PDF

Dissolution of Metals in Di fferent Bromide-Based Systems: Electrochemical Measurements and Spectroscopic Investigations

Simona Varvara, Sorin-Aurel Dorneanu

2020enmetalsbromidedissolutionelectrochemicalspectroscopy

Abstract

Language:

The dissolution of the main metals (Cu, Zn, Sn, Pb and Fe) found in waste printed circuit boards (WPCBs) was investigated by electrochemical corrosion measurements (potentiodynamic polarization and electrochemical impedance spectroscopy (EIS)) in different bromide-based systems that could be used as lixiviants in hydrometallurgical route of metals recovery. The analysis of the corrosion products was carried out by X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) measurements. All measurements showed that the addition of bromine in the electrolyte favors to great extents the dissolution process of all studied metals as compared to bromine-free electrolytes. In the investigated experimental conditions, the highest dissolution rates of the metals were obtained in acidic KBr solution containing 0.01 mol /L bromine and they decreased in the following order: Zn >> Sn > Pb > Fe >Cu. The XRD and XPS chemical assessment allowed the identification of the dissolution products formed on the metallic surfaces after exposure to the electrolytic conditions.

Download

Cite This Work

@article{b4b02be5-f6df-4bb4-b3f8-1cee6280d589,
  title={Dissolution of Metals in Di fferent Bromide-Based Systems: Electrochemical Measurements and Spectroscopic Investigations},
  author={Simona Varvara and Sorin-Aurel Dorneanu},
  year={2020},
  language={en}
}
TY  - JOUR
TI  - Dissolution of Metals in Di fferent Bromide-Based Systems: Electrochemical Measurements and Spectroscopic Investigations
AU  - Simona Varvara
AU  - Sorin-Aurel Dorneanu
PY  - 2020
LA  - en
ER  -

Similar Items

Metal Casting Processes

Unknown, Unknown

This chapter discusses metal casting processes, highlighting the diversity and common characteristics among them. The objective is to elucidate the fu

2023enPDF

Quenching theory and technology B Liéséciâc; International Federation for Heat Treatment and ( WeLib.org )

2026enPDF

Recycling of Printed Circuit Boards

2026enPDF

Equilibrium conditions during solvent extraction of metals using Cyanex 272 and D2EHPA as extractant

Kafumbila Kasonta Joseph

This publication presents the latest adjustments to equilibrium conditions during the solvent extraction of metals using Cyanex 272 and D2EHPA as extr

2026enPDF

Direct leach approaches to Platinum Group Metal (PGM) ores and concentrates: A review

C.N. Mpinga, J.J. Eksteen

Platinum Group Metals (PGMs), often with associated gold, have very few occurrences where they are present in an ore deposit at economically extractab

2015enPDF

Artificial intelligence-aided materials design: AI-algorithms and case studies on alloys and metallurgical processes

Rajesh Jha, Bimal Kumar Jha

This book describes the application of artificial intelligence (AI) and machine learning (ML) concepts to develop predictive models that can be used t

2022enPDF