| 固体杂多酸盐的催化性能Ⅲ．钼磷、钼硅杂多酸碱金属盐的合成、表征和催化酯化反应 |
| STUDY ON THE CATALYTIC BEHAVI}URSOF SALTSOF HETEROPOLYACDS III SYNTHESIS, CHARACTERIZATDN AND CATALYTIC ACTIVITY OF Cs-SALTSOF PMo12 AND SIMo12-HETERO POLY ACDS |
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| 摘要: 合成了H3PMo12、H4SiMo12杂多酸的一系列铯盐：CsxH3-xPMo12O40·mH2O(x=0～3,m=4～7),CsxH4-xSiMo12O40·mH2O(x=0～4,m=4～7).测定了它们的酸强度、pH滴定曲线、NH3-TPD、IR光谱和比表面积。以乙酸和正丁醇的酯化为探针反应,考察了催化剂的酸催化活性。实验结果表明,杂多酸铯盐对乙酸和正丁醇的催化酯化活性只与总酸量有关,与表面积无关,属假液相反应。 |
| 关键词: 固体杂多酸盐 酸性质 酯化反应 |
| 基金项目: |
| Abstract: A series of Cs+ salts of heteropo lyacids (HPMo12, HSiMo12) w ere synthesized Their acidity was studied and their specific surface areas were deteim fined by BET-method The acid catalytic activity of various saltswas also investigated using the esterification of HAc and n-butyl alcohol as a test reaction. The results showed that the acid contents are noton the surface but in the bulk responsible for the catalytic activity Itmeans that the reaction is carried out in the pseudo-liquid phase |
| Keywords: solid salts of heteropolyacid acidity esterification |
| 投稿时间：1995-10-30 |
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| 谢文华,叶兴凯,杨向光,吴越.固体杂多酸盐的催化性能Ⅲ．钼磷、钼硅杂多酸碱金属盐的合成、表征和催化酯化反应[J].无机化学学报,1996,12(3):299-302. |
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