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Title: Steelworks residues and the Waelz kiln treatment of electric arc furnace dust

Abstract

Electric arc furnace dust with a combined zinc and lead content in excess of 20% renders the dumping of this material impossible in many countries, for both statutory and financial reasons. In the Waelz process, dust is treated in a rotary kiln where it is heated to approximately 1,200 C. lead and zinc are volatilized under reducing conditions and collected as fine dust in the off-gas dust collection system. The oxide recovered in the off-gas filters contains approximately 55% Zn and up to 10% Pb, and is ideal feedstock for the Imperial Smelting furnace for lead/zinc recovery. The remaining slag is inert and unleachable so that it can be used as a building aggregate.

Authors:
 [1];  [2]
  1. Lurgi Metallurgie GmbH, Frankfurt (Germany)
  2. Lurgi Corp., Charlotte, NC (United States)
Publication Date:
OSTI Identifier:
218572
Resource Type:
Journal Article
Journal Name:
Iron and Steel Engineer
Additional Journal Information:
Journal Volume: 73; Journal Issue: 4; Other Information: PBD: Apr 1996
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; METAL INDUSTRY; WASTE MANAGEMENT; DUSTS; WASTE PROCESSING; LEAD; EVAPORATION; MATERIALS RECOVERY; ZINC; ARC FURNACES; ZINC OXIDES; LEAD OXIDES; CHEMICAL FEEDSTOCKS

Citation Formats

Strohmeier, G, and Bonestell, J E. Steelworks residues and the Waelz kiln treatment of electric arc furnace dust. United States: N. p., 1996. Web.
Strohmeier, G, & Bonestell, J E. Steelworks residues and the Waelz kiln treatment of electric arc furnace dust. United States.
Strohmeier, G, and Bonestell, J E. 1996. "Steelworks residues and the Waelz kiln treatment of electric arc furnace dust". United States.
@article{osti_218572,
title = {Steelworks residues and the Waelz kiln treatment of electric arc furnace dust},
author = {Strohmeier, G and Bonestell, J E},
abstractNote = {Electric arc furnace dust with a combined zinc and lead content in excess of 20% renders the dumping of this material impossible in many countries, for both statutory and financial reasons. In the Waelz process, dust is treated in a rotary kiln where it is heated to approximately 1,200 C. lead and zinc are volatilized under reducing conditions and collected as fine dust in the off-gas dust collection system. The oxide recovered in the off-gas filters contains approximately 55% Zn and up to 10% Pb, and is ideal feedstock for the Imperial Smelting furnace for lead/zinc recovery. The remaining slag is inert and unleachable so that it can be used as a building aggregate.},
doi = {},
url = {https://www.osti.gov/biblio/218572}, journal = {Iron and Steel Engineer},
number = 4,
volume = 73,
place = {United States},
year = {Mon Apr 01 00:00:00 EST 1996},
month = {Mon Apr 01 00:00:00 EST 1996}
}