Isomerization of olefins
    2.
    发明授权
    Isomerization of olefins 失效
    烯烃异构化

    公开(公告)号:US3928485A

    公开(公告)日:1975-12-23

    申请号:US42994874

    申请日:1974-01-02

    摘要: In the isomerization of olefins by contacting a linear, isomerizable olefinic hydrocarbon with a catalyst to the corresponding linear, isomerized olefinic hydrocarbon, a process wherein the catalyst is an alkaline catalyst composition prepared by heating an alkali metal, an alkali metal hydroxide and alumina at a temperature higher than the melting point of the alkali metal. By the use of the said catalyst composition, the isomerization can be accomplished much more efficiently, compared with the case of using conventional catalyst compositions.

    摘要翻译: 在通过使线性异构化的烯烃与催化剂接触到相应的线性异构化烯烃的烯烃的异构化中,其中催化剂是通过在碱金属,碱金属氢氧化物和氧化铝上加热制备的碱性催化剂组合物的方法 温度高于碱金属的熔点。 与使用常规催化剂组合物的情况相比,通过使用所述催化剂组合物,可以更有效地实现异构化。

    Process for preparing alkyl trans-chrysanthemate
    3.
    发明授权
    Process for preparing alkyl trans-chrysanthemate 失效
    制备烷基异喹啉的方法

    公开(公告)号:US3906026A

    公开(公告)日:1975-09-16

    申请号:US35898873

    申请日:1973-05-10

    CPC分类号: B01J23/04

    摘要: A process for preparing alkyl trans-chrysanthemate which comprises treating the corresponding cis-isomer with a catalyst selected from the group consisting of (1) an alkali metal catalyst, (2) an alkaline catalyst composition prepared by reacting an alkali metal, an alkali metal hydroxide and alumina at a temperature higher than the melting point of the alkali metal and (3) an alkali metal hydride catalyst. By this process, the objective trans-isomer is obtainable in an excellent yield with ease.

    摘要翻译: 一种制备烷基异氰酸酯的方法,其包括用选自(1)碱金属催化剂的催化剂处理相应的顺式异构体,(2)碱金属催化剂组合物,碱金属,碱金属 氢氧化物和氧化铝在高于碱金属的熔点的温度和(3)碱金属氢化物催化剂。 通过该方法,可以容易地以良好的收率获得目标反式异构体。