以高岭土为载体,利用浸渍法制备了氧化钙和氟化钾负载高岭土固体碱(GCK);利用X射线粉末衍射(XRD)、扫描电子显微镜(SEM)、红外光谱(FT-IR)和哈密特指示剂法等技术手段对催化剂进行表征;考察了KF负载量和反应条件对月桂酸甲酯(ML)与乙二醇单甲醚(EGME)酯交换反应制备新型生物柴油产率的影响.结果表明,GCK碱强度(H_)在7.2～18.4之间,KCaF3为主要活性组分,当氟化钾负载量为25％、EGME与ML摩尔比3.0、催化剂用量相对于ML的质量分数为4.5％、120℃下反应2h,新型生物柴油的收率高达97.1％.最后对催化剂的重复利用性能进行了考察.
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