Manganese metallurgy review. Part II: Manganese separation and recovery from solution

Zhang, Wensheng; Cheng, Chu Yong

doi:10.1016/j.hydromet.2007.08.009

Cited by 141 publications

(70 citation statements)

References 36 publications

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“…It could be observed that the precipitation rates of manganese increased with the increased amount of the alkaline additives. This was attributed to the fact that the soluble manganese was precipitated as manganese-bearing carbonate minerals by CO 2 under the action of NaOH or CaO which improved the pH value of the EMR slurry [17]. In addition, it was found that the precipitation rates of manganese with CaO were higher than with NaOH.…”

Section: Characterization Of Raw Emrmentioning

confidence: 99%

Carbonation precipitation of manganese from electrolytic manganese residue treated by CO2 with alkaline additives

Chen¹,

Liu²,

Qian³

et al. 2016

Proceedings of the 2015 2nd International Conference on Machinery, Materials Engineering, Chemical Engineering and Biotechnolog

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Abstract. This work reports the results of carbonate precipitation of soluble manganese by CO 2 with alkaline additives with the aim of eliminating the harm caused by electrolytic manganese residue (EMR). Results showed that CaO exhibited a better performance for the precipitation of manganese which was converted to rhodochrosite (MnCO 3 ) by infrared spectra and XRD analyses and that the precipitation rate of manganese reached 99.99% at 800 mL/min CO 2 flow rate and 5% CaO for 20 min reaction time. The leached concentration of manganese of the treated EMR was reduced to 0.2 mg/L and the leached concentrations of heavy metals of the treated EMR were less than the discharge standard of China (GB8978-1996). Another interesting finding was that the pH value and the ORP of the treated EMR slurry were about 7 and 320 mV respectively, which favoured landfill and reuse of EMR.

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Section: Characterization Of Raw Emrmentioning

confidence: 99%

Carbonation precipitation of manganese from electrolytic manganese residue treated by CO2 with alkaline additives

Chen¹,

Liu²,

Qian³

et al. 2016

Proceedings of the 2015 2nd International Conference on Machinery, Materials Engineering, Chemical Engineering and Biotechnolog

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“…27) A kind of carboxylic acid containing 9-11 carbons (Table 1) can be used to extract Co and Ni because the solubility of these extractants in aqueous is low. They can be used to extract metals from acidic solution as well as alkaline solution with NH 3 -(NH 4 )SO 4 . In acidic solution, Ni is electively extracted prior to the extraction of cobalt.…”

Section: Carboxylic Acid Extractantsmentioning

confidence: 99%

“…In comparing these methods, the cost of reagents, the efficiency of the processes, and the quality of the products are important. 4) In this review, the current technology employed in the separation of nickel and cobalt from solution is discussed. For this purpose, various extractants and ion exchange resins used in the separation of the two metals are introduced and their advantage and disadvantage is discussed.…”

Section: Introductionmentioning

confidence: 99%

Separation of Cobalt and Nickel from Aqueous Solution

Liu¹,

Lee²

2013

Journal of the Korean Institute of Resources Recycling

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Recovery of pure cobalt and nickel from diverse resources is important due to the increased demand for these metals. In order to get cobalt and nickel with high purity, separation of them from other metal ions is necessary. In this review, several methods to obtain pure cobalt or nickel solution, such as solvent extraction, ion exchange, precipitation were introduced and compared. For solvent extraction, the advantage and disadvantage of the separation process together with detailed process conditions were investigated.

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“…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). Moreover, SO 2 gas can be generated from flue gas produced by metal metallurgy industrial fields, such as sintering plants, coal-grade stations, etc.…”

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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Manganese metallurgy review. Part II: Manganese separation and recovery from solution

Cited by 141 publications

References 36 publications

Carbonation precipitation of manganese from electrolytic manganese residue treated by CO2 with alkaline additives

Carbonation precipitation of manganese from electrolytic manganese residue treated by CO2 with alkaline additives

Separation of Cobalt and Nickel from Aqueous Solution

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

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