H_3PW_(12)O_(40)/Y-β催化油酸甲酯的绿色合成

• 作 者: 程云 杨莹 罗根祥
• 机 构: 辽宁石油化工大学化学化工与环境学部,
• 出 处: 辽宁石油化工大学学报
• 发表日期: 2014年05期
• 关键词: H_3PW 复合分子筛 油酸 酯化率 催化剂 油酸甲酯 催化剂质量 磷钨酸 催化活性 介孔分子筛

采用Y-β复合分子筛负载H3PWl2O40为催化剂(H3PWl2O40/Y-β),对油酸与甲醇酯化反应合成油酸甲酯进行了研究,考察了催化剂质量、醇酸物质的量比、反应时间及催化剂重复使用次数等因素对酯化率的影响。实验结果表明,该催化剂具有催化性能高、易回收、可以重复使用等优势。最佳反应条件为:油酸的物质的量为0.1mol、醇酸物质的量比为1.8、催化剂质量为1.2g、反应时间为90min。最佳反应条件下的酯化率达到94.7%。

The esterification reaction of oleic acid and methanol was studied by using H3PWl2O40 as catalyst (H3PWl2O40 / Y-β) supported on Y-β composite molecular sieve. The effects of catalyst mass, alkyd ratio, reaction time, The number of catalyst reuse and other factors on the esterification rate. The experimental results show that the catalyst has the advantages of high catalytic performance, easy recovery, can be reused. The optimal reaction conditions are as follows: the amount of oleic acid is 0.1mol, the amount of alkyd is 1.8, the mass of catalyst is 1.2g and the reaction time is 90min. The optimal reaction conditions of the esterification rate of 94.7%.