论文部分内容阅读
SO_4~2/Fe_2O_3超强酸是由3种来源的Fe_2O_3制备而成。研究了H_2SO_4浓度、焙烧温度、以及其它制备条件对催化活性的影响。实验结果表明:3种SO_4~(2-)/Fe_2O_3对乙酸/丁醇的酯化反应均有活性。最佳结果是在2h之内,转化率>90％。经XRD分析,在SO_4~2/Fe_2O_3中无硫酸盐存在。
SO_4 ~ 2 / Fe_2O_3 superacid is prepared from three sources of Fe_2O_3. The effects of H 2 SO 4 concentration, calcination temperature and other preparation conditions on the catalytic activity were studied. The experimental results show that all three kinds of SO 4 2- / Fe 2 O 3 are active for esterification of acetic acid / butanol. The best result is within 2h, the conversion rate> 90%. By XRD analysis, there is no sulfate in SO 4 2- / Fe 2 O 3.