稀土氧化物超微粉的催化酯化行为

The Catalytic Esterification of the Rare-Earth Oxidate UFPs

制备了5种稀土氧化物超微粉并考察了它们的催化酯化的活性,发现超微粉的催化活性均高于普通稀土氧化物,Y_2O_3超微粉催化酯化产物的酸值接近0.1,有应用前景。

Five kinds of rare-earth oxidate ultrafine powders were prepared, and the activity of their catalytic esterification was investigated. It is found that the activity of the UFPs is higher than that of the conventional ones. When Y2O3-UFP is used as the catalyst for esterification, the value of acidity of the product almost reached 0.1. It has broad prospects for application.