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simulation of heap leaching

Heap Leaching Simulation ScienceDirect

1998-9-1  SIMULATION OF A HEAP LEACHING EXPERIMENT The heap is percolated with fresh lixiviant pumped fram the raffinate pond. The output of the heap is the PLS, stored in the PLS Pond. The Solvent-extraction and Electra-winning (SX-EW) are substituted with a simple reactor followed by a phase-splitter unit. This block has assigned as an output the

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(PDF) Heap Leaching Simulation ResearchGate

After simulation of various gold recovery methods, such as agitation leaching and heap leaching, as well as precipitation methods, such as the CIC- and the CIL-processes, recommendations

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Heap leaching. Computer simulation as an alternative

2015-7-1  As stated above, the computer simulation of the leaching process allows us to see what happens with the substances participants in the thickness of the heap. The Fig. 2 shows the fixed moment of time equal to 500 hours from the beginning of the heap irrigation, as

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Simulation of ore heap leaching using deterministic

1992-6-1  Consequently, the maximum pressure gradient, APH (max~/H, and maximum air convection ve- SIMULATION OF ORE HEAP LEACHING USING DETERMINISTIC MODELS 257 locity, ,Ug (max), decline as heap size, H, increases. The problem is similar to that of inducing smoke to rise from a fireplace with a tall, narrow chimney.

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Look before you leach: Dynamic Simulation of Heap

SysCAD is a specialised process simulation software package, widely used in the minerals industry for flowsheet modelling. A dynamic model was initially developed for evaluation of a nickel laterite heap-leach in conjunction with an existing pressure leach operation.

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Jämsä-Jounela, Sirkka-Liisa; Cziprian, Z. Heap leaching

simulation Of the copper heap leaching process. The percolation liquid is assigned as an input, and the PLS is considered the output Of this model. The PLS is a solution with the metal content, usually 5-10 gram/litre. The heap leaching process involves heterogeneous chemical reactions on the mineral surface catalysed with bacterial activity.

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Simulation of heap leaching process in a bed of porous

2007-8-14  – The purpose of this paper is to apply the numerical methods to study the heap leaching process in a bed of porous and spherical ore particles. This study is performed in two stages: first, modeling the leaching process of a soluble mineral from a spherical and porous ore particle to obtain the distribution of mineral concentrations, leaching solvent concentration and dissolved mineral in

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(PDF) SIMULATION OF GOLD HEAP LEACHING FOR

SIMULATION OF GOLD HEAP LEACHING FOR CRITERIA OF SUSTAINABILITY TARGETS R.C. Villas Bôas* and L.R.P. de Andrade Lima** *Center for Mineral Technology, Rua 4, Quadra D, Ilha do Fundão Rio de Janeiro, RJ, Brazil, 21941-590 **Polytechnic School, Federal University of Bahia, Rua Aristides Novis, 2, Federação Salvador, BA, Brazil, 40210-630 ABSTRACT Sustainable development principles

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Dynamic experiment and numerical simulation of solute

2007-12-1  Solute transmission in saturated ore heap was studied numerically and experimentally. The convection-diffusion equation (CDE) used to describe the mass transportation in porous media was solved by characteristic difference method to give the distribution of the concentration of ferrous ion in the ore column. To calibrate the computational model, a column test was performed using infiltration

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Optimization of the Heap Leaching Process through

Once the process workflow of heap leaching has been characterized, it is possible to model the heap leach stage sequentially with the Arena simulation software. The update of copper recovery over time is simulated by parametrizing the analytical models retrieved from the literature, and incorporating them into the Arena simulation [ 23 ].

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(PDF) Heap Leaching Simulation ResearchGate

After simulation of various gold recovery methods, such as agitation leaching and heap leaching, as well as precipitation methods, such as the CIC- and the CIL-processes, recommendations

get price

Simulation of heap leaching process in a bed of porous

2007-8-14  – The purpose of this paper is to apply the numerical methods to study the heap leaching process in a bed of porous and spherical ore particles. This study is performed in two stages: first, modeling the leaching process of a soluble mineral from a spherical and porous ore particle to obtain the distribution of mineral concentrations, leaching solvent concentration and dissolved mineral in

get price

(PDF) SIMULATION OF HEAP LEACHING PROCESS BY

The heap leaching experiments have proved the bacterial leaching to give good results on the ore samples passed through magnetic separation, having shown high content of the nickel and copper in

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Heap leaching. Computer simulation as an alternative

2021-3-11  Research paper Heap leaching. Computer simulation as an alternative technology I.N. Groznov a,b,* a Gold Mining Holding “Seligdar”, Aldan, the Republic of Sakha (Yakutia), 678900 Russia b Institute for Energy Problems of Chemical Physics, Russian Academy of Science, 38 Leninsky prosp. Bld.2, Moscow, 119334 Russia Received 5 May 2015; accepted 17 June 2015

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Look before you leach: Dynamic Simulation of Heap

SysCAD is a specialised process simulation software package, widely used in the minerals industry for flowsheet modelling. A dynamic model was initially developed for evaluation of a nickel laterite heap-leach in conjunction with an existing pressure leach operation.

get price

SID.ir SIMULATION OF HEAP LEACHING PROCESS BY

2021-10-1  In this study a mathematical method called PSPD (profile side-pore diffusion) based on the work of Bouffard and Dixon [10] is proposed for simulation of solute transport through the pores of a heap, considering the reaction terms.

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Dynamic Simulation & Heap Leaching Module METSIM

Dynamic Simulation & Heap Leaching Module. Dynamic modeling of flowsheets has been possible for many years, but METSIM ® has not been widely employed in that role. Other dynamic software simulation packages exist, which are targeted more towards the

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Simulation technology to support base metal ore heap

2013-7-18  The heap simulation is based on a detailed computational model of the leaching process. The process chemistry, including reactants in the gas–liquid–solid matrix, gas flow, variably saturated liquid flow, species transport in both phases, heat transport, and biomass growth and catalysis, is accounted for in models that are equally

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Computer simulation of fluid motion in a porous bed using

2006-8-1  Heap leaching is a process extensively used by the mining industry to recover metals from low-grade ores and large quantities of submarginal material resources. Understanding flow through a packed particle bed is important to enhance the performance of heap leaching with respect to design and operating considerations.

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Optimization of the Heap Leaching Process through

The importance of mine planning is often underestimated. Nonetheless, it is essential in achieving high performance by identifying the potential value of mineral resources and providing an optimal, practical, and realistic strategy for extraction, which considers the greatest quantity of options, materials, and scenarios. Conventional mine planning is based on a mostly deterministic approach

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(PDF) Heap Leaching Simulation ResearchGate

After simulation of various gold recovery methods, such as agitation leaching and heap leaching, as well as precipitation methods, such as the CIC- and the CIL-processes, recommendations

get price

(PDF) SIMULATION OF HEAP LEACHING PROCESS BY

The heap leaching experiments have proved the bacterial leaching to give good results on the ore samples passed through magnetic separation, having shown high content of the nickel and copper in

get price

Simulation of heap leaching process in a bed of porous

2007-8-14  Read "Simulation of heap leaching process in a bed of porous and spherical ore particles, International Journal of Numerical Methods for Heat & Fluid Flow" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

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Heap leaching. Computer simulation as an alternative

2021-3-11  Research paper Heap leaching. Computer simulation as an alternative technology I.N. Groznov a,b,* a Gold Mining Holding “Seligdar”, Aldan, the Republic of Sakha (Yakutia), 678900 Russia b Institute for Energy Problems of Chemical Physics, Russian Academy of Science, 38 Leninsky prosp. Bld.2, Moscow, 119334 Russia Received 5 May 2015; accepted 17 June 2015

get price

Dynamic Simulation & Heap Leaching Module METSIM

Dynamic Simulation & Heap Leaching Module. Dynamic modeling of flowsheets has been possible for many years, but METSIM ® has not been widely employed in that role. Other dynamic software simulation packages exist, which are targeted more towards the chemicals industry. These packages use systems of differential and algebraic equations (DAEs

get price

Simulation technology to support base metal ore heap

2013-7-18  The heap simulation is based on a detailed computational model of the leaching process. The process chemistry, including reactants in the gas–liquid–solid matrix, gas flow, variably saturated liquid flow, species transport in both phases, heat transport, and biomass growth and catalysis, is accounted for in models that are equally

get price

Simulation of Bioleaching Heat Effects for Enhancement of

2014-4-24  A number of heap bioleaching models developed before have been reviewed. Among the significant processes that occur in a bioheap are the heat generation and conservation. An analysis of heat conservation for copper sulfide heap leaching has been accomplished with the aid of a computer model. Such analysis is carried out for several reasons.

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(PDF) Mathematical Modelling of Gold Ore Heap Leaching

This paper presents a computational algorithm developed to simulate the temporal evolution of the gold ore heap leaching process. The data used in the model include physical chemical,geometrical

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Advances in high-temperature heap leaching of

2012-12-13  Heap leaching is used extensively for the processing of copper and gold ores, but there has also been renewed interest in uranium ores, as well as recent application to nickel laterites, and more frequently the application of heap leaching needs to be considered as part of a larger process in combination with other leaching steps.

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Optimization of the Heap Leaching Process through

The importance of mine planning is often underestimated. Nonetheless, it is essential in achieving high performance by identifying the potential value of mineral resources and providing an optimal, practical, and realistic strategy for extraction, which considers the greatest quantity of options, materials, and scenarios. Conventional mine planning is based on a mostly deterministic approach

get price

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