Submicron yttrium oxide having high specific surface area and preparation method thereof

The invention belongs to the technical field of preparation of rare earth compounds, and in particular, relates to submicron yttrium oxide having high specific surface area and a preparation method thereof. Yttrium oxide with different specific surface areas and particle sizes can be prepared by changing the addition amounts of an organic dispersing agent and an anionic surfactant, oxalic acid isused as a precipitator, and the method has the advantages of large production batch, simple process and accordance with environmental protection requirements. The submicron yttrium oxide having high specific surface area and produced by the method avoids tedious post-treatment avoided, can be prepared by direct sieving, has the advantages of high purity, small ignition vector, low impurity contentand the like, and can meet the requirements of customers on product performance to a greater extent. 本发明属于稀土化合物的制备技术领域。具体涉及一种高比表面积、亚微米氧化钇及其制备方法。通过改变有机分散剂和阴离子表面活性剂的添加量，可以制得不同比表面积和粒度的氧化钇，采用草酸作沉淀剂，具有生产批量大，工艺简单，符合环保要求的优点。本发明方法生产的