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Purification of secondary zinc materials contaminated with chlorine.

Authors
Hager-JP; Lemons-JF Jr.
Source
Recycle and secondary recovery of metals: proceedings of the International Symposium on Recycle and Secondary Recovery of Metals and the Fall Extractive and Process Metallurgy Meeting, December 1-4, 1985, Fort Lauderdale, Florida. Taylor PR, Sohn HY, Jarrett N, eds. Warrendale, PA: Metallurgical Society, 1987 Feb; :203-223
Link
NIOSHTIC No.
10005207
Abstract
New process chemistry has been developed for the dechlorination roasting of secondary zinc materials. An experimental study has been undertaken on the use of gaseous ferric chloride [Fe2c16(g)] to enhance the volatilization of impurity chlorides and zinc chloride through the formation of gaseous complexes. The species CdFe2c18(g), PbFe2c18(g), and ZnFeC15(g) have been identified and their thermodynamic properties determined. To provide a baseline for the measurement of vaporization enhancement through vapor complex formation, the vapor pressures of CdC12, PbC12, and ZnC12 were also determined. The thermodynamic data have been used to calculate the degree of visibility enhancement for different processing conditions. The results indicate that significant increases in vapor pressure are possible. An information base has been developed that should provide for further development and commercialization of the processing concept.
Keywords
Metallurgical-processes; Metallurgy; Waste-treatment; Metals
Publication Date
19870201
Document Type
OP; Conference/Symposia Proceedings
Editors
Taylor-PR; Sohn-HY; Jarrett-N
Fiscal Year
1987
NTIS Accession No.
NTIS Price
ISBN No.
9780873390071
Identifying No.
OP 71-86
NIOSH Division
DRC
Source Name
Recycle and secondary recovery of metals: proceedings of the International Symposium on Recycle and Secondary Recovery of Metals and the Fall Extractive and Process Metallurgy Meeting, December 1-4, 1985, Fort Lauderdale, Florida
State
PA; CO
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