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辽宁石油化工大学石油化工学院实验以介孔分子筛SBA-15为载体,浸渍KNO3后经过焙烧,制得K2O/SBA-15固体碱催化剂。通过XRD,N2等温吸附脱附和IR等测试手段对样品进行分析。本实验对K2O/SBA-15催化碳酸二甲酯(DMC)与正丁醇(n-BuOH)酯交换合成碳酸二正丁酯(DBC)反应进行了研究。实验结果表明:当K2O负载量为2%,反应时间2h,反应温度180℃,n(正丁醇)/n(DMC)为3.0,m(催化剂)/m(原
In this paper, mesoporous molecular sieve SBA-15 was used as carrier, and KNO3 was impregnated with KNO3 and calcined to obtain K2O / SBA-15 solid base catalyst in the experiment of Liaoning Institute of Petrochemical Technology. The samples were analyzed by XRD, N2 isothermal adsorption and desorption and IR. In this experiment, the reaction of K2O / SBA-15 catalyzed transesterification of dimethyl carbonate (DMC) with n-butanol (n-BuOH) to di-n-butyl carbonate (DBC) was studied. The experimental results show that when the loading of K2O is 2%, the reaction time is 2h, the reaction temperature is 180 ℃, the molar ratio of n (n-butanol) / n (DMC)