超细In_2O_3粉末的研制

PREPARATION OF ULTRAFINE In_2O_3 POWDER

采用溶胶－凝胶法制备了超细Ｉｎ２Ｏ３粉末，研究了产品的特性。实验表明，以１：１盐酸在６０￣８０℃溶解铟，用氨水作沉淀剂，控制ｐＨ５￣８，温度５０℃进行沉淀，所获沉淀在８０￣１００℃干燥后，再在８５０℃灼烧，可制得平均粒径０．０１５μｍ，纯度〉９９．９９％的Ｉｎ２Ｏ３粉末。设备与流程简单、污染少、产品质量高、性能好。

The ultrafine In2O3 powder was prepared by the Sol-gel method. And the properties of the product were studied.Expemiments show that under the conditions of 1:1 HCl leaching Indium at 60-80℃, NH3H2O as precipitating agent, controlling pH5-8 and temperature 50℃, drying the precipitate at 80-100℃, then burning at 850℃,The ultrafine In2O3 powder with average particle size 0. 015 um and purity 99. 99% can be obtained. This is a method with uncomplicated equipment and simple flowsheet,little pollution, high quality and good properies of the product.