/16 , C08F210/14 , C08F4/68
Abstract: The present invention relates to a supported hybrid vanadium-chromium-based catalyst, characterized in the catalyst is supported on a porous inorganic carrier and a V active site and a inorganic Cr active site are present on the porous inorganic carrier at the same time. The present invention further relates to a process for producing a supported hybrid vanadium-chromium-based catalyst. The invention also provides the preparation method of the catalyst, titanium or fluorine to compounds, vanadium salt and chromium salt according to the proportion, different methods of sequence and load on the inorganic carrier, after high temperature roasting, still can further add organic metal catalyst promoter prereduction activation treatment on it. The catalyst of the present invention can be used for producing ethylene homopolymers and ethylene/α-olefin copolymers. The hybrid vanadium-chromium-based catalyst can have high activity and produce polyethylene polymers having the properties of broad molecular weight distribution (Part of the products are bimodal distribution) and excellent α-olefin copolymerization characteristic.
Abstract translation: 本发明涉及一种负载型混合钒 - 铬基催化剂，其特征在于催化剂负载在多孔无机载体上，V活性位点和无机Cr活性位点同时存在于多孔无机载体上。 本发明还涉及一种负载型混合钒 - 铬系催化剂的制造方法。 本发明还提供了催化剂，钛或氟对化合物，钒盐和铬盐的制备方法，按比例，不同的方法对无机载体的顺序和负荷进行了高温焙烧后，还可以进一步加入有机金属催化剂 启动子预还原激活治疗。 本发明的催化剂可用于生产乙烯均聚物和乙烯/α-烯烃共聚物。 混合钒 - 铬基催化剂可以具有高活性，并且生产具有宽分子量分布性质的聚乙烯聚合物（部分产物是双峰分布）和优异的α-烯烃共聚特性。
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公开(公告)号：US09725530B2
公开(公告)日：2017-08-08
申请号：US14395487
申请日：2013-04-19
Inventor： Ruihua Cheng , Boping Liu , Xin Xue , Yun He , Xuan Dong , Xuelian He , Zhen Liu , Weiwei Liu , Lisong Wang , Qiaoqiao Sun
CPC classification number: C08F4/22 , C08F4/025 , C08F4/69 , C08F10/02 , Y02P20/52 , C08F110/02 , C08F2500/04 , C08F210/16 , C08F210/14 , C08F4/68
Abstract: The present invention relates to a supported hybrid vanadium-chromium-based catalyst, characterized in the catalyst is supported on a porous inorganic carrier and a V active site and a inorganic Cr active site are present on the porous inorganic carrier at the same time. The present invention further relates to a process for producing a supported hybrid vanadium-chromium-based catalyst. The invention also provides the preparation method of the catalyst, titanium or fluorine compounds, vanadium salt and chromium salt according to the proportion, different methods of sequence and load on the inorganic carrier, after high temperature roasting, still can further add organic metal catalyst promoter prereduction activation treatment on it. The catalyst of the present invention can be used for producing ethylene homopolymers and ethylene/α-olefin copolymers. The hybrid vanadium-chromium-based catalyst can have high activity and produce polyethylene polymers having the properties of broad molecular weight distribution (Part of the products are bimodal distribution) and excellent α-olefin copolymerization characteristic.
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