| 氧化钾/SBA-15催化合成碳酸二正丁酯 |
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| 引用本文： | 崔晓燕,沈健.氧化钾/SBA-15催化合成碳酸二正丁酯[J].精细石油化工,2011,28(3):13-17. |
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| 作者姓名： | 崔晓燕 沈健 |
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| 作者单位： | 辽宁石油化工大学石油化工学院,辽宁,抚顺,113001 |
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| 摘 要： | 以介孔分子筛SBA-15为载体,浸渍KNO3后经过焙烧,制得K2O/SBA-15固体碱催化剂.通过XRD,N2等温吸附脱附和IR等测试手段对试样进行了分析.研究了K2O/SBA-15催化碳酸二甲酯(DMC)与正丁醇(n-BuOH)酯交换合成碳酸二正丁酯(DBC)的反应.结果表明:当K2O负载量为2%,反应时间2 h,反...
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| 关 键 词： | 介孔分子筛 氧化钾/SBA-15固体碱催化剂 酯交换反应 碳酸二正丁酯 |
SYNTHESIS OF DIBUTYL CARBONATE BY TRANSESTERIFICATION OVER MESOPOROUS MOLECULAR SIEVE K2O/SBA-15 |
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| Cui Xiaoyan,Shen Jian.SYNTHESIS OF DIBUTYL CARBONATE BY TRANSESTERIFICATION OVER MESOPOROUS MOLECULAR SIEVE K2O/SBA-15[J].Speciality Petrochemicals,2011,28(3):13-17. |
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| Authors: | Cui Xiaoyan Shen Jian |
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| Affiliation: | Cui Xiaoyan and Shen Jian (School Petrochemical Engineering,Liaoning University of Petroleum & Chemical Technology,Fushun 113001,Liaoning,China) |
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| Abstract: | K_2O/SBA-15 as the solid base catalyst was synthesized bu loading potassium on mesoporous sieve SBA-15.The sample has been characterized by XRD,N_2 adsorption desorption and IR.The study on the synthesis of dibutyl carbonate from dimethyl carbonate and butanol has been done.The experimental results showed that when the loaded mount of K_2O was 2%,reaction time was 2 h,reaction temperature was 180℃,n(n-butanol):n(dimethyl carbonate) was 3 and the ratio of catalyst to raw material was 8%,the highest conversion of dimethyl carbonate was 89.6%,the yield of DBC was 58%,the selectivity to DBC was 64.7%.The results also showed that the K_2O/SBA-15 could be reused with good catalytic effect. |
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| Keywords: | mesoporous sieve potassium oxide/SBA-15 solid base catalyst transesterification dibutyl carbonate |
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