摘要：对Bi₂O₃ 超细粉体的制备方法、生产工艺和原理进行了综述，对比了各制备方法的优缺点，提出了Bi₂O₃ 超细粉体制备存在的 问题和今后发展方向。指出控制晶体粒度的大小和提高产品的均匀 性是制备超细Bi₂O₃ 粉体的关键问题，必须对制备过程的力学规律和动力学条件进行深入研究。 

关键词：Bi₂O₃ 超细粉体；制备方法；进展

Abstract：The detailed preparation methods, technological processes and principles of the bismuth trioxide superfine powder were summarized. The deficiencies, developing trend and the research direction of the bismuth trioride superfine powder were pointed out as well. It's shown that controlling the crystal size and improving the product homogeneity may be the key problems of preparation of Bi₂O₃superfine powder. So the thermodynamic rules and kinetic conditions of preparing process must be researched thoroughly.

Keywords：bismuth trioxide superfine powder; preparation methods; progress