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Fluxless Recovery of Metallic Aluminum from Wastes.

Authors
Montagna-D
Source
U S Pat 3 999 980 1976 Dec; :
Link
NIOSHTIC No.
10011895
Abstract
(See also chem. Abstr. 86:143,538T) aluminum is recovered from waste aluminum materials including beverage can scrap and dross skimmed from aluminum melts in furnaces, crucibles, or ladles, by heating the scrap or dross at 700 deg-800 deg c under an ar atmosphere with agitation to collect metallic material at the bottom without the conventional addition of any salt flux, leaving a salt- free porous oxide mass that can be disposed of a nonpolluting landfill, or used for thermal insulation in hot tops of molds for large steel ingots.
Publication Date
19761201
Document Type
PA;
Fiscal Year
1977
NTIS Accession No.
NTIS Price
Identifying No.
PAT 3,999,980
NIOSH Division
CPRC;
Source Name
U.S. Pat. 3,999,980; Dec. 28, 1976; Chem. Abstr. 84:138,941Y
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