NHPI/SMA-Co多活性位点催化氧气氧化环己烷的工艺研究

Research on cyclohexane oxidation process catalyzed by NHPI/ SMA-Co multiple active site

摘要:

研究了NHPI/SMA-Co多活性位点催化氧气氧化环己烷的反应。得出该反应的最佳反应条件为：5mL环己烷，10mL乙腈，NHPI/SMA-Co摩尔配比为10:3，0.04g NHPI/SMA-Co复合催化剂用量，反应温度120℃，初始氧压1.0MPa。在此条件下反应6h，环己烷转化率为19.84%，环己醇选择性22.23%，环己酮选择性38.65%，KA油选择性达60.88%。经过对催化剂进行多次重复使用实验，表明催化剂的活性在反应过程中无明显降低，可以循环使用。

Abstract:

The reaction of oxidation of cyclohexane catalyzed by NHPI/SMA-Co multiple active site was studied in this paper. The optimum reaction conditions were as follows: 5mL of cyclohexane, 10mL of acetonitrile, the molar ratio of NHPI/SMA-Co is 10:3, HHPI/SMA-Co composite catalyst dosage is 0.04g, reaction temperature is 120℃, reaction pressure is 1.0MPa. React time is 6h, under these conditions, the conversion of cyclohexane was 19.84%, the selectivity of cyclohexanol was 22.23%, the selectivity of cyclohexanone was 38.65%, and the selectivity of KA was 60.88%. Repeated use experiments showed that the catalyst could be recycled.