2015-Sustainable Industrial Processing Summit
SIPS 2015 Volume 11: Recycling & Environmental
| Editors: | Kongoli F, Havlik T, Pagnanelli F |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2015 |
| Pages: | 410 pages |
| ISBN: | 978-1-987820-34-8 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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Leaching Electric Arc Furnace Dust in Hydrochloric Acid
Ivana Kobialkova1; Tomas Havlik2; Frantisek Kukurugya3; Greta Maruskinova1;1, Kosice, Slovakia (Slovak Republic); 2TECHNICAL UNIVERSITY OF KOSICE, FACULTY OF METALLURGY,, Kosice, Slovakia (Slovak Republic); 3TECHNICAL UNIVERSITY, FACULTY OF METALLURGY, DEPT. OF NON-FERROUS METALS AND WASTE TREATMENT, Kosice, Slovakia (Slovak Republic);
Type of Paper: Regular
Id Paper: 150
Topic: 7
Abstract:
Production of steel is associated with generation of waste containing non-ferrous metals. The aim of this contribution is hydrometallurgical recycling electric arc furnace dust containing about 30 % Fe, 20 % Zn, 1, 5 % Pb and other metals in minority content. The work was focused on the kinetic study of EAF steelmaking dust by leaching in aqueous HCl solution at concentration 0,1; 0,5 and 1M and ratio L:S=20. The temperature range 20°C – 95°C was used for experiments. The highest extraction of zinc (66%) and iron (49%) was achieved in 1M HCl at 95°C. The concentration has expressive influence to extraction of lead into the solution. By increasing concentration of HCl, extraction of lead to solution raises and temperature did not have influence to lead extraction into the solution. The highest lead extraction (80%) was achieved using 1M HCl at all selected temperatures. The extraction of zinc, iron and lead into solution can be increased by using more concentrated HCl, respectively by using an intensification leaching method.
Keywords:
Acid; Dust; Hydrometallurgical; Iron; Leaching; Metal; Non-Ferrous; Recycling; Zinc;References:
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