石油化工2011，Vol.40Issue(6)：594-598,5.
(CTAB)9[Sb1.0W9O33]催化氧化环己醇制备环己酮
(CTAB)9 [ Sb1.0W9O33 ] Catalysts for Catalytic Oxidation of Cyclohexanol to Cyclohexanone
摘要
Abstract
K9 [ Sb1.0 W9 O33 ] was prepared by sol-gel method with citric acid as the complexing agent and then was modified with cetyltrimethylammonium bromide (CTAB) to obtain phase-transfer catalysts (CTAB)9 [ Sb1.0 W9O33]. Catalytic oxidation of cyclohexanol with hydrogen peroxide to cyclohexanone over the (CTAB)9[Sb1.0W9O33] was investigated. The effects of n(Sb): n(W) in the catalysts, n(H2O2) : n(cyclohexanol), n( (CTAB)9[Sb1.0W9O33]) : n(cyclohexanol + H2O2) ,reaction temperature and reaction time on the catalyst performance were studied. The results showed that under the optimal conditions of n(Sb):n(W) 1.0:9, n(H2O2):n( cyclohexanol) 1.5, n((CTAB)9[Sb10W9O33]) : n (cyclohexanol +H2O2) 0.001 2, reaction temperature 353 K and reaction time 2.0 h, conversion of cyclohexanol was 97.4% and selectivity to cyclohexanone reached 99.7%. The catalysts (CTAB)9[Sb1. 0W9O33] were characterized by means of XRD. [Sb1.0W9O33]9-still maintained its original structure after the oxidation, possessing a cooperative effect with CTAB+ during the oxidation, which effectively heightened the selectivity to cyclohexanone.关键词
环己醇/环己酮/十六烷基三甲基溴化铵/相转移催化剂/催化氧化Key words
cyclohexanol/cyclohexanone/cetyltrimethylammonium bromide/phase-transfer catalyst/catalytic oxidation分类
化学化工引用本文复制引用
贾太轩,张继昌,赵凌,黄建平,刘自力..(CTAB)9[Sb1.0W9O33]催化氧化环己醇制备环己酮[J].石油化工,2011,40(6):594-598,5.基金项目
国家自然科学基金项目(20776031). （20776031）
