间硝基苯磺酸钠固定床催化加氢工艺的研究  

A Study on Catalytic Hydrogenation of Sodium m-Nitrobenzenesulfonate Using a Fixed-bed Reactor

作　　者：龚亚军[1] 陈二中 刘冰[1] 周晨[1] 尹荃[1] 闫海生[1] 

机构地区：[1]沈阳化工研究院有限公司,沈阳110021

出　　处：《染料与染色》2016年第6期25-27,共3页Dyestuffs and Coloration

摘　　要：采用固定床反应器,对间硝基苯磺酸钠连续催化加氢制备间氨基苯磺酸钠工艺进行了探索。得到最佳工艺条件为:反应温度180℃,压力2.0 MPa,原料质量空速1.0 h^(-1)。在此条件下,催化剂连续运转200 h活性无明显下降,间氨基苯磺酸钠摩尔收率稳定在97.5%以上。Catalytic hydrogenation of sodium m-nitrobenzene sulfonate to synthesis sodium m-aminobenzene sulfonate was studied by a fixed-bed reactor. The experimental parameters such as temperature,hydrogen pressure and the mass space velocity were investigated.The optimum conditions were reaction temperature 200 ℃,hydrogen pressure 2. 0 MPa,and mass space velocity of sodium m-nitrobenzene sulfonate 1. 0 h-1,the catalyst had no obvious deactivation after continuous operation of 200 h and the average yield of sodium maminobenzene sulfonate was above 97. 5%.

关 键 词：固定床 连续加氢 间硝基苯磺酸钠 间氨基苯磺酸钠 质量空速 

分 类 号：TQ612[化学工程—精细化工]