secondary copper ore recovery

secondary copper ore recovery

Precious metal recoveries in secondary copper smelting ...

Dec 31, 2019  The recovery of precious metals from the WEEE is currently performed in copper-making circuits including copper smelters, converters and secondary (black) copper smelters. Black copper smelting is typically implemented for low-grade copper scrap, which may be highly oxidized and includes a wide range of impurities, typically lead, tin, zinc ...

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BACKGROUND REPORT SECONDARY COPPER SMELTING,

Secondary copper recovery is divided into four separate operations: scrap pretreatment, smelting, alloying, and casting. Pretreatment includes the cleaning and consolidation of scrap in preparation for smelting. Smelting consists of heating and treating the scrap for separation and

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AN INVESTIGATION OF COPPER RECOVERY FROM A

Current copper deposits contain significant amounts of secondary non-sulphide minerals and newly discovered deposits are increasingly complex. As a result, research into the improvement of sulphide-oxide copper ores processing through the use of mixed collector systems has surged.

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The recovery of oxide copper minerals from a complex ...

Mar 01, 2017  The ore deposit contains both primary and secondary copper minerals and is therefore classed into three distinct types, viz. sulphide, oxide and mixed. The mixed ore contains oxide, supergene oxide and hypogene sulphide copper species respectively with the greater part of the deposit being made up of sulphide and mixed ores.

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RECOVERY OF COPPER FROM OXIDE COPPER ORE BY

RECOVERY OF COPPER FROM OXIDE COPPER ORE BY FLOTATION AND LEACHING Kiraz, Emirhan M.S., Department of Mining Engineering Supervisor: Prof. Dr. Mustafa Ümit Atalay December 2014, 65 pages The aim of this study was the recovery of copper from the oxide copper ore by froth flotation and agitating sulphuric acid (H 2 SO 4) leaching.

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(PDF) A Review of the Flotation of Copper Minerals

The recovery of these copper minerals by flotation or hydrometallurgy from ores, typically containing 0.5%TCu (open pit mines) and 1-2%TCu (underground mines) is of great commercial importance.

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Copper extraction - Wikipedia

Sulfide ores. Secondary sulfides – those formed by supergene secondary enrichment – are resistant to sulfuric leaching.These ores are a mixture of copper carbonate, sulfate, phosphate, and oxide minerals and secondary sulfide minerals, dominantly chalcocite but other minerals such as digenite can be important in some deposits.. Supergene ores rich in sulfides may be concentrated using ...

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Precious metal recoveries in secondary copper smelting ...

Dec 31, 2019  The recovery of precious metals from the WEEE is currently performed in copper-making circuits including copper smelters, converters and secondary (black) copper smelters. Black copper smelting is typically implemented for low-grade copper

More

BACKGROUND REPORT SECONDARY COPPER SMELTING,

Secondary copper recovery is divided into four separate operations: scrap pretreatment, smelting, alloying, and casting. Pretreatment includes the cleaning and consolidation of scrap in preparation for smelting. Smelting consists of heating and treating the scrap for separation and

More

Study on Recovery of Associated Copper Oxide Ore by ...

In most copper oxide ores, in addition to copper oxide minerals, there are usually a small amount of natural copper and copper oxide minerals. The leaching of the latter two types requires the participation of oxygenCompared with secondary sulfide ore. , copper ore

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(PDF) The recovery of oxide copper minerals from a complex ...

This paper describes investigations to increase the flotation recovery of copper from ores containing both primary and secondary copper minerals. An increase in the flotation recovery of copper is ...

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Copper extraction - Wikipedia

Sulfide ores. Secondary sulfides – those formed by supergene secondary enrichment – are resistant to sulfuric leaching.These ores are a mixture of copper carbonate, sulfate, phosphate, and oxide minerals and secondary sulfide minerals, dominantly chalcocite but other minerals such as digenite can be important in some deposits.. Supergene ores rich in sulfides may be concentrated using ...

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Copper Ore Types: Sulfides vs. Oxides An Investor's ...

As with oxide ores, SX-EW tech is used to recover copper from a pregnant leach solution. Secondary sulfides, which are formed by supergene secondary enrichment, are resistant to sulfuric leaching ...

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v118n11a5 Relationship between ore mineralogy and copper ...

Relationship between ore mineralogy and copper recovery across different processing circuits at Kansanshi mine by L. Little, Q. Mclennan, A. Prinsloo, K. Muchima, B. Kaputula, and C. Siame .8;47>7 The variability of copper mineralization at Kansanshi mine significantly affects the efficiencies of the processes used to recover copper. Quantifying

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Copper Flotation - Mineral Processing Metallurgy

Mar 19, 2017  Porphyry copper ores, usually medium to medium hard, require grinding to about 65-mesh to economically liberate the copper minerals from the gangue. Although a clean rougher tailing can often be achieved at 65-mesh the copper mineral is not liberated sufficiently to make a high grade copper concentrate, thus some form of regrinding is necessary ...

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Recent Developments in Copper Hydrometallurgy

• GPS ore control • Leach recovery optimization ... Secondary sulfide and oxide ores Primary sulfide ores Mine Flotation Leaching Refining Smelting Rod Mill or Customer SX EW. 23 ©2006 Phelps Dodge Corporation ... Copper recovery slightly higher than smelting and refining.

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Recovery of Copper from Copper Sulfide Concentrate by ...

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-

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AN INVESTIGATION OF COPPER RECOVERY FROM A

Current copper deposits contain significant amounts of secondary non-sulphide minerals and newly discovered deposits are increasingly complex. As a result, research into the improvement of sulphide-oxide copper ores processing through the use of mixed collector systems has surged.

More

US4269622A - Recovery of precious metals from difficult ...

ore copper recovery Prior art date 1979-12-28 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number US06/108,168 Inventor Bernard J.

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US6319389B1 - Recovery of copper values from copper ores ...

Copper values are efficiently recovered from a copper ore, including secondary sulfides, by first crushing the ore to a particle size P-80 of about 1 to 2 inches, then grinding the so crushed ore to a particle size P-80 of between Tyler 4 mesh and 20 mesh, and then classifying the ground ore into a fines fraction of less than 65 mesh and one or more coarse fractions of more than 65 mesh.

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Methods of Metal Recovery by Microorganisms (2 Methods)

Bioleaching of Copper: Copper ores (chalcopyrite, covellite and chalcocite) are mostly composed of other metals, besides copper. For instance, chalcopyrite mainly contains 26% copper, 26% iron, 33% sulfur and 2.5% zinc. Bioleaching of copper ore (chalcopyrite) is widely used in many countries.

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Precious metal recoveries in secondary copper smelting ...

Dec 31, 2019  The recovery of precious metals from the WEEE is currently performed in copper-making circuits including copper smelters, converters and secondary (black) copper smelters. Black copper smelting is typically implemented for low-grade copper

More

BACKGROUND REPORT SECONDARY COPPER SMELTING,

Secondary copper recovery is divided into four separate operations: scrap pretreatment, smelting, alloying, and casting. Pretreatment includes the cleaning and consolidation of scrap in preparation for smelting. Smelting consists of heating and treating the scrap for separation and

More

US6319389B1 - Recovery of copper values from copper ores ...

Copper values are efficiently recovered from a copper ore, including secondary sulfides, by first crushing the ore to a particle size P-80 of about 1 to 2 inches, then grinding the so crushed ore to a particle size P-80 of between Tyler 4 mesh and 20 mesh, and then classifying the ground ore into a fines fraction of less than 65 mesh and one or more coarse fractions of more than 65 mesh.

More

Study on Recovery of Associated Copper Oxide Ore by ...

In most copper oxide ores, in addition to copper oxide minerals, there are usually a small amount of natural copper and copper oxide minerals. The leaching of the latter two types requires the participation of oxygenCompared with secondary sulfide ore. , copper ore

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Biologically Assisted Copper Secondary Sulfide Ore ...

Copper recovery in solution, along with a high redox potential, was established faster in the mesophilic column but leveled off quickly over time. Copper extraction showed that the 6 g/l chloride column has the highest metallurgical performance (83% CuT) with 4 extra points of copper recovery over the 1.5 g/L and 3 g/l Cl- columns.

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(PDF) The recovery of oxide copper minerals from a complex ...

This paper describes investigations to increase the flotation recovery of copper from ores containing both primary and secondary copper minerals. An increase in the flotation recovery of copper is ...

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(PDF) BULK FLOTATION OF COMPLEX COPPER ORE Khmer Lee ...

This is because the secondary copper minerals are soluble and during grinding, or in situ, they release copper ions, which activate sphalerite. It is quite common that copper–zinc ores that contain secondary copper minerals have a covellite layer on the sphalerite surface (Bulatovic, 2007).

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US4269622A - Recovery of precious metals from difficult ...

ore copper recovery Prior art date 1979-12-28 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number US06/108,168 Inventor Bernard J.

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Methods of Metal Recovery by Microorganisms (2 Methods)

Bioleaching of Copper: Copper ores (chalcopyrite, covellite and chalcocite) are mostly composed of other metals, besides copper. For instance, chalcopyrite mainly contains 26% copper, 26% iron, 33% sulfur and 2.5% zinc. Bioleaching of copper ore (chalcopyrite) is widely used in many countries.

More

Recovery of Copper from Copper Sulfide Concentrate by ...

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-

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Secondary recovery of a copper heap leach

Secondary recovery of a copper heap leach Dale F. Rucker, hydroGEOPHYSICS, Inc., USA Shawn Calendine, hydroGEOPHYSICS, Inc., USA Abstract Structural uniformity, that is, the degree to which hydraulic properties are homogenized over space, will affect the degree to which ore is effectively leached. Nonuniform ore has been shown to form preferential

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(PDF) Heap leaching as a key technology for recovery of ...

Spent heaps are either, reclaimed and deposited on a separate waste ore dump to use the cleared lined ground for a new heap, or a new lift is built on top of the old heap, with a view to using the existing infrastructure and potentially recovering additional unleached values, as leach solution from the fresh ore percolates through the spent ore ...

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RECOVERY OF COPPER FROM OXIDE COPPER ORE BY

RECOVERY OF COPPER FROM OXIDE COPPER ORE BY FLOTATION AND LEACHING Kiraz, Emirhan M.S., Department of Mining Engineering Supervisor: Prof. Dr. Mustafa Ümit Atalay December 2014, 65 pages The aim of this study was the recovery of copper from the oxide copper ore by froth flotation and agitating sulphuric acid (H 2 SO 4) leaching.

More

Gold extraction - Wikipedia

Gold extraction refers to the processes required to extract gold from its ores.This may require a combination of comminution, mineral processing, hydrometallurgical, and pyrometallurgical processes to be performed on the ore.. Gold mining from alluvium ores was once achieved by techniques associated with placer mining such as simple gold panning and sluicing, resulting in direct recovery of ...

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