The study of iron chlorination from bauxite for its enrichment
Abstract
The possibility of enriching bauxite by removing iron in low-temperature chlorination by gaseous chlorine in the presence of carbon as a reducer from coke and carbon monoxide, is investigated. Thermodynamic analysis points out such a probability. The influence of the working parameters on the chlorination of iron and aluminium was studied in an experimental procedure. The results obtained are in good agreement with the values of Gibbs energies for chlorination. They show that the conditions for process occurrence can be defined with a high degree of iron chlorination from boehmite hematite type (up to 90%) and low chlorination degree of aluminium (2-8%). Kinetic analysis of experimental results indicates that the process mechanism is very complex. Based on the application of corresponding models and calculation of activation energies, it can be concluded that iron chlorination is diffusion controlled.
Keywords:
chlorination / iron / bauxiteSource:
Scandinavian Journal of Metallurgy, 2001, 30, 2, 84-90Publisher:
- Munksgaard Int Publ Ltd, Copenhagen
DOI: 10.1034/j.1600-0692.2001.300205.x
ISSN: 0371-0459
WoS: 000167355300005
Scopus: 2-s2.0-17444441973
Institution/Community
Tehnološko-metalurški fakultetTY - JOUR AU - Vracar, RZ AU - Vukcević, SM AU - Parezanović, IS AU - Kamberović, Željko PY - 2001 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/351 AB - The possibility of enriching bauxite by removing iron in low-temperature chlorination by gaseous chlorine in the presence of carbon as a reducer from coke and carbon monoxide, is investigated. Thermodynamic analysis points out such a probability. The influence of the working parameters on the chlorination of iron and aluminium was studied in an experimental procedure. The results obtained are in good agreement with the values of Gibbs energies for chlorination. They show that the conditions for process occurrence can be defined with a high degree of iron chlorination from boehmite hematite type (up to 90%) and low chlorination degree of aluminium (2-8%). Kinetic analysis of experimental results indicates that the process mechanism is very complex. Based on the application of corresponding models and calculation of activation energies, it can be concluded that iron chlorination is diffusion controlled. PB - Munksgaard Int Publ Ltd, Copenhagen T2 - Scandinavian Journal of Metallurgy T1 - The study of iron chlorination from bauxite for its enrichment EP - 90 IS - 2 SP - 84 VL - 30 DO - 10.1034/j.1600-0692.2001.300205.x ER -
@article{ author = "Vracar, RZ and Vukcević, SM and Parezanović, IS and Kamberović, Željko", year = "2001", abstract = "The possibility of enriching bauxite by removing iron in low-temperature chlorination by gaseous chlorine in the presence of carbon as a reducer from coke and carbon monoxide, is investigated. Thermodynamic analysis points out such a probability. The influence of the working parameters on the chlorination of iron and aluminium was studied in an experimental procedure. The results obtained are in good agreement with the values of Gibbs energies for chlorination. They show that the conditions for process occurrence can be defined with a high degree of iron chlorination from boehmite hematite type (up to 90%) and low chlorination degree of aluminium (2-8%). Kinetic analysis of experimental results indicates that the process mechanism is very complex. Based on the application of corresponding models and calculation of activation energies, it can be concluded that iron chlorination is diffusion controlled.", publisher = "Munksgaard Int Publ Ltd, Copenhagen", journal = "Scandinavian Journal of Metallurgy", title = "The study of iron chlorination from bauxite for its enrichment", pages = "90-84", number = "2", volume = "30", doi = "10.1034/j.1600-0692.2001.300205.x" }
Vracar, R., Vukcević, S., Parezanović, I.,& Kamberović, Ž.. (2001). The study of iron chlorination from bauxite for its enrichment. in Scandinavian Journal of Metallurgy Munksgaard Int Publ Ltd, Copenhagen., 30(2), 84-90. https://doi.org/10.1034/j.1600-0692.2001.300205.x
Vracar R, Vukcević S, Parezanović I, Kamberović Ž. The study of iron chlorination from bauxite for its enrichment. in Scandinavian Journal of Metallurgy. 2001;30(2):84-90. doi:10.1034/j.1600-0692.2001.300205.x .
Vracar, RZ, Vukcević, SM, Parezanović, IS, Kamberović, Željko, "The study of iron chlorination from bauxite for its enrichment" in Scandinavian Journal of Metallurgy, 30, no. 2 (2001):84-90, https://doi.org/10.1034/j.1600-0692.2001.300205.x . .