| 二氧化硅负载硅钨酸催化合成环己酮乙二醇缩酮 |
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| 引用本文： | 程银芳,杨志新,唐盈,黄永葵,杨水金.二氧化硅负载硅钨酸催化合成环己酮乙二醇缩酮[J].应用化工,2011,40(7):1153-1155. |
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| 作者姓名： | 程银芳 杨志新 唐盈 黄永葵 杨水金 |
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| 作者单位： | 湖北师范学院,化学与环境工程学院,湖北,黄石,435002 |
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| 基金项目： | 湖北省自然科学基金资助项目 |
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| 摘 要： | 采用溶胶-凝胶法制备二氧化硅负载硅钨酸催化剂,催化环己酮和乙二醇合成环己酮乙二醇缩酮,研究了酮醇物质的量比、催化剂用量、带水剂环己烷、反应时间对收率的影响。实验表明,二氧化硅负载硅钨酸催化剂是合成环己酮乙二醇缩酮的良好催化剂,在n(环己酮)∶n(乙二醇)=1∶1.5,带水剂环己烷的用量为10 mL,反应时间60 min,催化剂用量为原料总质量的0.8%的条件下,产品的收率可达77.5%。
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| 关 键 词： | 环己酮乙二醇缩酮 硅钨酸 二氧化硅 催化 |
Catalytic synthesis of cyclohexanone ethylene ketal with H4 SiW12O40/SG |
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| CHENG Yin-fang,YANG Zhi-xin,TANG Ying,HUANG Yong-kui,YANG Shui-jin.Catalytic synthesis of cyclohexanone ethylene ketal with H4 SiW12O40/SG[J].Applied chemical industry,2011,40(7):1153-1155. |
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| Authors: | CHENG Yin-fang YANG Zhi-xin TANG Ying HUANG Yong-kui YANG Shui-jin |
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| Affiliation: | CHENG Yin-fang,YANG Zhi-xin,TANG Ying,HUANG Yong-kui,YANG Shui-jin (College of Chemistry and Environmental Engineering,Hubei Normal University,Huangshi 435002,China) |
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| Abstract: | H4SiW12O40/SiO2 was prepared by the method of impregnation.H4SiW12O40/ SiO2 were used as the catalyst in the synthesis of cyclohexanone ethylene ketal.The effects of n(cyclohex-anone)∶n(glycol),catalyst dosage,cycloheaxne and reaction time on the yield were investigated.The optimal conditions were as follows:n(cyclohexanone) ∶n(glycol)=1∶1.5,mass fraction of catalyst to reactants 0.8%,reaction time 60 min and dried cyclohexane 10 mL.Under these conditions,the yield of cyclohexanone ethylene ketal was 77.5%. |
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| Keywords: | cyclohexanone ethylene ketal H4SiW12O40 SiO2 catalysis |
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