# A comprehensive copper stockpile leach model: background and model formulation

Bennett, C.R., Cross, M., Croft, T.N., Uhrie, J., Green, C. and Gebhardt, J.
(2003)
*A comprehensive copper stockpile leach model: background and model formulation.*
In: Hydrometallurgy 2003. Proceedings of the Fifth International Conference. Honoring Professor Ian M. Ritchie.
TMS (The Minerals, Metals & Materials Society), Pennsylvania, USA, pp. 315-328.
ISBN 0873395549

## Abstract

The first phase in the sign, development and implementation of a comprehensive computational model of a copper stockpile leach process is presented. The model accounts for transport phenomena through the stockpile, reaction kinetics for the important mineral species, oxgen and bacterial effects on the leach reactions, plus heat, energy and acid balances for the overall leach process. The paper describes the formulation of the leach process model and its implementation in PHYSICA+, a computational fluid dynamic (CFD) software environment. The model draws on a number of phenomena to represent the competing physical and chemical features active in the process model. The phenomena are essentially represented by a three-phased (solid liquid gas) multi-component transport system; novel algorithms and procedures are required to solve the model equations, including a methodology for dealing with multiple chemical species with different reaction rates in ore represented by multiple particle size fractions. Some initial validation results and application simulations are shown to illustrate the potential of the model.

Item Type: | Conference Proceedings |
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Title of Proceedings: | Hydrometallurgy 2003. Proceedings of the Fifth International Conference. Honoring Professor Ian M. Ritchie |

Additional Information: | [1] This paper was first presented at the Fifth International Conference on Hydrometallurgy 2003, in honour of Professor Ian Ritchie. [2] The published paper is printed within Volume 1: Leaching and Solution Purification. [3] ISBN: 0873395549 (TMS publication); 9781118804490 (Wiley E-book publication) |

Uncontrolled Keywords: | PHYSICA+, copper stockpile leach model, computational modelling |

Subjects: | Q Science > QA Mathematics > QA76 Computer software T Technology > TJ Mechanical engineering and machinery T Technology > TP Chemical technology |

Pre-2014 Departments: | School of Computing & Mathematical Sciences School of Computing & Mathematical Sciences > Centre for Numerical Modelling & Process Analysis School of Computing & Mathematical Sciences > Centre for Numerical Modelling & Process Analysis > Computational Science & Engineering Group |

Related URLs: | |

Last Modified: | 14 Oct 2016 09:01 |

URI: | http://gala.gre.ac.uk/id/eprint/735 |

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