secondary copper ore recovery

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An investigation into the recovery of Molybdenum,… pdf

CANADA cumoco.com. February 18, 2009. An investigation into the recovery of. Molybdenum, Copper and Silver from. CuMO samples. SGS Canada Inc., Independent report ... publish the report or any part thereof without the written consent of SGS Minerals Services. ..... Figure 5: Secondary Copper Content in CUMO, vs.

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Chapter 82 - Metal Processing and Metal Working Industry

Primary smelting and refining produces metals directly from ore concentrates, while secondary smelting and refining produces metals from scrap and process waste. ..... When sufficient copper has been cemented out, the copper-rich iron is put into the smelter together with the ore concentrates for copper recovery via the...

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Patent WO2012053915A1 - A process of gold and copper…

26 Apr 2012 ... Unlike the primary zone that responds readily to conventional flotation procedures, the recovery of metal values from the secondary zone (the copper oxide zone or zone containing copper by-products) has been limited to the prevailing practice of acid heap leaching to extract the acid soluble component of...

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Recovery of Copper by Solution Mining… pdf

productive uses of solution mining employed by the copper industry to date; the recovery of copper from ores that have already been broken and fragmented by previous mining activity. Primarily employed in a secondary or tertiary role, this method has mainly been used to supplement production from existing operations or...

Copper : Copper Ore Sorting - Tomra

TOMRA Sorting Solutions utilizes cutting-edge copper sorting technology to get results from copper mined sulphide and oxide deposits. Our copper sorting technology treats feeds from both types of ores based on different physical properties at feed rates of up to 300t/h. Copper. 20-80mm // Input // PRO Secondary COLOR...

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World production and possible recovery of cobalt from the… pdf

World production and possible recovery of cobalt from the. Kupferschiefer stratiform copper ore. Paulina M. Pazik1,2,a, Tomasz Chmielewski2, Hylke J. Glass1, and Przemyslaw B. Kowalczuk 2. 1Camborne School of Mines, University of Exeter, Tremough Campus, Penryn, Cornwall, TR10 9EZ, UK. 2Wroclaw University of...

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Assessing metal recovery from low-grade copper…

Copper is one of such metals, as it has recently achieved record high prices, which facilitated the processing of these low-grade sources in a cost-effective way. In this regard, bioleaching is one of the technologies available for the processing of such ores. Secondary copper sulphides are especially amenable to bioleaching...

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Copper Sulfide Flotation - 911 Metallurgist

Flowsheet for treatment of Copper Sulfide ores rich in minerals such as ... Larger plants generally will incorporate a circuit for molybdenum recovery from the copper concentrate by flotation. "Sub- A" Flotation is standard...

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STUDIES ON THE CURING AND LEACHING ... - Open… pdf

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...

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Extraction of Copper from Malanjkhand Low-Grade…

26 Jan 2011 ... The major copper-bearing minerals present are chalcopyrite and covellite. The former mineral occurs as minute disseminated grains independently or as inclusion within pyrite or as secondary vein in the contact of pyrite and quartz. The covellite appears as veins/vein let's traversing magnetite. The other...

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Recovery of cobalt, nickel, and copper from…

This technology is applicable to the recovery of nickel, cobalt, copper, and platinum group metals from furnace or converter slags emanating from copper or nickel smelters treating sulphide concentrates. Pilot-plant testwork at Mintek has demonstrated recoveries of 98% for nickel and over 80% for cobalt, at power levels of...

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Metal Recovery From Secondary Copper Converter… pdf

Metal recovery from secondary copper converter dust by ammoniacal carbonate teaching. (Bureau of Mines report of investigations; 9199). Bibliography: p. 8. Supt. of Docs. no.: I 28.23:9199. 1. Copper-Metallurgy. 2. Metallurgical furnaces-Waste control. 3. Leaching. 4. Ammonium carbonate. I. Jones, Jack R. II. Title. III.

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Effectiveness acidic pre-cleaning for copper-gold…

As a result of this acidic pre-cleaning, there is an increased recovery of gold, since gold bearing or associated minerals were destroyed. However, it is only a secondary effect and the technique does not aim to maximize this effect, only to minimize cyanide consumption by eliminating cyanides, especially copper. This study...

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Copper Recovery from Silicate-Containing Low-Grade… pdf

to address the utilization of common secondary resources especially low-grade ores by the devel- opment of the processing technology. Recently, much attention has been focused on the hydro-. Resources Processing 64 : 3–14 (2017). Original Paper. Copper Recovery from Silicate-Containing Low-Grade Copper Ore.

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Economical Recovery of By-products in the Mining… pdf

Copper mining operations and by-product recovery opportunities . ..... Secondary. Crusher. Tertiary. Crusher. SAG, AG, or. Rod Mills. Ball. Mills. Open Pit Mining. Underground. Mining in situ. Leaching. Dump Leach. Operations. Heap ..... by secondary air, and carried out in the furnace gases for recovery of zinc oxide dust.

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AP-42, CH 12.9: Secondary Copper Smelting - EPA pdf

metallic copper, alloyed with zinc or tin to form brass or bronze, incorporated into chemical products, or used in a ... Secondary copper recovery is divided into 4 separate operations: scrap pretreatment, smelting, alloying ... Smelting of low-grade copper scrap begins with melting in either a blast or a rotary furnace, resulting...

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030309 Secondary copper production Converter-Blast… pdf

Secondary raw materials such as oxide materials for example can also be processed in shaft kilns to copper matte or coarse ... Copper is recovered from many secondary materials, including copper and copper- alloy scrap, as well as ... most suitable sequence of recovery operations in a smelter or refinery. The recovery of.

LEACHING OF LOW-GRADE COPPER ORES: A CASE STUDY FOR… pdf

14 Dec 2016 ... This paper deals with the investigation of column leaching of low-grade ores from the copper mine Cerovo,. Serbia (the approximate Cu ... phase, copper recovery increases as well, and copper oxide minerals were completely leached out. Besides copper .... oxidation zone, the zone of secondary sulphide...

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an investigation of copper recovery from a sulphide oxide… pdf

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. The flotation of a natural porphyry...

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The Life Cycle of Copper, its Co-Products and By-Products… pdf

Mining, Minerals and. Sustainable Development. No. 24. January 2002. The Life Cycle of Copper, its. Co-Products and By-Products. Robert U. Ayres, Leslie W. Ayres and Ingrid Råde. This report was commissioned by the MMSD project of IIED. It remains the sole responsibility of the author(s) and does not necessarily...

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Precious metals refining, asset recovery and…

Sipi asset recovery services help businesses navigate the disposition challenges of surplus technology. Whether refurbishing units for resale, relocating data centers or reclaiming the inherent copper and precious metals, we excel at recovering value from technology assets—while maintaining the highest levels of physical...

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Process mineralogical characterization of Kansanshi copper… pdf

Kansanshi mine is the largest copper producer in Africa. The deposit is mineralogically and texturally complex due to supergene enrichment resulting in the presence of a variety of primary and secondary copper minerals. This necessitates the processing of ore through three separate circuits: sulphide flotation, mixed...

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Biologically Assisted Copper Secondary Sulfide…

Integration of Scientific and Industrial Knowledge on Biohydrometallurgy: Biologically Assisted Copper Secondary Sulfide Ore Leaching in the Presence of ... 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...

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The recovery of oxide copper minerals from a complex…

Kansanshi copper mine is situated in the north western province of Zambia. 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...

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Heap Leaching Technique in Mining - Euromines pdf

recovery rates generally increase under higher lixiviant concentrations, temperature and dissolved oxygen and higher pH (>9) for cyanide leach and lower pH (<2) for acid leach conditions. A comparative leach kinetics of oxide, secondary and primary copper sulphide ores and oxide, transitional and sulphide gold ores in...

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Review, evolution, and optimization of the treatment of… pdf

Of note was the development of a recovery model, based on the strong correlation between the total copper and ... optimization of mixed sulphide/oxide copper ore treatment at Kansanshi Journal of the Southern African .... With the exception of covellite, the remainder of secondary sulphides had the best flotation responses.

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COPPER Copper production pdf

mines to achieve low transport costs. The copper recovery efficiency is over 90 %. About 95 % of the ore input goes into the tailings, which are stored in large dams near the mine and are used for water recycling to the flotation stages. Separation of special copper ores such as those containing molybdenite or with high zinc...

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Copper Mining and Processing: Processing of Copper…

Following mining, transporting, and crushing to a consistent gravel or golf ball-size, the crushed ore is further processed at a mill using secondary crushers, and reduced to pebbles, and finally to fine sand. After the copper ore is crushed, liquid is added to make it a slurry. The slurry is a mix of valuable copper ore minerals...

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Copper extraction - Wikipedia

Secondary sulfides – those formed by supergene secondary enrichment – are resistant (refractory) 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...

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RTB Bor, Serbia: Copper ore production up, processing…

The three identical grinding circuits each consist of a combination of a primary rod mill and a secondary ball mill. ... He continues: "In making the changes, the aim was also to raise the mine's copper ore recovery percentage by more than 5% and decrease the electricity costs by 20% – all done with the lowest possible...

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Metal Recovery from Scrap and Waste - Springer… pdf

Metal Recovery from Scrap and Waste. ______~_M. Shamsuddin. The depletion of high grade ores and accumulation of huge quantities of me- tallic scrap and .... secondary copper. Bronzes and gun metals have been directly electrorefined into pure copper using complex electrolytes." Investigations have also been.

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copper - USGS Mineral Resources Program pdf

secondary copper industry continued with the closure in May of one of the Nation's two remaining secondary smelters and its ... revolutionized copper mining, and production was derived increasingly from low-grade porphyry copper ... closure of a secondary copper smelter led to the continued downward trend in recovery.

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Agglomeration and leaching of a crushed secondary…

A crushed, secondary sulfide copper ore was provided by a large mining company. The agglomeration of the ore was studied in three phases. In phase one, a ... None of the agglomeration conditions affected copper recovery at 90 days of leaching. Following leaching, acid-resistant agglomeration aids were evaluated to...

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A Review of the Carbon Footprint of Cu and Zn Production ... -… pdf

13 Sep 2017 ... Abstract: Copper (Cu) and zinc (Zn) with their unique properties are central for economic growth, ... Keywords: Cu; Zn; circular economy; carbon footprint; mining; secondary materials; metal production. 1. .... Recovery from these sources eliminates the option of disposal, which today is considered expensive.

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Copper - Princeton University pdf

shows flow-sheets for pyrometallurgical' and hydrometallurgical 2 copper production. Tables. 6-1 and 6-2 provide capsule summaries of these processes. 1 PyrometaIIurgy IS the extractIon of metaI from ores anD concen- trates using chemical reactions at high temperatures. 2 Hydrometallurgy is the recovery of metaIs from...

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BGR - Projects - Secondary Mining – Recovery of…

Secondary Mining – Recovery of strategic elements from mining residue deposits from selected locations in Chile, combined with a subsequently more environmentally friendly deposition of the ... Chile is one of the biggest producers of natural resources and is well known for its great open pits from copper mining. Most of...

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Antimony Recovery from End-of-Life Products and… pdf

This has sparked efforts to find secondary sources of antimony either through the recycling of end-of-life products or by recovering antimony from industrial process residues. Valuable residues are obtained by processing of gold, copper, and lead ores with high contents of antimony. Most of these residues are currently.

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Copper Leaching Behavior of Iron-Oxide Hosted… pdf

25 Oct 2008 ... It was found that the IOCG ore is more difficult to leach than primary and secondary copper ores. Furthermore, some variables including sulfuric acid dosage, hydrogen peroxide addition and particle sizes were considered and investigated. The similar copper recovery was observed with the variation of the...

Innovations in Copper: Mining & Extraction:…

Since bioleaching is a natural process, one undesirable effect is the creation of metalliferous acid drainage from the slow weathering of sulfide mineral outcrops and from abandoned mines. However, as in the case of Rio Tinto, in Spain, even this can be turned into an asset by recovery of the copper from such waters.

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Recovery copper and tin from a complex Oxide Copper… pdf

From ore analysis, the mine oxidation rate, up 43.46%, is a copper oxide; active copper is high, reaching. 20.03%; other metals iron, lead and zinc content is high, ... mainly tin, copper, lead, zinc, iron and sulfur. Table 2 Copper phase analysis of material. Projiect. Free copper oxide. Conjunction oxidized copper. Secondary.

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