Treatment of an Indigenous Lepidolite Ore for Sustainable Energy Considerations

Baba, Alafara A.; Olaoluwa, Daud T.; Ayinla, Kuranga I.; Ibrahim, Abdullah S.; Balogun, Ayo F.; Girigisu, Sadisu; Adebola, Oluwagbemiga M.; Fasiku, Jumoke

doi:10.1007/978-3-030-92559-8_8

Cited by 2 publications

(3 citation statements)

References 17 publications

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“…(1). Selected residues after appropriate treatments were fully characterised by SEM, XRD and ICP-OES, while appropriate kinetic curves were established using the shrinking core models (Yan et al 2012a; Luong et al 2013; Vieceli et al 2017; Baba et al 2017, 2018, 2022; Kuang et al 2018; Olaoluwa 2022). where X is the recovery rate, mo is the initial mass of ore and mr is the final mass of the residue after the leaching process.…”

Section: Experimental Methodsmentioning

confidence: 99%

“…(1). Selected residues after appropriate treatments were fully characterised by SEM, XRD and ICP-OES, while appropriate kinetic curves were established using the shrinking core models (Yan et al 2012a;Luong et al 2013;Vieceli et al 2017;Baba et al 2017Baba et al , 2018Baba et al , 2022Kuang et al 2018;Olaoluwa 2022).…”

Section: Dissolution Processmentioning

confidence: 99%

“…Consequently, many hydrometallurgical processing routes have been proposed for beneficiating lithium minerals. These include chemical leaching consisting of unit operations utilising different salts or solvents or combination of salts and solvents such as salt roasting and water leaching (Chen et al 2011;Yan et al 2012a;Luong et al 2013 andBaba et al 2022), combination leaching with HF and H 2 SO 4 (Wang et al 2020), and autoclave H 2 SO 4 leaching (Amer 2008). Guan et al (2022) proposed a novel H 2 SO 4 leaching and aluminium hydroxide precipitation method to improve the extraction rate of Li by cleverly utilising Al from bauxitic claystone.…”

Section: Introductionmentioning

confidence: 99%

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Beneficiation of a Nigerian lepidolite ore by sulfuric acid leaching

Olaoluwa

Baba

Oyewole

2023

Mineral Processing and Extractive Metallurgy: Transactions of t

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The dissolution of a Nigerian lepidolite ore in sulphuric acid solution for its optimal industrial transformation was carried out. The degree of influence of the acid concentration, reaction temperature, particle diameter, and reaction time on the rate of the ore dissolution was investigated. These parameters were observed to enhance the rate of the dissolution as the acid concentration was increased from 0.1 to 1.5 mol/L, reaction temperature from room temperature (27 ± 2°C) to 75°C, particle diameter from 63 to 90 µm and reaction time from 5 to 120 min, respectively. The ore dissolution kinetics was studied using the shrinking core model, based on which the process was found to follow a diffusion-controlled mechanism as the rate-determining step. The activation energy of 18.1 kJ/mol lends support to this assertion. At optimal conditions, the formation of a pure lepidolite crystal (K2Li3Al3Si7O21F3: (96-900-0834)), recommended as a precursor for preparing industrial lithium sulphate was obtained.

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Section: Experimental Methodsmentioning

confidence: 99%

“…(1). Selected residues after appropriate treatments were fully characterised by SEM, XRD and ICP-OES, while appropriate kinetic curves were established using the shrinking core models (Yan et al 2012a;Luong et al 2013;Vieceli et al 2017;Baba et al 2017Baba et al , 2018Baba et al , 2022Kuang et al 2018;Olaoluwa 2022).…”

Section: Dissolution Processmentioning

confidence: 99%