Beneficiation of Farin-Lamba (Plateau State, Nigeria) Cassiterite on Jig Machine at Varying Sieve Sizes for Tin Oxide Production

The global drive towards economic diversification emphasizes the exploration and exploitation of solid minerals such as tin oxide from cassiterite as Federal Government focus towards economic reform. This research aims at beneficiating Farin-Lamba cassiterite using jig machine at varying sieve sizes for the production of tin oxide. The crude ore was subjected to chemical analysis and jigging separation processing. The sample was ground to sieve ranges of 90 µm, 125 µm, 180 µm, 250 µm, and 355 µm. 500 g each of Farin-Lamba cassiterite prepared by grinding to 100% passing these sieves were processed using jigging separation method to obtain the underflow and the overflow products which were allowed to settled, filtered, and then dried using sun drying followed by oven drying at 105 ºC, then weighed and analyzed using ED-X-Ray Fluorescence spectrometer. The ED-XRFS result showed that as-received cassiterite assayed 26.120% ZrO2, 15.397% SiO2, 13.08% SnO2, 10.644% TiO2, 9.860% CuO, and other compounds in trace forms. The chemical analysis of the underflow and overflow samples after the processing using a jig machine revealed that the optimum result was obtained at 125 µm with 42.057% SnO2, 78.17% recovery, 3.22 enrichment ratio, and 4.11 concentration ratio respectively. It was deduced from the research that the optimum results of 42.057% obtained for SnO2, at 125 µm is low. However, the tin oxide obtained should be reprocessed either by re-cleaning using Jig at 125 µm sieve size or reprocessed using another processing method to achieve the required metallurgical grade of 65% Tin oxide for metal smelting process in extractive metallurgy outfit.

Beneficiates, Farin-Lamba deposits, Jig, Cassiterite, Tin Oxide

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