低硅铁尾矿制微晶玻璃的试验研究

Experimental Research on Preparation of Glass-ceramics Using Low-silicon Iron Tailings

用铁尾矿制备微晶玻璃,目前基本停留在高硅区(SiO2>70%),针对该状况,本试验以安徽低硅铁尾矿为主要原料,采用烧结法研究微晶玻璃的制备。在分析低硅铁尾矿化学组分的基础上,选择透辉石为微晶玻璃的主晶相,设计微晶玻璃的基础配方组成。通过条件试验确定了制备低硅铁尾矿微晶玻璃的较佳熔制工艺参数和基础配方,并对所制得的微晶玻璃的密度,耐酸失重率,耐碱性失重率等物化性能进行了测试,测试结果表明,以低硅铁尾矿为原料制备微晶玻璃是可行的。

At present the preparation of glass-ceramics mainly uses high-silicon（SiO270%）.Directed at this situation,this experiment adopts low-silicon iron tailings as main materials to study the preparation of glass-ceramics by sintering method.On the basis of the analysis of the composition of low silicon tailings,diopside was chosen the main phase of glass-ceramics and its basic recipe was designed.Through condition experiments the optimized process parameter and basic recipe were determined.Meanwhile,such physicochemical properties as density,acid-resistant and alkali-resistant weight loss rates of the prepared glass-ceramics were tested,whose results show that preparation of glass-ceramics using low-silicon iron tailings is feasible.