2007
DOI: 10.1016/j.electacta.2007.04.112
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Current efficiency studies of the zinc electrowinning process on aluminum rotating cylinder electrode (RCE) in sulfuric acid medium: Influence of different additives

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Cited by 49 publications
(13 citation statements)
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“…This peak is a mixture of A1 and A2 peaks, which suggests the zinc deposition over the platinum electrode for the Fe/Zn mixture. The porosity observed by SEM in the majority of the deposit obtained in the conditions presented in curve c), obtained after 2h electrolysis at -1.5V, indicates that a large amount of hydrogen gas is formed as predicted by the cyclic voltammograms experiments [13]. On the other hand, the composition of this sample reveals a zinc percentage of 99%.…”
mentioning
confidence: 94%
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“…This peak is a mixture of A1 and A2 peaks, which suggests the zinc deposition over the platinum electrode for the Fe/Zn mixture. The porosity observed by SEM in the majority of the deposit obtained in the conditions presented in curve c), obtained after 2h electrolysis at -1.5V, indicates that a large amount of hydrogen gas is formed as predicted by the cyclic voltammograms experiments [13]. On the other hand, the composition of this sample reveals a zinc percentage of 99%.…”
mentioning
confidence: 94%
“…On the other hand, the electrolytic recovery of zinc is one of the oldest industrial processes, whose importance lies in the great worldwide demand for this metal that currently reaches an overall production of 9 million tonnes per year [5]. In fact, 80% of world zinc production is obtained by electrowinning [4].…”
Section: Introductionmentioning
confidence: 99%
“…Recéndiz et al, (15) have studied the influence of different additives [CTABr, SLS, and AG] on the current efficiency of the zinc EW process on aluminium rotating cylinder electrodes (RCE) in sulfuric acid medium. CTABr favored zinc reduction and inhibited proton reduction, whereas SLS catalyzed proton reduction on aluminium substrates leading to deposit porosity.…”
Section: Introductionmentioning
confidence: 99%
“…In addition, the decrease of natural reserves of non-ferrous metals and the requirement of environmental protection make zinc electrowinning from spent pickling solutions an interesting alternative [4,5]. Moreover, the electrolytic recovery of zinc present in the spent pickling baths is a suitable technique because zinc electrowinning has been practiced for many years [6]. In fact, 80% of world zinc production is obtained by electrowinning [1].…”
Section: -Introductionmentioning
confidence: 99%