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    • 5. 发明授权
    • Optimized method for the production of catalyst supports based on silica gel and chromium catalysts supported on silica gel
    • 基于硅胶和载于硅胶上的铬催化剂生产催化剂载体的优化方法
    • US06645900B2
    • 2003-11-11
    • US10087012
    • 2002-02-28
    • Paulus de LangeGuido FunkAndreas DeckersPeter Kölle
    • Paulus de LangeGuido FunkAndreas DeckersPeter Kölle
    • B01J29035
    • C08F10/00B01J21/08B01J37/0072B01J37/036C08F4/02C08F4/24
    • The invention relates to a catalyst support and to a method for the production of the catalyst support comprising the following steps: a) production of a silicic acid hydrogel having a solids content of from 10 to 25% by weight (calculated as SiO2) whose particles are substantially spherical, b) extraction of the hydrogel particles with an alcohol until at least 60% of the water present in the hydrogel has been removed, c) drying of the resultant hydrogel until the residual alcohol content is less than 10% by weight (xerogel formation) at temperatures of ≧160° C. at atmospheric pressure using an inert entraining gas, d) setting of the desired particle size of the resultant xerogel, in which the hydrogel particles have a particle size of ≧8 mm before the extraction, and to a catalyst and to a method for the production of the catalyst by loading the catalyst support with a chromium compound. The invention also relates to a method for the production of polyolefins using the catalyst.
    • 本发明涉及一种催化剂载体和用于生产催化剂载体的方法,包括以下步骤:a)制备固体含量为10至25重量%(以SiO 2计)的硅酸水凝胶,其颗粒 基本上是球形的,b)用醇萃取水凝胶颗粒,直到水凝胶中存在的至少60%的水已被除去,c)干燥所得的水凝胶,直到残余的醇含量低于10重量% 干燥剂形成),在大气压下使用惰性夹带气体,在大气压力= 160℃的温度下,d)设定所得干燥剂的所需粒度,其中水凝胶颗粒的颗粒尺寸> 萃取和催化剂的制备方法,以及通过用铬化合物负载催化剂载体来生产催化剂的方法。 本发明还涉及使用该催化剂生产聚烯烃的方法。
    • 9. 发明申请
    • Apparatus for the Gas-Phase Polymerization of Olefins,in Particular Ethylene
    • 用于烯烃气相聚合的装置,特别是乙烯
    • US20070264171A1
    • 2007-11-15
    • US11667349
    • 2005-11-09
    • Eberhard HerrmannAxel SperberManfred HeckerRainer KarerKlaus BerhalterPaulus de LangeJorg HalpapCyrus Ahmadzade-Youssefi
    • Eberhard HerrmannAxel SperberManfred HeckerRainer KarerKlaus BerhalterPaulus de LangeJorg HalpapCyrus Ahmadzade-Youssefi
    • C08F2/34
    • B01J8/1872B01J8/0055B01J8/24B01J2208/00256B01J2208/00274B04C5/081C08F6/02C08F10/00C08F10/02C08F110/02C08L23/04C08F2/34
    • An apparatus for the polymerization of olefins, in particular ethylene, comprising a gas-phase fluidized-bed reactor (1), a recycle gas line (2) connected to the reactor for discharging and recirculating the recycle gas stream comprising the unpolymerized olefin and a cyclone (3) located in the recycle gas line for the reduction and precipitation of the solid particles entrained in the recycle gas from the reactor, with the cyclone comprising an upper section (3a) which has an essentially vertical central axis, whose wall extends along a rotationally symmetric body and which is provided with a cyclone inlet (4) arranged eccentrically relative to the central axis, a middle section (3b) which adjoins the upper section (3a) and whose wall extends along a rotationally symmetric body which tapers in a downward direction, a lower section (3c) for discharging the solid particles precipitated from the recycle gas which adjoins the middle section (3b) and whose wall extends along a rotationally symmetric body and a tube (5) extending essentially axially symmetrically down into the upper section and, if appropriate, the middle section for discharging the recycle gas which has been freed of the particles. According to the invention the ratio Hi of the distance hi from the lower end of the tube (5) extending downward into the cyclone to the intersection (6) of an imaginary extension of the wall of the downward-extending tube (5) with the wall of the middle section (3b) to the diameter di of the downward-extending tube (5) is from 3 to 8, in particular from 4 to 7.
    • 用于烯烃聚合的装置,特别是乙烯,包括气相流化床反应器(1),连接到反应器的再循环气体管线(2),用于排出和再循环包含未聚合烯烃的循环气流和 旋流器(3),其位于循环气体管线中,用于还原和沉淀夹带在来自反应器的再循环气体中的固体颗粒,旋风分离器包括具有基本上垂直的中心轴线的上部分(3a),其上壁延伸 沿着旋转对称体并且设置有相对于中心轴线偏心布置的旋风入口(4),邻近上部(3a)并且其壁沿旋转对称体延伸的中间部分(3b) 用于排出邻近中间部分(3b)并且其壁延伸的再循环气体沉淀的固体颗粒的下部分(3c) 旋转对称体和基本上轴向对称地延伸到上部的管(5)以及适当的中间部分用于排出已经没有颗粒的循环气体。 根据本发明,与从下游进入旋风分离器的管(5)的下端距离h i i的距离h i i的比例H i 向下延伸的管(5)的壁与中间部分(3b)的壁与向下延伸的管(5)的直径d iI i的假想延伸为3至 8,特别是4到7。
    • 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。