Leaching of Calcareous Bornite Ore in Ammoniacal Solution Containing Ammonium Persulfate

The leaching process of copper from calcareous bornite ore using ammonium persulfate as an oxidant in ammoniacal solution was investigated. The effects of stirring speed, temperature, initial concentration of ammonia and ammonium persulfate, and liquid-to-solid (L/S) ratio on the extraction percenta...

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Bibliographic Details
Published in:Metallurgical and materials transactions. B, Process metallurgy and materials processing science Process metallurgy and materials processing science, 2014-12, Vol.45 (6), p.2027-2032
Main Authors: Liu, Zhi-xiong, Yin, Zhou-lan, Chen, Yi-guang, Xiong, Li-zhi
Format: Article
Language:English
Subjects:
Applied sciences
Bornite
Characterization and Evaluation of Materials
Chemistry and Materials Science
Copper
Copper ores
Exact sciences and technology
Extraction
Leaching
Materials Science
Metallic Materials
Metals. Metallurgy
Minerals
Nanotechnology
Process metallurgy
Production of metals
Stirring
Structural Materials
Surfaces and Interfaces
Thin Films
Transaction processing
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Summary:The leaching process of copper from calcareous bornite ore using ammonium persulfate as an oxidant in ammoniacal solution was investigated. The effects of stirring speed, temperature, initial concentration of ammonia and ammonium persulfate, and liquid-to-solid (L/S) ratio on the extraction percentage of copper from bornite ore were studied. The results show that the optimum leaching conditions for bornite ore with a maximum extraction of copper 88.9 pct are temperature 313.15 K (40 °C), reaction time 4 hours, stirring speed 600 r / min, L/S ratio 7/1 cm 3 /g, initial concentration of ammonia 2.0 mol/dm 3 , and ammonium persulfate 3.0 mol/dm 3 .
ISSN:1073-5615
1543-1916
DOI:10.1007/s11663-014-0139-3