Basic Oxygen Steelmaking Slag: Formation, Reaction, and Energy and Material Recovery

Zushu Li; Juncheng Li; Stephen Spooner; Sridhar Seetharaman

doi:10.1002/srin.202100167

Basic Oxygen Steelmaking Slag: Formation, Reaction, and Energy and Material Recovery

Zushu Li, Juncheng Li, Stephen Spooner, Sridhar Seetharaman

Research output: Contribution to journal › Review article › peer-review

8 Citations (Scopus)

23 Downloads (Pure)

Abstract

Basic oxygen steelmaking (BOS) slag, a product of hot metal element (e.g., Si, Mn, Fe, P) oxidation and flux (e.g. lime, dolomite) dissolution, plays a critical role in the production of high-quality crude steel, although its behavior inside the BOS vessel (formation and reaction with metal droplets and gas) is still not clear and its recycling has always been challenging. Herein, examples of BOS-slag-related research conducted by the present authors are introduced, in addition to a critical review of relevant research reported in the literature. This includes four important topics: 1) slag formation, i.e., dissolution of lime in the BOS slag; 2) in situ observation of high-temperature behavior of BOS slags; 3) transient phenomena in BOS slags due to metal droplet–slag–gas reactions; and 4) energy and material recovery from molten BOS slags. This article aims to provide state-of-the-art understanding and new research ideas on these research topics. An emphasis is placed on methods that seek to in situ probe the evolution of the slag and to document its physical and chemical changes.

Original language	English
Article number	2100167
Number of pages	16
Journal	Steel Research International
Volume	93
Issue number	3
Early online date	10 Aug 2021
DOIs	https://doi.org/10.1002/srin.202100167
Publication status	Published - Mar 2022
Externally published	Yes

Bibliographical note

This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

Funder

Z.L. would like to appreciate the financial support from Engineering and Physical Sciences Research Council (EPSRC) under the grant number EP/N011368/1 (EPSRC Fellowship). The authors are thankful for the financial support from EPSRC under the grant no. EP/M507829/1, from Innovate UK under the project no. 102170, and from Tata Steel Europe.

Keywords

basic oxygen steelmaking slag
energy recovery
gas–slag–metal reaction
high-temperature behavior
lime dissolution
material recovery
transient phenomena

Access to Document

10.1002/srin.202100167Licence: CC BY

PublishedFinal published version, 6.54 MBLicence: CC BY

Cite this

@article{0158196453ab4431b3063df86b8d1c03,

title = "Basic Oxygen Steelmaking Slag: Formation, Reaction, and Energy and Material Recovery",

abstract = "Basic oxygen steelmaking (BOS) slag, a product of hot metal element (e.g., Si, Mn, Fe, P) oxidation and flux (e.g. lime, dolomite) dissolution, plays a critical role in the production of high-quality crude steel, although its behavior inside the BOS vessel (formation and reaction with metal droplets and gas) is still not clear and its recycling has always been challenging. Herein, examples of BOS-slag-related research conducted by the present authors are introduced, in addition to a critical review of relevant research reported in the literature. This includes four important topics: 1) slag formation, i.e., dissolution of lime in the BOS slag; 2) in situ observation of high-temperature behavior of BOS slags; 3) transient phenomena in BOS slags due to metal droplet–slag–gas reactions; and 4) energy and material recovery from molten BOS slags. This article aims to provide state-of-the-art understanding and new research ideas on these research topics. An emphasis is placed on methods that seek to in situ probe the evolution of the slag and to document its physical and chemical changes.",

keywords = "basic oxygen steelmaking slag, energy recovery, gas–slag–metal reaction, high-temperature behavior, lime dissolution, material recovery, transient phenomena",

author = "Zushu Li and Juncheng Li and Stephen Spooner and Sridhar Seetharaman",

note = "This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.",

year = "2022",

month = mar,

doi = "10.1002/srin.202100167",

language = "English",

volume = "93",

journal = "Steel Research International",

issn = "1869-344X",

publisher = "Wiley",

number = "3",

}

TY - JOUR

T1 - Basic Oxygen Steelmaking Slag

T2 - Formation, Reaction, and Energy and Material Recovery

AU - Li, Zushu

AU - Li, Juncheng

AU - Spooner, Stephen

AU - Seetharaman, Sridhar

N1 - This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

PY - 2022/3

Y1 - 2022/3

N2 - Basic oxygen steelmaking (BOS) slag, a product of hot metal element (e.g., Si, Mn, Fe, P) oxidation and flux (e.g. lime, dolomite) dissolution, plays a critical role in the production of high-quality crude steel, although its behavior inside the BOS vessel (formation and reaction with metal droplets and gas) is still not clear and its recycling has always been challenging. Herein, examples of BOS-slag-related research conducted by the present authors are introduced, in addition to a critical review of relevant research reported in the literature. This includes four important topics: 1) slag formation, i.e., dissolution of lime in the BOS slag; 2) in situ observation of high-temperature behavior of BOS slags; 3) transient phenomena in BOS slags due to metal droplet–slag–gas reactions; and 4) energy and material recovery from molten BOS slags. This article aims to provide state-of-the-art understanding and new research ideas on these research topics. An emphasis is placed on methods that seek to in situ probe the evolution of the slag and to document its physical and chemical changes.

AB - Basic oxygen steelmaking (BOS) slag, a product of hot metal element (e.g., Si, Mn, Fe, P) oxidation and flux (e.g. lime, dolomite) dissolution, plays a critical role in the production of high-quality crude steel, although its behavior inside the BOS vessel (formation and reaction with metal droplets and gas) is still not clear and its recycling has always been challenging. Herein, examples of BOS-slag-related research conducted by the present authors are introduced, in addition to a critical review of relevant research reported in the literature. This includes four important topics: 1) slag formation, i.e., dissolution of lime in the BOS slag; 2) in situ observation of high-temperature behavior of BOS slags; 3) transient phenomena in BOS slags due to metal droplet–slag–gas reactions; and 4) energy and material recovery from molten BOS slags. This article aims to provide state-of-the-art understanding and new research ideas on these research topics. An emphasis is placed on methods that seek to in situ probe the evolution of the slag and to document its physical and chemical changes.

KW - basic oxygen steelmaking slag

KW - energy recovery

KW - gas–slag–metal reaction

KW - high-temperature behavior

KW - lime dissolution

KW - material recovery

KW - transient phenomena

UR - http://www.scopus.com/inward/record.url?scp=85113378412&partnerID=8YFLogxK

U2 - 10.1002/srin.202100167

DO - 10.1002/srin.202100167

M3 - Review article

SN - 1869-344X

VL - 93

JO - Steel Research International

JF - Steel Research International

IS - 3

M1 - 2100167

ER -

Basic Oxygen Steelmaking Slag: Formation, Reaction, and Energy and Material Recovery

Abstract

Bibliographical note

Funder

Keywords

Access to Document

Other files and links

Fingerprint

Cite this