secondary copper ore recovery
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secondary copper ore recovery

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

secondary copper ore recovery

secondary copper ore recovery. secondary copper ore recovery . GM stone crusher machine is designed to achieve maximum productivity and high reduction ratio. From large primary jaw crusher and impact crusher to cone crusher and VSI series for secondary or tertiary stone crushing, GM can supply the right crusher as well as complete crushing ...

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

Secondary copper recovery - ScienceDirect

Sep 01, 1975  Secondary copper recovery D. Davies Following a brief review of the economics of copper recycling, the technical details of secondary copper recovery are given, from classification and sampling of scrap through to the production of blister copper ready for electrolytic refining.

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.

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 ...

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.

How to Process Copper Ore: Beneficiation Methods and ...

Oct 27, 2020  Secondary copper sulfide ore is easy to oxidize and more difficult to float than original copper ore. As for the grinding and floating process, it is more advantageous to adopt the stage grinding and floating process for refractory copper ore, such as the re-grinding and re-separation of coarse concentrate, re-grinding and re-separation of bulk ...

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

Enhancing the flotation recovery of copper minerals in ...

Jan 01, 2020  The cumulative copper recoveries increased markedly to over 90%, which represents a significant improvement in comparison to the recoveries obtained from the mill-float process. Sodium alkyl dithiophosphate, mercaptobenzothiazole (FC7245) was found to be the secondary flotation reagent that gave the best copper recoveries.

Precious metal recoveries in secondary copper

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

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

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

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.

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.

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 ...

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

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.

Processes - extraction, mining, smelting, refining ...

Copper Ores. An ore is a rock containing enough valuable mineral to make it worth extracting. In the case of copper, it is worth extracting when there is about 2 kg of copper per 1,000 kg of ore (0.2%). Copper minerals are found in over one hundred varieties, although only a few have been worked for copper on a large scale.

ISASMELT - Wikipedia

The ISASMELT process is an energy-efficient smelting process that was jointly developed from the 1970s to the 1990s by Mount Isa Mines Limited (a subsidiary of MIM Holdings Limited and now part of Glencore plc) and the Australian government’s Commonwealth Scientific and Industrial Research Organisation ("CSIRO"). It has relatively low capital and operating costs for a smelting process.

UNDERSTANDING ACID CONSUMPTION AND ITS

The primary concern for copper producers is copper production and associated recovery. The recovery of copper produced from oxide ore leaching is related to the pH of the solution applied. Figure 7 shows the relationship between pH and copper recovery for a

(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 ...

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.

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.

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

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 ...

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.

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

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.

(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 ...

(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).

(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 ...

Processes - extraction, mining, smelting, refining ...

Copper Ores. An ore is a rock containing enough valuable mineral to make it worth extracting. In the case of copper, it is worth extracting when there is about 2 kg of copper per 1,000 kg of ore (0.2%). Copper minerals are found in over one hundred varieties, although only a few have been worked for copper on a large scale.

Copper Mining and Production Processes Explained

Copper ores. An ore is a rock containing enough valuable mineral to make it worth extracting. In the case of copper, it is worth extracting when there is about 2 kg of copper per 1,000 kg of ore (0.2%). Copper minerals are found in over one hundred varieties, although only a few have been worked for copper on a large scale.

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-

17 - Flotation of Gold Ores

ores that contain impurities that result in high consumption of cyanide, which have to be removed before cyanidation. 4. The flotation method is a technique widely used for the recovery of gold from gold-containing copper ores, base metal ores, copper nickel ores, platinum group ores and many other ores where other processes are not applicable.

Report on the Environmental Benefits of Recycling

Primary and Secondary Copper Production 11 Primary Production 11 ... and to provide a balanced comparison between primary and secondary production from delivery of ore or secondary material to a metal-producing plant. It is hoped that this report will be used by industry to assess their own ... in primary and secondary material recovery.

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

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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