Xuekui Niu, Minting Li
The harmless treatment of historical lead smelting slag (LSS) is of significance to ecological and environmental protection, but it is still challenging in terms of the economic feasibility of alone processing due to the low content of valuable metals. Here, we performed an industrialized test with a co-treatment of LSS and zinc oxide ore in a rotary kiln to evaluate the economic feasibility and solidification effect of harmful elements. The results revealed that more than 70% of Zn and Pb were recovered from LSS in the form of dust, while the nonvolatile part of Pb, Zn, and Cd were solidified in gangue as complex silicate phases. The nonvolatile part of As came into being Fe-As intermetallic compound which was encapsulated by gangue particles or was solidified in silicate phases. The entirely enclosed structure of water-quenched slag plays an important role in the stability of slag. The TCLP and SNAL leaching tests demonstrated the high stability of water-quenched slag.
@article{e3accece-b843-4550-b7da-b4fbc727b8d0,
title={Historical Lead Smelting Slag Harmlessness and Valuable Metals Recovery: A Co-Treatment of Lead Slag and Zinc-Bearing Material in Rotary Kiln},
author={Xuekui Niu and Minting Li},
year={2022},
language={English}
}TY - JOUR TI - Historical Lead Smelting Slag Harmlessness and Valuable Metals Recovery: A Co-Treatment of Lead Slag and Zinc-Bearing Material in Rotary Kiln AU - Xuekui Niu AU - Minting Li PY - 2022 LA - English ER -
Hui Ge, Zhigang Pan
The jarosite residue is a harmful byproduct of the zinc hydrometallurgical process and has been classified as hazardous waste due to its high content
Pavel Grudinsky, Denis Pankratov
Zinc plant residue (ZPR) is a secondary material generated during hydrometallurgical zinc production that contains considerable contents of valuable e
Henrikas Cesiulis, Natalia Tsyntsaru
The amount of waste electrical and electronic equipment (WEEE) has been intensely increasing over the recent decades. In this view, the efficient reco
Santhana Krishnan, Nor Syahidah Zulkapli
Fast industrialization has increased the demand for heavy metals, while high-grade ore natural reserves are diminishing. Therefore, alternative source
Marinela Ivanova Panayotova, Vladko Panayotov
This special issue focuses on the recovery of valuable metals through advanced methods in mineral processing and hydrometallurgy. The objective is to