Next Article in Journal
Investigation of the Geometry of Metal Tube Walls after Necking in Uniaxial Tension
Next Article in Special Issue
Evolution of Anode Porosity under Air Oxidation: The Unveiling of the Active Pore Size
Previous Article in Journal / Special Issue
Impact of the Solidification Rate on the Chemical Composition of Frozen Cryolite Bath
Article Menu
Issue 3 (March) cover image

Export Article

Open AccessArticle
Metals 2017, 7(3), 98; doi:10.3390/met7030098

Effects of Charcoal Addition on the Properties of Carbon Anodes

1
Department of Mining, Metallurgical and Materials Engineering, Université Laval, Québec, QC G1V 0A6, Canada
2
NSERC/Alcoa Industrial Research Chair MACE3 and Aluminum Research Centre REGAL, Université Laval, Québec, QC G1V 0A6, Canada
3
Alcoa Primary Metals, Alcoa Technical Center, 100 Technical Drive, Alcoa Center, PA 15069-0001, USA
*
Author to whom correspondence should be addressed.
Academic Editor: Hugo F. Lopez
Received: 26 January 2017 / Revised: 10 March 2017 / Accepted: 13 March 2017 / Published: 16 March 2017
View Full-Text   |   Download PDF [1960 KB, uploaded 16 March 2017]   |  

Abstract

Wood charcoal is an attractive alternative to petroleum coke in production of carbon anodes for the aluminum smelting process. Calcined petroleum coke is the major component in the anode recipe and its consumption results in a direct greenhouse gas (GHG) footprint for the industry. Charcoal, on the other hand, is considered as a green and abundant source of sulfur-free carbon. However, its amorphous carbon structure and high contents of alkali and alkaline earth metals (e.g., Na and Ca) make charcoal highly reactive to air and CO2. Acid washing and heat treatment were employed in order to reduce the reactivity of charcoal. The pre-treated charcoal was used to substitute up to 10% of coke in the anode recipe in an attempt to investigate the effect of this substitution on final anode properties. The results showed deterioration in the anode properties by increasing the charcoal content. However, by adjusting the anode recipe, this negative effect can be considerably mitigated. Increasing the pitch content was found to be helpful to improve the physical properties of the anodes containing charcoal. View Full-Text
Keywords: anodes; charcoal; petroleum coke; density; electrical resistivity; mechanical properties anodes; charcoal; petroleum coke; density; electrical resistivity; mechanical properties
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Hussein, A.; Fafard, M.; Ziegler, D.; Alamdari, H. Effects of Charcoal Addition on the Properties of Carbon Anodes. Metals 2017, 7, 98.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Metals EISSN 2075-4701 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top