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Advanced kinetics for calorimetric techniques and thermal stability screening of sulfide minerals

Citation

Iliyas, A and Hawboldt, K and Khan, F, Advanced kinetics for calorimetric techniques and thermal stability screening of sulfide minerals, Thermochimica Acta, 501, (1-2) pp. 35-45. ISSN 0040-6031 (2010) [Refereed Article]

DOI: doi:10.1016/j.tca.2009.12.020

Abstract

Thermal methods of analysis such as differential scanning calorimetry (DSC) provide a powerful methodology for the study of solid reactions. This paper proposes an improved thermal analysis methodology for thermal stability investigation of complex solid-state reactions. The proposed methodology is based on differential iso-conversional approach and involves peak separation, individual peak analysis and combination of isothermal/non-isothermal DSC measurements for kinetic analysis and prediction. The proposed thermal analysis, which coupled with Mineral Libration Analyzer (MLA) technique was employed to investigate thermal behavior of sulfide mineral oxidation. The importance of various experimental variables such as particle size, heating rate and atmosphere were investigated and discussed. The information gained from such an advanced thermal analysis method is useful for scale-up processes with potential of significant savings in plant operations, as well as in mitigating adverse environmental and safety issues arising from handling and storage of sulfide minerals. Crown Copyright © 2010.

Item Details

Item Type:Refereed Article
Keywords:DSC; Iso-conversional methods; MLA; Oxidation kinetics; Self-heating; Sulfide minerals; Calorimetric techniques; Complex solids; In-plant operations; Iso-conversional method; Isothermal DSC; Kinetic analysis; MLA; Oxidation kinetics; Peak analysis
Research Division:Engineering
Research Group:Maritime Engineering
Research Field:Ocean Engineering
Objective Division:Mineral Resources (excl. Energy Resources)
Objective Group:Environmentally Sustainable Mineral Resource Activities
Objective Field:Environmentally Sustainable Mineral Resource Activities not elsewhere classified
Author:Khan, F (Professor Faisal Khan)
ID Code:94538
Year Published:2010
Web of Science® Times Cited:4
Deposited By:NC Maritime Engineering and Hydrodynamics
Deposited On:2014-09-11
Last Modified:2014-10-13
Downloads:0

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