两类不同的酸酐脱水缩合而成的多酸称为杂多酸(HPA)。近年来由于它作为实用的催化剂导致某些化学过程工业化而引起普遍的关注 HPA 作为健化剂有显著的特点:化学计量的 HPA 组成简单、结构确定,既兼有配位化合物和金属氧化物的结构特征又兼有酸性和氧化还原的性能。许多 HPA(盐)在水中和含氧有机溶剂中溶解度甚大,而且 Two kinds of different anhydride dehydration condensation of poly acid called heteropoly acid (HPA). In recent years due to its practical catalyst as a catalyst for the industrialization of certain chemical processes have caused widespread concern HPA as a Jian Hua agents have notable features: stoichiometric HPA composition is simple, structural determination, both the coordination compounds and metal oxides Structural characteristics of both acidic and redox properties. Many HPA (salts) are highly soluble in water and in oxygenated organic solvents, and