electrowinning energy consumption platinum

electrowinning energy consumption platinum

PLATIRUS PGM Recycling

2021-10-14  The process has a low energy consumption, for example ~2-6 kWh kg –1 of materials recovered, when compared with electrowinning platinum from chloride media reported at 21 kWh kg –1 platinum . Finally, it is efficient, i.e. 50% current efficiency for the formation of the reactive intermediates that fully react with the metal precursors to ...

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Health and environmental impacts of gold and platinum ...

2014-9-9  Dust, energy consumption Energy and water consumption, slurry of fine rock and chemicals deposited on slimes dams. Dust, water pollution Smelting and refining Recovering platinum from concentrate Air pollution (dust, sulphur dioxide). Energy consumption (electric arc

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Energy Efficiency of Electrowinning SpringerLink

2017-11-2  Energy, especially electrical, is often the highest cost for electrowinning operations. Therefore, energy efficiency is a paramount concern for modern facilities. This chapter discusses electrical energy consumption in aqueous electrowinning with a specific focus on cell voltage and current efficiency. It also presents potential improvements.

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Energy efficient copper electrowinning and direct ...

2019-1-10  The energy consumption in the industrial solution when no stirring is applied is low when compared with previous reports on electrowinning from dilute wastewaters (Gorgievski et al., 2009, Cooper and Mishra, 1987, Peng et al., 2011) and on par with actual industrial EW values (Schlesinger et al., 2011). This result confirms that the presence of ...

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Estimates of Electricity Requirements for the Recovery of ...

2011-9-27  produced by the energy source used to generate electricity consumed by a mining operation. For example, burning coal produces over 50 percent more carbon/kWh than natural gas (CCL, 2011); (4) estimate the power requirements for a sector of the minerals industry by commodity or

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(PDF) Gold electrowinning from diluted cyanide liquors ...

efficiency is increased fro m 0.7% to 1.1% and the energy consumption dro ps from 140 kWh kg-1 to about 60 kWh kg -1 . T his behaviour should be due to the increase in the

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(PDF) Electrowinning of copper from sulfate electrolyte in ...

Overall copper recovery was reached to 82.14% from ROM samples and average power consumption and efficiency for copper extraction by electrowinning process was 6.78

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AN INVESTIGATION OF THE ELECTROWINNING OF

2016-6-14  In electrowinning tests, copper deposits from the lead anode cell showed the presence of lead oxide. Furthermore, it was observed that, despite both mesh anodes (DSA 1 and DSA 2) exhibiting the lowest total energy consumption, they had the highest energy consumption per kilogramme of copper produced. The DSA 1 plate anode had the

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Electrorefining of Copper

2007-6-21  specific energy consumption. These factors are influenced primarily by anode quality, electrolyte conditions and cathode current density. • Figure 6.3.2. Typical flow sheet for a copper refinery. The process for electrorefining copper is typical of those carried out in aqueous solution.

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Aqueous electrowinning of metals - VINING; PAUL H.

An improved process for aqueous electrowinning of metals, using methanol (or another soluble fuel) added to the electrolyte, a catalytically active platinum mesh or platinum-plated titanium anode and periodic current reversal, in order to maintain a low anodic potential, and hence, a cell voltage and energy consumption lower than in conventional processes.

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Energy Efficiency of Electrowinning Request PDF

Electrowinning of nonferrous metals such as copper, zinc, nickel and cobalt consumes a lot of electric energy, and the reduction of energy consumption is an important issue from environmental ...

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emew Power Consumption

2016-10-17  A common question we get here at emewCorporation is: “What is the power consumption of emew electrowinning technology”. This is a very important question because power consumption is one of most significant costs involved in electrowinning, regardless of whether it is conventional or emew.

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(PDF) Electrowinning of copper from sulfate electrolyte in ...

Overall copper recovery was reached to 82.14% from ROM samples and average power consumption and efficiency for copper extraction by electrowinning process was 6.78 kwh/kg and 72.23% respectively ...

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Estimates of Electricity Requirements for the Recovery of ...

2011-9-27  produced by the energy source used to generate electricity consumed by a mining operation. For example, burning coal produces over 50 percent more carbon/kWh than natural gas (CCL, 2011); (4) estimate the power requirements for a sector of the minerals industry by commodity or

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Gold electrowinning from aqueous–alcoholic thiourea ...

2000-3-1  Energy consumption E s was calculated according to Eq. (7): (7) E s =100qE cell /mf (kW h kg −1) where q is the electric charge (kA h), E cell is the cell voltage (V), m is mass of metal deposited (kg) and f is the current efficiency (%).

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Energy Saving in Copper Electrowinning - OneMine

1997-1-1  "The energy consumption of copper production by electrowinning, generally represents more than 1/4 of the total energy requirement in hydrometallurgical traditional process (roasting, leaching, purification and electrowinning). The considerable saving can be achieved just in this step that requires about 2.2 kWhlkg of the produced copper.

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SX EW Capital Operating Cost of Solvent Extraction ...

2017-4-27  Power Consumption. The electrowinning process is power intensive, thus, current efficiency is very important, especially where power costs are high or where a more efficient use of power yields increased copper production. Current efficiencies in

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Effect of doping Bi on oxygen evolution potential and ...

2009-3-31  The energy consumption of the zinc electrowinning process represents about 80% of the entire electric power used in the extraction of zinc by hydrometallurgical methods [1−2]. Anode is the key equipment of the electrowinning process, which influences energy

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Electrorefining of Copper

2007-6-21  specific energy consumption. These factors are influenced primarily by anode quality, electrolyte conditions and cathode current density. • Figure 6.3.2. Typical flow sheet for a copper refinery. The process for electrorefining copper is typical of those carried out in aqueous solution.

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emew Power Consumption

2016-10-17  A common question we get here at emewCorporation is: “What is the power consumption of emew electrowinning technology”. This is a very important question because power consumption is one of most significant costs involved in electrowinning, regardless of whether it is conventional or emew.

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An Explanation for Zinc Electrowinning Process

2021-6-29  The electrical energy consumption in the electrowinning process is approximately 80% of the power requirement for the entire zinc refinery process. The electrowinning process is operated under constant current density, therefore, the EW cell potential determines the energy consumption

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Electrowinning Anodes - ULTRANODE

In the electrowinning industry, lead dioxide anode and Mixed Metal Oxide (MMO) anode are the two common choices. However, the lead dioxide anode are found of these disadvantages: heavy environmental pollution, high energy consumption, fragile, lead

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Supplementary Information - RSC

2013-12-11  The electrowinning was carried out in an aqueous solution of 40 g/L CuSO. 4 and 150 g/L H 2SO 4 at ambient temperature of 20°C. So the Cu2+ concentration was 0.25mol/L. Magnetic stirring was used to improve the mass transport. 5. Energy consumption in copper electrowinning The cell potential of the copper electrowinning with oxygen evolution ...

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Energy efficient copper electrowinning and direct ...

Energy efficient copper electrowinning and direct deposition on carbon nanotube film from industrial wastewaters Pyry-Mikko Hannula a, Muhammad Kamran Khalid a, Dawid Janas b, Kirsi Yliniemi a, Mari Lundstrom€ a, * a Aalto University School of Chemical Engineering, P.O. Box 16100, 00076 Aalto, Finland b Silesian University of Technology, Department of Chemistry, B. Krzywoustego 4, 44-100 ...

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Effect of doping Bi on oxygen evolution potential and ...

2009-3-31  The energy consumption of the zinc electrowinning process represents about 80% of the entire electric power used in the extraction of zinc by hydrometallurgical methods [1−2]. Anode is the key equipment of the electrowinning process, which influences energy

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A Mathematical Model of a Zinc Electrowinning Cell

2010-9-7  energy used by the process CE P 81974.V CE Conductivity and density correlations Conductivity (20 ) ( 21) The conductivity of the solution has a significant effect on the cell voltage and therefore on power consumption. A fundamental mechanistic model was viewed as unnecessary and a simpler correlation H

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Energy Efficiency Copper Hydrometallurgy

2020-8-20  Energy Consumption vs. Head Grade 0 10,000 20,000 30,000 40,000 50,000 60,000 70,000 80,000 90,000 0.00% 0.25% 0.50% 0.75% 1.00% 1.25% 1.50% Ore Head Grade (% Cu) Cu) ROM Leach SXEW Crush Leach SXEW SABC Smelt HPGR Smelt SABC HT Con-Leach SABC MT Con-Leach HPGR MT Con-Leach Total energy consumption as a function of ore head grade for various ...

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Nickel Cobalt Electrowinning

2017-8-11  Under conditions similar to those for the nickel electrowinning, cobalt was electrowon with lower electrical energy consumption rates and higher current efficiencies than nickel, so that recommended pilot plant parameters for a 5-g/l extraction per pass

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2.0 Activation Overpotential - IIT Kanpur

2015-6-30  electrode. For example, in copper electrowinning, we would define rate in terms of Cu2+. To define the rate of consumption of Pn+ ions, conduct a mass balance on a small control volume adjacent to the cathode (see Fig. 2.3). The left face of the control volume is slightly inside the cathode. Fig. 2.3.

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