?HYDROCHLORIC ACID LEACHING OF MINERALS FROM NIGERIAN SOIL

Authors

  • O Olaofe Chemistry Department, Ondo State University, PMB 5363, Ado-Ekiti State, Nigeria
  • S S Asaolu Chemistry Department, Ondo State University, PMB 5363, Ado-Ekiti State, Nigeria
  • EO Olanipekun Chemistry Department, Ondo State University, PMB 5363, Ado-Ekiti State, Nigeria
  • J B Fatuase Chemistry Department, Ondo State University, PMB 5363, Ado-Ekiti State, Nigeria

Keywords:

Leachate, Soil, Minerals.

Abstract

Effects of particle size on theleaching of some metals(Mn,Cu,Fe andZn) fromsoil was studied atroom temperature and
different hydrochloric acid concentrations. It was found that the metal concentration in the leachate decreases steadily
with increasing leaching time up to a limit with exception of iron. However,the metal concentration observed at 75f!m
and 288f!m did not differ largely after a long time of leaching. The highest metal concentration was obtained using a
particle sizeof75f!m.Alinearrelationshipwasestablishedbetweentheplotsofinverseofconcentration intheleachate and
inverse of leaching time.This observationconfirms thevalidity oftheproposed equation for thecorrelation of the concen-
tration in theleachate withleaching time. The correlationofthepredictedleachingconcentrations with theexperimentally
determined ones showed only 11.0%deviation.

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Published

1999-02-22

How to Cite

Olaofe, O., Asaolu, S. S., Olanipekun, E., & Fatuase, J. B. (1999). ?HYDROCHLORIC ACID LEACHING OF MINERALS FROM NIGERIAN SOIL. Biological Sciences - PJSIR, 42(1), 1–4. Retrieved from https://v2.pjsir.org/index.php/biological-sciences/article/view/2097

Issue

Vol. 42 No. 1 (1999): Pakistan Journal of Scientific and Industrial Research

Section

Articles