高铝LF精炼废渣提取氧化铝的实验研究  

Experimental Research on Extraction of Al_2O_3 from Waste LF Refining Slag Containing High Alumina

作　　者：周云[1] 栾晓彦[1] 董元篪[1] 李辽沙[1] 

机构地区：[1]安徽工业大学安徽省冶金工程与资源综合利用重点实验室,安徽马鞍山243002

出　　处：《矿产综合利用》2008年第2期38-41,共4页Multipurpose Utilization of Mineral Resources

基　　金：安徽省优秀科研带头人培养计划资助(科条2005205);安徽省科技攻关项目(07010300210)

摘　　要：以高铝LF精炼废渣为原料,通过碱溶、除杂、碳分、干燥等步骤,制备出氧化铝。结果表明,在渣料粒度为230目、溶出时间为2h、温度为85℃、Na2CO3浓度为10%、液固比为8时,氧化铝提取率可达到80%以上。Using waste LF refining slag containing high alumina as raw material, through alkaline digestion, impurity removal, carbonation and dryness, the product of alumina is prepared. The research results indicate that under the conditions of the size of slag material is 230 mesh, digesting time is 2h, reaction temperature is 85℃, the concentration of Na2CO3 is 10% ,and the ratio of liquid and solid is 8 ,the extraction rate can reach above 80%.

关 键 词：LF精炼废渣 溶出 氧化铝 

分 类 号：X758[环境科学与工程—环境工程]