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以Keggin型磷钨酸为催化剂、甲苯为带水剂,采用均匀设计,确定合成己二酸二丁酯的最佳工艺条件为:n(正丁醇)∶n(己二酸)=3.3,m(磷钨酸)∶m(己二酸)=1.5∶100,w(甲苯)=24%,反应时间2 h.在此条件下,酯化率可达99.45%. 相似文献
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Using a simple and reliable apparatus, the solubilities of adipic acid in water, ethanol, chloroform, n-butanol and acetone are determined by the analytic method. The results are correlated with λh equation, Apelblat equation, and UNIFAC equation. The solubilities calculated by these models are in good agreement with experimental data, so that the models can meet the requirements of engineering design. 相似文献