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    • 1. 发明专利
    • METHOD FOR PRODUCING α-OLEFIN LOW POLYMER
    • 生产α-烯烃低聚物的方法
    • JP2014177423A
    • 2014-09-25
    • JP2013052189
    • 2013-03-14
    • Mitsubishi Chemicals Corp三菱化学株式会社
    • EMOTO HIROKI
    • C07C2/26C07B61/00C07C11/107
    • PROBLEM TO BE SOLVED: To provide a long-term continuous operation method in a production process of an α-olefin low polymer.SOLUTION: In a method for producing an α-olefin low polymer by performing a low polymerization reaction of an α-olefin in a reaction solvent in the presence of a catalyst in a reactor, a portion of gas of a gas phase part in the reactor is introduced into a heat exchanger, and when a condensate and a non-condensable gas, obtained from an outlet of the heat exchanger, and the reaction solvent, obtained by separating a reaction solution obtained from an outlet of the reactor, are circulation supplied to the reactor, the condensate and/or the reaction solvent are atomized and supplied to the gas phase part of the reactor, and the non-condensable gas is supplied to a liquid phase part of the reactor.
    • 要解决的问题:在α-烯烃低聚物的制造方法中提供长期的连续操作方法。溶液:通过进行α-烯烃的低聚合反应来制造α-烯烃低聚物的方法 在反应器中的催化剂存在下的反应溶剂中,将反应器中的气相部分的气体的一部分引入热交换器中,并且当从所述反应器的出口获得的冷凝物和不可冷凝气体 热交换器和通过将从反应器出口获得的反应溶液分离得到的反应溶剂循环供给到反应器中,将冷凝物和/或反应溶剂雾化并供应到反应器的气相部分, 并且不可冷凝气体被供应到反应器的液相部分。
    • 4. 发明专利
    • Method for manufacturing ethylene low polymer
    • 制造乙烯低聚物的方法
    • JP2008178873A
    • 2008-08-07
    • JP2007341323
    • 2007-12-28
    • Mitsubishi Chemicals Corp三菱化学株式会社
    • YOKOYAMA KAZUYUKIEMOTO HIROKI
    • B01J31/14C07B61/00C07C2/26C07C7/04C07C11/02C07C11/107C08F4/78C08F6/06
    • C07C2/32B01D1/225B01D3/143B01D3/148C07C7/04C07C2531/14C07C2531/22C08F10/00C08F110/02C08F210/16Y02P20/52C07C11/107C07C11/02C08F4/69C08F2500/02C08F210/14
    • PROBLEM TO BE SOLVED: To provide a method for manufacturing an ethylene low polymer by using a chromium-based catalyst, the method for recovering a decen, under the condition that a decomposition product of the chromium-based catalyst or the like is hardly produced, from a high boiler in which an ethylene low polymer is separated. SOLUTION: An ethylene low polymer and a high boiler, which contains a chromium-based catalyst, a decen, a tetradecen and a by-product polymer are separated by distillation from a reaction liquid which contains the ethylene low polymer obtained by an ethylene low polymerization reaction using the chromium-based catalyst. Then, the high boiler is concentrated with an evaporation separator 70 and a liquid storage tank 80 so that the concentration of the tetradecen may be at least 5 wt.%, and the decen is separated by evaporation so that the following general formula (1) may be satisfied: θ/1.2 EXP(850/T)≤1 (1), wherein T is a temperature of a remaining solution in the evaporation separator 70, and θ is resident time of the remaining solution in the evaporation separator 70. COPYRIGHT: (C)2008,JPO&INPIT
    • 待解决的问题:为了提供使用铬系催化剂制造乙烯低聚物的方法,在铬系催化剂等的分解产物为 几乎不从分离乙烯低聚物的高锅炉中产生。 解决方案:含有铬基催化剂,十氢化萘,十四碳烯和副产物聚合物的乙烯低聚物和高锅炉通过蒸馏从包含由 乙烯低聚合反应使用铬基催化剂。 然后,用蒸发分离器70和液体储罐80浓缩高锅炉,使得十四碳烯的浓度可以至少为5重量%,并且通过蒸发分离滗析物,使得以下通式(1) 可以满足:θ/ 1.2 EXP(850 / T)≤1(1)其中T是蒸发分离器70中剩余溶液的温度,θ是蒸发分离器70中剩余溶液的驻留时间。 P>版权所有(C)2008,JPO&INPIT