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    • 8. 发明授权
    • Method for producing an ethylene copolymer
    • 乙烯共聚物的制造方法
    • US06586540B1
    • 2003-07-01
    • US09889607
    • 2001-07-19
    • Paulus De LangeVolker BillertBernd BrunnerWerner RitterAndreas Deckers
    • Paulus De LangeVolker BillertBernd BrunnerWerner RitterAndreas Deckers
    • C08F21016
    • C08F210/16C08F2/002C08F210/14C08F2500/12C08F2500/07C08F210/08
    • The invention relates to a method for the production of copolymer based on ethylene by continuous copolymerization of ethylene and comonomer in a reactor in the presence of a catalyst. In this method, in a first step of the copolymerization, a mixture comprising ethylene and comonomer of such a composition that a copolymer-containing coating deposits in the reactor is metered into the reactor and/or generated in the reactor, and, in a second step, the concentration of the comonomer in the metered-in mixture and/or in the mixture generated in the reactor is reduced sufficiently and/or the concentration of the ethylene in the metered-in mixture and/or in the mixture generated in the reactor is increased sufficiently that the coating is removed from the reactor either partially or completely. The method has the advantage that the production of copolymer does not have to be interrupted during cleaning of the reactor.
    • 本发明涉及在反应器中在催化剂存在下通过乙烯和共聚单体的连续共聚制备基于乙烯的共聚物的方法。 在该方法中,在共聚的第一步骤中,将含有共聚物的涂层沉积在反应器中的组合物的乙烯和共聚单体的混合物计量加入反应器和/或在反应器中产生,并且在第二步中 步骤中,在计量混合物中和/或在反应器中产生的混合物中的共聚单体的浓度被充分降低和/或在计量混合物中和/或在反应器中产生的混合物中的乙烯浓度 充分增加,使得涂层部分或完全从反应器中除去。 该方法的优点在于,在反应器的清洗期间不必中断共聚物的制备。
    • 10. 发明申请
    • Apparatus and Process for the Gas-Phase Polymerization of Olefins
    • 用于烯烃气相聚合的装置和方法
    • US20080014128A1
    • 2008-01-17
    • US11667417
    • 2005-11-08
    • Eberhard HerrmannManfred HeckerRainer KarerKlaus BerhalterPaulus de LangeJorg HalpapCyrus Ahmadzade-Youssefi
    • Eberhard HerrmannManfred HeckerRainer KarerKlaus BerhalterPaulus de LangeJorg HalpapCyrus Ahmadzade-Youssefi
    • C08F10/00B01J19/18
    • B01J8/003B01J8/006B01J8/1872B01J2208/00256B01J2208/00274B01J2208/00761C08F10/00C08F110/02C08F2/34
    • Apparatus for the polymerization of olefins, in particular ethylene, comprising a gas-phase fluidized-bed reactor (1), a product offtake line (15) for taking polymer particles either continuously or discontinuously from the reactor (1), which line (15) is connected to a depressurization vessel (2) for separating polymer particles and gas, a recycle gas filter (3) for freeing the gas of entrained fine particles connected to the depressurization vessel (2), a compressor which compresses the gas which has been freed of fine particles and recirculates it into the reactor (1), with the recycle gas filter (3) having an inlet chamber (4) provided with a gas inlet (6), an outlet chamber (5) provided with a gas outlet (7), an essentially vertical sheet-like filter medium (9) for retaining the fine particles which separates the inlet chamber (4) from the outlet chamber (5) and a particle outlet (8). The inlet chamber (4) has a dividing wall (10) which is arranged essentially parallel to the filter medium (9) and separates the inlet chamber (4) into an inflow region (4a), which is connected to the gas inlet (6), and a filter region (4b) in which the filter medium is located and has an upper opening and a lower opening which are dimensioned so that from 60 to 90% of the volume flow flows through the upper opening so that flow along the filter medium (9) from the top downward results.
    • 用于烯烃聚合的设备,特别是乙烯,包括气相流化床反应器(1),用于从反应器(1)连续或不连续地获取聚合物颗粒的出口管线(15),该管线(15) )连接到用于分离聚合物颗粒和气体的减压容器(2),用于释放连接到减压容器(2)的夹带的细颗粒的气体的循环气体过滤器(3),压缩已经被 释放细颗粒并将其再循环到反应器(1)中,循环气体过滤器(3)具有设置有气体入口(6)的入口室(4),设置有气体出口的出口室(5) 7),用于保持将入口室(4)与出口室(5)分离的细颗粒和颗粒出口(8)的基本垂直的片状过滤介质(9)。 入口室(4)具有基本上与过滤介质(9)平行布置的分隔壁(10),并将入口室(4)分离成入口区域(4a),该入口区域连接到气体入口 6)和过滤器区域(4b),其中过滤介质位于并具有上开口和下开口,其尺寸使得体积流量的60%至90%流过上开口,使得沿着 过滤介质(9)从顶部向下的结果。