The study of recovering iron by melting reduction from copper slag

摘要：

Slag cleaning is important from both an economical and environmental perspective. The abundance of iron in the copper slag is well worth to reclaim. Recovering iron of coppe slag was undertaken by melting reduction in this paper, the effects of C/Fe, the basicity and the holding time at 1773K were considered in this study. XRD analysis results indicated that the copper residue was mainly composed of 2FeO-SiO2 and other glassy silicates. DTG-DSC analysis results indicated that the reaction starting temperature was decreased from 1000K to 653K as the basicity raised from 0.187 to 1.2.1n N2 atmosphere, the iron reduction rate was up to 92.44％ under the condition of C/Fe=1.33,R=1.2,the holding time t=40min at T=1773K.

关键词： copper slag Iron reclaimed melting reduction

作者: LI Lei WANG Hua HU Jian-hang

作者单位: Faculty of Metallurgical and energy Engineering, Kunming University of Science and Technology, Engineering Research Center of Metallurgical Energy conservation and Emission Reduction, Ministry of Education Kunming, China

会议类型: 国际会议

会议名称: 2010 International Conference on Digital Manufacturing and Automation(2010 数字制造与自动化国际会议 ICDMA 2010)

会议地点: 长沙

会议语种:英文

页码: 823-827

在线出版日期: 2010-12-18（万方平台首次上网日期，不代表论文的发表时间）