【摘要】 目的优选桂油碱性水解制天然苯甲醛的最佳工艺条件。方法采用正交实验法,以苯甲醛的得率为指标,考察反应温度、反应时间、催化剂用量和反应加水量对苯甲醛得率的影响,优选出最佳的工艺。结果最佳制备工艺为催化剂用量为桂油用量的5%,反应时间为3 h,加水量为200 ml,反应温度为100℃。结论优化制备工艺简单、稳定、可行。更多还原

【Abstract】 Objective To explore an optimum preparation technology of benzaldehyde by basic hydrolysis of cinnamon.Methods Using the yield of benzaldehyde as the index,the effect of reaction temperature,reaction time,catalyst amount and water amount on the preparing process were studied by orthogonal design method.Results The optimum preparation procedure was as follows: reacting for 3 hours at 100℃ with 200ml water and 1:20 ratio of sodium hydroxide to cinnamon.Conclusion The optimum preparing procedure is simple and stable,and it was suitable for preparing benzaldehyde by basic hydrolysis of cinnamon.更多还原