@article{msme2014222,
author={{Nwoye, C. I. and Nwakpa, S. O. and Adiele, I. D. and Allen, M. A. and Ede, S. E. and Idenyi, N. E.},
title={Sedimentation Analysis of Galena Concentrate and Predictability of Effective Particle Depth Based on Settling Time and Particle Diameter},
journal={Materials Science and Metallurgy Engineering},
volume={2},
number={2},
pages={17--25},
year={2014},
url={http://pubs.sciepub.com/msme/2/2/2},
abstract={Galena particles (concentrate) were analyzed by sedimentation method using conventional technique, appropriate apparatus and reagents. A critical evaluation of the relationship between effective particle depth and a consortium of factorials; settling time and particle diameter was carried out using a derived model which is two-factorial-quadratic in nature. Results of the sedimentation analysis show increased effective depth reached by the particles as a result of decrease in the descending particle diameter, and increased settling time. The validity of derived model; ¦Â = 2 x 10-5 ¦Ã2 - 5 x 10-4 ¦Ã ¨C 1.5 x 10-3 ¦Á + 0.2176 is rooted on the core expression ¦Â - 1.5 x 10-3 = 2 x 10-5 ¦Ã2 - 5 x 10-4 ¦Ã + 0.2176 where both sides of the expression are correspondingly approximately equal to 0.2. The model validity was verified through comparative evaluation of the settling rates from experimental and model-predicted results. These settling rates are 0.002 and 0.0025 m/mins. respectively which are in proximate agreement. The standard error incurred in predicting the effective particle depth for each value of settling time & particle diameter considered as evaluated from experiment and derived model are 0.0018 and 0.0027 & 0.0005 and 0.0024 respectively. Maximum deviation of model-predicted results from experiment was less than 3%, implying a confidence applicability level of about 97%.},
doi={10.12691/msme-2-2-2}
publisher={Science and Education Publishing}
}