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报道了以水溶性的KAl（SO4）2·12H2O为催化剂，催化合成无毒增塑剂柠檬酸三丁酯，并考察了影响酯化反应的因素，确定了最佳反应条件。
Reported the use of water-soluble KAl (SO4) 2 · 12H2O catalyst for the synthesis of nontoxic plasticizer tributyl citrate, and investigated the factors that affect the esterification reaction to determine the optimum reaction conditions.