TITLE:
Model for Evaluation of the Concentration of Dissolved Phosphorus during Leaching of Iron Oxide Ore in Oxalic Acid Solution
AUTHORS:
C. I. Nwoye
KEYWORDS:
Model, Evaluation, Phosphorus dissolution, Oxalic Acid, Iron Oxide Ore, Leaching.
JOURNAL NAME:
Journal of Minerals and Materials Characterization and Engineering,
Vol.8 No.3,
March
20,
2009
ABSTRACT: Model for evaluation of the concentration of dissolved phosphorus (relative to the final pH of the
leaching solution) during leaching of iron oxide ore in oxalic acid solution has been derived. It
was observed that the validity of the model is rooted in the relationship lnP = N/a where both
sides of the expression are approximately equal to 4. The model depends on the value of the final
pH of the leaching solution which varies with leaching time. In all, the positive or negative
deviation of the model-predicted phosphorus concentration from its corresponding value
obtained from the experiment was found to be less than 22%, which is quite within the
acceptable deviation limit of experimental results hence establishing the validity and precision of
the model.