Non-Ferrous Metals and PGM Recovery from Low-Grade Copper–Nickel Concentrate by Bioleaching and Further Cyanidation
نویسندگان
چکیده
The aim of the present work was to perform copper, nickel, and platinum group metals (PGMs) recovery from low-grade copper–nickel concentrate containing pyrrhotite, pentlandite, chalcopyrite by bioleaching in stirred tank reactors batch mode subsequent cyanidation. contained (%) Fe 32.7, Cu 0.7, Ni 2.3, Stotal 20.9, Ssulfide 17, 0.1 g/t Pt, 1.35 Pd. performed at 30 40 °C using two different microbial consortia. At °C, mixed culture including Acidithiobacillus ferrivorans strains isolated sample acid mine drainage deposit. population formed during long-term copper-zinc °C. Bioleaching for days pulp density 10% (solid liquid ratio 1:10). 70% 14% were leached, while 72% 34% recovered solution PGM extracted residue obtained Cyanidation made it possible extract 5.5% Pt 17.3% Pd 37.8% 87.8% residue. Thus, shown that studied might be processed cyanidation both non-ferrous PGM.
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ژورنال
عنوان ژورنال: Minerals
سال: 2022
ISSN: ['2075-163X']
DOI: https://doi.org/10.3390/min12030340