Authors
Ahmet Deniz Bas, Haci Deveci, Ersin Y Yazici
Publication date
2014/6/10
Journal
Separation and Purification Technology
Volume
130
Pages
151-159
Publisher
Elsevier
Description
The leachability tests for manufacturing scrap TV boards (STVB) have indicated the release of metals beyond the limit levels with potential problems for environmental pollution. Treatment of STVB is therefore requisite for its safe disposal in landfills. The nitric acid leaching of STVB for the removal/recovery of valuable metals (Cu and Ag) was studied by adopting the Box–Behnken design. Statistical analysis of data has revealed that the concentration of nitric acid is the most influential parameter affecting the leaching process. Effects of solids ratio and temperature on the rate and extent of the extraction of copper were also proved to be statistically significant. However, the interaction effects of these parameters were found to be insignificant. The leaching kinetics were consistent with the shrinking particle model under chemical control with an activation energy of 38.6 kJ/mol. High concentrations of nitric acid (2–5 M …
Total citations
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Scholar articles
AD Bas, H Deveci, EY Yazici - Separation and Purification Technology, 2014