CAJ | 학술논문

绿色增塑剂是当前学术界研究的一个热点，而柠檬酸三丁酯作为一种新型绿色的塑料增塑剂受到了人们的青睐，为此，本文研究了六水合溴化镁催化一水合柠檬酸与正丁醇酯化合成绿色增塑剂柠檬酸三丁酯的反应条件，通过实验考察了催化剂用量、反应温度、酸醇物质的量比、反应时间等因素对反应的影响，确定出最佳反应条件为：催化剂用量10 mol%，酸醇物质的量比1∶5.5，反应温度140℃，反应时间为4 h，酯化率可达到98%以上。上述方法具有反应时间短，副反应少，酯化率高，价廉易得等优点。
록색증소제시당전학술계연구적일개열점，이저몽산삼정지작위일충신형록색적소료증소제수도료인문적청래，위차，본문연구료륙수합추화미최화일수합저몽산여정정순지화합성록색증소제저몽산삼정지적반응조건，통과실험고찰료최화제용량、반응온도、산순물질적량비、반응시간등인소대반응적영향，학정출최가반응조건위：최화제용량10 mol%，산순물질적량비1∶5.5，반응온도140℃，반응시간위4 h，지화솔가체도98%이상。상술방법구유반응시간단，부반응소，지화솔고，개렴역득등우점。
Green plasticizer is a hot topic in currently academic research and tributyl citrate (abbreviated as TBC) as a new“green”plastic plasticizer, gets the favour of people of all ages.The esterification reaction of citric acid and n-butyl alcohol catalyzed by MgBr2·6H2O was studied in this article.Different factors such as catalyst loading,temperature,the ratio of citric acid and n-butyl alcohol,reaction time were investigated through controlled experiments and the optimal reaction conditions were obtained.When the reaction was conducted for 4 h at 140 ℃ in the presence of 10 mol% MgBr2·6H2O and a 5.5-fold excess of n-butyl alcohol, the desired tributyl citrate could be obtained above 98% yield.The method has the advantages of short reaction time,fewer side effects,high efficiency of esterification,cheapness,etc.