木质素催化氧化降解制备芳香醛的研究

摘要

This paper introduced application/supply/demand and price of methyl isobutyl ketone(MI-BK) at home,and made forecast on its market prospect. It also gave some recommendations for MIBK future development. Development of MIBK will be rapid in the days to come. The capacity of MIBK in 2015 is predicted to be 140 kt.%研究了碱性条件下木质素降解制备芳香醛的催化氧化反应,考察了催化剂种类和用量、NaOH溶液浓度、反应温度、反应时间和反应压力对氧化降解反应的影响,确定了最佳反应条件,即:木质素1.6g、催化剂CuSO4 0.05g、2.0 mol/L NaOH 30.0 mL、反应压力1.5MPa、反应温度175℃和反应时间90 min.在上述反应条件下,所得反应产物芳香醛(香兰素、紫丁香醛、对羟基苯甲醛)总收率为24.4％.