An attainable region approach for the recovery of iron and zinc from electric arc furnace dust

M. C. Siame; J. Kaoma; N. Hlabangana; G. Danha

doi:10.1016/j.sajce.2018.12.002

An attainable region approach for the recovery of iron and zinc from electric arc furnace dust

M. C. Siame, J. Kaoma, N. Hlabangana, G. Danha

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

This study investigated the application of the attainable region optimization technique to establish the optimum hybrid hydrometallurgical and pyro-metallurgical process conditions required to treat the electric arc furnace dust. The analysis of the results obtained showed that a combination of an agitation speed of 800 rpm, sodium hydroxide concentration of 8.0 mol/L and a leaching temperature of 80 °C were the optimum conditions for the hydrometallurgical process, while a roasting temperature of 1200 °C, carbon content of 35.27% and a roasting period of 36 h were the optimum conditions for the pyro-metallurgical process. The iron recovered from the dust was recycled in order to upgrade the iron content of the electric arc furnace charge, thereby reducing both process loses and process wastes.

Original language	English
Pages (from-to)	35-42
Number of pages	8
Journal	South African Journal of Chemical Engineering
Volume	27
DOIs	https://doi.org/10.1016/j.sajce.2018.12.002
Publication status	Published - Jan 2019

All Science Journal Classification (ASJC) codes

Catalysis
Education
Energy (miscellaneous)
Process Chemistry and Technology
Fluid Flow and Transfer Processes
Filtration and Separation

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10.1016/j.sajce.2018.12.002

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title = "An attainable region approach for the recovery of iron and zinc from electric arc furnace dust",

abstract = "This study investigated the application of the attainable region optimization technique to establish the optimum hybrid hydrometallurgical and pyro-metallurgical process conditions required to treat the electric arc furnace dust. The analysis of the results obtained showed that a combination of an agitation speed of 800 rpm, sodium hydroxide concentration of 8.0 mol/L and a leaching temperature of 80 °C were the optimum conditions for the hydrometallurgical process, while a roasting temperature of 1200 °C, carbon content of 35.27% and a roasting period of 36 h were the optimum conditions for the pyro-metallurgical process. The iron recovered from the dust was recycled in order to upgrade the iron content of the electric arc furnace charge, thereby reducing both process loses and process wastes.",

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T1 - An attainable region approach for the recovery of iron and zinc from electric arc furnace dust

AU - Siame, M. C.

AU - Kaoma, J.

AU - Hlabangana, N.

AU - Danha, G.

PY - 2019/1

Y1 - 2019/1

N2 - This study investigated the application of the attainable region optimization technique to establish the optimum hybrid hydrometallurgical and pyro-metallurgical process conditions required to treat the electric arc furnace dust. The analysis of the results obtained showed that a combination of an agitation speed of 800 rpm, sodium hydroxide concentration of 8.0 mol/L and a leaching temperature of 80 °C were the optimum conditions for the hydrometallurgical process, while a roasting temperature of 1200 °C, carbon content of 35.27% and a roasting period of 36 h were the optimum conditions for the pyro-metallurgical process. The iron recovered from the dust was recycled in order to upgrade the iron content of the electric arc furnace charge, thereby reducing both process loses and process wastes.

AB - This study investigated the application of the attainable region optimization technique to establish the optimum hybrid hydrometallurgical and pyro-metallurgical process conditions required to treat the electric arc furnace dust. The analysis of the results obtained showed that a combination of an agitation speed of 800 rpm, sodium hydroxide concentration of 8.0 mol/L and a leaching temperature of 80 °C were the optimum conditions for the hydrometallurgical process, while a roasting temperature of 1200 °C, carbon content of 35.27% and a roasting period of 36 h were the optimum conditions for the pyro-metallurgical process. The iron recovered from the dust was recycled in order to upgrade the iron content of the electric arc furnace charge, thereby reducing both process loses and process wastes.

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JO - South African Journal of Chemical Engineering

JF - South African Journal of Chemical Engineering

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An attainable region approach for the recovery of iron and zinc from electric arc furnace dust

Abstract

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