Recovery of Manganese from Spent Batteries Using Guar Meal as a Reducing Agent in a Sulfuric Acid Medium

Kurşunoğlu, Sait; Kaya, Muammer

doi:10.1021/ie401682f

Cited by 9 publications

(2 citation statements)

References 47 publications

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“…and Kursunoglu et al . used S/L ratios of 1/5 and 1/10 (g of BM/ mL of solution) and obtained similar ƞ leaching as in the present study for Zn and Mn 28,35,38 …”

Section: Resultssupporting

confidence: 82%

Extraction and separation of potassium, zinc and manganese issued from spent alkaline batteries by a three‐unit hydrometallurgical process

García,

Delgado Cano,

Valverde

et al. 2024

J of Chemical Tech & Biotech

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BackgroundBatteries play a vital role in meeting global energy needs. When their life cycle concludes, improperly discarded spent batteries can pose environmental risks primarily due to their metal content. In this sense, the recycling of metals contained in spent batteries could mean a huge advantage if they are extracted and purified using environmentally friendly processes.ResultsIn this study, the recovery of potassium (K), zinc (Zn) and manganese (Mn) from alkaline batteries was performed using a hydrometallurgical process consisting of neutral, acid and acid reductive leaching steps at room temperature and atmospheric pressure to extract K, Zn and Mn. In the neutral leaching step, 76.8 ± 3.4 (wt. %) of the K present in the spent batteries was extracted. Thus, in the acid leaching step, 90.9 ± 0.1 (wt. %) of the initial Zn and 36.7 ± 0.4 (wt. %) of the initial Mn was extracted using sulfuric acid (H2SO4) 2 M. In a subsequent acid reductive leaching step using H2SO4 2 M and oxygen peroxide (H2O2) 0.8 M as reducing agent, 8.7 ± 0.1 (wt. %) of the initial Zn and up to 49.4 ± 0.2 (wt. %) of the initial Mn were extracted.ConclusionThe three‐unit process led to an overall extraction of 99.6 ± 0.3 (wt. %) of Zn and 86.1 ± 0.1 (wt. %) of Mn. Regarding the latter step, the extraction was not 100% because Mn complexes which are nearly insoluble were generated. This shows that extraction of valuable minerals from industrial residues is possible by hydrometallurgical processes.This article is protected by copyright. All rights reserved.

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“…and Kursunoglu et al . used S/L ratios of 1/5 and 1/10 (g of BM/ mL of solution) and obtained similar ƞ leaching as in the present study for Zn and Mn 28,35,38 …”

Section: Resultssupporting

confidence: 82%

Extraction and separation of potassium, zinc and manganese issued from spent alkaline batteries by a three‐unit hydrometallurgical process

García,

Delgado Cano,

Valverde

et al. 2024

J of Chemical Tech & Biotech

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“…Therefore, in recent years, hydrometallurgical recovery of Mn from low-grade manganese ore is an encouraging technology because it meets the clean production and lowcarbon economy requirements. Nowadays, various reducing agents are proving to effectively extract manganese from lowgrade manganese ore, including leaching with sulfur dioxide (Petrie, 1995;Naik et al, 2000;Naik et al, 2002;Naik et al, 2003;Zheng et al, 2007), pyrite (Kanungo, 1999;Vračar and Cerović, 2000), hydrogen peroxide (El Hazek et al, 2006;Nayl et al, 2011), ferrous ion (Zhang et al, 2015a), oxalic acid (Sahoo et al, 2001), organic reductants (Trifoni et al, 2000;Hariprasad et al, 2007;Kursunoglu and Kaya, 2013;Yi et al, 2015) and bio-reductions (Konishi et al, 1997;Acharya et al, 2003). Among these reduction processes, Mn reduction leaching by SO 2 has proven to be promising because of the advantages of rapid leaching rate (Grimanelis et al, 1992;Zhang and Cheng, 2007b), high leaching efficiency (Naik et al, 2000), and selectivity of Mn leaching (Khalafalla and Pahlman, 1981;Naik et al, 2000).…”

Section: Introductionmentioning

confidence: 99%

Study on Separation of Manganese from Iron in High-Iron Pyrolusite Ore by Leaching with Simulated Flue Gas

Deng

et al. 2017

J. Chem. Eng. Japan / JCEJ

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Due to the depletion of high-grade manganese ore, much attention has turned to recover manganese from low-grade ores; however, these are usually associated with high-iron content. Moreover, the conventional process of extracting Mn from iron-rich low grade manganese oxide ore focused on recovery of Mn, while ignoring the leaching characteristics of Fe. Hence, simultaneous investigations on leaching behavior and separation e ciency of both manganese and iron were carried out for attaining high recovery of manganese with low iron content from the high-iron low-grade pyrolusite ore using simulated ue gas as the reductant. The e ects of leaching parameters, ue gas components and initial particle size on the leaching e ciency of Mn and Fe were studied, and the results indicated that higher separation e ciency of Mn from iron was achieved at lower SO 2 concentration, O 2 concentration and suitable pulp density. The experimental validation revealed that 93.12% Mn and only 2.57% Fe were extracted under the optimal operating conditions: SO 2 percentage of 5%, O 2 percentage of 1%, reaction temperature of 35°C, solid-to-liquid ratio of 250 g/L, and more than 120 min. Kinetic modelling has indicated that the Mn leaching rate is controlled by the rate of di usion of SO 2 /O 2 from the gas phase to the liquid phase, and the rate of di usion of product or reactants to the ore surface through an inert product layer is the rate-limiting step for Fe dissolution.

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Recovery of Manganese from Scrap Batteries of Mobile Phones

Dutta

Panda

Jha

et al. 2018

Rare Metal Technology 2018

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Recovery of Manganese from Spent Batteries Using Guar Meal as a Reducing Agent in a Sulfuric Acid Medium

Cited by 9 publications

References 47 publications

Extraction and separation of potassium, zinc and manganese issued from spent alkaline batteries by a three‐unit hydrometallurgical process

Extraction and separation of potassium, zinc and manganese issued from spent alkaline batteries by a three‐unit hydrometallurgical process

Study on Separation of Manganese from Iron in High-Iron Pyrolusite Ore by Leaching with Simulated Flue Gas

Recovery of Manganese from Scrap Batteries of Mobile Phones

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