Skip directly to search Skip directly to A to Z list Skip directly to page options Skip directly to site content

NIOSHTIC-2 Publications Search

Search Results

Recovery of zinc, copper, silver, and iron from zinc smelter residue.

Authors
Powell-HE; Higley-LW Jr.
Source
NTIS: PB 221 913 :1-15
Link
NIOSHTIC No.
10009006
Abstract
This Bureau of Mines study describes two processes for recovering zinc, copper, silver, and iron from the magnetic fraction of a waste generated by the primary smelting of zinc in horizontal retort distillation furnaces. The laboratory-scale procedures include reduction melting to produce a high-copper iron and matte smelting to produce a copper-silver-iron matte and metallic iron. Zinc is fumed in each process and recovered as the oxide. Direct reduction melting yields a metallic iron high in copper and a small rich matte from the sulfur contained in the waste. The products of the second process are a matte containing essentially all of the silver, about 80 percent of the copper and 37 percent of the iron, and an iron- copper alloy containing all of the remaining copper. Extraction with metallic lead or sodium sulfate recovers essentially all of the copper from the molten high-copper iron and yields an acceptable foundry iron.
Publication Date
19730101
Document Type
IH; Report of Investigations
Fiscal Year
1973
NTIS Accession No.
PB-221913
NTIS Price
A03
Identifying No.
RI-7754
NIOSH Division
RORC
Source Name
NTIS: PB 221 913
State
MO
TOP