Customer case aboutsecondary copper ore recovery

secondary copper ore recovery

The recovery of oxide copper minerals from a complex

Mar 01, 2017 Initial tests were conducted to optimise chalcopyrite and secondary copper sulphide mineral recovery using only SIBX and this showed that a dosage of 30 g/t SIBX gave the highest Cu recovery (24.7%) at a grade of 14.5%. This dosage was then used in subsequent tests.

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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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How to Process Copper Ore: Beneficiation Methods and

Oct 27, 2020 The oxidation of copper mineral dissolves to generate copper sulphate that will be replaced with iron filings to restore copper ions to metallic copper for precipitation. Finally, float the metallic copper and copper sulfide minerals insoluble in sulfuric acid to obtain copper concentrate.

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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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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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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 It is often possible, after grinding such an ore to a comparatively coarse mesh, to make a profitable recovery of the copper in a low-grade concentrate which does not represent too large a proportion, say 30% or less, of the total weight of the feed.

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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.

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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.

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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 scrap, which may be highly oxidized and includes a wide range of impurities, typically lead, tin, zinc

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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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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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Biomining: Metal Recovery from Ores with Microorganisms

Until now, however, the application of bioleaching is mainly limited to leach secondary copper sulfides and/or, oxides in the form of the heap or dump bioleaching (Gu et al., 2018; Schippers et al

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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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Pre feasibility study in hydrometallurgical treatment of

Jan 01, 2020 Despite copper oxide and secondary sulfide ores, leaching of chalcopyrite ore/concentrate in the sulfate media is slow with low recovery rate. The reasons for chalcopyrite's resistance to leaching in sulfate media was shown to be related to the deposition of reaction products and therefore formation of passivating layer on the mineral surface

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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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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.

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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.

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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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RECOVERY OF VALUABLE BASE METALS FROM

RECOVERY OF VALUABLE BASE METALS FROM SECONDARY MATERIALS USING DC PLASMA SMELTING primary extraction and declining quality of ores, conditions that make it the ideal time to recover more used for their recovery from secondary sources. KEYWORDS Plasma, Plasma smelting, Catalysts, Metal recovery .

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Biomining Wikipedia

Biomining is a technique of extracting metals from ores and other solid materials typically using prokaryotes, fungi or plants (phytoextraction also known as phytomining or biomining). These organisms secrete different organic compounds that chelate metals from the environment and bring it back to the cell where they are typically used to coordinate electrons.

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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 scrap, which may be highly oxidized and includes a wide range of impurities, typically lead, tin, zinc

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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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Copper could see a 'supercharged recovery' — but analysts

Jul 06, 2020 Secondary copper, particularly copper scrap — which makes up one third of the overall market — had been hit even harder by the crisis, he said, estimating that global trade of copper

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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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Biomining: Metal Recovery from Ores with Microorganisms

Until now, however, the application of bioleaching is mainly limited to leach secondary copper sulfides and/or, oxides in the form of the heap or dump bioleaching (Gu et al., 2018; Schippers et al

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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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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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Copper Oxide Flotation Mineral Processing & Metallurgy

Apr 16, 2018 But for the majority of porphyry ores, this is not practiced. The objective of this paper is to address Reasons 2-6 proposed above, and provide a clear picture of the pros- and cons- for the use of hydroxamates for oxide copper recovery. Reason 1 is certainly beyond the scope of this paper.

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Acid leaching of oxide–sulfide copper ore prior the

453 Acid leaching of oxide–sulfide copper ore prior the flotation A way for an increased metal recovery Miroslav D. Sokić1, Vladan D. Milošević1, Velizar D. Stanković2, Vladislav Lj.Matković1, Branislav R. Marković1 1Institute for Technology of Nuclear and Other Mineral Raw Materials, Belgrade, Serbia 2University of Belgrade, Technical Faculty, Bor, Serbia

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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.

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LEACHING OF LOW-GRADE COPPER ORES: A CASE STUDY

The changes in copper content in the ore with the time of exploitation at the RTB mines [9] Oxide copper ore, mixed oxide-sulphide ores and low-grade copper sulphide ore, which, for economic reasons, cannot be enriched by flotation, may be processed by leaching methods. Agents for leaching copper

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Innovations in Copper: Mining & Extraction: Producing

Capital costs at this level of operation were to be US$0.08/lb of copper and operating costs, as shown in Table 2, were estimated at US$0.34/lb of copper. 28 The average ore grade is 0.59% copper and the estimated recovery is 78.2%. The operation was upgraded to 180,000 tons per year before it was completed and to 250,000 tons per year in 2001.

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STUDIES ON THE CURING AND LEACHING KINETICS OF

accelerate the extraction kinetics of copper ores and is widely used in copper operations. The curing process involves the addition of a highly concentrated sulfuric acid to the copper ore during agglomeration. Then, chemical reactions already begin prior to irrigation of the heap, transforming the initial copper species into new copper species

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FI80835B Process for selective enrichment of copper

copper flotation cycle foamed Prior art date 1985-07-09 Application number FI870999A Other languages Finnish (fi) Swedish (sv) Other versions FI870999A (en FI870999A0 (en FI80835C (en Inventor Alfredo P Vargas Nathaniel Arbiter Original Assignee Phlotec Services Inc Priority date (The priority date is an assumption and is not a legal conclusion.

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