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Recovery of metals and phosphates from waste phosphate sludge.

Authors
Waters-RF; Powell-HE; Cochran-AA
Source
Met Finish 1971 Aug; 69(8):39-42
NIOSHTIC No.
10010630
Abstract
Waste sludges from phosphate treatment of automobile and appliance components were processed in the laboratory to recover metal values and trisodium phosphate. After treatment of the sludge with naoh, followed by hydrogen reduction and sintering, zinc and lead were recovered as fume; the sinter upon leaching was separated into a metallic residue, chiefly iron and nickel, and high-purity trisodium phosphate. The process offers an antipollution alternative in disposing of phosphate sludges in which there is an economic incentive to recycle the valuable materials.
CODEN
MEFIA7
Publication Date
19710801
Document Type
OP; Journal Article
Fiscal Year
1971
NTIS Accession No.
NTIS Price
Identifying No.
OP 129-71
Issue of Publication
8
ISSN
0026-0576
NIOSH Division
RORC
Source Name
Metal Finishing; Preparation, Electroplating, Coating
State
MO
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