摘要
以沉积-沉淀法制备了Au-Co/SBA-15催化剂,在没有任何有机溶剂或助剂的条件下,研究了以空气为氧化剂的环己烷选择性氧化。当Au-Co/SBA-15催化剂中金的质量百分含量为1.0%,催化反应在423 K 3.0 MPa下进行120 m in时,催化效果最好,此时环己烷的转化率为22.7%,环己酮和环己醇的总选择性为95.2%,酮醇比为2.9,且催化剂重复使用五次后活性基本不变。
Without any organic solvent or activator, the selective oxidation of cyclohexane with air to afford cyclohexanol and cyclohexanone was investigated over Au-Co/SBA-15 catalysts prepared by depositionprecipitation method. The best result was obtained over Au-Co/SBA-15 （ Au 1.0% ） catalyst with conversion of 22.7% and selectivity of 95.2%, and the ratio of cyclohexanone to cyclohexanol was 2.9 ,when the reaction was carried out at 423 K for 120 rain under 3.0 MPa, and catalytic activity did not change after five runs.
出处
《应用化工》
CAS
CSCD
2006年第3期161-163,172,共4页
Applied Chemical Industry
基金
国家自然科学基金项目(20476042
20546003)
关键词
环己烷
氧化
金
空气
cyclohexane
oxidation
Au
air
