Research on Thermodynamic Properties of Bioleaching Solution in Lean Nickel-Cobalt Ore by Pitzer - Meissner Model

Abstract:

In this paper, we jointly use the Pitzer model and the Meissner model to study thermodynamic laws of bioleaching solution in a lean nickel-cobalt ore in the Jilin Baishan, by using the Pitzer model to calculate activity coefficients of single electrolyte aqueous solutions and the Meissner model to calculate activity coefficients of components in the bioleaching solution. Also we studied the rules of activity coefficient of NiSO₄ and CoSO₄ in the solution. Results show that when separating and purifying foreign ions from bioleaching solution of the lean nickel-cobalt ore, the descending sequence of their ion concentration’s effect over the solution is Mg²⁺, Fe³⁺, Fe²⁺, Ni²⁺, Co²⁺ and Ca²⁺.

• Periodical: Advanced Materials Research (Volumes 1092-1093)
• Pages: 1455-1459
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1092-1093.1455
• Online since: March 2015
• Authors: Chu Yue Hou*, Gui Ying Zhou, Jian Kang Wen, Biao Wu
• Keywords: Bioleaching Solution, Lean Nickel-Cobalt Ore, Pitzer - Meissner Model, Thermodynamic Properties

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