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Recovery of Phosphates and Metals from Waste Phosphate Sludge by Reduction-sinter Processes.

Authors
Waters-RF; Powell-HE; Cochran-AA
Source
NTIS: PB 201 891 :10 pages
Link
NIOSHTIC No.
10008772
Abstract
The Bureau of Mines developed laboratory-scale processes to recover sodium phosphates and metal values from waste sludges generated by the phosphate treatment of automobile and appliance components. After treatment of the sludge with naoh, followed by coke or hydrogen reduction and sintering, zinc and lead were recovered as fume; the sinter was separated by leaching into a metallic product, chiefly iron and nickel, and high-purity disodium or trisodium phosphate.
Publication Date
19710101
Document Type
IH; Report of Investigation;
Fiscal Year
1971
NTIS Accession No.
PB-201891
NTIS Price
A02
Identifying No.
RI 7533
NIOSH Division
RORC;
Source Name
NTIS: PB 201 891
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