Electric arc furnace dust management: A review of technologies

Journal Article · Sat Mar 01 04:00:00 EST 1997 · Iron and Steel Engineer

OSTI ID:460589

Zunkel, A D ^[1]

---

1. A.D. Zunkel Consultants Inc., Vancouver, WA (United States)

Technologies to recover and recycle values from, stabilize and dispose of, and glassify and sell electric arc furnace dust by pyrometallurgical, hydrometallurgical, and hybrid methods continue to emerge, be reduced to commercial practice, then succeed and move forward or fail and fade away. The current development and/or commercial status of the following types of processes have been reviewed and analyzed: pyrometallurgical such as kiln, flame reactor, bath smelting, and plasma and electric furnace-based processes; hydrometallurgical involving acidic or basic leaching alone or combined with electrowinning; hybrid hydrometallurgical/pyrometallurgical stabilization techniques using cement and other additives; and glassification. Comparative costs, the trend toward higher value-added products, and the prognosis for these technologies are assessed. Regulations changed significantly during 1995 regarding allowable disposal methods, toward more flexible options. These changes are affecting current and future dust producers, processors and developers of dust management technology. The impacts are discussed.

• OSTI ID: 460589
• Journal Information: Iron and Steel Engineer, Journal Name: Iron and Steel Engineer Journal Issue: 3 Vol. 74; ISSN IRSEA5; ISSN 0021-1559
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
ARC FURNACES
DUSTS
ECONOMICS
HYDROMETALLURGY
MATERIALS RECOVERY
PYROMETALLURGY
RECYCLING
STABILIZATION
VITRIFICATION
WASTE DISPOSAL
WASTE MANAGEMENT