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Recycling of Steelmaking Dusts.

Authors
Barnard-PG; Starliper-AG; Dressel-WM; Fine-MM
Source
NTIS: PB 208 016 :10 pages
Link
NIOSHTIC No.
10009765
Abstract
Methods are described for upgrading steel furnace dusts to produce high-iron pellets for recycling. These dusts contain impurities, such as zinc, lead, and copper, which reflect the character of the feed to the furnace and the operation of the furnaces. Treatment procedures described include (1) pelletization and reduction roasting to remove lead and zinc, (2) sulfation with sulfuric acid or so2, followed by leaching to remove copper and zinc and pelletization and reduction to remove lead and to metallize iron. (3) Pelletization of mixtures of dusts containing carbon, zinc and lead, followed by roasting to eliminate these elements, and (4) pelletization and roasting of mixtures of blast furnace dusts, basic- oxygen-furnace dusts, and mill scale.
Publication Date
19720101
Document Type
IH;
Fiscal Year
1972
NTIS Accession No.
PB-208016
NTIS Price
A02
Identifying No.
TPR 52
NIOSH Division
RORC;
Source Name
NTIS: PB 208 016
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