首页|Disposal of zinc extraction residues via iron ore sintering process:an innovative resource utilization

Disposal of zinc extraction residues via iron ore sintering process:an innovative resource utilization

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Zinc extraction residue,a solid waste generated from the treatment of zinc-containing dust in rotary kilns,is commonly stockpiled in steel companies for extended periods.It poses significant disposal challenges and environmental pollution risks.So far,research on the treatment of zinc extraction residues has been slow,inadequate,and sporadic.For this gap,a novel approach was proposed to effectively treat the zinc extraction residue via the iron ore sintering process.It was feasible to add 1 wt.％of zinc extraction residues to the sintering raw materials.The more adequate mineralization reaction resulted in higher yield and tumbler indexes,despite a slight decrease in sintering speed.Although this may result in a slight decrease in sintering speed,the more complete mineralization reaction leads to improved sintering yield and tumbler index.Interestingly,the addition of zinc extraction residues reduced the CO and NOx concentrations in the sintering flue gas.Thus,the iron ore sintering process provided a viable solution for resource utilization and environmentally friendly treatment of zinc extraction residues.

Zinc extraction residueIron ore sinteringCo-processingWaste utilizationGas pollutant reduction

Chun-long Fan、Cheng-yi Ding、Tao Yang、Yun-fei Luo、Yi-fan Wang、Qian Li、Hong-ming Long

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School of Metallurgical Engineering,Anhui University of Technology,Ma'anshan 243002,Anhui,China

Zhongye Changtian International Engineering Co.,Ltd.,Changsha 410205,Hunan,China

Key Laboratory of Metallurgical Emission Reduction and Resources Recycling(Ministry of Education),Anhui University of Technology,Ma'anshan 243002,Anhui,China

National Natural Science Foundation of ChinaNatural Science Foundation of Anhui Province Youth ProjectOpen Fund of Key Laboratory of Metallurgical Emission Reduction and Resource Utilization,Ministry of Education

522043312208085QE145JKF20-03

2024

10.1007/s42243-023-01113-1

钢铁研究学报(英文版)
钢铁研究总院

钢铁研究学报(英文版)

CSTPCD
影响因子：0.584
ISSN：1006-706X
年,卷(期)：2024.31(7)