采用DTA和吸附吡啶的FT-IR表征氯氧化锆的表面酸性,用Hammett指示剂测定其酸强度,以催化合成环己酮2,3-丁二醇缩酮为探针反应优化缩酮反应条件,并考察它对其他缩酮反应的催化活性,比较了不同催化剂对缩酮活性的影响.实验表明,氯氧化锆表面存在Bronsted酸中心,能使Hammett指示剂对-硝基苯胺(Ho=+0.99)变色,环己酮2,3-丁二醇缩酮产率可达96.5%,对其他缩酮化反应均具有良好的催化活性.且催化剂易回收,反应后处理简单,无废酸排放.
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