Optimization of iron and aluminum recovery in bauxite
作者机构：Department of Metallurgical EngineeringCollege of Materials and MetallurgyGuizhou UniversityGuiyang 550025GuizhouChina Guizhou Province Key Laboratory of Metallurgical Engineering and Process Energy SavingGuiyang 550025GuizhouChina
出 版 物：《Journal of Iron and Steel Research International》 (Journal of Iron and Steel Research, International)
年 卷 期：2020年第27卷第3期
页 面：310-318页
核心收录：
学科分类：080602[工学-钢铁冶金] 0806[工学-冶金工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0702[理学-物理学] 0801[工学-力学（可授工学、理学学位）]
基 金：The authors are appreciated for the financial support of the National Natural Science Foundation of China(51574095,51664005 and 51774102) Guizhou Alumina Production Technology and Technology Science and Technology Innovation Talent Team Project(Qian Ke He Talent Team Giant0.4005,Qian Ke He Platform Talent5788,the Cooperation Talent Group of Guizhou Department5626),Guizhou Metallurgical Resources Comprehensive Utilization Engineering Research Center Project(Qian Jiao He334) Guizhou University Postgraduate Innovation Fund(Research Institute of Technology 2016018)
主 题：High-iron bauxite Magnetic roasting Magnetic separation Recovery ratio Dissolution ratio
摘 要：Recovering iron and aluminum efficiently is the key route to utilize low-grade high-iron *** to optimize the iron separating process and elevate both Fe and Al recovery ratio,three different Fe-Al recovery processes with different magnetic roasting(R),Bayer leaching process(L)and magnetic separation(S)orders were *** studied processes include bauxite leaching→red mud roasting→magnetic separation(L-R-S),bauxite roasting→magnetic separation→leaching(R-S-L)and bauxite roasting→leaching→magnetic separation(R-L-S).The iron recovery ratio,Fe2O3 content in iron concentration and the bauxite dissolution ratio of each process were ***,the optimizations of the leaching,roasting and magnetic separation conditions were *** indicate that the R-S-L process should be an advisable order to recover both alumina and *** the three processes,the R-S-L route had the highest alumina dissolution ratio and iron recovery ratio,which was 86.20%and 69.58%,respectively,while the Fe2O3 content of the iron concentrate was 40.66%.
维普期刊数据库