Extraction of vanadium from low-vanadium grade magnetite concentrate pellets with sodium salt

This study reported the extraction of vanadium from low-vanadium grade magnetite concentrate pellets using sodium salt. 71.1% of vanadium can be extracted under the following optimal conditions: pelletizing with 5 wt% Na2CO3, preheating at 1050 °C for 10 min, roasting at 1250 °C for 10 min, and wate...

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Autores principales:	Shuhui Zhang, Guanghui Li, Rendong Xiao, Jun Luo, Lingyun Yi, Mingjun Rao
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Vanadium extraction Magnetite concentrate Sodium salt roasting Water leaching Mining engineering. Metallurgy TN1-997
Acceso en línea:	https://doaj.org/article/1f2393523f914a4a81c90e250911722f
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spelling	oai:doaj.org-article:1f2393523f914a4a81c90e250911722f2021-11-22T04:26:32ZExtraction of vanadium from low-vanadium grade magnetite concentrate pellets with sodium salt2238-785410.1016/j.jmrt.2021.11.039https://doaj.org/article/1f2393523f914a4a81c90e250911722f2021-11-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2238785421013181https://doaj.org/toc/2238-7854This study reported the extraction of vanadium from low-vanadium grade magnetite concentrate pellets using sodium salt. 71.1% of vanadium can be extracted under the following optimal conditions: pelletizing with 5 wt% Na2CO3, preheating at 1050 °C for 10 min, roasting at 1250 °C for 10 min, and water leaching at 120 °C for 120 min with a liquid:solid ratio of 5:1 (mL/g) in the bench-scale experiment. XPS and SEM-EDS results showed that part of trivalent vanadium was not oxidized completely during the sodium salt roasting and still occurred in the iron mineral phase; consequently, this part of vanadium was retained in the leached iron ore. The sodium salt roasting parameters are consistent with those of the iron ore oxidized pellets produced by grate-kiln or straight-grate methods; thus, the production efficiency of sodium salt roasting for vanadium extraction can be improved significantly. Pilot-scale experiment was further performed to verify the feasibility of the recommended method in a traveling grate, a better vanadium extraction ratio of 79.1% was achieved.Shuhui ZhangGuanghui LiRendong XiaoJun LuoLingyun YiMingjun RaoElsevierarticleVanadium extractionMagnetite concentrateSodium salt roastingWater leachingMining engineering. MetallurgyTN1-997ENJournal of Materials Research and Technology, Vol 15, Iss , Pp 5712-5722 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Vanadium extraction Magnetite concentrate Sodium salt roasting Water leaching Mining engineering. Metallurgy TN1-997
spellingShingle	Vanadium extraction Magnetite concentrate Sodium salt roasting Water leaching Mining engineering. Metallurgy TN1-997 Shuhui Zhang Guanghui Li Rendong Xiao Jun Luo Lingyun Yi Mingjun Rao Extraction of vanadium from low-vanadium grade magnetite concentrate pellets with sodium salt
description	This study reported the extraction of vanadium from low-vanadium grade magnetite concentrate pellets using sodium salt. 71.1% of vanadium can be extracted under the following optimal conditions: pelletizing with 5 wt% Na2CO3, preheating at 1050 °C for 10 min, roasting at 1250 °C for 10 min, and water leaching at 120 °C for 120 min with a liquid:solid ratio of 5:1 (mL/g) in the bench-scale experiment. XPS and SEM-EDS results showed that part of trivalent vanadium was not oxidized completely during the sodium salt roasting and still occurred in the iron mineral phase; consequently, this part of vanadium was retained in the leached iron ore. The sodium salt roasting parameters are consistent with those of the iron ore oxidized pellets produced by grate-kiln or straight-grate methods; thus, the production efficiency of sodium salt roasting for vanadium extraction can be improved significantly. Pilot-scale experiment was further performed to verify the feasibility of the recommended method in a traveling grate, a better vanadium extraction ratio of 79.1% was achieved.
format	article
author	Shuhui Zhang Guanghui Li Rendong Xiao Jun Luo Lingyun Yi Mingjun Rao
author_facet	Shuhui Zhang Guanghui Li Rendong Xiao Jun Luo Lingyun Yi Mingjun Rao
author_sort	Shuhui Zhang
title	Extraction of vanadium from low-vanadium grade magnetite concentrate pellets with sodium salt
title_short	Extraction of vanadium from low-vanadium grade magnetite concentrate pellets with sodium salt
title_full	Extraction of vanadium from low-vanadium grade magnetite concentrate pellets with sodium salt
title_fullStr	Extraction of vanadium from low-vanadium grade magnetite concentrate pellets with sodium salt
title_full_unstemmed	Extraction of vanadium from low-vanadium grade magnetite concentrate pellets with sodium salt
title_sort	extraction of vanadium from low-vanadium grade magnetite concentrate pellets with sodium salt
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/1f2393523f914a4a81c90e250911722f
work_keys_str_mv	AT shuhuizhang extractionofvanadiumfromlowvanadiumgrademagnetiteconcentratepelletswithsodiumsalt AT guanghuili extractionofvanadiumfromlowvanadiumgrademagnetiteconcentratepelletswithsodiumsalt AT rendongxiao extractionofvanadiumfromlowvanadiumgrademagnetiteconcentratepelletswithsodiumsalt AT junluo extractionofvanadiumfromlowvanadiumgrademagnetiteconcentratepelletswithsodiumsalt AT lingyunyi extractionofvanadiumfromlowvanadiumgrademagnetiteconcentratepelletswithsodiumsalt AT mingjunrao extractionofvanadiumfromlowvanadiumgrademagnetiteconcentratepelletswithsodiumsalt
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Extraction of vanadium from low-vanadium grade magnetite concentrate pellets with sodium salt

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