利用铁尾矿制备泡沫玻璃复合材料  

Preparation of Foam Glass Composite from Iron Ore Tailings

作　　者：张淑会[1] 康志强[2] 薛向欣[3] 陈红建[1] 

机构地区：[1]河北理工大学冶金与能源学院,河北省现代冶金技术重点实验室,唐山063009 [2]河北理工大学资源与环境学院,唐山063009 [3]东北大学材料与冶金学院,沈阳110004

出　　处：《硅酸盐通报》2010年第2期486-490,共5页Bulletin of the Chinese Ceramic Society

基　　金：国家自然科学基金(50574030)资助项目;河北省教育厅(2008454)资助项目

摘　　要：以铁尾矿为主要原料,铝钒土、CaCO3和废玻璃调整成分合成基础玻璃粉末。以合成的基础玻璃为原料,CaCO3、Na2CO3为发泡剂,磷酸钠和硼砂为稳定剂制备泡沫玻璃复合材料。通过X射线衍射及扫描电镜等技术研究制品的相组成和显微结构,并分析其发泡机理。通过测定制品的容重和抗压强度与其他同类材料性能进行比较。结果表明:利用铁尾矿合成的基础玻璃粉末主要为非晶质;泡沫玻璃复合材料主要由Ca[(Fe,Mg)][SiO3]2相(钙铁辉石)和非晶态的玻璃体物质组成,内部多为圆形封闭气孔,气孔直径变化范围较大且分布比较均匀;制品的抗压强度可达62.25MPa,容重为2.056g/cm3,与其它同类材料相比,试验制得的泡沫玻璃复合材料具有优良的综合性能。Foam glass composites were prepared from basic glass powder which was synthesized by iron tailings, bauxite, CaCO3 and cracked glass, with CaCO3 and Na2CO3 as blister, sodium phosphate and borax as stabilizer. The phase composition and microstructure were determined by X-ray diffraction and scanning electron microscopy. The foam mechanics were analyzed. The capabilities were compared with other like materials by determining their bulk density and compression strength. The results show that the main phase of glass powder is amorphous mineral. The foam glass composite with circle enclosed pore is composed of Ca [ （ Fe, Mg） ] [ SiO3 ] 2 and amorphous glass. The diameter size of pore with even distribution is wider. The foam glass composite, whose compression strength is 62.25 MPa, and bulk density is 2. 056 g/cm3, has fine complex capabilities comparing with other similar materials.

关 键 词：铁尾矿 泡沫玻璃复合材料 发泡剂 稳定剂 

分 类 号：TQ171[化学工程—玻璃工业]