Separation of zinc and iron from secondary manganese sulfate leachate by solvent extraction

Co‐precipitation of NCM 811 Using Recycled and Purified Manganese: Effect of Impurities on the Battery Cell Performance

“…[18] In solvent extraction purification over 99 % zinc and iron content of the solution could be removed. [19] Aim of this research is to study applicability of manganese sulfate solutions containing impur-ities present in manganese sulfate solution obtained from industrial manganese sludge for synthesis of LiNi 0.8 Co 0.1 Mn 0.1 O 2 cathode material.…”

“…In our previous study, we introduced method to selectively separate manganese from sparingly soluble sulfates present in zinc industry's manganese‐rich anode sludge [18] . In solvent extraction purification over 99 % zinc and iron content of the solution could be removed [19] . Aim of this research is to study applicability of manganese sulfate solutions containing impurities present in manganese sulfate solution obtained from industrial manganese sludge for synthesis of LiNi 0.8 Co 0.1 Mn 0.1 O 2 cathode material.…”

Study on the Adsorption Mechanism of Cobalt and Nickel in Manganese Sulfate by δ-MnO2

“…Manganese sulfate is the most important and basic manganese source material for cathode materials of manganese-based power lithium batteries. So it is necessary to remove impurities in the manganese sulfate solution to obtain high-purity manganese sulfate products. , The common impurity removal methods include the sulfide precipitation method, − fluorination method, − carbonation method, , extraction method, and crystallization method. , There are many shortcomings such as the long procedure, many control nodes, high requirements, high cost, large amount of slag, and low efficiency in the above processes. Therefore, developing an effective, short process with low environmental harm, low cost, and low slag removal has become a research hotspot in manganese sulfate production.…”

“…So it is necessary to remove impurities in the manganese sulfate solution to obtain high-purity manganese sulfate products. 10 , 11 The common impurity removal methods include the sulfide precipitation method, 12 − 14 fluorination method, 15 − 17 carbonation method, 18 , 19 extraction method, 20 and crystallization method. 21 , 22 There are many shortcomings such as the long procedure, many control nodes, high requirements, high cost, large amount of slag, and low efficiency in the above processes.…”