Nitration process
    150.
    发明授权
    Nitration process 失效
    硝化过程

    公开(公告)号:US5313009A

    公开(公告)日:1994-05-17

    申请号:US135569

    申请日:1993-10-14

    Abstract: A continuous process to nitrate a nitratable aromatic compound in a nitronium ion solution in a nitrator. The process comprises feeding into the nitrator nitronium ion solution of a composition within an area defined by connecting three points in a ternary phase diagram of nitric acid, sulfuric acid and water. The three points correspond to first about 82% of sulfuric acid and 18% nitric acid, secondly about 55% sulfuric acid and about 45% water and, thirdly, 100% sulfuric acid, with the nitric acid preferably being below about 3%. The nitratable aromatic compound is introduced in a manner such that a fine emulsion of hydrocarbon in the nitronium ion solution is formed with the hydrocarbon evenly distributed in the acid phase. The acid and the nitratable aromatic compound are brought into intimate contact in a plug-flow nitrator that contains mixing elements.

    Abstract translation: 在氮化器中硝酸根离子溶液中硝化可硝化芳族化合物的连续方法。 该方法包括在硝酸,硫酸和水的三元相图中连接三个点所限定的区域内的组合物的硝化器硝鎓离子溶液中进料。 三点对应于首先约82%的硫酸和18%的硝酸,其次约55%的硫酸和约45%的水,以及第三种是100%的硫酸,硝酸优选低于3%左右。 引入可硝化芳族化合物,使得在硝酸根离子溶液中形成烃的精细乳液,其中均匀分布在酸相中的烃形成。 酸和可硝化芳香族化合物在包含混合元件的活塞式硝化器中紧密接触。

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