重庆大学学报2017，Vol.40Issue(12)：59-70,12.DOI:10.11835/j.issn.1000-582X.2017.12.008
工业纯铁电解制备高纯铁
Preparation of high purity iron by industrial pure iron electrolysis
黄红兵 1彭其春 1邱文涛2
作者信息
- 1. 武汉科技大学 材料与冶金学院,武汉430081
- 2. 鄂州汉衍新材料公司,湖北 鄂州436000
- 折叠
摘要
Abstract
Pure iron is used as raw material to analyze the influencing factors of electrolytic iron through orthogonal design.Electro-deposition rate,current efficiency,purity and appearance of the electrolytic iron are taken as the indexes to find out the conspicuousness of each factor and their optimal combination scheme.The purity of electrolytic iron and its main impurities are analyzed by ICP-AES and SEM,and the impurity oxygen is also analyzed and purified through annealing reduction.Besides,the electrolytic iron is separated by using NaOH solution,and the concentration of SO42-is analyzed through ICP-AES.The results show the best combination of electrolysis iron test program is that the concentration of Fe2+solution is 50 g/L,the pH value is 4,the temperature is 25 ℃ as well as the current density is 100 A/m2.Under the optimal conditions,the electro-deposition rate is 0.549 g/h,the current efficiency is 89.2%,and the purity of electrolytic iron is over 99.98%.After annealing,oxygen content is greatly reduced and the amount of sulfate in the leachate is about 30 mg/L.From actual electrolysis conditions,it can be found that the main forms of oxygen and sulfur are iron oxides and ferrous sulfate.关键词
电解制备/高纯铁/正交设计/最佳因素组合Key words
electrolytic preparation/high-purity iron/orthogonal design/best factor combination分类
矿业与冶金引用本文复制引用
黄红兵,彭其春,邱文涛..工业纯铁电解制备高纯铁[J].重庆大学学报,2017,40(12):59-70,12.
