某赤铁矿尾矿的综合利用  

Comprehensive Utilization of Hematite Tailings

作　　者：彭会清[1] 安显威[1] 余盛颖[1] 

机构地区：[1]武汉理工大学资源与环境工程学院,湖北武汉430070

出　　处：《矿产综合利用》2007年第5期35-39,共5页Multipurpose Utilization of Mineral Resources

基　　金：湖北省重点攻关项目(2005AA101B20)

摘　　要：对赤铁矿尾矿采用酸浸—还原工艺,以达到固废资源化、减量化的目的。结果表明:在酸浸过程中,当反应温度为100℃、浸出时间为2.5h、搅拌转速为400 r/min、溶液硫酸浓度为45%、硫酸过量系数为1.5时,全铁回收率达82.3%。在还原过程中,在反应时间为2h、反应温度为50℃、铁屑的过量系数为1.4时,可以制得一等品绿矾产品。The hematite tailings were treated by acid leaching-reduction process to reach Recycling, Reducing and Reusing of the solid wastes. The results indicated that when reaction temperatury is 100℃, leaching time is 2.5h, agitation intensity is 400r/min ,the sulfuric acid concentration of solution is 45% and excess coefficient of sulfuric acid is 1.5 ,recovery of iron from hematite is 82.3%. In reduction process,when reaction time is 2h,reaction temperature is 50℃ and excess coefficient of iron filings is 1.4, the quality green vitriol can be made.

关 键 词：赤铁矿 酸浸 硫酸亚铁 

分 类 号：X751[环境科学与工程—环境工程]