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Oxidation of Lead Blast Furnace Matte.

Authors
Corrick-JD; Sutton-JA
Source
U S Pat 3 615 190 1971 Oct; :
Link
NIOSHTIC No.
10011853
Abstract
A process is described for oxidizing lead blast furnace matte which consists of treating the matte with o2 in an acidic aqueous solution having a ph not higher than 1.5 and a temperature no higher than 50 deg. C. Metal sulfides are oxidized in the matte to sulfates which can then be separated by conventional leaching methods. The pb blast furnace matte used contains pb 10-20, cu 1-2, and fe 20-40, all of which are in the form of sulfides. The matte is ground to a particle size of -200 mesh prior to reacting with mineral acid. Cu and fe also are recovered.
Publication Date
19711001
Document Type
PA;
Fiscal Year
1972
Identifying No.
PAT 3,615,190
NIOSH Division
CPRC;
Source Name
U.S. Pat. 3,615,190; Oct. 26, 1971; Chem. Abstr. 76:27,319S
Page last reviewed: May 5, 2020
Content source: National Institute for Occupational Safety and Health Education and Information Division