The Behavior of Zinc, Copper, and Indium During the Precipitation of Lead Jarosite

IF 2.1 4区 材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY
JOM Pub Date : 2024-11-14 DOI:10.1007/s11837-024-06989-2
Pu Sun, Jibo Wang, Xingbin Li, Chang Wei, Zhigan Deng, Minting Li
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引用次数: 0

Abstract

The behavior of zinc (Zn), copper (Cu), and indium (In) during the precipitation of lead jarosite (Pb-J) was investigated. At a temperature of 150°C and sulfuric acid concentration of 20 g/L, increasing concentrations of Zn, Cu, and In in the solution facilitated the formation of lead jarosite in the solid product. However, the incorporation of Zn remained consistently low, with less than 3% Zn present in precipitates from solutions containing ~ 150 g/L Zn. Mass balance calculations indicated that less than 1.2% of Zn precipitated into the solid products under all experimental conditions. The precipitation of Cu decreased with increasing concentration, while ~ 25% of In precipitated and remained stable across different concentrations. The order of substitution into Pb-J was approximately: In > Cu > Zn. The incorporation of Zn, Cu, and In influenced the morphology of the solid products, with Cu and In exhibiting similar morphologies. Additionally, PbSO4 was encapsulated within the jarosite structure, resulting in the distribution of Zn, Cu, and In between PbSO4 and Pb-J phases, predominantly within Pb-J.

锌、铜和铟在铅黄铁矾沉淀过程中的行为
研究了锌(Zn)、铜(Cu)和铟(In)在铅黄钾铁矾(Pb-J)沉淀过程中的行为。当温度为150℃,硫酸浓度为20 g/L时,溶液中Zn、Cu和In浓度的增加有利于固体产物中铅黄钾铁矾的形成。然而,Zn的掺入一直很低,在含有~ 150 g/L Zn的溶液中,析出物中Zn的含量低于3%。质量平衡计算表明,在所有实验条件下,固体产物中Zn的析出量均小于1.2%。Cu的析出量随浓度的增加而减少,而In的析出量在不同浓度下均保持稳定。取代成Pb-J的顺序大致为:In >; Cu > Zn。Zn、Cu和In的掺入影响了固体产物的形貌,其中Cu和In表现出相似的形貌。此外,PbSO4被包裹在黄钾铁矾结构中,导致Zn、Cu和in分布在PbSO4和Pb-J相中,主要分布在Pb-J相中。
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来源期刊
JOM
JOM 工程技术-材料科学:综合
CiteScore
4.50
自引率
3.80%
发文量
540
审稿时长
2.8 months
期刊介绍: JOM is a technical journal devoted to exploring the many aspects of materials science and engineering. JOM reports scholarly work that explores the state-of-the-art processing, fabrication, design, and application of metals, ceramics, plastics, composites, and other materials. In pursuing this goal, JOM strives to balance the interests of the laboratory and the marketplace by reporting academic, industrial, and government-sponsored work from around the world.
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