?KINETICS OF ILMENITE DISSOLUTION BY HYDROFLUORIC ACID

Authors

  • E 0 Olanipekun Department of Chemistry, Ondo State University, Ado Ekiti, Nigeria

Keywords:

Hydrofluoric acid, Ilmenite dissolution, Kinetics

Abstract

The leaching behaviours of titanium and iron values were examined in hydrofluoric acid solutions of various strengths
attemperatures of 60 to 80nC. The rate was linearlydependent on the HFconcentration but inversely proportional to the
particle size of the ilmenite. Titanium leaching occurred at a much faster rate than iron leaching and the leaching rates
of both were independent of the stirring speed over the range 0-400 rpm. The observed effects of the relevant operating
variables on the dissolution rates were consistent with a kinetic model for chemical reaction control. The apparent
activation energy for titanium dissolution was 51.08 kJ mol:' and 53.90 kJ rnol' for iron dissolution.

Published

1998-08-24

How to Cite

Olanipekun, E. 0. (1998). ?KINETICS OF ILMENITE DISSOLUTION BY HYDROFLUORIC ACID. Biological Sciences - PJSIR, 41(4), 175–179. Retrieved from https://v2.pjsir.org/index.php/biological-sciences/article/view/2263

Issue

Vol. 41 No. 4 (1998): Pakistan Journal of Scientific and Industrial Research

Section

Articles