利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

4 条记录 (耗时 0.011 秒)

    Method for preparation of styrene oxides
    2.
    发明公开
    Method for preparation of styrene oxides 失效
    Verfahren zur Herstellung von Styroloxiden。

    公开(公告)号：EP0170836A1

    公开(公告)日：1986-02-12

    申请号：EP85107431.0

    申请日：1985-06-14

    申请人： MITSUBISHI PETROCHEMICAL CO., LTD.

    发明人： Imanari, Makoto ,  Iwane, Hiroshi ,  Ohtaka, Satoshi ,  Aoki, Tadmichi

    IPC分类号： C07D301/19 ,  C07D303/04 ,  B01J21/02

    CPC分类号： C07D303/04

    摘要： A method for preparation of styrene oxides is described, characterized by reacting a styrene and an organic peroxide in the presence of an epoxidation catalyst and a boron compound. The efficiency of the process is excellently high, or the selectivity of the formed styrene oxides to the used styrenes and the selectivity thereof to the used organic peroxides are extremely high, and the conversion of the used organic peroxides is also extremely high. In addition, the epoxidation speed is sufficiently high.

    摘要翻译： 描述了制备苯乙烯氧化物的方法，其特征在于在环氧化催化剂和硼化合物的存在下使苯乙烯和有机过氧化物反应。 该方法的效率非常高，或者所形成的苯乙烯氧化物对所用苯乙烯的选择性及其对所用的有机过氧化物的选择性非常高，并且所用的有机过氧化物的转化率也非常高。 此外，环氧化速度足够高。

    Process for preparing para-cumylphenol
    3.
    发明公开
    Process for preparing para-cumylphenol 失效
    Verfahren zur Herstellung von Para-Cumylphenol。

    公开(公告)号：EP0360874A1

    公开(公告)日：1990-04-04

    申请号：EP88113433.2

    申请日：1988-08-18

    申请人： MITSUBISHI PETROCHEMICAL CO., LTD.

    发明人： Imanari, Makoto ,  Iwane, Hiroshi ,  Sugawara, Takahiro ,  Ohtaka, Satoshi ,  Inaba, Masashi ,  Kataoka, Mitsugi

    IPC分类号： C07C37/14 ,  C07C37/11

    CPC分类号： C07C37/14 ,  C07C39/15

    摘要： A process for preparing p-cumylphenol which comprises reacting phenol and α-methylstyrene in the presence of an inorganic solid acid catalyst having an acid point of an acid strength Ho of up to -3, for example activated clay, and recovering the aimed p-­cumylphenol from the reaction mixture thus obtained by distilling the same while introducing an inert gas such as nitrogen and/or steam into the distillation system is disclosed. The p-cumylphenol thus obtained has a high purity and an improved color compared with those obtained by conventional methods.

    摘要翻译： 一种制备对枯基苯酚的方法，其包括在具有至多-3的酸强度Ho的酸点例如活性粘土的无机固体酸催化剂存在下使苯酚和α-甲基苯乙烯反应， 公开了将由惰性气体例如氮气和/或蒸汽引入蒸馏系统中的蒸馏反应混合物得到的反应混合物中的异丙苯酚。 所得到的对枯基苯酚与通过常规方法得到的对比异丙苯酚相比具有高纯度和改进的颜色。