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    • 1. 发明专利
    • Method for oligomerizing butene
    • 低通滤波方法
    • JP2006328068A
    • 2006-12-07
    • JP2006142033
    • 2006-05-22
    • Oxeno Olefinchemie Gmbhオクセノ オレフィンヒェミー ゲゼルシャフト ミット ベシュレンクテル ハフツングOXENO Olefinchemie GmbH
    • KERKER LOTHARRIX ARMINHOEPER FRANKMALZKORN RAINERROETTGER DIRK
    • C07C2/58C07B61/00C07C11/02
    • C07C2/24C07C2523/755Y02A20/402C07C11/02
    • PROBLEM TO BE SOLVED: To provide a method for oligomerizing butene in which a raw material used has a sufficient butene concentration and hardly has catalyst poison. SOLUTION: The method for oligomerizing butene in the presence of a transition metal catalyst comprises using a hydrocarbon stream, in which all or a part of a starting material is composed of a hydrocarbon stream (1) and mainly contains butene, obtained from a hydrocarbon stream (2) having a small amount of butene as the starting material. The method for oligomerizing the butene comprises (a) carrying out extraction distillation of a saturated and unsaturated 4C hydrocarbon-containing stream (2) by using a polar extract to provide a tower top fraction (3) rich in a saturated hydrocarbon and a tower bottom fraction (4) containing rich in an unsaturated hydrocarbon and containing a polar extract, (b) separating the tower bottom fraction (4) into a tower top fraction (5) containing butene as the unsaturated hydrocarbon and a tower bottom fraction (6) containing the polar extract, (c) washing at least a part of the tower top fraction (5) with water or an aqueous solution and (d) drying a part of the tower top fraction (5) treated with the step (c) to provide the butene-containing hydrocarbon stream (1) hardly containing water. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供一种丁烯低聚方法,其中使用的原料具有足够的丁烯浓度并且几乎不具有催化剂毒物。 解决方案:在过渡金属催化剂存在下使丁烯低聚的方法包括使用烃流,其中全部或部分原料由烃流(1)组成,主要含有丁烯,其由 具有少量丁烯作为原料的烃流(2)。 用于使丁烯低聚的方法包括(a)通过使用极性提取物进行饱和和不饱和4C烃流(2)的提取蒸馏,以提供富含饱和烃的塔顶级分(3)和塔底 含有富含不饱和烃并含有极性提取物的级分(4),(b)将塔底馏分(4)分离成含有不饱和烃的丁烯的塔顶馏分(5)和含有 所述极性提取物,(c)用水或水溶液洗涤所述塔顶馏分(5)的至少一部分,和(d)干燥用步骤(c)处理的塔顶馏分(5)的一部分,以提供 含有烯烃的烃流(1)几乎不含水。 版权所有(C)2007,JPO&INPIT