Characterization of industrially electrowon zinc: An investigation of sticky and non-sticky deposit behaviour

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Abstract

Physical, chemical, and microscopic characterization of industrially electrowon zinc was performed with a focus on elucidating a rational for the sticky and non-sticky behavior of the deposits. Preferred crystal deposition plane orientations were analyzed by XRD. The crystal orientations for the sticky samples reveal small angle growth (∼25°) to the cathode surface. In non-sticky samples the crystals are oriented at an average of ∼44° to the cathode surface. Deposit microstructures were studied by SEM and optical microscopy which revealed flat or basal zinc platelets with a number of pores for the sticky deposits whereas the non-sticky deposits were compact, sharp-edged and featured continuous grains with angular crystal plane depositions. The impurity contents in the deposits were studied by elemental (ICP) and EDX analyses. Microhardness studies of the cross-section of the deposits revealed that the sticky samples are softer than the non-sticky samples.

Original languageBritish English
Title of host publicationPb Zn 2010 - Lead-Zinc 2010 Symposium, Held in Conjunction with COM 2010
Pages827-837
Number of pages11
StatePublished - 2010
Event5th Lead-Zinc Symposium, Pb Zn 2010, Held in Conjunction with COM 2010 - Vancouver, BC, Canada
Duration: 3 Oct 20106 Oct 2010

Publication series

NamePb Zn 2010 - Lead-Zinc 2010 Symposium, Held in Conjunction with COM 2010

Conference

Conference5th Lead-Zinc Symposium, Pb Zn 2010, Held in Conjunction with COM 2010
Country/TerritoryCanada
CityVancouver, BC
Period3/10/106/10/10

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