Flotation Behaviour and Adsorption Mechanism of Green Reagent (Potassium salt of groundnut oil) to Gold-bearing ore

Y.V. Adetula¹ , J.A Ajayi² , O.O. Alabi³

Section:Research Paper, Product Type: Conference-Paper
Vol.7 , Issue.6 , pp.26-30, Dec-2020

Online published on Dec 31, 2020

Copyright © Y.V. Adetula, J.A Ajayi, O.O. Alabi . This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
 

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Abstract :
The flotation behaviour and adsorption mechanism of green reagent (groundnut oil) to gold-bearing rock was investigated. Samples of the mineral were sourced from Iperindo deposit regions in Ilesha local government area, Osun State, Nigeria. The sourced samples were crushed, homogenized and sieved via 100% passing -63+45 ?m. The flotation behavior and adsorption via froth flotation concentration technique using green reagent (potassium salt of groundnut oil and groundnut oil) as flotation reagents. Flotation parameter used were pH value of 8.0, 8.5, 9.0, 9.5 and 10.0, at a pulp density of 50, 100, 150, 200 and 250 g/cm3, collector concentrations of 200, 300, 400, 500 and 600 mg/dm3 and agitation speed of 1200, 1250, 1300, 1350 and 1400 rpm respectively. Chemical analysis of the concentrate samples before and after froth flotation, revealed that the crude assaying of 103 ppm at -63+45 ?m has been successfully upgraded to 630 ppm Au at a recovery of 97.9% via a pulp density of 50 g/cm3, concentration of 600 mg/dm3, pH of 9 and agitation speed of 1350 rpm when potassium salts of groundnut oil was used as collector and groundnut oil as frother. Hence, this is the optimum froth flotation condition suitable for the recovery of gold ore. This show that potassium salt of groundnut oil is a potential flotation reagent for the flotation of minerals.

Key-Words / Index Term :
green reagent, groundnut oil, gold, adsorption, flotation, mechanism

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