Investigation on removal of Nb from Nb-bearing hot metal with CO<sub>2</sub>

Investigation on removal of Nb from Nb-bearing hot metal with CO<sub>2</sub>

This paper focuses on removal niobium from Nb-bearing hot metal by bottom blown-CO<sub>2</sub> gas at flow rate of 1,0×10<sup>3</sup> Nm<sup>3</sup>/h, 1,5×10<sup>-3</sup> Nm<sup>3</sup>/h at 1350 °C and 1 450 °C in a medium induction furn...

Full description

Bibliographic Details
Main Authors: Z. Y. Xu, J. N. Huang, B. W. Li, Z. W. Zhao
Format: Article
Language:English
Published: Croatian Metallurgical Society 2018-01-01
Series:Metalurgija
Subjects:
hot metal
removal of Nb
bottom-CO<sub>2</sub>
time
temperature
Online Access:http://hrcak.srce.hr/file/296941
id doaj-aba4668dec064818a604e3b4e9fcd9de
record_format Article
spelling doaj-aba4668dec064818a604e3b4e9fcd9de2020-11-24T23:24:37ZengCroatian Metallurgical SocietyMetalurgija0543-58461334-25762018-01-01574257260Investigation on removal of Nb from Nb-bearing hot metal with CO<sub>2</sub>Z. Y. Xu0J. N. Huang1B. W. Li2Z. W. Zhao3School of Materials Science and Engineering, Inner Mongolia University of Technology, ChinaInner Mongolia University of Science and Technology, ChinaInner Mongolia University of Science and Technology, ChinaInner Mongolia University of Science and Technology, ChinaThis paper focuses on removal niobium from Nb-bearing hot metal by bottom blown-CO<sub>2</sub> gas at flow rate of 1,0×10<sup>3</sup> Nm<sup>3</sup>/h, 1,5×10<sup>-3</sup> Nm<sup>3</sup>/h at 1350 °C and 1 450 °C in a medium induction furnace. The results show that Nb and P are oxidized and the ratio of Nb to P in Nb-bearing slag at blowing termination reaches to 46,66 at 1350 °C and CO<sub>2</sub> flow rate of 1,5m<sup>3</sup>/h, which is more than that in the other condition; it improves to remove more Nb from hot metal with bottom-blown CO<sub>2</sub> at 1 350 °C than at 1450 °C; Nb starts to oxidize by CO<sub>2</sub> to form slag when Si content in molten iron decreases to low 0,1 wt. %.http://hrcak.srce.hr/file/296941hot metalremoval of Nbbottom-CO<sub>2</sub>timetemperature
collection DOAJ
language English
format Article
sources DOAJ
author Z. Y. Xu
J. N. Huang
B. W. Li
Z. W. Zhao
spellingShingle Z. Y. Xu
J. N. Huang
B. W. Li
Z. W. Zhao
Investigation on removal of Nb from Nb-bearing hot metal with CO<sub>2</sub>
Metalurgija
hot metal
removal of Nb
bottom-CO<sub>2</sub>
time
temperature
author_facet Z. Y. Xu
J. N. Huang
B. W. Li
Z. W. Zhao
author_sort Z. Y. Xu
title Investigation on removal of Nb from Nb-bearing hot metal with CO<sub>2</sub>
title_short Investigation on removal of Nb from Nb-bearing hot metal with CO<sub>2</sub>
title_full Investigation on removal of Nb from Nb-bearing hot metal with CO<sub>2</sub>
title_fullStr Investigation on removal of Nb from Nb-bearing hot metal with CO<sub>2</sub>
title_full_unstemmed Investigation on removal of Nb from Nb-bearing hot metal with CO<sub>2</sub>
title_sort investigation on removal of nb from nb-bearing hot metal with co<sub>2</sub>
publisher Croatian Metallurgical Society
series Metalurgija
issn 0543-5846
1334-2576
publishDate 2018-01-01
description This paper focuses on removal niobium from Nb-bearing hot metal by bottom blown-CO<sub>2</sub> gas at flow rate of 1,0×10<sup>3</sup> Nm<sup>3</sup>/h, 1,5×10<sup>-3</sup> Nm<sup>3</sup>/h at 1350 °C and 1 450 °C in a medium induction furnace. The results show that Nb and P are oxidized and the ratio of Nb to P in Nb-bearing slag at blowing termination reaches to 46,66 at 1350 °C and CO<sub>2</sub> flow rate of 1,5m<sup>3</sup>/h, which is more than that in the other condition; it improves to remove more Nb from hot metal with bottom-blown CO<sub>2</sub> at 1 350 °C than at 1450 °C; Nb starts to oxidize by CO<sub>2</sub> to form slag when Si content in molten iron decreases to low 0,1 wt. %.
topic hot metal
removal of Nb
bottom-CO<sub>2</sub>
time
temperature
url http://hrcak.srce.hr/file/296941
work_keys_str_mv AT zyxu investigationonremovalofnbfromnbbearinghotmetalwithcosub2sub
AT jnhuang investigationonremovalofnbfromnbbearinghotmetalwithcosub2sub
AT bwli investigationonremovalofnbfromnbbearinghotmetalwithcosub2sub
AT zwzhao investigationonremovalofnbfromnbbearinghotmetalwithcosub2sub
_version_ 1725559808950534144

Similar Items