熔融铜渣天然气还原过程的研究  

Study on reduction process of melting copper slag with natural gas

作　　者：牛丽萍[1,2] 刘捷元 宋锦波[1] 郗文龙 

机构地区：[1]东北大学冶金学院 [2]东北大学多金属共生矿生态化冶金教育部重点实验室,沈阳110819

出　　处：《材料与冶金学报》2016年第3期200-204,208,共6页Journal of Materials and Metallurgy

基　　金：国家自然科学基金面上项目(No.51374064);国家级大学生创新创业训练计划项目自筹项目(项目编号:151087)

摘　　要：采用天然气对熔融态铜渣进行还原,通过单因素实验考察了反应温度、碱度、通气量、渣金分离时间对铜渣中铜和铁总收得率的影响.在惰性气氛下,反应温度为1 425℃,熔渣碱度为1.0,天然气过量系数为1.3倍,渣金分离时间为30 min时,渣中铁质量含量降到2.58%,铜含量由0.88%降低到0.03%,铜渣中铜和铁总收率达到94.09%.M elting copper slag was reduced by natural gas.Effects of temperature,basicity gas volume and slag- metal separation time on the overall recovery ratios of iron and copper were investigated by the single factor experiment.In an inert atmosphere,when temperature is 1 425℃,basicity is 1.0,the excess coefficient of natural gas is 1.3 and separation time is 30 min,iron content in the slag is reduced to 2.58%（mass fraction）,copper content is reduced to0.03%from 0.88%,and the overall recovery ratios of iron and copper reach 94.09%.

关 键 词：铜渣 天然气 还原 

分 类 号：TF8[冶金工程—有色金属冶金]