Characterization of Sumbawa manganese ore and recovery of manganese sulfate as leaching products

Kusumaningrum, Retno; Rahmani, Siti Astari; Widayatno, Wahyu Bambang; Nugroho, Dwi; Maulana, Syahrizal; Rochman, Nurul Taufiqu; Amal, Muhamad Ikhlasul

doi:10.1063/1.5038324

Cited by 5 publications

(2 citation statements)

References 14 publications

(16 reference statements)

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“…Meanwhile, X-ray diffraction pattern of the ore was quantitatively analyzed using a High Score Plus software using the Rietveld method and compared to the COD standard database. The analysis result confirms that the manganese ore is pyrolusite (MnO2) in a space group of P42/MNM, with the four high intense peaks at angles of 28.67°, 37.37°, 56.64° and 72.47 (Kusumaningrum et al, 2018). Those peaks, along with other peaks, match with that of the ID number of 1514110 and give GoF value of 2.…”

Section: Sample Preparationsupporting

confidence: 63%

Leaching optimization of manganese ore from North Central Timor using H2O2 as a reducing agent

Abi,

Tjahjanto,

Prananto

2023

IMJ

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Optimization of manganese ore leaching process from North Central Timor, Indonesia has been investigated. The final product of the leaching process was MnSO4. Variables that were optimized during the process were volume of H2O2, reaction temperature, and reaction time. The final products were characterized by FTIR, powder-XRD, XRF, and AAS. Experimental data shows that the optimum conditions for the leaching process were 50 mL H2SO4 4 M, 25 mL H2O2 2 M, in which the reaction was done at room temperature for two hours. This optimum condition resulting in 38.2% of Mn extraction with 96.88% purity. Based on powder-XRD, the products were a mixture of crystalline MnSO4.4H2O, MnSO4.5H2O and [NH4]8[Mn8(SO4)12].

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Section: Sample Preparationsupporting

confidence: 63%

Leaching optimization of manganese ore from North Central Timor using H2O2 as a reducing agent

Abi,

Tjahjanto,

Prananto

2023

IMJ

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“…It also happens that manganese ore does not occur only in the oxide form. The ore with a high content of manganese (78.8% Mn) from Indonesian Sumbawa can serve as an example, in which in addition to the main oxide form (pyrolusite) it also contains rhodochrosite (carbonates) and polymorphic rhodonite variation (silicates) [202].…”

Section: Manganese Ores Propertiesmentioning

confidence: 99%

Mineral Materials Coated with and Consisting of MnOx—Characteristics and Application of Filter Media for Groundwater Treatment: A Review

et al. 2020

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For groundwater treatment, the technologies involving oxidation on MnOx filter bed are beneficial, common, and effectively used. The presence of MnOx is the mutual feature of filter media, both MnOx-coated mineral materials like quartz sand and gravel, chalcedonite, diatomite, glauconite, zeolite, or anthracite along with consisting of MnOx manganese ores. This review is based on the analysis of research and review papers, commercial data sheets, and standards. The paper aimed to provide new suggestions and useful information for further investigation of MnOx filter media for groundwater treatment. The presented compilations are based on the characteristics of coatings, methods, and conditions of its obtaining and type of filter media. The relationship between the properties of MnOx amendments and the obtained purification effects as well as the commonly used commercial products, their features, and applications have been discussed. The paper concludes by mentioning about improving catalytic/adsorption properties of non-reactive siliceous media opposed to ion-exchange minerals and about possible significance of birnessite type manganese oxide for water treatment. Research needs related to the assessment of the use MnOx filter media to heavy metals removal from groundwater in field operations and to standardize methodology of testing MnOx filter media for water treatment were identified.

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Controlled release of micronutrients from surface-modified polymer films for agricultural applications

2021

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Characterization of Sumbawa manganese ore and recovery of manganese sulfate as leaching products

Cited by 5 publications

References 14 publications

Leaching optimization of manganese ore from North Central Timor using H2O2 as a reducing agent

Leaching optimization of manganese ore from North Central Timor using H2O2 as a reducing agent

Mineral Materials Coated with and Consisting of MnOx—Characteristics and Application of Filter Media for Groundwater Treatment: A Review

Controlled release of micronutrients from surface-modified polymer films for agricultural applications

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