copper ore concentration optimal control
Optimal control of a rougher flotation process based on …
Fig. 9 shows the optimal sequences obtained from solving the optimization problem for different desired final Cu concentrate grades L ^ CC.Because almost all the copper minerals are recovered in the first three flotation banks, as shown in Fig. 9 (d), the Cu feed streams to the last two banks consist of low Cu grade streams (see Fig. 9 (b)) …
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Leaching Kinetics of Cu from Low-Grade Oxidized Copper Ore …
Low-grade oxidized copper ore with a high alkaline gangue content is considered refractory due to its high CaO and MgO content, which leads to significant sulfuric acid consumption during leaching and environmental pollution from the ammonia leaching process. In this study, an aqueous solution of ethylenediaminetetraacetic acid …
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(PDF) Optimal Scheduling of Copper Concentrate …
We propose a continuous-time scheduling model for the logistic and blending operations of copper concentrates with uncertain composition.
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Experimental and Kinetic Modeling Investigation of Copper …
Abstract In the present work, the leaching behavior of copper from an oxide/sulfide ore was assessed in two work phases including process optimization and kinetics modeling. In the first phase, the individual and synergistic impacts of the influential parameters such as sulfuric acid concentration, liquid/solid ratio, pulp mixing rate, …
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Optimizing the Rougher Flotation Process of Copper Ore
This paper focuses on optimizing the parameters of the copper ore flotation process, which is the most expensive in obtaining copper concentrate, in order to …
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State of the art in copper hydrometallurgic processes control
For each of these a base case was developed which aimed to represent the relevant current control structure, assuming optimal tuning. ... The most common commercial application of these processes is in the copper industry (Kordosky, 1992). Although oxide ore is preferred in leaching mineralisation, many operations also leach sulphide ores as ...
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Combined Effect of Operating Parameters on …
This study aims to investigate the effects of operational variables on concentrate grade, recovery, separation efficiency, and kinetic parameters of the copper flotation process. For this purpose, the effects …
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The energy needed to concentrate minerals from common …
The specific energy for the concentration of copper from Thanatia is a function of the hardness of the ore, represented by the Bond Index (Wi) and the …
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Minerals | Free Full-Text | Parametric Optimization in …
The dominant challenge of current copper beneficiation plants is the low recoverability of oxide copper-bearing minerals associated with sulfide type ones. Furthermore, applying commonly used conventional methodologies does not allow the interactional effects of critical parameters in the flotation processes to be investigated, …
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Plant-wide optimization of a copper smelter: how to do …
Abstract. Optimizing complex industrial processes, such as copper smelting, accurately has proven to be chal-lenging with traditional methods. The process includes combinations …
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Tempo of magma degassing and the genesis of porphyry copper …
Porphyry deposits are copper-rich orebodies formed by precipitation of metal sulphides from hydrothermal fluids released from magmatic intrusions that cooled at depth within the Earth's crust.
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Metals Special Issue: A Review of the Cyanidation Treatment of Copper
The goal of the present work was to study the recovery of copper, nickel, and platinum group metals (PGMs) (Pt and Pd) from low-grade copper–nickel ore containing pyrrhotite, pentlandite, and ...
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Copper Overview: From the Ore to the …
Copper is a metal that is widely used in different applications mainly due to its thermal and electrical conductivities, together with its corrosion resistance, particularly when it is alloyed. This chapter …
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Intelligent optimal control system for ball mill grinding …
Keywords: Intelligent optimal control; Fuzzy control; Rule-based reasoning; Grinding process; Particle size 1 Introduction The grinding process is a run-of-mine ore size reduction operation used in the mineral industry to liberate the valu-able minerals to be recovered by subsequent beneficiation processes.
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Optimal design and planning of heap leaching process.
1. Introduction. Heap leaching is a hydrometallurgical process that is widely used in the mining industry, in which low-grade metals, such as copper, gold, silver and uranium, are extracted; the process also has new applications in the treatment of non-metallic minerals, such as saltpeter (Valencia et al., 2008), and soil remediation …
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Optimal scheduling of copper concentrate operations under uncertainty
In this article, we optimize the logistic and blending operations of a copper smelting process, which is the first step of the refining process in the copper value-added chain shown in Fig. 1. Copper concentrates are solid materials obtained from copper ores that undergo a concentration process.
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A New Heterotrophic Strain for Bioleaching of Low Grade Complex Copper Ore
A new heterotrophic strain, named Providencia sp. JAT-1, was isolated and used in bioleaching of low-grade complex copper ore. The strain uses sodium citrate as a carbon source and urea as a nitrogen source to produce ammonia. The optimal growth condition of the strain is 30 °C, initial pH 8, sodium citrate 10 g/L and urea 20 g/L, under …
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Optimized control strategy for concentrate copper grade in …
Optimized control strategy for concentrate copper grade in copper flotation process based on data mining and NSGA-II. Publisher: IEEE. Cite This. PDF. Haotian Nie; Zhiqiang …
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Advanced Control Optimization in Copper Concentrators for …
Our control strategy has been developed, tested and implemented in various areas of a copper concentration plant. The targets for implementing advance process …
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Optimizing the Leaching Parameters and Studying the Kinetics of Copper
The study of copper (Cu) recovery is crucial for the entire recovery process of waste printed circuit boards (WPCBs), and Cu can be leached efficiently via a sulfuric acid–hydrogen peroxide (H2SO4–H2O2) system. To achieve high Cu recovery, it is important to evaluate the parameters of the leaching process and understand the Cu …
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Copper recovery from copper slags through flotation …
1. Introduction. Copper plays a vital role in modern life, which is irreplaceable for daily infrastructure and technologies [1], [2].However, despite the finite copper resources on the Earth, global copper production continued increasing over the past century [3], [4].Although we are far from approaching geological stocks for potentially …
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1 Froth Flotation – Fundamental Principles
This means that 95.7% of the copper present in the ore was recovered in the concentrate, while the rest was lost in the tailings. (c) The % Cu Loss can be calculated by subtracting the % Cu Recovery from : % Cu Loss = 100 – 95.7 = 4.3% This means that 4.3% of the copper present in the ore was lost in the tailings.
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X-ray Computed Tomography Evaluation of Crushed Copper Sulfide Ore …
Request PDF | X-ray Computed Tomography Evaluation of Crushed Copper Sulfide Ore for Pre-concentration by Ore Sorting | A large portion of the energy consumed in copper concentrators is used to ...
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(PDF) Investigation of flotation parameters for copper recovery …
Potassium ethyl xanthate has been reported to have enhanced hydrophobicity and promotion of bubbles in the flotation of low-grade copper ore [10, 22]. It has been reported that the total loss of ...
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Oman's Copper Concentration Project Aims To …
Read also: Muscat International Airport Announces Completion of Southern Runway Renovation Construction The Copper Concentration Project in Oman is Conveniently Located for Optimal Production. The copper concentration project in Oman covers a total area of approximately 80 km 2.Thanks to its location, approximately 160 …
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Copper Mining and Processing: Processing Copper Ores
Copper processing is a complicated process that begins with mining of the ore (less than 1% copper) and ends with sheets of 99.99% pure copper called cathodes, which will ultimately be made into products for everyday use.The most common types of ore, copper oxide and copper sulfide, undergo two different processes, hydrometallurgy and …
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Optimal control strategy of working condition transition for copper
1. Introduction. As a main production method employed for extracting copper from its sulphide ore, the copper flash smelting process is widely used throughout the world, which accounts for about 50% of global capacity for primary copper production (Najdenov, Raić & Kokeza, 2012).The complexity and variety of the copper flash …
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Efficient Acid Leaching of Low Carbonate Copper Oxide Ore: …
Harichandan and Mandre 13 used sulfuric acid with concentrations of 1 M and 3 M for the leaching of a mixed oxide-sulfide copper ore containing 67.19% SiO 2 and considered the concentration of 1 M as the optimal acid concentration. They concluded that the leaching efficiency increased with increasing the leaching time to 120 min, and it …
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(PDF) Agglomeration and leaching behaviors of …
The chemical binder is one of the critical factors affecting ore agglomeration behavior and leaching efficiency. In this study, we investigated the effect of the type of binder and mass fraction ...
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A comprehensive study of the leaching behavior and …
dissolution of copper oxide ore. Figure 3. E ect of sulphuric acid concentration on the dissolution of copper oxide ore. ratio of 10 mL/g is found to be optimal for leaching of copper using H2SO4. This can be explained in a way that the leaching agent is in excess of the calculated amount for the extraction of copper. After 75 min of
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