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    • 4. 发明授权
    • Preparation of homopolymers and copolymers of ethene by Phillips
catalysis
    • 通过菲利普斯催化制备乙烯的均聚物和共聚物
    • US4814308A
    • 1989-03-21
    • US110872
    • 1987-10-21
    • Rainer KonradGuido FunkJuergen Schmidt-ThuemmesRudolf Mueller-MallGuenther Schweier
    • Rainer KonradGuido FunkJuergen Schmidt-ThuemmesRudolf Mueller-MallGuenther Schweier
    • C08F4/02C08F4/24C08F4/48C08F4/62C08F10/02
    • C08F10/02
    • Ethene polymerization by Phillips catalysis is carried out using (1) a supported catalyst, which is laden with chromium, phosphorus and aluminum, and (2) a cocatalyst, (1) being obtained by a method in which (1.1) a catalyst intermediate laden with chromium, phosphorus and aluminum is prepared from a silicate carrier, a selected chromium compound, a selected phosphorus compound and a selected aluminum compound, and then (1.2) the catalyst intermediate is heated in an oxygen-containing gas stream. In this process, the component (1) used is one which is obtained by a method in which, in each case in a specific manner, (1.1) in a first stage, (1.1.1) first a suspension is prepared from (1.1.1.1) a finely divided silicate carrier and (1.1.1.2) an inert organic solvent, (1.1.2) then, (1.1.2.1) in an inert organic solvent, (1.1.2.2) an organic chromium compound is combined with (1.1.2.3) an aluminum trialkyl, (1.1.3) then (1.1.3.1) the suspension resulting from (1.1.1) is combined with (1.1.3.2) a phosphoric acid or phosphite and (1.1.3.3) the product obtained from (1.1.2), (1.1.4) finally, the suspension obtained in (1.1.3) is evaporated to dryness, and then (1.2) in a second stage, first (1.2.1) the intermediate obtained from (1.1) is treated with a stream of nitrogen, then (1.2.2) the intermediate obtained from (1.2.1) is heated in an oxygen-containing gas stream, and finally (1.2.3) the intermediate obtained from (1.2.2) is treated with a stream of nitrogen, and both a lithiumalkyl and a boronalkyl are used as (2).
    • 通过菲利普斯催化进行的乙烯聚合使用(1)负载催化剂,其载有铬,磷和铝,和(2)助催化剂,(1)通过以下方法获得:(1)将载体催化剂中间体 由硅酸盐载体,选择的铬化合物,选择的磷化合物和选择的铝化合物制备铬,磷和铝,然后(1.2)在含氧气流中加热催化剂中间体。 在该方法中,所使用的组分(1)是通过在每种情况下以具体方式(1.1)在第一阶段(1.1.1)中首先从(1.1)制备悬浮液的方法获得的组分 .1.1)精细分散的硅酸盐载体和(1.1.1.2)惰性有机溶剂(1.1.2)然后,(1.1.2.1)在惰性有机溶剂(1.1.2.2)中将有机铬化合物与( 1.1.2.3)三烷基铝(1.1.3)然后(1.1.3.1)将由(1.1.1)得到的悬浮液与(1.1.3.2)磷酸或亚磷酸酯和(1.1.3.3)得到的产物 从(1.1.2),(1.1.4)最终得到的(1.1.3)中得到的悬浮液蒸发至干,然后在第二阶段(1.2)中,首先(1.2.1)从(1.1 )用氮气流处理,然后(1.2.2)从(1.2.1)获得的中间体在含氧气流中加热,最后(1.2.3)从(1.2.2)得到的中间体 用氮气流和二氧化钛处理 和硼烷基用作(2)。