Enhanced reduction of CaF2and NaF on vanadium titano-magnetite carbon composite pellets

Xiangdong Xing; Jianliang Zhang; Zhe Wang; Shan Ren; Mingming Cao; Zhengjian Liu; Mingchun Lu

Enhanced reduction of CaF₂and NaF on vanadium titano-magnetite carbon composite pellets

Xiangdong Xing
, Jianliang Zhang
, Zhe Wang
, Shan Ren
, Mingming Cao
, Zhengjian Liu
, Mingchun Lu

University of Science and Technology Beijing
Tianjin Iron and Steel Association

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

The effect of reduction temperature on the vanadium titano-magnetite carbon, composite pellets was investigated by X-ray diffraction (XRD) and scanning electron microscopy (SEM), and the discussion has put emphasis upon the enhanced reduction mechanism of additives containing CaF₂ and NaF in this paper. The results showed that the reduction temperature of 1350°C was needed for the generation, mergence and growing up of metallic iron as well as monomer dissociation between metallic iron particles and slag phase in the vanadium titano-magnetite metallization pellets. The iron compound was completely reduced into metal iron, and Fe₂TiO₄ was mainly transformed into metal iron, (Fe,Mg)Ti₂O₅ and FeTiO ₃ at 1350°C. The maximum metallization ratio was only 88.5% at 1350□ for 30 min without any additive. However, with the addition of 3.0% CaF₂ or NaF, the metallization degree of pellets could reach up to 94.8% and 92.5%, respectively.

Original language	English
Title of host publication	4th International Symposium on High-Temperature Metallurgical Processing - Held During the TMS 2013 Annual Meeting and Exhibition
Pages	571-577
Number of pages	7
State	Published - 2013
Externally published	Yes
Event	4th International Symposium on High-Temperature Metallurgical Processing - TMS 2013 Annual Meeting and Exhibition - San Antonio, TX, United States Duration: 3 Mar 2013 → 7 Mar 2013

Publication series

Name	TMS Annual Meeting

Conference

Conference	4th International Symposium on High-Temperature Metallurgical Processing - TMS 2013 Annual Meeting and Exhibition
Country/Territory	United States
City	San Antonio, TX
Period	3/03/13 → 7/03/13

Keywords

Additives
Carbon composite pellets
Metallization degree
Vanadium titano-magnetite concentrate

Cite this

@inproceedings{76d574c7cc3a4066a3b38d0ab5314353,

title = "Enhanced reduction of CaF2and NaF on vanadium titano-magnetite carbon composite pellets",

abstract = "The effect of reduction temperature on the vanadium titano-magnetite carbon, composite pellets was investigated by X-ray diffraction (XRD) and scanning electron microscopy (SEM), and the discussion has put emphasis upon the enhanced reduction mechanism of additives containing CaF2 and NaF in this paper. The results showed that the reduction temperature of 1350°C was needed for the generation, mergence and growing up of metallic iron as well as monomer dissociation between metallic iron particles and slag phase in the vanadium titano-magnetite metallization pellets. The iron compound was completely reduced into metal iron, and Fe2TiO4 was mainly transformed into metal iron, (Fe,Mg)Ti2O5 and FeTiO 3 at 1350°C. The maximum metallization ratio was only 88.5\% at 1350□ for 30 min without any additive. However, with the addition of 3.0\% CaF2 or NaF, the metallization degree of pellets could reach up to 94.8\% and 92.5\%, respectively.",

keywords = "Additives, Carbon composite pellets, Metallization degree, Vanadium titano-magnetite concentrate",

author = "Xiangdong Xing and Jianliang Zhang and Zhe Wang and Shan Ren and Mingming Cao and Zhengjian Liu and Mingchun Lu",

year = "2013",

language = "英语",

isbn = "9781118605691",

series = "TMS Annual Meeting",

pages = "571--577",

booktitle = "4th International Symposium on High-Temperature Metallurgical Processing - Held During the TMS 2013 Annual Meeting and Exhibition",

note = "4th International Symposium on High-Temperature Metallurgical Processing - TMS 2013 Annual Meeting and Exhibition ; Conference date: 03-03-2013 Through 07-03-2013",

}

Xing, X, Zhang, J, Wang, Z, Ren, S, Cao, M, Liu, Z & Lu, M 2013, Enhanced reduction of CaF₂and NaF on vanadium titano-magnetite carbon composite pellets. in 4th International Symposium on High-Temperature Metallurgical Processing - Held During the TMS 2013 Annual Meeting and Exhibition. TMS Annual Meeting, pp. 571-577, 4th International Symposium on High-Temperature Metallurgical Processing - TMS 2013 Annual Meeting and Exhibition, San Antonio, TX, United States, 3/03/13.

Enhanced reduction of CaF₂and NaF on vanadium titano-magnetite carbon composite pellets. / Xing, Xiangdong; Zhang, Jianliang; Wang, Zhe et al.
4th International Symposium on High-Temperature Metallurgical Processing - Held During the TMS 2013 Annual Meeting and Exhibition. 2013. p. 571-577 (TMS Annual Meeting).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Enhanced reduction of CaF2and NaF on vanadium titano-magnetite carbon composite pellets

AU - Xing, Xiangdong

AU - Zhang, Jianliang

AU - Wang, Zhe

AU - Ren, Shan

AU - Cao, Mingming

AU - Liu, Zhengjian

AU - Lu, Mingchun

PY - 2013

Y1 - 2013

N2 - The effect of reduction temperature on the vanadium titano-magnetite carbon, composite pellets was investigated by X-ray diffraction (XRD) and scanning electron microscopy (SEM), and the discussion has put emphasis upon the enhanced reduction mechanism of additives containing CaF2 and NaF in this paper. The results showed that the reduction temperature of 1350°C was needed for the generation, mergence and growing up of metallic iron as well as monomer dissociation between metallic iron particles and slag phase in the vanadium titano-magnetite metallization pellets. The iron compound was completely reduced into metal iron, and Fe2TiO4 was mainly transformed into metal iron, (Fe,Mg)Ti2O5 and FeTiO 3 at 1350°C. The maximum metallization ratio was only 88.5% at 1350□ for 30 min without any additive. However, with the addition of 3.0% CaF2 or NaF, the metallization degree of pellets could reach up to 94.8% and 92.5%, respectively.

AB - The effect of reduction temperature on the vanadium titano-magnetite carbon, composite pellets was investigated by X-ray diffraction (XRD) and scanning electron microscopy (SEM), and the discussion has put emphasis upon the enhanced reduction mechanism of additives containing CaF2 and NaF in this paper. The results showed that the reduction temperature of 1350°C was needed for the generation, mergence and growing up of metallic iron as well as monomer dissociation between metallic iron particles and slag phase in the vanadium titano-magnetite metallization pellets. The iron compound was completely reduced into metal iron, and Fe2TiO4 was mainly transformed into metal iron, (Fe,Mg)Ti2O5 and FeTiO 3 at 1350°C. The maximum metallization ratio was only 88.5% at 1350□ for 30 min without any additive. However, with the addition of 3.0% CaF2 or NaF, the metallization degree of pellets could reach up to 94.8% and 92.5%, respectively.

KW - Additives

KW - Carbon composite pellets

KW - Metallization degree

KW - Vanadium titano-magnetite concentrate

UR - https://www.scopus.com/pages/publications/84876489969

M3 - 会议稿件

AN - SCOPUS:84876489969

SN - 9781118605691

T3 - TMS Annual Meeting

SP - 571

EP - 577

BT - 4th International Symposium on High-Temperature Metallurgical Processing - Held During the TMS 2013 Annual Meeting and Exhibition

T2 - 4th International Symposium on High-Temperature Metallurgical Processing - TMS 2013 Annual Meeting and Exhibition

Y2 - 3 March 2013 through 7 March 2013

ER -