Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Group iva metal
Patent
1973-10-16
1976-01-20
Carter, Herbert T.
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Group iva metal
260436, 423 98, 423435, 423571, C01G 2114, C22B 1304
Patent
active
039339734
ABSTRACT:
A method is disclosed for leaching finely divided lead sulphide bearing material to convert contained lead values to soluble lead acetate with concurrent conversion of sulphur values associated with the lead sulphide to an elemental state. The method involves forming a slurry consisting of the material dispersed in an aqueous medium containing free acetate ions and having a pH below 5.1. The slurry is reacted at a temperature of 60.degree. to 120.degree.C. with a free oxygen-bearing gas under a partial pressure of oxygen of 20 to 60 p.s.i. in order to convert lead sulphide to soluble lead acetate with concurrent production of insoluble elemental sulphur.
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Mackiw, U. N. Current Trends in Chemical Metallurgy, Can. J. Chem. Engr. V. 46 (1) Feb. 1968 pp. 3-15.
Evans David John Ivor
Masters Ian M.
Carter Herbert T.
Fors Arne I.
Piper Frank I.
Sherritt Gordon Mines Limited
Straub Gary P.
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