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    Process for conditioning reducible cyclic organic compounds
    2.
    发明授权
    Process for conditioning reducible cyclic organic compounds 失效
    调节可还原性环状有机化合物的方法

    公开(公告)号：US3187050A

    公开(公告)日：1965-06-01

    申请号：US9386861

    申请日：1961-03-07

    Applicant: ALLIED CHEM

    Inventor： DUGGAN RAYMOND J ,  WINSTROM LEON O

    IPC: B01J31/02 ,  C07B61/00 ,  C07C37/74 ,  C07C201/16 ,  C07C209/36

    CPC classification number: C07C209/36 ,  C07B61/00 ,  C07C37/685 ,  C07C37/74 ,  C07C37/86 ,  C07C201/16 ,  C07C209/72 ,  C07C209/84 ,  C07C211/35 ,  C07C211/46 ,  C07C2601/14 ,  C07C39/16 ,  C07C205/06

    Abstract: A process for purifying cyclic organic compounds such as phenol, aniline and nitro benzene which are readily reducible by catalytic hydrogenation and stable under the conditions of the process, comprises mixing the organic compound with ethylenediamine-tetraacetic acid or an alkali metal or ammonium salt thereof preferably the trisodium salt as conditioning agent preferably in an amount of 0.015-0.1% (calculated as the trisodium salt of the ethylenediaminetetraacetic acid), by weight of the cyclic organic compound, heating the mixture at a temperature of at least 80 DEG C. and preferably at least 150 DEG C. for at least one hour and distilling off the compound from the mixture. Where phenol or aniline is being purified they are mixed with caustic alkali as well as the conditioning agent which is employed in an amount about equal to the weight of the conditioning agent. Examples are given of the purification of phenol, aniline and nitrobenzene.

    Abstract translation: 在该方法的条件下，通过催化氢化容易还原并稳定的环状有机化合物如苯酚，苯胺和硝基苯的方法包括将有机化合物与乙二胺四乙酸或其碱金属或铵盐混合， 作为调理剂的三钠盐的重量比优选为0.015-0.1％（按乙二胺四乙酸的三钠盐计算），循环有机化合物的重量，在至少80℃的温度下加热该混合物 至少150℃至少1小时，并从混合物中蒸馏出化合物。 当苯酚或苯胺被纯化时，它们与苛性碱混合，以及调理剂的用量大约等于调理剂的重量。 给出苯酚，苯胺和硝基苯的纯化实例。

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