Investigating the Characterization and Grindability Behaviour of Farin-lamba Cassiterite toward Effective Tin Oxide Production

Oladunni Oyelola Alabi

School of Engineering and Engineering Technology, Metallurgical and Materials Engineering Department, Federal University of Technology, Akure. PMB 704, Akure, Ondo State, Nigeria.

Gideon Giwa

School of Engineering and Engineering Technology, Metallurgical and Materials Engineering Department, Federal University of Technology, Akure. PMB 704, Akure, Ondo State, Nigeria.

Francis Gitau *

School of Engineering and Engineering Technology, Metallurgical and Materials Engineering Department, Federal University of Technology, Akure. PMB 704, Akure, Ondo State, Nigeria and School of Mines and Engineering, Mining and Mineral Processing Engineering Department, Taita Taveta University. P.O Box 635-80300, Voi, Kenya.

Gbadamosi Yemisi Elizabeth

School of Engineering and Engineering Technology, Metallurgical and Materials Engineering Department, Federal University of Technology, Akure. PMB 704, Akure, Ondo State, Nigeria.

*Author to whom correspondence should be addressed.


Abstract

Cassiterite has been an essential source of tin; its exploration and exploitation have become a priority worldwide. The effective beneficiation of cassiterite depends mainly on its grindability and effective liberation. The Modified Bond's grindability test is a method used to determine the work index, which is crucial in estimating the energy needed to grind an ore. This is crucial during mineral processing, as a slight deviation would affect the company's operating expenditure (OPEX). This study investigates the work index for Farin-Lamba cassiterite with reference to silica sand sourced from Igbokoda. The test ore (cassiterite) was analyzed using Energy Dispersed X-ray fluorescence spectrometer (ED-XRS), Petrographic Analysis, and Scanning Electron Microscope equipped with an Energy Dispersive Spectrum (SEM-EDS) to understand their chemical and mineralogical characteristics in relation to their grindability. The test ore and the reference material (silica sand) underwent comminution using 500g of each to a 100% passing 500 μm array of sieves arranged in (√2) series from 500μm to 63μm onto an automatic sieve shaker. The chemical and mineralogical analysis revealed the presence of gangue such as SiO2 and Al2O3, which increases the energy needed during communition; further, the presence of rough and large grain size in the ore also increases the energy needed for communition. The results were subjected to Gaudin Schuman's equation to determine the ore's work index, which was 14.664 KWh/ton for the test ore, which is standard for cassiterite, which ranges from 10-15 kWh/ton. Further, the energy needed for comminution was calculated to be 33.7272 Kwh, providing valuable insights into the energy efficiency of the grinding process. The evaluation of the grindability of Farin-Lamba cassiterite in relation to the reference ore not only contributes toward understanding the ore processing dynamics but also provides information needed for the optimization of energy consumed during the process of tin oxide production.

Keywords: Cassiterite, characterization, bonds equation, grindability, work index, comminution optimization, tin oxide, mineralogy, geochemistry


How to Cite

Alabi, O. O., Giwa, G., Gitau, F., & Elizabeth, G. Y. (2024). Investigating the Characterization and Grindability Behaviour of Farin-lamba Cassiterite toward Effective Tin Oxide Production. Journal of Engineering Research and Reports, 26(6), 103–112. https://doi.org/10.9734/jerr/2024/v26i61165

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