| H3PW12O40/TiO2催化合成醋酸异戊酯 |
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| 引用本文： | 张世金,程磊,许招会,廖维林.H3PW12O40/TiO2催化合成醋酸异戊酯[J].江西化工,2006(3):54-56. |
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| 作者姓名： | 张世金 程磊 许招会 廖维林 |
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| 作者单位： | 江西师范大学化学化工学院,江西,南昌,330027 |
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| 基金项目： | 江西师范大学校科研和教改项目 |
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| 摘 要： | 采用溶胶一液相法制备了H3PW120O40／TiO2复合催化剂，用FT—IR分析方法对催化剂进行了结构表征。以醋酸和异戊醇为原料合成了醋酸异戊酯，考察了反应物配比、催化剂用量、反应时问及催化剂的重复使用性能对产品收率的影响。实验结果表明：合成醋酸异戊酯的较优反应条件为：异戊醇0．1mol，n（醋酸）／n（异戊醇）=1．4／1．0（mol／m01），催化剂的用量为1．25g，环己烷为带水剂，反应时问3．Oh。上述条件下，醋酸异戊酯的收率可达87．0％以上。
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| 关 键 词： | 磷钨酸 钛酸四丁酯 醋酸异戊酯 合成 |
Synthesis of Iso - amyl Acetate Catalyzed by H3PW12O40/TiO2 |
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| Zhang Shi-jin,Chen Lei,Xu Zhao-hui,Liao Wei-Lin.Synthesis of Iso - amyl Acetate Catalyzed by H3PW12O40/TiO2[J].Jiangxi Chemical Industry,2006(3):54-56. |
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| Authors: | Zhang Shi-jin Chen Lei Xu Zhao-hui Liao Wei-Lin |
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| Abstract: | A complex catalyst,H_3PW_(12)O_(40)/TiO_2 was prepared by sol-gol method and identified by FT-IR.Iso-amyl acetate was synthesized from acetic acid and iso-amy1 alcohol using it as the catalyst.The factors influencing the synthesis were discussed and the better conditions are as follows:iso-amy1 alcohol0.1mol,n(iso-amyl alcohol)/n(acetic acid)=1.0/1.4(mol/mol),the amount of catalyst is 1.25g,the amount of cyclohexane as water-carrying agent is 12mL,the reaction time is 3.0h.Experimental results showed that under the above reaction conditions the yield of iso-amyl acetate can reach over 87.0%. |
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| Keywords: | H_3PW_(12)0_(40) Ti(OC_4H_9)_4 iso-amyl acetate synthesis |
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