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2011-Sustainable Industrial Processing Summit
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| Editors: | Florian K |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2012 |
| Pages: | 828 pages |
| ISBN: | 978-0-9879917-0-6 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
Hydrometallurgical Process For The Recovery Of Manganese From Pelletized Silicomanganese Submerged Arc Furnace Dust
Sydney Nkosi1; Joalet D. Steenkamp2; Dick R. Groot2; Johan P. Gous3; SELECT * FROM contact WHERE email_address REGEXP('sydneyn@assmangchrome.co.za|joalet.steenkamp@up.ac.za|dick.groot@up.ac.za|johang@transalloys.co.za')*********************1ASSMANG LTD, Machadodorp, South Africa; 2UNIVERSITY OF PRETORIA, Pretoria, South Africa; 3TRANSALLOYS, eMalahleni, South Africa;
Type of Paper: Regular
Id Paper: 406
Topic: 4
Abstract:
The present paper focuses on the characterization and leaching of pelletized SiMn SAFD (silicomanganese submerged arc furnace dust). Characterization of the examined submerged arc furnace dust was carried out by X-ray fluorescence analysis (XRF), X-ray diffraction (XRD) and scanning electron microscopy (SEM). A number of phases were identified, including metallic manganese, jacobsite, braunite, diopside and quartz. Leaching experiments were based on the extraction of Mn from SAFD with dilute sulphuric acid at atmospheric pressure. The influence of reaction temperature was studied and up to 49 percent Mn extraction was achieved. XRD and XRF were used for the characterization of the leached residues. This showed that the major phases present were braunite or bixbyite and gypsum.