International Journal on Science and Technology

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Volume 16 Issue 4
October-December 2025

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Evaluation of Gravity-Based Separation Techniques in the Beneficiation of Chromite Ores

Author(s) Dr. Zehra Çetinkaya
Country Turkey
Abstract Chromite is a critical industrial mineral used in the production of ferrochrome, which serves as the primary alloying material in stainless steel manufacturing, due to its chemical composition and physical properties. Natural chromite ores vary in terms of mineral associations, particle size distributions, and Cr₂O₃ content, which directly influence their beneficiation strategies. The growing global demand for high-grade chromite concentrates has intensified the need for effective separation methods. Gravity-based separation is widely applied for chromite beneficiation due to the significant specific gravity difference between chromite and gangue minerals. Key factors that determine the choice of beneficiation method include the ore's particle size, degree of liberation, chromite content, and the nature of associated gangue materials. In addition to gravity separation, techniques such as magnetic separation, flotation, and roasting-leaching combinations may also be employed depending on the mineralogical characteristics of the ore. In this study, the efficiency of both conventional (jig, shaking table, spiral concentrator) and advanced gravity separation devices (MGS, Knelson, Falcon) is evaluated to highlight their potential roles in chromite beneficiation.
Keywords Chromite ore, Gravity separation, Gangue minerals, Liberation degree, Beneficiation
Field Engineering
Published In Volume 16, Issue 4, October-December 2025
Published On 2025-10-05
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