The effects of the calcination temperature applied to potassium titanates on their basic properties and catalytic activities for the interesterification of methyl stearate and soybean oil were assessed. Calcination at temperatures greater than 873 K was found to promote the migration of potassium from the bulk to the surface, increasing the number of strongly basic sites and enhancing the catalytic activity.

中文翻译：

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钛酸钾对硬脂酸甲酯和豆油的酯交换作用

评估了煅烧温度对钛酸钾的基本性质和催化活性的影响，对硬脂酸甲酯和大豆油进行酯交换。发现在大于873 K的温度下煅烧可促进钾从块体向表面的迁移，增加强碱性位点的数量并增强催化活性。