湿法锑白的晶型转变  

CRYSTAL MODIFICATION OF ANTIMONY WHITE (Sb_2O_3) PREPARED BY HYDROMETALLURGY METHOD

作　　者：段学臣[1] 赵天从[1] 

机构地区：[1]中南工业大学非平衡材料科学与工程研究所

出　　处：《中国有色金属学报》1996年第1期36-39,共4页The Chinese Journal of Nonferrous Metals

摘　　要：研究了湿法锑白的白度和光敏性。通过真空干燥试验研究，对样品进次了Ｘ射线衍射定量分析，首次发现真空干燥可以使湿法锑白发生晶型转变，由斜方晶体转变为立方晶体。在适宜条件下，其转变率可达９９．６％。转变为立方晶的锑白白度高且见光稳定，光敏性消失。The degree of whiteness and the sensitivity to light of Sb_2O_3 prepared by hydrometallurgy method have been studied. Through vacuum heat treatment experiments and X-ray diffraction quantitative measurement,it was first discovered that the crystal form of Sb_2O_3 prepared by hydrometallurgy method can be turned from prismatic form into cubic ones (about 99. 6%) under suitable conditions by heat treatment in vacuum. The cubic Sb_2O_3acquired has high whiteness and is stable to light, i. e. its photo-sensitivity disappeared.

关 键 词：湿法冶金 锑白 晶型转变 白度 光敏性 

分 类 号：TF818.032[冶金工程—有色金属冶金]