Recycling Polymer-Rich Waste Printed Circuit Boards at High Temperatures: Recovery of Value-Added Carbon Resources

V. Sahajwalla, R. Cayumil, R. Khanna, M. Ikram-Ul-Haq, R. Rajarao, P. S. Mukherjee, A. Hill

Resultado de la investigación: Article

14 Citas (Scopus)

Resumen

High-temperature transformation studies were carried out on polymer-rich waste printed circuit boards (PCBs) in the temperature range of 750–1,350 °C in argon atmosphere. Copper-rich metallic fractions started to separate out as foils/droplets at temperatures above 950 °C producing significant quantities of carbonaceous residue. In-depth characterisation of the residue was carried out using X-ray diffraction, Raman spectroscopy, SEM/EDS, surface area analysis, and LECO measurements. The recovery of carbons from waste PCBs reached up to 25 % of total weight. These carbons generally had a disordered structure with 3–4 layers stacking along the c-axis. The presence of metals in the carbonaceous residue became negligibly small at 1,350 °C, significantly enhancing the quality of the carbonaceous product (carbon content: 52–74 wt%). This study has shown that potentially vast reserves of carbon could be recovered from e-waste through appropriate recycling, while minimising the impact of waste on the environment.

Idioma originalEnglish
Páginas (desde-hasta)75-84
Número de páginas10
PublicaciónJournal of Sustainable Metallurgy
Volumen1
N.º1
DOI
EstadoPublished - 1 mar 2015

Huella dactilar

Printed circuit boards
Recycling
Polymers
Carbon
recycling
polymer
Recovery
carbon
resource
Temperature
Argon
Raman spectroscopy
argon
stacking
Metal foil
droplet
Copper
Energy dispersive spectroscopy
surface area
Metals

ASJC Scopus subject areas

  • Metals and Alloys
  • Mechanics of Materials
  • Environmental Science (miscellaneous)

Citar esto

Sahajwalla, V. ; Cayumil, R. ; Khanna, R. ; Ikram-Ul-Haq, M. ; Rajarao, R. ; Mukherjee, P. S. ; Hill, A. / Recycling Polymer-Rich Waste Printed Circuit Boards at High Temperatures : Recovery of Value-Added Carbon Resources. En: Journal of Sustainable Metallurgy. 2015 ; Vol. 1, N.º 1. pp. 75-84.
@article{a15298869d1d4998889a98f3742f2041,
title = "Recycling Polymer-Rich Waste Printed Circuit Boards at High Temperatures: Recovery of Value-Added Carbon Resources",
abstract = "High-temperature transformation studies were carried out on polymer-rich waste printed circuit boards (PCBs) in the temperature range of 750–1,350 °C in argon atmosphere. Copper-rich metallic fractions started to separate out as foils/droplets at temperatures above 950 °C producing significant quantities of carbonaceous residue. In-depth characterisation of the residue was carried out using X-ray diffraction, Raman spectroscopy, SEM/EDS, surface area analysis, and LECO measurements. The recovery of carbons from waste PCBs reached up to 25 {\%} of total weight. These carbons generally had a disordered structure with 3–4 layers stacking along the c-axis. The presence of metals in the carbonaceous residue became negligibly small at 1,350 °C, significantly enhancing the quality of the carbonaceous product (carbon content: 52–74 wt{\%}). This study has shown that potentially vast reserves of carbon could be recovered from e-waste through appropriate recycling, while minimising the impact of waste on the environment.",
keywords = "Disordered carbons, E-waste, PCBs, Recycling, Thermal transformations",
author = "V. Sahajwalla and R. Cayumil and R. Khanna and M. Ikram-Ul-Haq and R. Rajarao and Mukherjee, {P. S.} and A. Hill",
year = "2015",
month = "3",
day = "1",
doi = "10.1007/s40831-014-0002-4",
language = "English",
volume = "1",
pages = "75--84",
journal = "Journal of Sustainable Metallurgy",
issn = "2199-3823",
publisher = "Springer International Publishing AG",
number = "1",

}

Recycling Polymer-Rich Waste Printed Circuit Boards at High Temperatures : Recovery of Value-Added Carbon Resources. / Sahajwalla, V.; Cayumil, R.; Khanna, R.; Ikram-Ul-Haq, M.; Rajarao, R.; Mukherjee, P. S.; Hill, A.

En: Journal of Sustainable Metallurgy, Vol. 1, N.º 1, 01.03.2015, p. 75-84.

Resultado de la investigación: Article

TY - JOUR

T1 - Recycling Polymer-Rich Waste Printed Circuit Boards at High Temperatures

T2 - Recovery of Value-Added Carbon Resources

AU - Sahajwalla, V.

AU - Cayumil, R.

AU - Khanna, R.

AU - Ikram-Ul-Haq, M.

AU - Rajarao, R.

AU - Mukherjee, P. S.

AU - Hill, A.

PY - 2015/3/1

Y1 - 2015/3/1

N2 - High-temperature transformation studies were carried out on polymer-rich waste printed circuit boards (PCBs) in the temperature range of 750–1,350 °C in argon atmosphere. Copper-rich metallic fractions started to separate out as foils/droplets at temperatures above 950 °C producing significant quantities of carbonaceous residue. In-depth characterisation of the residue was carried out using X-ray diffraction, Raman spectroscopy, SEM/EDS, surface area analysis, and LECO measurements. The recovery of carbons from waste PCBs reached up to 25 % of total weight. These carbons generally had a disordered structure with 3–4 layers stacking along the c-axis. The presence of metals in the carbonaceous residue became negligibly small at 1,350 °C, significantly enhancing the quality of the carbonaceous product (carbon content: 52–74 wt%). This study has shown that potentially vast reserves of carbon could be recovered from e-waste through appropriate recycling, while minimising the impact of waste on the environment.

AB - High-temperature transformation studies were carried out on polymer-rich waste printed circuit boards (PCBs) in the temperature range of 750–1,350 °C in argon atmosphere. Copper-rich metallic fractions started to separate out as foils/droplets at temperatures above 950 °C producing significant quantities of carbonaceous residue. In-depth characterisation of the residue was carried out using X-ray diffraction, Raman spectroscopy, SEM/EDS, surface area analysis, and LECO measurements. The recovery of carbons from waste PCBs reached up to 25 % of total weight. These carbons generally had a disordered structure with 3–4 layers stacking along the c-axis. The presence of metals in the carbonaceous residue became negligibly small at 1,350 °C, significantly enhancing the quality of the carbonaceous product (carbon content: 52–74 wt%). This study has shown that potentially vast reserves of carbon could be recovered from e-waste through appropriate recycling, while minimising the impact of waste on the environment.

KW - Disordered carbons

KW - E-waste

KW - PCBs

KW - Recycling

KW - Thermal transformations

UR - http://www.scopus.com/inward/record.url?scp=84934891802&partnerID=8YFLogxK

U2 - 10.1007/s40831-014-0002-4

DO - 10.1007/s40831-014-0002-4

M3 - Article

AN - SCOPUS:84934891802

VL - 1

SP - 75

EP - 84

JO - Journal of Sustainable Metallurgy

JF - Journal of Sustainable Metallurgy

SN - 2199-3823

IS - 1

ER -