THE EFFECTS OF MICROWAVE-ASSISTED LEACHING ON THE TREATMENT OF ELECTRIC ARC FURNACE DUSTS (EAFD)

被引：16

作者：

Laubertova, M. ^{[1
]}

Havlik, T. ^{[1
]}

Parilak, L. ^{[2
]}

Derin, B. ^{[3
]}

Trpcevska, J. ^{[1
]}

机构：

[1] Tech Univ Kosice, Inst Recycling Technol, Fac Mat Met & RECYCL & Recycling, Letna 9, Kosice 04200, Slovakia

[2] Res & Dev Ctr Zeleziarne Podbrezova Sro, Kolkaren 35, Podbrezova 97681, Slovakia

[3] Istanbul Tech Univ, Met & Mat Eng Dept, TR-34469 Istanbul, Turkey

来源：

ARCHIVES OF METALLURGY AND MATERIALS | 2020年 / 65卷 / 01期

关键词：

microwave energy; leaching; industrial waste; EAF dust; DIELECTRIC CHARACTERIZATION; ZINC RECOVERY; IRON;

D O I：

10.24425/amm.2020.131733

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

In this study, laboratory-scale experiments were carried out to investigate the effects of microwave-assisted alkaline leaching on the treatment of electric arc furnace dusts to recover zinc and lead. Microwave treatment is a new innovative technology in waste treatment and now is an attractive advanced inter-disciplinary field and also environmental friendly. The highest zinc extraction, 50.3% in 60 minutes using 5 M NaOH at 750 W and L:S ratio 20, and lead extraction up to 92.84% was achieved in these same conditions but in 30 minutes. Compared with conventional leaching, the top extraction rate using MW-assisted leaching was higher by 16% (Zn) and 26% (Pb). Zinc presents in the flue dust in the form of franklinite (ZnFe2O4), its leaching in sodium hydroxide does not occur under the examined conditions, because it is enclosed in a matrix of iron.

引用

页码：321 / 328

页数：8

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