|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Rare Metal Extraction & Processing
||Extraction Separation of V and Fe in High Acid and High Iron Solution
||Weiguang Zhang, Zhang Ting'an, Guozhi Lyu, Yajing Tian, Biyu Long, Xuejiao Cao
|On-Site Speaker (Planned)
Aim to the separation problem of high concentration V-Fe in stronger acidic leaching solution of vanadium slag, a novel chelating extraction system is proposed to separate V and Fe. Influence factors including initial pH value, the extractant concentration, the phase ratio, temperature and time are investigated. The experiment results show that single extraction rate of V and Fe reach 94.34% and 0.39% respectively, when pH value is -0.4, organic phase composition is 30% Mextral 973H +70% sulfonated kerosene oil, O:A=1:1, stirring time is 10 min, extraction temperature is 30℃. The industrial experiment results of three levels countercurrent extraction show that , the total extraction rate of vanadium and iron can reach 97.44% and 0.23%, separation factor is 6410. The effective separation of V and Fe in high acid and high iron solution can be accomplished.