Influence of ultrasound in ammoniacal leaching of a copper oxide ore

A comparative study of copper recovery with mechanical agitation compared to sonication was made using varying pulp densities. The study was conducted at ambient temperatures (298K) using a fixed range of particle size -300+150 mu m) in 2M ammoniacal solution. The results of Cu recovery are presente...

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Veröffentlicht in:	Metallurgical and materials transactions. B, Process metallurgy and materials processing science Process metallurgy and materials processing science, 1997-08, Vol.28 (4), p.721-723
Hauptverfasser:	SARVESWARA RAO, K, NARAYANA, K. L, SWAMY, K. M, MURTY, J. S
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Exact sciences and technology Hydrometallurgy Metals. Metallurgy Production of metals Production of non ferrous metals. Process materials
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Zusammenfassung:	A comparative study of copper recovery with mechanical agitation compared to sonication was made using varying pulp densities. The study was conducted at ambient temperatures (298K) using a fixed range of particle size -300+150 mu m) in 2M ammoniacal solution. The results of Cu recovery are presented. Copper recovery was found to increase nonlinearly with time for either pulp density. Copper recovery improved with the decrease of pulp density. For a given specific time, ultrasound enhanced the recovery. This study also shows that the leaching time was reduced by about six times (from 120 to 20 min) to obtain the same Cu recovery when using ultrasound.
ISSN:	1073-5615 1543-1916
DOI:	10.1007/s11663-997-0046-y