文献类型：期刊文献

英文题名：Removal of ferric ions from aluminum solutions by solvent extraction, part I: Iron removal

作者：Sun, Xiaoxue[1];Sun, Yuzhu[1];Yu, Jianguo[1]

机构：[1]E China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China

年份：2016

卷号：159

起止页码：18

外文期刊名：SEPARATION AND PURIFICATION TECHNOLOGY

收录：;EI(收录号：20160201783661);WOS:【SCI-EXPANDED(收录号:WOS:000370306700003)】；

基金：This work was financially supported by the National High Technology Research and Development Program of China (863 Program, No. 2011AA06A102), National Natural Science Foundation of China (No. 21306053), Key Project of Scientific Research Innovation of Shanghai Municipal Education Commission (No. 14ZZ063), Fundamental Research Funds for the Central Universities (WB1213008).

语种：英文

外文关键词：Ferric sulfate; Synergistic extraction; Stripping

摘要：This study investigated removal of ferric ions from aluminum solutions to explore the basic data for the recovery of aluminum resources from coal spoil. A novel synergic extractant, consisting of di-(2-ethylhexyl) phosphoric acid (P204) and tertiary amine (N235) with sulfonated kerosene (SIC) as diluent, was adopted in this research. The influences of reaction time, pH, temperature, and phase ratio, on the extraction processes were systematically investigated. Result showed the Fe removal was greater than 97% in only one contact under optimal conditions. The corresponding stripping processes were also performed focusing on the effects of phase ratio, H2SO4 concentration, and reaction time. Almost 99% Fe was easily stripped using 1 mol/L H2SO4. These findings indicated that compared with single extractants, the new synergic extractant shows significant advantages. (C) 2015 Elsevier B.V. All rights reserved.