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2025, Vol: 32, Issue: 3
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Original Research 


A Low Energy Saving Hydrometallurgical Treatment of a Nigerian Chromite Ore for Nigeria Iron and Steel Industries Utilization

Baba Alafara Abdulllahi, Padhy Kumar Subrat, Tripathy Chandra Bankim, Rukayat Titilayo Oyewumi-musa, Ranjan D. Dwari, Ibrahim Kuranga Ayinla.


Abstract
The most important factors' effects on the kinetics of leaching Nigerian chromite ore with sulfuric acid were thoroughly investigated. The shrinking core model was used to assess the impact of H2SO4 concentration, leaching temperature, and particle size on the rate of chromium leaching. On the other hand, as H2SO4 concentration, temperature, and particle size decrease, the rate of leaching dissolution accelerates. The ideal conditions were found to be a 3M H2SO4 concentration, 80°C system temperature, particle size range of +110-75m, and moderate churning. Under these circumstances, over 78% of the chromium was completely recovered. The dissolving process is regulated by a diffusion controlled mechanism, according to the kinetic analysis. In terms of concentration, the reaction order is 0.334, with a 28.43kJ/mol activation energy. Finally, to explain the process, a dissolving rate equation is derived: 1-2/3α-(1-α) kd[H+]0.336(S)0.179ro 0.023 e-2843/RT t = 2/3 = kd[H+]0.336(S)0.179ro 0.023 e-2843/RT t. Under optimum conditions, X-ray diffraction spectroscopy (XRD) and scanning electron microscopy (SEM) were utilized to analyze the residual product. These revealed that the raw sample's primary peaks of chromium containing ore had been degraded, leaving peaks such as flurite, brown millerite, and sellaite.

Key words: Chromite; Kinetics; Leaching; Lixiviant; Nigerian


 
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How to Cite this Article
Pubmed Style

Abdulllahi BA, Subrat PK, Bankim TC, Oyewumi-musa RT, Dwari RD, Ayinla IK. A Low Energy Saving Hydrometallurgical Treatment of a Nigerian Chromite Ore for Nigeria Iron and Steel Industries Utilization. NJE. 2023; 30(3): 67-74.

Web Style

Abdulllahi BA, Subrat PK, Bankim TC, Oyewumi-musa RT, Dwari RD, Ayinla IK. A Low Energy Saving Hydrometallurgical Treatment of a Nigerian Chromite Ore for Nigeria Iron and Steel Industries Utilization. https://www.njeabu.com.ng/?mno=151278 [Access: June 22, 2026].

AMA (American Medical Association) Style

Abdulllahi BA, Subrat PK, Bankim TC, Oyewumi-musa RT, Dwari RD, Ayinla IK. A Low Energy Saving Hydrometallurgical Treatment of a Nigerian Chromite Ore for Nigeria Iron and Steel Industries Utilization. NJE. 2023; 30(3): 67-74.


Vancouver/ICMJE Style

Abdulllahi BA, Subrat PK, Bankim TC, Oyewumi-musa RT, Dwari RD, Ayinla IK. A Low Energy Saving Hydrometallurgical Treatment of a Nigerian Chromite Ore for Nigeria Iron and Steel Industries Utilization. NJE. (2023), [cited June 22, 2026]; 30(3): 67-74.


Harvard Style

Abdulllahi, B. A., Subrat, . P. K., Bankim, . T. C., Oyewumi-musa, . R. T., Dwari, . R. D. & Ayinla, . I. K. (2023) A Low Energy Saving Hydrometallurgical Treatment of a Nigerian Chromite Ore for Nigeria Iron and Steel Industries Utilization. NJE, 30 (3), 67-74.


Turabian Style

Abdulllahi, Baba Alafara, Padhy Kumar Subrat, Tripathy Chandra Bankim, Rukayat Titilayo Oyewumi-musa, Ranjan D. Dwari, and Ibrahim Kuranga Ayinla. 2023. A Low Energy Saving Hydrometallurgical Treatment of a Nigerian Chromite Ore for Nigeria Iron and Steel Industries Utilization. Nigerian Journal of Engineering, 30 (3), 67-74.


Chicago Style

Abdulllahi, Baba Alafara, Padhy Kumar Subrat, Tripathy Chandra Bankim, Rukayat Titilayo Oyewumi-musa, Ranjan D. Dwari, and Ibrahim Kuranga Ayinla. "A Low Energy Saving Hydrometallurgical Treatment of a Nigerian Chromite Ore for Nigeria Iron and Steel Industries Utilization." Nigerian Journal of Engineering 30 (2023), 67-74.


MLA (The Modern Language Association) Style

Abdulllahi, Baba Alafara, Padhy Kumar Subrat, Tripathy Chandra Bankim, Rukayat Titilayo Oyewumi-musa, Ranjan D. Dwari, and Ibrahim Kuranga Ayinla. "A Low Energy Saving Hydrometallurgical Treatment of a Nigerian Chromite Ore for Nigeria Iron and Steel Industries Utilization." Nigerian Journal of Engineering 30.3 (2023), 67-74. Print.


APA (American Psychological Association) Style

Abdulllahi, B. A., Subrat, . P. K., Bankim, . T. C., Oyewumi-musa, . R. T., Dwari, . R. D. & Ayinla, . I. K. (2023) A Low Energy Saving Hydrometallurgical Treatment of a Nigerian Chromite Ore for Nigeria Iron and Steel Industries Utilization. Nigerian Journal of Engineering, 30 (3), 67-74.


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