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制备纳米SO2-4/SnO2 La2O3 SiO2固体超强酸催化剂,讨论了在纳米载体SiO2的存在下,Sn、Si摩尔比、焙烧温度对乙酸转化率的影响,并与SO2-4/SnO2 SiO2催化剂进行了对比,讨论了金属La3+对固体超强酸的影响。实验表明,SO2-4/SnO2 La2O3 SiO2催化剂在焙烧温度为450℃,n(Sn)∶n(Si)=0.5时,乙酸的转化率达到98.1%。
Preparation of SO2-4 / SnO2 La2O3 SiO2 solid superacid catalyst, the effect of the molar ratio of Sn and Si, the calcination temperature on the conversion of acetic acid in the presence of nano-SiO2 carrier was discussed, and with the SO2-4 / SnO2 SiO2 catalyst In contrast, the influence of metal La3 + on solid superacid is discussed. The experimental results show that the conversion rate of acetic acid reaches 98.1% for the SO2-4 / SnO2 La2O3 SiO2 catalyst at the calcination temperature of 450 ℃ and n (Sn): n (Si) = 0.5.