Method of separating cyclohexyl nitrate and method for producing chlorocyclohexane
    273.
    发明专利
    Method of separating cyclohexyl nitrate and method for producing chlorocyclohexane 审中-公开
    分离环丙基亚硝酸酯的方法和生产氯化胆碱的方法

    公开(公告)号:JP2008297261A

    公开(公告)日:2008-12-11

    申请号:JP2007146213

    申请日:2007-05-31

    Abstract: PROBLEM TO BE SOLVED: To provide a method of stably separating cyclohexyl nitrate by preventing cyclohexyl nitrate from thermally decomposing in separating cyclohexyl nitrate from an organic substance containing cyclohexyl nitrate by steam distillation.
    SOLUTION: The method of separating cyclohexyl nitrate from an organic mixture containing cyclohexyl nitrate by steam distillation comprises carrying out the steam distillation in a manner that the liquid temperature of the bottom of a distillation column 1 is set at not higher than 182°C and the concentration of the cyclohexhyl nitrate in a bottom product to be drawn from the bottom of the column comes to not more than 45 mass% by the cyclohexyl nitrate concentration in an organic phase separated from an aqueous phase.
    COPYRIGHT: (C)2009,JPO&INPIT

    Abstract translation: 解决问题的方法:提供一种通过蒸汽蒸馏,通过防止环己基硝酸盐分离环己基硝酸盐从含有环己基硝酸盐的有机物中分解而使环己基硝酸盐稳定分离的方法。 解决方案:通过蒸汽蒸馏从含有硝酸环己烷的有机混合物中分离环己基硝酸盐的方法包括以蒸馏塔1的底部液体温度设定在不高于182°的方式进行蒸汽蒸馏 在从水相中分离出来的有机相中,从塔底抽取的底部产物中硝酸环己酯的浓度不超过45质量%。 版权所有(C)2009,JPO&INPIT

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