首页> 外文期刊>中国化学工程学报(英文版) >固体超强酸催化剂SO42-/TiO2-MoO3的制备及其催化合成缩醛(酮)
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固体超强酸催化剂SO42-/TiO2-MoO3的制备及其催化合成缩醛(酮)

机译:固体超强酸催化剂SO42-/TiO2-MoO3的制备及其催化合成缩醛(酮)

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机译:SO24-/TiO2-MoO3, a novel solid superacid, has been prepared and its catalytic activity at different synthetic conditions was examined with esterification of n-butanoic acid and n-butyl alcohol as probing reaction.The optimum conditions were also found, that is, the mass ratio of MoO3 used in the compound is 25%, the catalytic synthesis of six similar important ketals and acetals as catalyst and revealed high catalytic activity. Under the condition that the molar ratio of aldehyde/ketone to glycol was 1:1.5, the mass ratio of the catalyst to the reactants was 0.5% and the reaction time 1.0 h, the yield of ketals and acetals reached up to 63.2%. The catalyst can be easily recovered and reused.

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