ZrOCl2?8H2O/USY催化月桂酸与月桂醇的酯化反应研究

Study on the catalytic esterification of lauric acid and lauryl alocohol by ZrOCl2?8H2O/USY

摘要:

采用浸渍法制备了负载型ZrOCl2•8H2O/USY催化剂，并用XRD、SEM等对其进行表征。以ZrOCl2•8H2O/USY为催化剂考察了其催化月桂酸与月桂醇酯化反应的催化性能。以月桂酸的转化率为考察指标，讨论了催化剂活性以及各种因素如催化剂用量、反应溶剂、反应时间对该酯化反应酯化转化率的影响。实验结果表明，月桂酸与月桂醇的摩尔比为1:1，30 %（质量分数）ZrOCl2•8H2O/USY为催化剂，反应溶剂为氯代苯，当催化剂用量为反应物总质量的5.0 %，溶剂回流条件下反应时间为16 h，月桂酸的转化率达到95.2 %。

Abstract:

The catalyst of ZrOCl2 8H2O supported on molecular sieves USY was prepared using impregnation method and characterized by XRD and SEM. The catalytic properties were examined by the catalytic esterificaton of lauric acid and lauryl alocohol. Used the conversion of lauric acid as an index, the effects of catalyst activity and others conditions such as reaction solvent, catalyst loadings, and reaction time on the conversion of lauric acid were investigated. The results showed that the conversion of lauric acid was up to 95.2 % in the esterification of lauric acid and lauryl alocohol under the optimum conditions of 5.0 % quantity of catalysts, eflux temperature of solvent and reaction time of 16 h by used the 30 % ZrOCl2•8H2O/USY as catalyst and chlorobenzene as solvent.