Process for the production of 3-cyclohexene-1-carboxaldehyde
    2.
    发明授权
    Process for the production of 3-cyclohexene-1-carboxaldehyde 失效
    3-环己烯-1-甲醛的制备方法

    公开(公告)号:US4642387A

    公开(公告)日:1987-02-10

    申请号:US813904

    申请日:1985-12-27

    CPC分类号: C07C45/69

    摘要: A continuous process for the production of 3-cyclohexene-1-carboxaldehyde by reaction of acrolein with butadiene at an elevated temperature and increased pressure is described in which good yields are obtained by establishing the weight ratio of the starting substances fed per time unit into a circulation reactor in relation to the reaction mixture circulated per time unit in the range of 1:5 to 1:60 and by carrying out a secondary reaction in successive reactors.

    摘要翻译: 描述了通过在升高的温度和增加的压力下通过丙烯醛与丁二烯的反应制备3-环己烯-1-甲醛的连续方法,其中通过将每单位时间单元进料的起始物质的重量比确定为 循环反应器相对于每单位循环的反应混合物在1:5至1:60的范围内,并通过在连续的反应器中进行二次反应。

    Method of preparing peracetic acid
    5.
    发明授权
    Method of preparing peracetic acid 失效
    制备过乙酸的方法

    公开(公告)号:US4904821A

    公开(公告)日:1990-02-27

    申请号:US206488

    申请日:1988-06-14

    摘要: In order to safely prepare peracetic acid in an organic solvent, the bottom is maintained in a certain stationary state during the preparation of aqueous peracetic acid, whereupon the vapor current of peracetic acid, acetic acid and water is absorbed with an organic phosphate with 3-30 carbon atoms. The solution obtained in this manner can be transferred by means of desorption with a low-boiling compound, e.g. an alkyl ester, into this lower-boiling solvent.

    摘要翻译: 为了在有机溶剂中安全地制备过乙酸,在制备过乙酸水溶液期间将底部保持在一定的静止状态,于是过氧乙酸,乙酸和水的蒸气流被有机磷酸盐吸收, 30个碳原子。 以这种方式获得的溶液可以通过用低沸点化合物,例如, 烷基酯,进入该低沸点溶剂。