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Recovery of zinc and lead from brass smelter dust.
Fukubayashi-HH; Higley-LW Jr.
NTIS: PB 233 422 1974 May; :1-10
This Bureau of Mines report describes the development of a pyrometallurgical process for the recovery of the zinc and lead contained in brass smelter flue dusts, which constitute a recycling or disposal problem. Tests on brass flue dust from several sources were made in a quartz tube, heated by an electric furnace to temperatures as high as 1,050 deg c. The dusts were mixed with carbon and heated in an oxygen-free atmosphere. It was demonstrated that 98 pct of the zinc and 12 to 25 pct of the lead, both in the metallic state, could readily be removed from the dusts. It was also found that 75 pct of the zinc could be recovered, with less than 0.1 pct of the lead, in the absence of chlorides. Pelletization techniques were investigated and 0.6-Inch pellets were found to be optimal.
IH; Report of Investigations
NTIS Accession No.
NTIS: PB 233 422
Page last reviewed: September 2, 2020
Content source: National Institute for Occupational Safety and Health Education and Information Division