CAJ | 학술논문

以对甲苯磺酸为催化剂，柠檬酸、正丁醇为原料酯化合成柠檬酸三丁酯，探讨了催化剂用量、反应温度、柠檬酸与正丁醇物质的量比和反应时间等因素对反应的影响。确定最佳反应条件为：反应时间4．0h，反应温度140℃，正丁醇与柠檬酸物质的量比5：1，催化剂的用量为柠檬酸的2％。反应初产物经先中和碱洗后，再减压脱醇，产品外观色泽符合质量要求。此条件下，柠檬酸三丁酯酯化率为98．9％。
이대갑분광산위최화제，저몽산、정정순위원료지화합성저몽산삼정지，탐토료최화제용량、반응온도、저몽산여정정순물질적량비화반응시간등인소대반응적영향。학정최가반응조건위：반응시간4．0h，반응온도140℃，정정순여저몽산물질적량비5：1，최화제적용량위저몽산적2％。반응초산물경선중화감세후，재감압탈순，산품외관색택부합질량요구。차조건하，저몽산삼정지지화솔위98．9％。
Tributyl citrate (TBC) was synthesized with citric acid and butyl alcohol ~ raw materials and p - toluene sulfuric acid as esterification catalyst. The effects of the reactant ratio, catalyst quantity, re- action time and reaction temperature on the product yield were investigated. The proper reaction conditions were the molar ratio of citric acid to butyl alcohol was 1:5, the amount of catalyst was about 21% of the quali- ty of citric acid, and reaction time was 4.0 h. The yield of the ester could reach 98.9%. The initial reaction product was neutralizatized by sodiun carbonate and decompressed distillation, it could meet requirement with high quality. In this condition, the esterification rate was 98.9%.