Mechanism of cobalt removal from zinc sulfate solutions in the presence of cadmium

Mechanism of cobalt removal from zinc sulfate solutions in the presence of cadmium

The effect of cadmium and copper, temperature and reaction time on the removal of cobalt from zinc sulfate solutions using zinc dust was experimentally studied. The results show that the rate and extent of cobalt removal are enhanced when cementation takes place in the presence of less than 400 mg/L...

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Veröffentlicht in:Hydrometallurgy 2006, Vol.81 (1), p.62-66
Hauptverfasser: Yang, Dajin, Xie, Gang, Zeng, Guisheng, Wang, Jikun, Li, Rong-xing
Format: Artikel
Sprache:eng
Schlagworte:
Applied sciences
Cadmium ion
Cementation
Cobalt removal
Electron probe micro-analysis
Exact sciences and technology
Metals. Metallurgy
Production of metals
Zinc dust
Zinc sulfate solution
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container_issue 1
container_start_page 62
container_title Hydrometallurgy
container_volume 81
creator Yang, Dajin
Xie, Gang
Zeng, Guisheng
Wang, Jikun
Li, Rong-xing
description The effect of cadmium and copper, temperature and reaction time on the removal of cobalt from zinc sulfate solutions using zinc dust was experimentally studied. The results show that the rate and extent of cobalt removal are enhanced when cementation takes place in the presence of less than 400 mg/L of cadmium. Cementation residues were analyzed using electron probe micro-analysis (EPMA) to investigate the distribution of phases in the cementation products and the mechanism of cobalt removal. It was found that formation of Zn–Co and Zn–Cd alloys on the zinc dust particles can enhance cobalt removal whereas the presence of Zn–Cu and Cu–Cd alloys can inhibit cobalt removal.
doi_str_mv 10.1016/j.hydromet.2005.08.008
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source ScienceDirect Journals (5 years ago - present)
subjects Applied sciences
Cadmium ion
Cementation
Cobalt removal
Electron probe micro-analysis
Exact sciences and technology
Metals. Metallurgy
Production of metals
Zinc dust
Zinc sulfate solution
title Mechanism of cobalt removal from zinc sulfate solutions in the presence of cadmium
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