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    • 97. 发明专利
    • Preparation of 4-methyl-1-pentene
    • 4-甲基-1-丁烯的制备
    • JPS57126426A
    • 1982-08-06
    • JP957981
    • 1981-01-27
    • Nippon Oil Co Ltd
    • IMAI HIROSUKEMATSUNO MITSUOKUDOU MICHIO
    • C07C2/02B01J23/00B01J23/02B01J23/04B01J27/24C07B61/00C07C1/00C07C2/10C07C2/24C07C11/113C07C67/00
    • C07C2/10B01J23/02B01J27/24C07C2/24C07C2521/04C07C2523/04C07C2531/02C07C11/113
    • PURPOSE: To prepare the titled compound in high yield and selectivity, by dimerizing propylene using a catalyst comprising Na or sodium amide supported on a carrier composed of K
      2 O and Al
      2 O
      3 or a catalyst obtained by the preliminary hydrogen treatment of the above catalyst.
      CONSTITUTION: 4-Methyl-1-pentene is prepared by the dimerization of propylene using a catalyst comprising Na or sodium amide supported on a carrier of formula K
      2 O.xAl
      2 O
      3 (0.5≤x≤11) or a catalyst obtained by the preliminary hydrogen treatment of the above catalyst. The catalyst contains increased amount of Na supported on the carrier and enables to improve the reaction rate and the selectivity of 4-methyl-1-pentene remarkably and to maintain the activity and selectivity for an extremely long period. The induction period at the initiation of the reaction is negligible. The process is suitable to the reaction under perfect mixing as well as the flow reaction using a fixed bed catalyst.
      COPYRIGHT: (C)1982,JPO&Japio
    • 目的:为了以高产率和选择性制备标题化合物,可以使用负载在由K 2 O和Al 2 O 3构成的载体上的包含Na或酰胺的催化剂或通过上述催化剂的预氢处理获得的催化剂使丙烯二聚化。 构成:4-甲基-1-戊烯是通过使用包含负载在式K 2 O x Al 2 O 3载体上的Na或钠酰胺(0.5≤x≤11)的催化剂或通过预备氢气获得的催化剂 处理上述催化剂。 该催化剂含有负载在载体上的Na的量增加,能够显着提高4-甲基-1-戊烯的反应速度和选择性,并保持极长时间的活性和选择性。 反应开始时的诱导期可以忽略不计。 该方法适用于完全混合下的反应以及使用固定床催化剂的流动反应。