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Prediction of density and volume variation of hematite ore particles during in-flight melting and reduction. / Chen, Zhi yuan; Qu, Ying xia; Zeilstra, Christiaan; Van Der Stel, Jan; Sietsma, Jilt; Yang, Yong xiang.

In: Journal of Iron and Steel Research International, Vol. 26, No. 12, 2019, p. 1285-1294.

Research output: Contribution to journalArticleScientificpeer-review

Harvard

Chen, ZY, Qu, YX, Zeilstra, C, Van Der Stel, J, Sietsma, J & Yang, YX 2019, 'Prediction of density and volume variation of hematite ore particles during in-flight melting and reduction', Journal of Iron and Steel Research International, vol. 26, no. 12, pp. 1285-1294. https://doi.org/10.1007/s42243-019-00265-3

APA

Chen, Z. Y., Qu, Y. X., Zeilstra, C., Van Der Stel, J., Sietsma, J., & Yang, Y. X. (2019). Prediction of density and volume variation of hematite ore particles during in-flight melting and reduction. Journal of Iron and Steel Research International, 26(12), 1285-1294. https://doi.org/10.1007/s42243-019-00265-3

Vancouver

Chen ZY, Qu YX, Zeilstra C, Van Der Stel J, Sietsma J, Yang YX. Prediction of density and volume variation of hematite ore particles during in-flight melting and reduction. Journal of Iron and Steel Research International. 2019;26(12):1285-1294. https://doi.org/10.1007/s42243-019-00265-3

Author

Chen, Zhi yuan ; Qu, Ying xia ; Zeilstra, Christiaan ; Van Der Stel, Jan ; Sietsma, Jilt ; Yang, Yong xiang. / Prediction of density and volume variation of hematite ore particles during in-flight melting and reduction. In: Journal of Iron and Steel Research International. 2019 ; Vol. 26, No. 12. pp. 1285-1294.

BibTeX

@article{f3d2799673014063ba82331d609f0908,
title = "Prediction of density and volume variation of hematite ore particles during in-flight melting and reduction",
abstract = " HIsarna is a promising ironmaking technology to reduce CO 2 emission. Information of phase transformation is essential for reaction analysis of the cyclone reactor of the HIsarna process. In addition, data of density and volume of the ore particles are necessary for estimation of the residence time of the particles in the cyclone reactor. Phase transformation of iron ore particles was experimentally studied in a drop-tube furnace under simulated cyclone conditions and compared with thermodynamic calculation. During the pre-reduction process inside the reactor, the mineralogy of iron ore particles transforms sequentially from hematite to sub-oxides. The density changes of the particles during the melting and reduction can be predicted based on the phase composition and temperature. Therefore, density models in the studies were evaluated with reported experimental data of slag. As a result, a more reliable density model was developed to calculate the density of the formed slag containing mainly FeO–Fe 2 O 3 . The density and volume of the partially reduced ore particles or melt droplets were estimated based on this model. The results show that the density of the ore particles decreases by 15.1% at most along the progressive reduction process. Furthermore, the model results also indicate that heating, melting and reduction of the ore could lead to 6.63–9.37% swelling of the particles, which is mostly contributed by thermal expansion. It would result in corresponding variation in velocity of the ore particles or melt droplets during the flight inside the reactor. ",
keywords = "Hematite ore particle, HIsarna, Ironmaking process, Ore density change, Phase transformation, Smelting reduction",
author = "Chen, {Zhi yuan} and Qu, {Ying xia} and Christiaan Zeilstra and {Van Der Stel}, Jan and Jilt Sietsma and Yang, {Yong xiang}",
year = "2019",
doi = "10.1007/s42243-019-00265-3",
language = "English",
volume = "26",
pages = "1285--1294",
journal = "Journal of Iron and Steel Research International",
issn = "1006-706X",
publisher = "Ganglie Yanjiu Xuebao",
number = "12",

}

RIS

TY - JOUR

T1 - Prediction of density and volume variation of hematite ore particles during in-flight melting and reduction

AU - Chen, Zhi yuan

AU - Qu, Ying xia

AU - Zeilstra, Christiaan

AU - Van Der Stel, Jan

AU - Sietsma, Jilt

AU - Yang, Yong xiang

PY - 2019

Y1 - 2019

N2 - HIsarna is a promising ironmaking technology to reduce CO 2 emission. Information of phase transformation is essential for reaction analysis of the cyclone reactor of the HIsarna process. In addition, data of density and volume of the ore particles are necessary for estimation of the residence time of the particles in the cyclone reactor. Phase transformation of iron ore particles was experimentally studied in a drop-tube furnace under simulated cyclone conditions and compared with thermodynamic calculation. During the pre-reduction process inside the reactor, the mineralogy of iron ore particles transforms sequentially from hematite to sub-oxides. The density changes of the particles during the melting and reduction can be predicted based on the phase composition and temperature. Therefore, density models in the studies were evaluated with reported experimental data of slag. As a result, a more reliable density model was developed to calculate the density of the formed slag containing mainly FeO–Fe 2 O 3 . The density and volume of the partially reduced ore particles or melt droplets were estimated based on this model. The results show that the density of the ore particles decreases by 15.1% at most along the progressive reduction process. Furthermore, the model results also indicate that heating, melting and reduction of the ore could lead to 6.63–9.37% swelling of the particles, which is mostly contributed by thermal expansion. It would result in corresponding variation in velocity of the ore particles or melt droplets during the flight inside the reactor.

AB - HIsarna is a promising ironmaking technology to reduce CO 2 emission. Information of phase transformation is essential for reaction analysis of the cyclone reactor of the HIsarna process. In addition, data of density and volume of the ore particles are necessary for estimation of the residence time of the particles in the cyclone reactor. Phase transformation of iron ore particles was experimentally studied in a drop-tube furnace under simulated cyclone conditions and compared with thermodynamic calculation. During the pre-reduction process inside the reactor, the mineralogy of iron ore particles transforms sequentially from hematite to sub-oxides. The density changes of the particles during the melting and reduction can be predicted based on the phase composition and temperature. Therefore, density models in the studies were evaluated with reported experimental data of slag. As a result, a more reliable density model was developed to calculate the density of the formed slag containing mainly FeO–Fe 2 O 3 . The density and volume of the partially reduced ore particles or melt droplets were estimated based on this model. The results show that the density of the ore particles decreases by 15.1% at most along the progressive reduction process. Furthermore, the model results also indicate that heating, melting and reduction of the ore could lead to 6.63–9.37% swelling of the particles, which is mostly contributed by thermal expansion. It would result in corresponding variation in velocity of the ore particles or melt droplets during the flight inside the reactor.

KW - Hematite ore particle

KW - HIsarna

KW - Ironmaking process

KW - Ore density change

KW - Phase transformation

KW - Smelting reduction

UR - http://www.scopus.com/inward/record.url?scp=85064348280&partnerID=8YFLogxK

U2 - 10.1007/s42243-019-00265-3

DO - 10.1007/s42243-019-00265-3

M3 - Article

AN - SCOPUS:85064348280

VL - 26

SP - 1285

EP - 1294

JO - Journal of Iron and Steel Research International

JF - Journal of Iron and Steel Research International

SN - 1006-706X

IS - 12

ER -

ID: 53458213