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Purification of metals by molten metal filtration.

Authors
Sorrell-CA; Hilliard-HE; Schrodt-DJ
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; :503-517
Link
NIOSHTIC No.
10004843
Abstract
The Bureau of Mines is studying methods for fractionating multicomponent metal scrap by filtration. This is to be accomplished by separation of liquid and solid phases consisting of (1) liquid and crystalline phases formed by addition of a component that reacts with one or more components in the liquid to form a compound with a high melting point, (2) liquid and crystalline assemblages equilibrated at constant temperature, and (3) liquid metals from fibers or particles in metal matrix composites. Equilibria in the systems Pb-Sb-Al, Al-Ti-B, Al-Si, and in superalloys are discussed. Data are given for purification of Pb-Sb alloys by formation and removal of AlSb, for purification of al by formation of TiB2, and for purification of Al by filtration of the Al-Si eutectic liquid from purified solid Al. Varieties of available filter media are described.
Keywords
Metals; Metallurgy; Metallurgical-processes; Waste-treatment
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 101-85
NIOSH Division
AVRC
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
OR; PA
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