中文摘要：

以Versatic10为萃取剂从含钙、镁、钾、钠的模拟硫酸锰浸出液中选择性萃取锰.在萃取剂浓度30％、皂化率50％、相比O/A=4/1、35℃两级逆流萃取10 min后,得到平均锰含量为13.5 g/L的负载有机相,锰萃取率达85.34％.负载有机相和2 mol/L硫酸反萃液在相比O/A=8/1、反萃温度35℃、两级逆流反萃的条件下,得到平均锰含量为107.89 g/L的反萃后液,锰反萃率达99.94％,其中钙、镁、钾、钠的浓度均小于15 mg/L.反萃后液经活性炭吸附、浓缩结晶并干燥后,获得了满足电池级高纯硫酸锰要求的一水硫酸锰产品.

英文摘要：

Manganese was selectively extracted from a simulated multi-metal manganese sulfate solution rich in calcium,magnesium,potassium and sodium with extractant Versatic10.Manganese extraction ratio and average content of manganese in loaded organic phase reach 85.34％ and 13.5 g/L respectively,under the following conditions including volume concentration of extractant of 30％,saponification ratio of 50％,phase ratio of O/A=4 ∶ 1,two-stage countercurrent extraction for 10 min at 35 ℃.The manganese stripping ratio is 99.94％ by two-stage countercurrent stripping of manganese from loaded organic phase by 2 mol/L sulfuric acid with O/A=8 ∶ 1 at 35 ℃.In stripped solution,the average content of manganese is 107.89 g/L,and the concentrations of calcium,magnesium,potassium and sodium are all less than 15 mg/L.By treating the stripped solution with activated carbon adsorption,condensation crystallization and desiccation,manganese sulfate monohydrate,which meets requirement of high purity manganese sulfate for battery,is obtained.