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Copper removal from solid ferrous scrap by a solid/gas.

Authors
Hartman-AD; Oden-LL; Davis-DL
Source
Iron Steelmak 1994 May; 21(5):59-62
Link
NIOSHTIC No.
10005443
Abstract
The copper contained in scrap steel can be effectively removed by treatment with air - HCl mixtures at about 800 degrees C. In experimental studies, the formation was found gaseous CuCl2 in gas-solid reaction. The iron components were protected by forming an oxide layer. In case of insufficient protection of the iron surface ( at temperatures below 800 degrees C ) there were copper deposits on the iron. Currently, a 70 - kg furnace is used to treat shredder scrap from cars in testing.
Keywords
Steelmaking; scrap steel; copper; gas-solid reaction; hydrochloric acid; copper chloride; experimental investigation; accompanying element contamination; oxide; practical examination; decopperizing; Scrap iron; Recovery metals; Electric steel plant; Steelmaking; Gibbs free energy; Experimental study
CODEN
IRSTDJ
Publication Date
19940501
Document Type
Journal Article
Fiscal Year
1994
NTIS Accession No.
NTIS Price
Identifying No.
OP 161-94
Issue of Publication
5
ISSN
0275-8687
NIOSH Division
ALRC
Source Name
Iron & Steelmaker
State
OR
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