Browsing by Author "Nwoye ,C. C."

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    Model for calculating the quantity of heat absorbed by oxalic acid solution relative to the final solution pH during leaching of iron oxide Ore
    (U. P., 2009-09) Nwoye, C. I.; Mbuka, I. E.; Nwoye ,C. C.; Obi, M. C.; Uzoije, A. P.
    Model for calculating 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 on the expression InQ = γN where both sides of the expression are approximately equal to 7. The model was found to depend on the value of the final solution pH measured during the experiment. The maximum deviation of the model predicted Q values from the corresponding experimental values was found to be less than 11% 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 agree and show that the leaching process is endothermic in nature.