Characterization of Rayfield-Jos Columbite Deposit for Efficient Beneficiation and Recovery of Niobium and Tantalum

Nzeh, Nnaemeka Stanislaus; Popoola, Patricia; Adeosun, S. O.; Adeleke, A. A.

doi:10.1007/978-3-031-22576-5_18

Cited by 4 publications

(1 citation statement)

References 15 publications

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“…The upgrade and process of HM concentrates as well as other low grade minerals up to technical and marketable grades may however involve the employment of basic physical beneficiation process steps or routes, such as magnetic, electrostatic, conventional and enhanced gravity or centrifugal separations prior to froth flotation process and/or downstream pyro-hydrometallurgical process techniques [ [8] , [9] , [10] , [11] , [12] , [13] , [14] , [15] ]. Gravity separation is known to be the oldest and most common employed (pre)concentration process route, which is often conducted on most HM deposits and is usually focused on the rejection of low SG mineral.…”

Section: Introductionmentioning

confidence: 99%

Physical beneficiation of heavy minerals – Part 2: A state of the art literature review on magnetic and electrostatic concentration techniques

Nzeh,

Popoola

2024

Heliyon

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Section: Introductionmentioning

confidence: 99%

Physical beneficiation of heavy minerals – Part 2: A state of the art literature review on magnetic and electrostatic concentration techniques

Nzeh,

Popoola

2024

Heliyon

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Physical Concentration of Heavy Minerals: A Brief Review on Low and High Intensity Magnetic Separation Process Techniques

Nzeh,

Popoola,

Adeleke

et al. 2023

JOM

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Choice selection and application variation of physical beneficiation techniques usually employed on heavy minerals (HMs) depends greatly on mineralogy, composition, shape, particle size distribution, and physicochemical properties of the minerals. Recent advancements in the applications of HM products by modern science, engineering, technological, and metallurgical production industries, especially in the demand by nuclear and power industries, have significantly increased over the decades. This is the reason for the criticality and commerciality of HM products, which has necessitated their high demand by various industries. The recovery of HMs, such as Zr, Hf, Ti, V, Sn, Pb, Cu, Zn, Fe, Mn, Nb, Ta, and REE associated minerals, from their deposits is dependent on the extractive metallurgy of transition and refractory metals from their complex minerals. However, based on the mineral concentration effectiveness, as well as the metal extraction efficiency, several challenges have been encountered in their recovery and separation from associated impurities. On this premise, this brief review is focused on investigating magnetic separation process applications in the beneficiation/recovery of HMs. This will serve as a tool for efficient mineral concentration and upgrade as well as reducing the process steps and extraction complexity involved in the downstream measures of dissolution/decomposition and pyro-hydrometallurgical separation processes.

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Preliminary Investigation on the Thermodynamic Evaluation and Phase Evolution of Soda Ash-Assisted Roast Treatment of Alluvial Columbite for Recovery of Niobium and Tantalum

Nzeh,

Popoola,

Kgwedi

et al. 2024

JOM

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Alkaline roasting of a low-grade alluvial silica-based columbite bearing mineral from the Rayfield–Jos deposits (located in South Jos, Plateau state, Federal Republic of Nigeria) was conducted with specific emphasis on the evaluation of thermodynamic reactions as well as the mineral phase evolution during the extraction of Nb and Ta. An isothermal roasting procedure was investigated in order to understand the effects of different soda ash to sample mass ratios as well as the roasting temperatures on the measure or rate of the recoveries of Nb and Ta complexes. Thus, the feasibility rate of a successful alluvial columbite mineral roasting was determined to be influenced by certain optimal process conditions or optimum values of the study parameters, such as alkali to sample mass ratio and, more essentially, the roasting temperature. Therefore, the thermodynamic feasibility of the alkali-carbothermic roasting procedure was also investigated and the resulting chemical reactions were evaluated using the HSC chemistry 9.0 software. Premised on this, the results obtained as well as the thermodynamic data realized from the study demonstrated the feasibility of successful dissolutions of Nb and Ta into a pregnant leached-liquor stream (PLS), without the use of the conventional harmful, hazardous, toxic, and environmentally unfriendly hydrofluoric (HF) acid.

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Characterization of Rayfield-Jos Columbite Deposit for Efficient Beneficiation and Recovery of Niobium and Tantalum

Cited by 4 publications

References 15 publications

Physical beneficiation of heavy minerals – Part 2: A state of the art literature review on magnetic and electrostatic concentration techniques

Physical beneficiation of heavy minerals – Part 2: A state of the art literature review on magnetic and electrostatic concentration techniques

Physical Concentration of Heavy Minerals: A Brief Review on Low and High Intensity Magnetic Separation Process Techniques

Preliminary Investigation on the Thermodynamic Evaluation and Phase Evolution of Soda Ash-Assisted Roast Treatment of Alluvial Columbite for Recovery of Niobium and Tantalum

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