Effect of TiO2 on the Sintering Behavior of Low-Grade Vanadiferous Titanomagnetite Ore

Low-grade vanadiferous titanomagnetite ore (LVTM) is as an important mineral resource for sintering ore manufacturing. Furthermore, TiO2 has a significant effect on the sintering process of iron ore fines. The effects of TiO2 on the metallurgical properties, microstructure, and mineral composition of LVTM sinter were investigated by sintering pot tests, X-ray diffraction (XRD), scanning electron microscopy (SEM), and mineral phase microanalysis. The results were as follows: as the TiO2 content increased from 1.75% to 4.55%, the flame front speed and productivity decreased, while the reduction degradation index (RDI) and softening properties deteriorated. In addition, the tumbler index (TI) values reached a maximum at TiO2 = 1.75%. In addition, with increasing TiO2 content, an increase in the magnetite and perovskite phase, and a decrease in calcium ferrite and hematite were found with an increase in TiO2 content. Thus, the lower the TiO2 content, the better the quality of the sinter.

Medienart:

E-Artikel

Erscheinungsjahr:

2021

Erschienen:

2021

Enthalten in:

Zur Gesamtaufnahme - volume:14

Enthalten in:

Materials (Basel, Switzerland) - 14(2021), 16 vom: 05. Aug.

Sprache:

Englisch

Beteiligte Personen:

Yang, Songtao [VerfasserIn]
Tang, Weidong [VerfasserIn]
Xue, Xiangxin [VerfasserIn]

Links:

Volltext

Themen:

Journal Article
Low-grade vanadiferous titanomagnetite ore
Mineral phase
Perovskite
Sinter

Anmerkungen:

Date Revised 30.08.2021

published: Electronic

Citation Status PubMed-not-MEDLINE

doi:

10.3390/ma14164376

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM329858076