SnSO4 is an important promoter of catalyst for preparing naphthalene quinone with oxidation of naphthalene by air.Its thermal decomposition kinetics in N2was studied with NETZSCH-STA409PC thermal analyzer.SnSO4 therma...SnSO4 is an important promoter of catalyst for preparing naphthalene quinone with oxidation of naphthalene by air.Its thermal decomposition kinetics in N2was studied with NETZSCH-STA409PC thermal analyzer.SnSO4 thermal decomposition was an endothermic reaction and mainly occurred at 450-550℃.The total mass loss was 29.36%,so the reaction products were SnO2 and SO2.Kinetic function was obtained and kinetic parameters were calculated with linear regression provided by NETZSCH Instruments Co.Ltd.The correlation coefficient was 0.9997.The results showed that SnSO4 decomposition was a self-catalysis reaction and the catalyst was its reaction product.The kinetic function predicted that SnSO4 decomposition was 20% at 450℃ for 120 min and 100% at 480℃ for 106 min,and the process of catalyst preparation can be optimized.展开更多
采用氯化锌法,以花生壳为原料制备高性能的活性炭,并对其实验影响条件进行分析研究。通过正交实验得出最优制备条件:花生壳与氯化锌溶液料液质量比为1∶2.5,氯化锌溶液质量分数60%,活化温度600℃,活化时间90 m in。并对此条件下制备的...采用氯化锌法,以花生壳为原料制备高性能的活性炭,并对其实验影响条件进行分析研究。通过正交实验得出最优制备条件:花生壳与氯化锌溶液料液质量比为1∶2.5,氯化锌溶液质量分数60%,活化温度600℃,活化时间90 m in。并对此条件下制备的活性炭的性能进行了测定,其表观密度0.4146 g/mL,水分含量9.3067%,铁含量0.002%,亚甲基蓝吸附值12.5 mL/(0.1 g),碘的吸附值1 269.08 mg/g。展开更多
文摘以磷钼钒杂多酸H4PMo11V1O40为催化剂、乙酸为溶剂,用双氧水氧化2-甲基萘制备2-甲基萘醌.实验表明：H4PMo11V1O40具有一定的催化活性.通过正交试验和单因素试验考察了催化剂用量、乙酸用量、双氧水用量、反应时间、反应温度等对收率的影响,获得较佳的合成条件：杂多酸∶2-MN（质量比）=7%,乙酸∶2-MN（质量比）=10.5∶1,双氧水∶2-甲基萘（摩尔比）=4.2∶1,较适宜的温度为40~50℃,反应时间为30 min.
文摘SnSO4 is an important promoter of catalyst for preparing naphthalene quinone with oxidation of naphthalene by air.Its thermal decomposition kinetics in N2was studied with NETZSCH-STA409PC thermal analyzer.SnSO4 thermal decomposition was an endothermic reaction and mainly occurred at 450-550℃.The total mass loss was 29.36%,so the reaction products were SnO2 and SO2.Kinetic function was obtained and kinetic parameters were calculated with linear regression provided by NETZSCH Instruments Co.Ltd.The correlation coefficient was 0.9997.The results showed that SnSO4 decomposition was a self-catalysis reaction and the catalyst was its reaction product.The kinetic function predicted that SnSO4 decomposition was 20% at 450℃ for 120 min and 100% at 480℃ for 106 min,and the process of catalyst preparation can be optimized.
