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    • 3. 发明公开
    • Method of removing catalyst from ethylene-alpha-olefin copolymer
    • Verfahren zur Entfernung von Katalysator vonÄthylen-Alphaolefincopolymeren。
    • EP0490672A2
    • 1992-06-17
    • EP91311555.6
    • 1991-12-12
    • SUMITOMO CHEMICAL COMPANY, LIMITED
    • Yamamoto, KeisakuWakatsuki, KizukuSugimori, KiyoyukiSaba, HayatoInagaki, Katsunari
    • C08F6/08C08F6/24
    • C08F6/02C08L23/00
    • After a copolymer of ethylene and an alpha-olefin of at least 3 carbon atoms (e.g. propylene) and optionally also a non-conjugated diene has been prepared with the use of a vanadium catalyst and an organoaluminum (e.g. alkyl) compound, the residual catalyst is removed from the polymerisation reaction mixture in a hydrocarbon solvent (e.g. hexane) by

      (a) when the catalyst also includes a halogenated ester compound, mixing the reaction mixture with stirring into an aqueous solution of an alkaline compound (e.g. hydroxide of Li, Na or K) in an amount to give an aqueous phase pH of at least 10; or
      (b) the halogenated ester compound being optional, oxidising the reaction mixture with an oxidising agent (preferably O₂), e.g. to convert the vanadium to pentavalent V, in an aqueous alkaline solution as in (a).

      The organic phase is then separated and washed with water and the polymer is recovered therefrom.
      The catalyst residue is thus reduced to very low levels, so that the copolymer is not affected thereby.
    • 在使用钒催化剂和有机铝(例如烷基)化合物制备乙烯和至少3个碳原子的α-烯烃(例如丙烯)和任选还有非共轭二烯的共聚物之后,残余催化剂 在烃溶剂(例如己烷)中从聚合反应混合物中除去(a)当催化剂还包含卤代酯化合物时,将反应混合物搅拌混合到碱性化合物(例如Li,Na的氢氧化物)的水溶液中 或K),其量使得水相pH至少为10; 或(b)任选的卤代酯化合物,用氧化剂(优选O 2)氧化反应混合物,例如 以如(a)那样在碱性水溶液中将钒转化成五价V。 然后分离有机相并用水洗涤并从中回收聚合物。 因此,催化剂残余物降低到非常低的水平,使得共聚物不受其影响。
    • 4. 发明公开
    • Catalyst for olefinic hydrocarbon polymerization and process for producing olefinic hydrocarbon polymer
    • 聚合反应的聚合反应。
    • EP0449583A2
    • 1991-10-02
    • EP91302638.1
    • 1991-03-26
    • SUMITOMO CHEMICAL COMPANY, LIMITED
    • Saba, HayatoYamamoto, KeisakuImai, AkioSugimori, KiyoyukiWakatsuki, Kizuku
    • C08F10/00C08F4/68
    • C08F10/00C08F4/68
    • An inert hydrocarbon catalyst is a mixture of 1 mol of (A) a reaction product obtained by reacting in an inert hydrocarbon solvent (a) 1 mol of at least one V compound VO(OR) m X 3-m wherein R is a hydrocarbon group, X a halogen atom and m a real number of from 0 to 3 (preferably 0), and (b) 0.5 to 1.4 mols of a dihydroxy hydrocarbon compound constituted of a C2-12 straight chain hydrocarbon skeleton having a hydroxyl group at each end terminal and at least one hydrocarbon branch bonded to said hydrocarbon skeleton, and 2 to 500 mols of (B) at least one organoaluminum compound represented by R′ n AℓX′ 3-n wherein R′ is a hydrocarbon group, X′ a halogen atom; and n a real number more than 0 and less than 3.
      The catalyst is dissolved in an aliphatic or alicyclic hydrocarbon solvent (e.g. hexane) to which is added an olefin (e.g. α-olefin alone or with ethylene and/or a polyene), to polymerise, at 0- 100°C under pressure of 5-50 kg/cm² to produce olefinic hydrocarbon polymers having narrow distributions of molecular weight and composition with high efficiency and high polymerization activity, without obstruction or contamination of equipment due to precipitation of catalyst.
    • 惰性烃催化剂是1摩尔(A)通过在惰性烃溶剂(a)中反应获得的反应产物的混合物,(a)1摩尔至少一种V化合物VO(OR)mX3-m,其中R是烃基, X为卤素原子,实数为0〜3(优选为0),(b)0.5〜1.4摩尔由末端具有羟基的C2-12直链烃骨架构成的二羟基烃化合物和 至少一个与所述烃骨架结合的烃支链,和2-500摩尔的(B)至少一种由R min nA 1 X min 3-n表示的有机铝化合物,其中R min是烃基,Xmin是卤素原子; 和大于0且小于3的实数。催化剂溶解在脂肪族或脂环族烃溶剂(例如己烷)中,向其中加入烯烃(例如单独的或与乙烯和/或多烯的α-烯烃),向 在0-100℃,5-50kg / cm 2的压力下聚合,得到具有分子量和组成分布窄,分子量高,聚合活性高的烯烃聚合物,不会因沉淀物而阻塞或污染设备 的催化剂。