Record Details

Recovery of lead from copper anode slime and study of kinetics of lead dissolution

NOPR - NISCAIR Online Periodicals Repository

View Archive Info
 
 
Field Value
 
Title Recovery of lead from copper anode slime and study of kinetics of lead dissolution
 
Creator Ghader, Sattar
Rezaei, Hamed
Ghareghashi, Abbas
 
Subject Acid leaching
Copper anode slime
Leaching kinetic
Lead extraction
Lead recovery
 
Description 213-221
In this study, an effective method of recovering metallic lead from copper anode slime is investigated. A method of
leaching with nitric acid at atmospheric pressure is also proposed, and the effect of various factors on the leaching effect is
studied. The kinetics of leaching is studied, and a model of the leaching process is established. Copper anode slime residues,
rich in valuable metals, provide one of the critical resources for recycling metals in favourable conditions. A green acid
leaching process for lead (Pb) enrichment from copper (Cu) anode slime is developed in this study. Under ideal conditions,
HNO3 successfully leached 72% Pb in 2 h. The optimum leaching conditions are the stirring speed of 1000 rpm, the
temperature of 90 °C, the HNO3 concentration of 4 M, and the solution-to-anode slime ratio of 10:1. The kinetics of lead
leaching from anode slime is developed according to the phase composition and shape of the leaching residue and raw
material. The modified grain model is considered for this purpose. MATLAB is used to solve the model in isothermal mode
by using the orthogonal collocation method. The results are good compatibility with experimental data. The activation
energy is calculated using the parameters derived from the modified tablet-grain model based on the test conditions.
Therefore, the lead recovery under the proposed process has a promising potential for treating Cu anode slime.
 
Date 2024-03-12T09:28:29Z
2024-03-12T09:28:29Z
2024-03
 
Type Article
 
Identifier 0975-0991 (Online); 0971-457X (Print)
http://nopr.niscpr.res.in/handle/123456789/63573
https://doi.org/10.56042/ijct.v31i2.4519
 
Language en
 
Publisher NIScPR-CSIR, India
 
Source IJCT Vol.31(2) [March 2024]