The electrowinning of dilute zinc sulfate solutions in a fluidized bed electrochemical reactor
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Authors
Squillace, Richard Z
Issue Date
1985
Type
Thesis
Language
en_US
Keywords
Fluidized Bed Electrochemical Reactor , Electrowin Dilute Zinc Sulfate Solutions , Zinc , Planar Electrodes , Electrowinning , Low Acid Catholyte Solution , Recovery Of Zinc , Catholyte Conductivity , Current Efficiency , Current Density , Volumetric Reaction Rate , Planar Electrowinning Cell , Mackay Theses and Dissertations Grant Collection
Alternative Title
Abstract
A cylindrical, fluidized bed electrochemical reactor (FBER), was employed to electrowin dilute zinc sulfate solutions containing 2.5 - 15 gr/1 zinc. The planar electrodes used in the industrial electrowinning of zinc requires 50 - 65 gr/1 zinc. A low acid catholyte solution of 5 gr/1 is the maximum concentration necessary for the efficient recovery of zinc. The addition of 60 gr/1 of Na^SO^ electrolyte improved both the catholyte conductivity and current efficiency.
The optimum current efficiency and current density were obtained using a particle size of +355-500 microns, and a bed width of 1.3 cm. At a zinc concentration of 15 gr/1, the FBER could be operated at current densities and volumetric reaction rates greatly exceeding that of a conventional planar electrowinning cell.
Description
Thesis Number: 2026.
Online access for this thesis was created in part with support from the Institute of Museum and Library Services (IMLS) administered by the Nevada State Library, Archives and Public Records through the Library Services and Technology Act (LSTA). To obtain a high quality image or document please contact the DeLaMare Library at https://unr.libanswers.com/ or call: 775-784-6945.
Online access for this thesis was created in part with support from the Institute of Museum and Library Services (IMLS) administered by the Nevada State Library, Archives and Public Records through the Library Services and Technology Act (LSTA). To obtain a high quality image or document please contact the DeLaMare Library at https://unr.libanswers.com/ or call: 775-784-6945.
Citation
Publisher
University of Nevada, Reno
License
In Copyright(All Rights Reserved)