1. School of Chemical Engineering, Xiangtan University, Xiangtan 411105, China 2. National & Local United Engineering Research Center for Chemical Process Simulation and Intensification, Xiangtan University, Xiangtan 411105, China
Metal salts with highly electronegative cations have been used to effectively catalyze the liquid-phase nitration of benzene by NO2 to nitrobenzene under solvent-free conditions. Several salts including FeCl3, ZrCl4, AlCl3, CuCl2, NiCl2, ZnCl2, MnCl2, Fe(NO3)3·9H2O, Bi(NO3)3·5H2O, Zr(NO3)4·5H2O, Cu(NO3)2·6H2O, Ni(NO3)2·6H2O, Zn(NO3)2·6H2O, Fe2(SO4)3, and CuSO4 were examined and anhydrous FeCl3 exhibited the best catalytic performance under the optimal reaction conditions. The benzene conversion and selectivity to nitrobenzene were both over 99%. In addition, it was determined that the metal counterion and the presence of water hydrates in the salt affects the catalytic activity. This method is simple and efficient and may have potential industrial application prospects.
. [J]. Frontiers of Chemical Science and Engineering, 2017, 11(2): 205-210.
Shenghui Zhou, Kuiyi You, Zhengming Yi, Pingle Liu, Hean Luo. Metal salts with highly electronegative cations as efficient catalysts for the liquid-phase nitration of benzene by NO2 to nitrobenzene. Front. Chem. Sci. Eng., 2017, 11(2): 205-210.
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