The sodium bisulfate and concentrated sulfuric acid can be used as a catalyst for esterification.Using stearic acid and ethanol as raw material,sodium bisulfate and sulfuric acid catalyst for the synthesis of stearic acid ester compound were studied.The optimum reaction conditions are as follows:acid molar ratio n (stearic acid)∶n (ethanol) was 1∶8,the amount of catalyst 1.4 g,Complex catalyst in concentrated sulfuric acid and sodium hydrogen sulfate ratio of 1.8∶1,and the reaction time was one hundred and twenty minutes.Esterification rate can be up to 82％.%硫酸氢钠和浓硫酸能够作为酯化反应的催化剂,本文研究了以硬脂酸和无水乙醇为原料,硫酸氢钠和浓硫酸为复合催化剂合成硬脂酸乙酯.最佳反应条件为:醇酸摩尔比n(硬脂酸)∶n(无水乙醇)为1∶8,催化剂用量为1.4g,复合催化剂中硫酸氢钠与浓硫酸之比为1.8∶1,反应时间120 min,酯化率最高可达82％.
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