Improving Zinc Recovery from Steelmaking Dust by Switching from Conventional Heating to Microwave Heating

被引：14

作者：

Omran, Mamdouh ^{[1
,2
]}

Fabritius, Timo ^{[1
]}

Yu, Yaowei ^{[2
]}

Heikkinen, Eetu-Pekka ^{[1
]}

Chen, Guo ^{[3
]}

Kacar, Yilmaz ^{[4
]}

机构：

[1] Univ Oulu, Fac Technol, Proc Met Res Grp, Oulu, Finland

[2] Shanghai Univ, State Key Lab Adv Special Steel, Sch Mat Sci & Engn, Shanghai, Peoples R China

[3] Yunnan Minzu Univ, Kunming Key Lab Energy Mat Chem, Kunming, Yunnan, Peoples R China

[4] Carnegie Mellon Univ, Mat Sci & Engn Dept, Pittsburgh, PA 15213 USA

来源：

JOURNAL OF SUSTAINABLE METALLURGY | 2021年 / 7卷 / 01期

关键词：

Microwave heating; Zinc recovery; Electric arc furnace (EAF) dust; Chromium converter (CRC) dust; BLAST-FURNACE SLUDGE; REMOVAL; TEMPERATURE;

D O I：

10.1007/s40831-020-00319-x

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Recently, microwave energy has attracted increasing interest for accelerating thermal reactions. This study investigated the impact of microwave heating on the zinc recovery rate from electric arc furnace (EAF) and chromium converter (CRC) dusts. The results indicated that microwave heating required a lower temperature to recover zinc from EAF and CRC dusts compared with that in conventional thermal heating. For CRC dust, zinc recovery rates of 37.84% and 97.43% were obtained with conventional and microwave heating, respectively, at 850 degrees C. For EAF dust, zinc recovery rates of 79.88% and 98.20% were obtained with conventional and microwave heating, respectively, at 850 degrees C. The improved zinc recovery in this study was concluded to results from the rapidity of microwave heating and the interactions between the electromagnetic microwave field and the molecules of heated materials.

引用

页码：15 / 26

页数：12

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