High-temperature chlorination of different cobalt oxide phases using calcium chloride

被引：0
|
作者：
Han, Peiwei [1 ,2 ,3 ]
Zhang, Lunliang [1 ,2 ,3 ]
Yan, Jingmin [1 ,2 ,3 ]
Ye, Shufeng [1 ,2 ,3 ]
机构：
[1] Chinese Acad Sci, Inst Proc Engn, State Key Lab Mesosci & Engn, Beijing 100190, Peoples R China
[2] Chinese Acad Sci, Innovat Acad Green Manufacture, Beijing 100190, Peoples R China
[3] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
来源：
CANADIAN METALLURGICAL QUARTERLY | 2025年 / 64卷 / 01期
基金：
中国国家自然科学基金;
关键词：
High-temperature chlorination; cobalt oxide phase; calcium chloride; volatilisation percentage; phase evolution; RICH PYRITE CINDER; VOLATILIZATION; RECOVERY; REMOVAL; METALS; ZN;
D O I：
10.1080/00084433.2024.2357886
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
High-temperature chlorination method has been proposed for the recovery of value metals from industrial solid wastes. However, there are only a few reports about the effect of different occurrence states of value metals. The aim of this paper is to investigate the high-temperature chlorination of different cobalt (Co) phases using calcium chloride and phase evolution of Co oxide phases during high-temperature chlorination. Complex oxides of CoFe2O4, Co2SiO4, and CoAl2O4 were synthesised first. Concentrations of samples were measured by inductively coupled plasma-optical emission spectrometer (ICP-OES) after acid dissolution. Phases of calcines roasted at different times were detected by X-ray diffraction. The results showed that Co volatilisation percentages of different Co oxide phases at 1273 and 1373 K could be classified as CoO > Co2SiO4 > CoFe2O4 > CoAl2O4. Co volatilisation percentage decreased with the introduction of Al2O3 due to the generation of CoAl2O4 from the reaction between CoO and Al2O3. The phase evolution of different Co oxide phases during the high-temperature chlorination was described in detail.
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页码：317 / 325
页数：9
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