The synthesis of isoamyl butyrate with isoamyl alcohol and butyric acid as reactants and rare-earth solid superacid SO42-/TiO2/La3+ as catalyst had been studied. The influent actors of reaction were investigated. The ...The synthesis of isoamyl butyrate with isoamyl alcohol and butyric acid as reactants and rare-earth solid superacid SO42-/TiO2/La3+ as catalyst had been studied. The influent actors of reaction were investigated. The results showed that the appropriate conditions should be: Weight of catalyst was 0. 5g (weight of butyric acid if 0. 2mol); molar ratio of isoamyl alcohol to butyric acid was 1. 8: 1; reaction time was 2. 0 h; the taking water reagent (Toluene) was 15mL. The yield of isoamyl butyrate was about 99. 0%.展开更多
Mixed oxide catalyst Cs 0 1 Fe 2Co 6BiMnMo 12 O x was prepared by the interprecipitation method,then the catalyst was calcined at different temperature.Selective oxidation of isobutene was carried out in a fixed bed r...Mixed oxide catalyst Cs 0 1 Fe 2Co 6BiMnMo 12 O x was prepared by the interprecipitation method,then the catalyst was calcined at different temperature.Selective oxidation of isobutene was carried out in a fixed bed reactor.The results showed that the catalyst has high catalytic activity.Under the optimum reaction conditions (n( C = 4)∶n(O 2)=1∶2 1∶4,space velocity=180h 1 ,T=360℃),the yield of methacrolein and methacrylic reached 80%,8%,respectively.The total yields of liquid products(methacrolein,methacrylic acid and acetic acid)reached about 90%.展开更多
文摘The synthesis of isoamyl butyrate with isoamyl alcohol and butyric acid as reactants and rare-earth solid superacid SO42-/TiO2/La3+ as catalyst had been studied. The influent actors of reaction were investigated. The results showed that the appropriate conditions should be: Weight of catalyst was 0. 5g (weight of butyric acid if 0. 2mol); molar ratio of isoamyl alcohol to butyric acid was 1. 8: 1; reaction time was 2. 0 h; the taking water reagent (Toluene) was 15mL. The yield of isoamyl butyrate was about 99. 0%.
文摘Mixed oxide catalyst Cs 0 1 Fe 2Co 6BiMnMo 12 O x was prepared by the interprecipitation method,then the catalyst was calcined at different temperature.Selective oxidation of isobutene was carried out in a fixed bed reactor.The results showed that the catalyst has high catalytic activity.Under the optimum reaction conditions (n( C = 4)∶n(O 2)=1∶2 1∶4,space velocity=180h 1 ,T=360℃),the yield of methacrolein and methacrylic reached 80%,8%,respectively.The total yields of liquid products(methacrolein,methacrylic acid and acetic acid)reached about 90%.
