Volume 71 Issue 12
Development of a kinetic model of the bacterial dissolution of copper concentrate
Ranjbar, Mohammad; Ranjbar Hamghavandi, Mohammad; Hassan Fazaelipoor, Mohammad; Schaffie, Mahin; Manafi, Zahra
Bioleaching has an increasingly important place among available mining technologies as biological processes have emerged as alternatives for metal recovery, especially for metals like gold and copper. An important disadvantage of bioleaching is the slow reaction rates, with microbial attack times often lasting weeks. Therefore, applicable research is required to improve these rates. From previous research, copper bioleaching has been divided into two specific regimes: (1) surface reaction controlling step and (2) mix of surface reaction and diffusion controlling steps. The presented model, which includes the effects of both these regimes, predicted the results of copper bioleaching recovery with good accuracy.
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