per ton cost of production for copper sulphide ore extraction grinding stages pmt


Copper extraction - Wikipedia

Until the latter half of the 20th century smelting sulfide ores was almost the sole means of producing copper metal from mined ores (primary copper production).Davenport et al noted in 2002 that even then 80% of global primary copper production was from copper–iron–sulfur minerals and that the vast majority of these were treated by smelting.

Mining by Nuclear Explosives Fracturing

50000/12000 = 4.17 pounds of copper per ton of solution. To the 4.17 pounds must be added that in the tail water (0.04) and the loss in smelting (0.07). The required copper content for feed water to the plant must then be 4.28 pounds of copper per ton of water.

Copper Recovery by Solvent Extraction Techniques

Assuming total labor costs of about $24 per ton of copper produced the overall operating costs of solvent extraction plus electrowinning can be as low as $72 per ton of copper. For cement copper production freight and smelting charges alone usually exceed this figure. In addition acid consumption in the cementation process exceeds that in solvent extraction/electrowinning by about 1.5 tons for every ton of copper extracted and it is possible for the consumption of iron to be as high as 4 ...

Energy Use in Metal Production - Publications

Energy is consumed at all stages in the production of primary metals – mining beneficiation ... more ore to be mined per unit of ... production* Copper 8pyro 80 15 ...

Treatment of Mixed Sulfide Oxide Ores of Copper

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Copper Concentrates - Cargo Handbook - the world's largest ...

Copper is processed in several stages from extraction and crushing of the ore to electrolytic refining which allows obtaining 99.99% pure Copper Cathodes. The beginning for all copper is to mine sulfide and oxide ores through digging or blasting and then crushing it to walnut-sized pieces. Crushed ore is ball or rod-milled in large rotating ...

Determining the optimum cut-off grades in sulfide copper deposits

T $: Thousand dollars TT: Thousand ton T p: Ton of product T o: Ton of ore T m: T on of material The ore mineralogy demonstrates that this mine contains of primary and secondary copper sulfide ...

Effect of low grade copper ore on process control and costing ...

82-83 0.860 3137 0.0120 0.0370 48.00 per set. 83-84 0.820 2900 0.0190 27.00 0.0270 3500 1 Set = 19 MT. From the table it is clear that the price escalation of materials has a direct impact on production cost. Though the cost of the production can be brought down by high production but there is a limit of capacity.

Copper Flotation - 911 Metallurgist

Because the copper in this type of ore usually assays only plus or minus 1% copper the porphyry copper operations must be relatively large in order to be commercial. The flowsheet in this study illustrates a typical 3000 ton per day operation. In general most operations of this type have two or more parallel grinding and flotation circuits ...

Copper sulphide smelting: Past achievements and current ...

In the copper production as a major consumer of energy from ore to the cathode copper the optimal amount of energy is needed to be 35 t ee /t cc [19] bearing in mind that in some parts of ...

Chapter 7 Energy Use in the Copper Industry

grinding media). In 1977 the primary copper in-dustry purchased 121trillion Btu of energy or around 85 miIlion Btu per short ton of cathode copper produced.] This compares to around 15 million Btu/ton for iron mining and steel produc-tion 24 million Btu/ton for lead production and 64 million Btu/ton for zinc

Copper Mining and Extraction Sulfide Ores

Copper mines are only set up where there is more than 5 kg of copper per tonne of rock (0.5% by mass). Ideally the figure should be closer to 2%. The world’s largest copper ore deposits are found in Chile on the west coast of South America.

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per ton cost of production for copper sulphide ore extraction grinding stages pmt