Journal Paper | Umudike Journal of Engineering Technology

DISSOLUTION KINETICS OF ISHIAGU GALENA IN HCL SOLUTION

Allen, M. A.

Department of Mechanical Engineering, Michael Okpara University of Agriculture Umudike, Nigeria

ABSTRACT

The dissolution of galena in hydrochloric acid solution have been effectively studied over the ranges of temperature, particle size, concentration, solid/liquid and stirring speed. All reactions in water bath were thermostatically controlled between temperature 40 to . The leaching rate was observed to increase with increase in temperature, concentration, solid/liquid ratio, stirring speed but decreases with an increase in particle size. The reaction kinetics showed the mixed kinetic model was the controlling step and the activation energy was determined to be 32.55 KJ/mol. The reaction order and Arrhenius constant were calculated to be 0.178 and e, respectively.

Keywords: Dissolution, leaching, mixed kinetic, reaction controlling step

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Published

Thursday, December 27, 2018

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Vol. 4 No. 2, DEC 2018

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GENERAL

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