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Microwave Assisted Dissolution of Sri Lankan Ilmenite: Extraction and Leaching Kinetics of Titanium and Iron Metals

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dc.contributor.author Premaratne, W.A.P.J.
dc.contributor.author Rowson, N.A.
dc.date.accessioned 2015-10-07T05:31:16Z
dc.date.available 2015-10-07T05:31:16Z
dc.date.issued 2014
dc.identifier.citation Premaratne, W.A.P.J. and Rowson, N.A. 2014. Microwave Assisted Dissolution of Sri Lankan Ilmenite: Extraction and Leaching Kinetics of Titanium and Iron Metals. Journal of Science, University of Kelaniya, 9: 01-14. en_US
dc.identifier.uri
dc.identifier.uri http://repository.kln.ac.lk/handle/123456789/9966
dc.description.abstract The kinetics of the leaching of titanium and iron from Sri Lankan ilmenite in a sulphuric acid medium heated by microwave energy is studied. The effects of the concentration of sulphuric acid, reaction temperature and particle size on the kinetics of dissolution of ilmenite are investigated. Results show that both the acid concentration and the temperature have significant effects on the rate of dissolutions of titanium and iron from ilmenite. The dissolution of both titanium and iron from ilmenite was controlled by a chemical reaction on the surface of ilmenite particles. Maximum extractions of 74.2 (±1.1) % of titanium and 71.3 (±0.8) % of iron from the ilmenite ore were achieved using a microwave leaching system of 600 W, 2.45 GHz. Experimental results further showed that the apparent activation energies for the dissolution of titanium and iron were 137 kJ mol-1 and 117.1 kJ mol-1 respectively. Therefore, microwave energy has a potential for the speedy and efficient leaching of ilmenite and in a commercial context it can be used as a more economical and environmental friendly process. The results of the mineralogical and chemical analysis studies for the ilmenite ore indicated that both ilmenite (FeTiO3) and pseudorutile (Fe2Ti3O9) minerals were present with a grade of 37.9% titanium. en_US
dc.language.iso en en_US
dc.publisher University of Kelaniya en_US
dc.subject Microwave energy en_US
dc.subject Ilmenite en_US
dc.subject Titanium en_US
dc.subject Leaching kinetics en_US
dc.title Microwave Assisted Dissolution of Sri Lankan Ilmenite: Extraction and Leaching Kinetics of Titanium and Iron Metals en_US
dc.type Article en_US


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