| H_3PW_6Mo_6O_(40)/TiO_2-WO_3催化合成苯甲醛乙二醇缩醛 |
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| 引用本文： | 彭放,王伊婷,王潘,余子丹,杨水金.H_3PW_6Mo_6O_(40)/TiO_2-WO_3催化合成苯甲醛乙二醇缩醛[J].湖北师范学院学报(自然科学版),2014(1):63-67. |
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| 作者姓名： | 彭放 王伊婷 王潘 余子丹 杨水金 |
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| 作者单位： | 湖北师范学院化学化工学院,湖北黄石435002 |
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| 基金项目： | 湖北高校2013年省大学生创新创业训练计划项目（201313256004） |
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| 摘 要： | 采取浸渍法制备环境友好催化剂H3PW6Mo6O40/TiO2-WO3,并对催化剂进行IR和XRD表征。以H3PW6Mo6O40/TiO2-WO3为催化剂,由苯甲醛和乙二醇反应合成了苯甲醛乙二醇缩醛,探讨该催化剂对缩醛反应的催化活性,较系统地考察了醛醇物质的量比、催化剂用量、带水剂用量以及反应时间诸因素对产品收率的影响。实验表明,H3PW6Mo6O40/TiO2-WO3是合成苯甲醛乙二醇缩醛的良好催化剂,确定的适宜工艺条件为:n(苯甲醛)∶n(乙二醇)=1∶1.6,催化剂用量为反应物料总质量的0.8%,带水剂环己烷的用量为6mL,反应时间75min.在此反应条件下,苯甲醛乙二醇缩醛的收率可达79.4%.
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| 关 键 词： | 苯甲醛乙二醇缩醛 HPWMoO/TiO-WO 催化 缩醛反应 |
Synthesis of benzaldehyde glycol acetal using H3PW6 Mo6O40/TiO2-WO3 as catalyst |
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| PENG Fang,WANG Yi-ting,WANG Pan,YU Zi-dan,YANG Shui-jin.Synthesis of benzaldehyde glycol acetal using H3PW6 Mo6O40/TiO2-WO3 as catalyst[J].Journal of Hubei Normal University(Natural Science),2014(1):63-67. |
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| Authors: | PENG Fang WANG Yi-ting WANG Pan YU Zi-dan YANG Shui-jin |
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| Institution: | (College of Chemistry and Chemical Engineering, Hubei Normal University, Huangshi 435002, China) |
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| Abstract: | A new environmental friendly catalyst , H3PW6Mo6O40/TiO2-WO3 was prepared with the impregnation method , and characterized by FT -IR and XRD.Benzaldehyde glycol acetal was synthesized from benzaldehyde and glycol using H3PW6Mo6O40/TiO2-WO3 as the catalyst.The influence factors on the yield of benzaldehyde glycol acetal were also dis -cussed.The optimum conditions were indentified：molar ratio of benzaldehyde and glycol is 1∶1.6, mass fraction of catalyst to reactants is 0.8%, cyclohexane dosage is 6 mL and reaction time is 75 min.The yield of benzaldehyde glycol acetal can reach 79.4%under the optimum conditions. |
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| Keywords: | benzaldehyde glycol acetal H3PW6Mo6O40/TiO2-WO3 catalysis acetalization |
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