An analytical-numerical method for solving a heap leaching problem of one or more solid reactants from porous pellets

Computers and Chemical Engineering

Volumn 32, Issue 10, 2008, Pages 2395-2402

  Mellado, Mario E ^a   Cisternas, Luis A ^a  

^a UNIVERSIDAD DE ANTOFAGASTA   (Chile)

Author keywords

Analytical solutions; Differential equations; Discontinuous solutions; Heap leaching; Numerical methods

Indexed keywords

BESSEL FUNCTIONS; COMPUTATIONAL FLUID DYNAMICS; DIFFERENCE EQUATIONS; DIFFERENTIAL EQUATIONS; DIFFERENTIATION (CALCULUS); EXTRAPOLATION; IMAGE SEGMENTATION; LEACHING; NUMERICAL ANALYSIS; NUMERICAL METHODS; ORE PELLETS; PELLETIZING; PLASMAS; RATE CONSTANTS; SIZE DISTRIBUTION; SOLUTIONS;

(1 1 0) SURFACE; ANALYTICAL AND NUMERICAL SOLUTIONS; ANALYTICAL SOLUTIONS; ANALYTICAL-NUMERICAL METHOD; DISCONTINUOUS SOLUTIONS; ELSEVIER (CO); GAS PHASE; HEAP LEACHING; KINETIC FACTORS; NUMERICAL ALGORITHMS; NUMERICAL EXPERIMENTS; NUMERICAL METHODOLOGY; NUMERICAL SCHEMES; OPERATION VARIABLES; PARTIAL DIFFERENTIAL; PARTICLE SIZE DISTRIBUTION (PSZ); POROUS PELLETS; RATE-CONTROLLING; REGULARITY CONDITIONS; SOLID REACTANTS;

PARTIAL DIFFERENTIAL EQUATIONS;

EID: 47849111538     PISSN: 00981354     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.compchemeng.2008.01.001     Document Type: Article

References (21)

1. de Andrade Lima L.R.P. A mathematical model for isothermal heap and column leaching. Brazilian Journal of Chemical Engineering 21 (2004) 435-447
2. Bouffard S.C., and Dixon D.G. Investigative study into the hydrodynamics of heap leaching processes. Metallurgical and Material Transactions B 32B (2001) 763-776
3. Bouffard S.C., and Dixon D.G. Evaluation of kinetic and diffusion phenomena in cyanide leaching of crushed and run-of-mine gold ores. Hydrometallurgy 86 (2006) 63-71
4. Boyce, W. E., & Diprima, R. C. (1993). Ecuaciones Diferenciales y Problemas con Valores en la Frontera. Limusa-Noriega Editores.
5. Brenner S.C., and Scott L.R. The mathematical theory of finite element methods (1994), Springer-Verlag
6. Cariaga E., Concha F., and Sepúlveda M. Flow through porous media with applications to heap leaching of copper ores. Chemical Engineering Journal 111 2-3 (2005) 151-165
7. Casas J.M., Martínez J., Moreno L., and Vargas T. Bioleaching model of a copper-sulfide ore bed in heap and dump configurations. Metallurgical and Material Transactions B 29 (1998) 899-909
8. Ciarlet P.G. The finite element method for elliptic problems (1978), North Holland
9. Cross M., Bennett C.R., Croft T.N., McBride D., and Gebhardt J.E. Computational modeling of reactive multi-phase flows in porous media: Applications to metals extraction and environmental recovery processes. Minerals Engineering 19 (2006) 1098-1108
10. Dixon D.G., and Hendrix J.L. A mathematical model for heap leaching of one or more solid reactants from porous ore pellets. Metallurgical Transactions 24B (1993) 1087-1102
11. Dixon D.G., and Hendrix J.L. General model for leaching of one or more solid reactants from porous ore pellets. Metallurgical Transactions 24B (1993) 157-168
12. Hackbusch W. Elliptic differential equations (1992), Springer-Verlag
13. Kesavan S. Topics on functional analysis and applications (1989), John Wiley and Sons
14. Kufner A., John O., and Fucik S. Function spaces (1977), Academia, Prague
15. Lizama H.M., Harlamovs J.R., McKay D.J., and Dai Z. Heap leaching kinetics are proportional to the irrigation rate divided by heap height. Minerals Engineering 18 (2005) 623-630
16. Mousavi S.M., Jafari A., Yaghmaei S., Vossoughi M., and Sarkomaa P. Computer simulation of fluid motion in a porous bed using a volume of fluid method: Application in heap leaching. Minerals Engineering 19 (2006) 1077-1083
17. Sheikhzadeh G.A., Mehrabian M.A., Mansouri S.H., and Sarrafi A. Computational modelling of unsaturated flow of liquid in heap leaching-Using the results of column tests to calibrate the model. International Journal of Heat and Mass Transfer 48 (2005) 279-292
18. Sidborn M., Casas J., Martinez J., and Moreno L. Two-dimensional dynamic model of a copper sulphide ore bed. Hydrometallurgy 71 (2003) 67-74
19. Stoer J., and Bulirsch R. Introduction to numerical analysis (1996), Springer-Verlag
20. Wu A.-X., Liu J.-Z., and Tang L.-Y. Simulation of coupled flowing-reaction-deformation with mass transfer in heap leaching processes. Applied Mathematics and Mechanics 28 (2007) 327-335
21. Zienkiewicz, O. C., & Taylor, R. L. (2000). The finite element method (Vols. I-III). Butterworth-Heinemann.