TITLE:
Model for Predictive Analysis of Heat Absorbed by Oxalic Acid Solution Relative to the Solution Temperature during Leaching of Iron Oxide Ore
AUTHORS:
C. I. Nwoye, C. S. Nwobodo, C. Nlebedim, U.C. Nwoye, R. A. Umana, G. C. Obasi
KEYWORDS:
Model, Predictive Analysis, Heat Absorbed, Solution Temperature, Oxalic Acid, Iron Oxide Ore, Leaching.
JOURNAL NAME:
Journal of Minerals and Materials Characterization and Engineering,
Vol.8 No.7,
July
20,
2009
ABSTRACT: Model for predictive analysis of the quantity of heat absorbed by oxalic acid solution
during leaching of iron oxide ore has been derived. It was observed that the validity of the
model is rooted in the expression (lnQ)/N = √T where both sides of the relationship are
correspondingly almost equal. The model was found to depend on the value of the final
solution temperature measured during the experiment. The respective deviation of the
model-predicted Q values from the corresponding experimental values was found to be
less than 21% which is quite within the acceptable range of deviation limit of experimental
results. The positive values of heat absorbed as obtained from experiment and model
indicate and agree that the leaching process is endothermic in nature.