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    Simulation and Analysis of Carbon-in-Leach (CIL) Circuits

    Access Status
    Fulltext not available
    Authors
    Wadnerkar, Divyamaan
    Utikar, Ranjeet
    Tade, Moses
    Pareek, Vishnu
    Date
    2012
    Type
    Conference Paper
    
    Metadata
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    Citation
    Wadnerkar, D. and Utikar, R. and Tade, M. and Pareek, V. 2012. Simulation and Analysis of Carbon-in-Leach (CIL) Circuits, in Karimi, I.A. and Srinivasan, R. (ed), Proceedings of the 11th International Symposium on Process Systems Engineering, Jul 15-19 2012, pp. 1206-1210. Singapore: Elsevier.
    Source Title
    Computer Aided Chemical Engineering
    Source Conference
    11th International Symposium on Process Systems Engineering
    DOI
    10.1016/B978-0-444-59506-5.50072-9
    ISBN
    978-0-444-59505-8
    School
    Department of Chemical Engineering
    URI
    http://hdl.handle.net/20.500.11937/43898
    Collection
    • Curtin Research Publications
    Abstract

    Carbon in leach (CIL) is an important process in gold processing involving simultaneous leaching and adsorption. The process holds the key to profitability in gold extraction. While the mechanism of leaching and adsorption are well known, the effect of different operating and design parameters on the CIL circuit performance is still empirical. The focus of this paper is to study the effect of parameters like cyanide concentration, oxygen concentration and mean particle diameter on the overall efficiency of CIL circuit. A dynamic model based on first principles is developed for the entire CIL circuit. Suitable kinetic models for both leaching and adsorption are adopted from the literature. Customizable simulator is written in MATLAB to simulate the model. Simulation results are first validated using previously published results. The validated model is then used to perform sensitivity studies on different parameters that affect the gold extraction process. The model can be used for controlling the operating parameters and to optimize the CIL circuit in order to achieve higher efficiency.

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    • Modeling and optimization of Carbon in leach (CIL) circuit for gold recovery
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      Carbon in leach (CIL) is an important step in gold processing that involves simultaneous adsorption and leaching. While the mechanism of leaching and adsorption are well known, the effect of different operating and design ...
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      A CIL circuit is a process of continuous leaching of gold from ore to liquid using a counter-current adsorption of gold from liquid to carbon particles in a series of tanks. It concentrates gold from 2.5-3.5 g/t in ore ...
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      © 2016 TAPPI Press. All rights reserved. Curtin University’s Gold Technology Group has developed an online CIP/CIL simulation model called SIMCIL which has been used since 1999 to model and simulate industrial leach-adsorption ...
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