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U.S. Department of Energy
Office of Scientific and Technical Information

Results of gas-fired flash-smelting tests. Phase 1-3. Topical technical report, November 1987-April 1989

Technical Report ·
OSTI ID:6661687
A natural gas-fired burner for the HRD FLAME REACTOR Process was designed and successfully tested on over 450 tons of Electric Arc Furnace (EAF) dust, and over a wide range of operating conditions. The coal/coke-fired FLAME REACTOR Process has already been demonstrated as an efficient and economic means of recovering zinc from EAF dust as a salable oxide product, and a salable nonhazardous, iron-rich slag product. The results of the work indicate that the natural gas-fired process has a higher zinc capacity for a given reactor size, with zinc recoveries 5-10 percentage points higher than coal/coke processing at high throughputs. Gas-fired capital costs are about 15% less than coal for a 20,000 STPY EAF dust plant. Smaller plants show even higher break-even costs. Net processing costs are about $100/ton of EAF dust, which is extremely competitive with land-filling and other recycling options.
Research Organization:
Horsehead Resource Development Co., Inc., Monaca, PA (USA)
OSTI ID:
6661687
Report Number(s):
PB-90-247586/XAB; CNN: GRI-5087-235-1601
Country of Publication:
United States
Language:
English