Optimization of Salt Extraction Process through cyclic production and consumption of aluminium chloride by a novel anodic reaction
The present work presents the development and optimization of salt extraction process which has been previously used for recovery of valuable metals from slags and ores. In our previous studies on this process the extraction of metallic values were carried out through utilization of aluminium chloride (AlCl3) which acts as flux in the process. This however leads to high consumption of AlCl3. Present work introduces the new electrolysis system in which the required AlCl3 is produced in-situ by the modification of the electrode reactions. This had the added advantage of eliminating chlorine evolution during electrolysis. For this, electrolysis experiments were carried out on EAF slag for the recovery of chromium. SEM/EDS and XRD analyses of the cathode deposit confirmed the deposition of CrFe alloy on the cathode by the modified technique.
Salt extraction process electrode reaction AlCl3 formation chromium recovery
Babak Khalaghi Lidong Teng Seshadri Seetharaman
Dept. Materials Science and Engineering, Royal Institute of Technology, Stockholm, Sweden
国际会议
Ninth International Conference on Molten Slags,Fluxes and Salts(第九届国际熔渣、溶剂与熔盐学术会议 MOLTEN12)
北京
英文
1-5
2012-05-27（万方平台首次上网日期，不代表论文的发表时间）