"extraction of copper from sulphide"

Recovery of Copper from Copper Sulfide Concentrate by ...

2015-3-5 · Sulfation roasting was studied to extract copper from the copper sulfide concentrate. Sodium sulfite was added as sulfation agent to the copper sulfide concentrate during roasting in this study. Sulfur removal rate at different roasting temperatures was investigated, and the effects of roasting temperature, roasting time, and the amount of sodium sulfite on copper extraction were studied.

the process of extracting copper from copper sulphide

2017-5-22 · the process of extracting copper from copper sulphide. copper sulfide flotationsummary of the copper extraction process. this flowsheet stresses simplicity without pper electrolytic refining process explained16 apr 2017 . copper sulphide ores, which contain an excess of silica, have been . the test which was made at 100°,c. gave an extraction of 90 per cent,.lecture 14: pyro metallurgical ...

In the extraction of copper from its sulphide ore, the ...

In the extraction of copper from its sulphide ore, when ore is subjected to roasting, some of it is oxidised to Cu2O which reacts with the remaining Cu2S (sulphide ore) to give copper metal.Cu2S +2Cu2O → 6Cu +SO2 ↑In this process, Cu2S behaves as reducing agent.

Extraction of copper from copper sulfides

Having thus fully described the invention, what is claimed is: 1. A process for recovering copper from a sulfidic ore thereof, comprising: mixing and fusing said ore under vacuum in the absence of water, CO 2, and oxygen with at least a stoichiometric amount of a non-saturated sulfide of sodium or potassium at a temperature between about 210°C and 360°C thereby forming a melt of copper metal ...

Explain the steps for extraction of copper from its ...

2017-10-29 · 484 views. asked Oct 29, 2017 in Class X Science by priya12 (-12,165 points) Explain the steps for extraction of copper from its sulphide ore. Write the balanced equations involved in the process.

Direct extraction of copper from copper sulfide minerals ...

2019-11-8 · Direct extraction of copper from copper sulfide minerals using deep eutectic Green Chemistry ( IF 10.182) Pub Date : 2019-11-08, DOI: 10.1039/c9gc03213d Syahrie Anggara, Francesca Bevan, Robert C. Harris, Jennifer M. Hartley, Gero Frisch, Gawen R. T. Jenkin, Andrew P. Abbott

Hydrometallurgical method of extraction of copper from ...

1. A method for extraction of copper from sulphide ores or concentrates by leaching the ore or concentrates by means of iron (III) chloride and copper (II) chloride containing leach solution, characterized in that the leaching process is regulated in order to keep the red-ox potential between 430 mV and 460 mV whereby iron (III) chloride is reduced to iron (II) chloride while copper (II ...

Optimization of parameters affecting recovery of copper ...

2021-9-14 · extraction of copper from low-grade sulfide ores was evaluated in a sample taken from Sarcheshmeh Copper Mine. The aim of this work was to evaluate the parameters affecting the recovery of copper from low-grade sulfide ores such as temperature, pH, and bacterial population during bioleaching. The copper content of the

Extraction of copper from complex carbonaceous sulfide …

2021-9-10 · Extraction of copper from complex carbonaceous sulfide ore by direct high-pressure leaching Minerals Engineering ( IF 4.765) Pub Date : 2021-09-09, DOI: 10.1016/j.mineng.2021.107181

In the extraction of copper from its sulphide ore, the ...

The copper metal is mainly extracted from is sulphide ore copper pyrites (CuFeS2) .The Cup obtained can be reduced to copper by treating with Cu2S.2Cu2S→3O22Cu2O + 2SO2 ... In the extraction of copper from its sulphide ore, the metal is formed by reduction of Cu 2 O with: CO. SO 2.

Bacterial consortium for copper extraction from sulphide ...

2013-10-30 · Regarding this, the bacterial consortium that achieved the greater extraction of copper from sulphulretted ore (Figure 2), was the one that consisted of consortia At. ferrooxidans with At. thiooxidans, making a 70% extraction of copper in the final test. The consortium presented a statistically significant difference from the rest of the tests.

Extraction of copper from sulphides

2016-4-29 · ZIMSEC O Level Combined Science Notes:Extraction of copper from sulphides. The powder is mixed with water and the slurry (porridge) is agitated by passing air through it. Flux is a material used to purge impurities from another metal (copper in this case) during the smelting process.

Environmental effects on bacterial copper extraction from ...

In bacterial extraction of copper from low‐grade copper sulfide ores, at least three contributions are made by Thiobacillus ferrooxidans. They are: (1) enzymatic oxidation and consequent solubilization of insoluble sulfides; (2) regeneration of ferric lixiviant for chemical oxidation and solubilization of insoluble sulfides; and (3) partial fixation of externally introduced iron in the ore.

Recovery of Copper from Copper Sulfide Concentrate by ...

2015-1-17 · Y. M. Zhao et al. 12 However, when 1% Na 2SO 3 was added, the copper extraction wasn''t down until 650 ˚C. This indicated that Na 2SO 3 can improve the degree of sulfating at high temperature. One possible reason is that the addition of Na 2SO 3 could prevent the decomposition of copper sulfate. Another possible reason is the exist of some com-

extraction of metal from sulphide ore metal take copper ...

2020-3-4 · Extraction of metal from sulphide ore metal take copper with reaction - 15763572

US6455019B2

A process for the extraction of copper from a sulphide ore or concentrate comprises the steps of subjecting the ore or concentrate to pressure oxidation in the presence of oxygen and an acidic solution containing halide and sulphate ions to obtain a resulting pressure oxidation slurry. The slurry is subjected to a liquid/solid separation step to obtain a resulting pressure oxidation filtrate ...

Direct extraction of copper from copper sulfide minerals ...

Direct extraction of copper from copper sulfide minerals using deep eutectic solvents By Syahrie Anggara (8255634), Francesca Bevan (7812227), Robert C Harris (8255637), Jennifer M Hartley (8255640), Gero Frisch (1791814), Gawen RT Jenkin (8255643) and Andrew P Abbott (7801853)

Efficient extraction of copper and zinc from seafloor ...

2018-1-1 · Seafloor massive sulphide (SMS) deposits have been identified as important marine metal resources for the future. However, literature on the recovery/extraction of metals from SMS is currently limited, and to date, no research has been published on the processing of SMS from the active hydrothermal vent field at the Arctic Mid-Ocean Ridge.

Bacterial consortium for copper extraction from sulphide ...

2019-5-3 · to copper extraction if sulphide minerals are present in a heap (Watling, 2006). Thus, is important to know whether, for a given process and mineral, if there is one ideal combi-nation of micro-organisms or whether combinations of dif-ferent microbial isolates (or species) are likely to be as

The method of selection, extraction and recovery of nickel ...

The method of selection, extraction and recovery of nickel, cobalt and copper from sulphide flotation concentrate, stimulated by chlorine, by oxidative leaching with sulfuric acid under pressure. C22B3/08 - Sulfuric acid. C22B23 - Obtaining nickel or cobalt. C22B15 - Obtaining copper .

Main Copper Sulphide Extraction Process | Mining Pedia

In the extraction of copper from its sulphide ore, the metal is final…

Extraction of copper from sulphide ore is less favourable ...

2018-1-29 · Extraction of copper from sulphide ore is less favourable than extracting it from its oxide ore through reducing it with carbon or by displacement reactions. This is so because this process is more easy and cheap than purifying it directly from its sulphide ore.

Direct extraction of copper from copper sulfide minerals ...

Direct extraction of copper from copper sulfide minerals using deep eutectic solvents† Syahrie Anggara, a Francesca Bevan, a Robert C. Harris, a Jennifer M. Hartley, ab Gero Frisch, b Gawen R. T. Jenkin c and Andrew P. Abbott * a

Solvometallurgical process for extraction of copper from ...

2019-12-13 · Extraction of copper from sufidic ores, either by pyrometallurgy or hydrometallurgy, has various limitations. In this study, a solvometallurgical process for the extraction of copper from sulfidic ore minerals (chalcopyrite, bornite, chalcocite and …

copper extraction and purification

2015-7-26 · In the copper(I) sulphide, the copper is +1 and the sulphur -2. The oxidation states of the elements oxygen (in the gas) and copper (in the metal) are 0. In sulphur dioxide, the oxygen has an oxidation state of -2 and the sulphur +4. That means that both the copper and the oxygen have been reduced (decrease in oxidation state).

In the extraction of copper from its sulphide ore

2021-7-22 · In the extraction of copper from its sulphide ore Stage 3: roasing at this stage of the process, chemical reactions begin. convert copper ores into copper metal. we can illustrate the process types using the example of chalcopyrite – cufes2. from the formula, it is clear that the iron and sulfur must be removed to produce copper. the roasting process: changes part of the cufes2 to copper ...

Bacterial consortium for copper extraction from sulphide ...

The mining industry is looking forward for bacterial consortia for economic extraction of copper from low-grade ores. The main objective was to determine an optimal bacterial consortium from several bacterial strains to obtain copper from the leach of chalcopyrite. The major native bacterial species involved in the bioleaching of sulphide ore ...

Extraction of copper from complex carbonaceous sulfide …

1. Introduction. The complex carbonaceous sulfide ore is categorized under the sediment-hosted stratiform copper deposits which account for about 20–25% of the world''s copper production and reserves (Hitzman et al., 2005, Misra, 2000).Carbonaceous sulfide ores host polymetallic minerals characterized by carbonates (dolomite, calcite, magnesite, etc.) and carbonaceous materials …