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High Temperature Materials and Processes

Editor-in-Chief: Fukuyama, Hiroyuki

Editorial Board: Waseda, Yoshio / Fecht, Hans-Jörg / Reddy, Ramana G. / Manna, Indranil / Nakajima, Hideo / Nakamura, Takashi / Okabe, Toru / Ostrovski, Oleg / Pericleous, Koulis / Seetharaman, Seshadri / Straumal, Boris / Suzuki, Shigeru / Tanaka, Toshihiro / Terzieff, Peter / Uda, Satoshi / Urban, Knut / Baron, Michel / Besterci, Michael / Byakova, Alexandra V. / Gao, Wei / Glaeser, Andreas / Gzesik, Z. / Hosson, Jeff / Masanori, Iwase / Jacob, Kallarackel Thomas / Kipouros, Georges / Kuznezov, Fedor

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Volume 33, Issue 4


Effect of HDPE addition on the Pre-reduction of Mn3O4 to MnO by Metallurgical Coke

J.R. Dankwah / P. Koshy
  • School of Materials Science and Engineering, University of New South Wales, Sydney, NSW 2052, Australia
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Published Online: 2013-11-29 | DOI: https://doi.org/10.1515/htmp-2013-0069


The effect of high density polyethylene (HDPE) addition on the pre-reduction of Mn3O4 to MnO by metallurgical coke (Coke) has been investigated through experiments conducted in a laboratory horizontal tube furnace coupled with off-gas analysis through an infrared (IR) gas analyser. Composite pellets of Mn3O4 with Coke, HDPE and blends of Coke with HDPE (in three different proportions) were rapidly heated at 1150 °C under pure argon gas and the off gas was analysed continuously for CO, CO2 and CH4. The extent of pre-reduction of Mn3O4 to MnO was then calculated by mass balance for removable oxygen. The results showed improvements in the extent of pre-reduction of Mn3O4 to MnO when coke is blended with HDPE. The time for complete pre-reduction was found to decrease with an increase in the amount of HDPE that was blended with coke. A decrease in CO2 emissions was observed with HDPE addition.

Keywords: Mn3O4; MnO; pre-reduction; metallurgical coke; HDPE

PACS: 81.20.Ka

About the article

Received: 2013-07-18

Accepted: 2013-09-25

Published Online: 2013-11-29

Published in Print: 2014-08-01

Citation Information: High Temperature Materials and Processes, Volume 33, Issue 4, Pages 345–353, ISSN (Online) 2191-0324, ISSN (Print) 0334-6455, DOI: https://doi.org/10.1515/htmp-2013-0069.

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©2014 by Walter de Gruyter Berlin/Boston.Get Permission

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