Please use this identifier to cite or link to this item:
Title: Kinetic study of Mn and Zn dissolution from waste Zn-C batteries by shrinking core model
Authors: Aras, Ali
Kiral, Miray Fatma
Keywords: Waste Zn-C batteries
dissolution kinetics
sulfuric acid
activation energy
Zinc-Carbon Batteries
Spent Alkaline
Issue Date: 2023
Publisher: Taylor & Francis Inc
Abstract: The recovery of valuable metals from waste batteries gains more importance over time due to the decrease in natural resources and the possible harms of these to the environment. Economic benefits can also be obtained by recycling waste batteries. The recovery of valuable metals such as manganese (Mn) and zinc (Zn) in waste zinc-carbon (Zn-C) batteries has attracted the attention of many researchers. Hydrometallurgical methods are used as an effective method for the recovery of metals from waste Zn-C batteries. In this paper, kinetics of Mn and Zn dissolution from waste Zn-C batteries in sulfuric acid (H2SO4) solution was studied. The maximum Mn and Zn dissolution recoveries in 60 min leaching time were achieved using 400 rpm stirring speed, 0.25 M H2SO4 concentration, 70 degrees C temperature and -53 mu m particle size. In these conditions, Mn and Zn dissolution recoveries were obtained as 62.56% and 100%, respectively. To determine the dissolution kinetics of Mn and Zn, a new equation of shrinking core model was used and determined that Mn and Zn were dissolved in H2SO4 solution by interfacial mass transfer and diffusion across the product layer.
ISSN: 0149-6395
Appears in Collections:Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collections
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collections

Show full item record

CORE Recommender

Page view(s)

checked on Sep 18, 2023

Google ScholarTM



Items in GCRIS Repository are protected by copyright, with all rights reserved, unless otherwise indicated.