Reaction Mechanism and Thermodynamics of Segregation Roasting of Iron Oxide

Bhattacharya, Maitreyee (2016) Reaction Mechanism and Thermodynamics of Segregation Roasting of Iron Oxide. International Journal of Mineral Processing and Extractive Metallurgy, 1(5) . pp. 64-69.



This paper presents the reduction mechanism of iron recovery from pure ferric oxide by the segregation roasting-magnetic separation process both from the chemical reaction and physical phenomena point of view. In segregation roasting process, coal is used as the reducing agent and calcium chloride as chlorinating agent. Segregation roasting of iron oxide has been studied at different temperatures from 800 to 1000°C varying the chloride and carbon percentages. The same experimental conditions have been adopted to recover iron from mill scale by the process of segregation roasting. By segregation roasting, iron oxide is reduced by a combination of chlorination, volatilization and hydrogen reduction. Elucidation of the reaction mechanism of segregation process is being attempted in this present study. Characterization of the segregated iron particles recovered after magnetic separation both from ferric oxide and mill scale is studied by electron probe microscopy analyzer.

Item Type:Article
Official URL/DOI:
Uncontrolled Keywords:Segregation Roasting, Iron Oxide, Alkali Chloride, Thermodynamics, Reaction Mechanism, EPMA, SEM
Divisions:Metal Extraction and Forming
ID Code:7831
Deposited By:Dr. M Bhattacharyya
Deposited On:28 Jun 2018 14:42
Last Modified:28 Jun 2018 14:42
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