Skip navigation
  • Logo
  • Home
  • Communities
    & Collections
  • Research Outputs
  • Researchers
  • Projects
  • Explore by
    • Research Outputs
    • Researchers
    • Projects
  • Sign on to:
    • My DSpace
    • Receive email
      updates
    • Edit Account details
FFH logo

  1. RePhyChem
  2. Research Outputs
  3. Journal Article
Please use this identifier to cite or link to this item: https://dspace.ffh.bg.ac.rs/handle/123456789/1448
Title: Recovery of Rare-Earth Elements from Printed Circuit Boards by Vacuum Pyrolysis and Multiple Electrostatic Separation
Authors: Popović, Andjelka
Manojlović, Vaso
Adnađević, Borivoj 
Petrović, Jelena
Kamberović, Željko
Ranitović, Milisav
Keywords: electrostatic separation (ESS);low-temperature vacuum pyrolysis;rare-earth elements (REEs);waste printed circuit boards (WPCBs)
Issue Date: 1-Jun-2022
Journal: Processes
Abstract: 
The influence of the multi-stage electrostatic separation (ESS) of mechanically treated and magnetically separated waste electronic material and the pyrolysis of the selected ESS fraction on the distribution of metal elements (MEs), elements contained in refractory oxides (EROs), bromine (Br), and rare-earth elements (REEs) contained in waste electronic material was studied. The concentration of MEs, Br, and EROs in the tested samples was determined by X-ray fluorescence analysis, and the concentration of REEs and uranium was determined by inductively coupled plasma mass spectrometry (ICP-MS). The analysis of the distribution of elements during the multi-stage ESS showed that MEs were predominantly distributed in the conductive fraction and Br, EROs, and REEs were distributed in the nonconductive fraction. The nonconductive fraction (NC2) of the two-stage ESS was subjected to a low-temperature vacuum pyrolysis (T = 550◦C, p = 10 mbar). The distribution of pyrolysis products of the NC2 fraction was determined. The main products of the vacuum pyrolysis experiments were the solid residue phase (54.4 wt.%) and oils (35.4 wt.%). It has been proven that pyrolysis can significantly increase the concentration of MEs, EROs, and REEs in raw materials, thereby providing a method for cost-effectively obtaining of REEs from waste printed circuit boards.
URI: https://dspace.ffh.bg.ac.rs/handle/123456789/1448
DOI: 10.3390/pr10061152
Appears in Collections:Journal Article

Show full item record

SCOPUSTM   
Citations

4
checked on Jun 9, 2025

Page view(s)

21
checked on Jun 10, 2025

Google ScholarTM

Check

Altmetric

Altmetric


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


Explore by
  • Communities
    & Collections
  • Research Outputs
  • Researchers
  • Projects
University of Belgrade
Faculty of Physical Chemistry
Studentski trg 12-16
11158 Belgrade 118
PAC 105305
SERBIA
University of Belgrade Faculty of Physical Chemistry