ore flotation supergene

Ore deposits formed by oxidation and supergene

Ore Deposits Formed by Oxidation and Supergene Enrichment � When ore deposits are exposed to the oxidation zone they are weathered and altered with the country rocks. � The surface waters oxidize many ore minerals and yield solvents that dissolve other minerals.

12. Supergene Ore and Gangue Characteristics

2012-3-8 · Supergene Ore and Gangue Characteristics Table 12–1. Mineral assemblages of supergene environments in selected volcanogenic massive sulfide (VMS) deposits. Minerals in italics are present in minor or trace amounts. New South Wales, Australia. 1.

(PDF) A Geometallurgical study of flotation performance in ...

A Geometallurgical study of flotation performance in supergene and hypogene zones of Sungun copper deposit. March 2019; ... Porphyry stock II, hosting the copper ore, experienced an intense hydro ...

v118n11a5 Relationship between ore mineralogy and

2018-11-30 · Of the three flotation circuits, the sulphide circuit has thehighest recovery (>90%) due to the simple coppermineralization, with approximately 90% of the copperoccurring in chalcopyrite. In the mixed ore, chalcopyrite hostsapproximately 35% of the copper in the feed, and in the oxideore this proportion is normally less than 20%. In the oxidecircuit, the flotation recovery is less than 50%, asapproximately

Process mineralogical characterization of Kansanshi

2020-12-8 · 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 ... Research focusing on mixed ore flotation (Kalichini, 2015). A series of hand samples and grab samples representing the variation in mineralogy and

Flowsheet development for the Kamoa project – A case

2013-10-1 · There are two parts to the model: the correct sampling and subsampling of the ore to the flotation test charge level; and the replicate flotation test system using the powerful averaging effects of the Central Limit Theorem (Box et al., 1978), with an outlier rejection system written and proposed for small data sets by Grubbs (1969).

THE EVOLUTION OF SUPERGENE ENRICHMENT IN THE

2018-1-16 · THE EVOLUTION OF SUPERGENE ENRICHMENT IN THE MORENCI PORPHYRY COPPER DEPOSIT, GREENLEE COUNTY, ARIZONA by Merritt Stephen Enders _____ A Dissertation Submitted to the Faculty of the DEPARTMENT OF GEOSCIENCES In Partial Fulfillment of the Requirements For the Degree of DOCTOR OF PHILOSOPHY In the Graduate College THE

EFFECT OF GRINDING CHEMISTRY ON THE

2017-12-17 · this purpose. However, the role of pulp chemistry on the flotation response of mixed ore is poorly understood. Mixed ore consists of a variety of sulphide and oxide minerals, and forms a part of the supergene enrichment zone of sulphide ore bodies; zones which can be well developed and are of primary importance for the economics of the mining ...

Supergene copper zone - Geology & Geometallurgy ...

2021-8-2 · I am working on lode copper deposit associated with thrust faults hosted in volcanic clastic rock. Copper occur in wavy Qtz-Py-Chalcocite vein and fracture fills. My question is about the copper minerals we have being chalcocite and covelite from surface up to 100m depth. At the same zone

Process mineralogy as a predictive tool for flowsheet ...

2016-10-1 · The fine grained nature of the Cu sulphides led to the development of an MF2 (mill float mill float) based flowsheet with 75 μm and 38 μm primary and secondary grinds respectively.At the 75 μm primary grind, Cu sulphide liberation was reported at 62.5% for the hypogene ore and 53.1% for the supergene ore (Lotter et al., 2013).A mixed reagent suite was selected and refined based on the ...

Recovering native copper at New Afton delivers recovery ...

2020-8-3 · (supergene) and transition ores which do not recover as well in the conventional flotation circuit. According to Senior Metallurgist, Jennifer Katchen, this put at risk an average of 4.5% copper recovery in supergene ore and potentially more on individual days depending on the amount of native copper in the plant feed.

Iron Ore - hjedwardsaktiebolag

For sulphide ores, both secondary (supergene) and primary (hypogene), froth flotation is used to physically separate ore from gangue. For special native copper bearing ore bodies or sections of ore bodies rich in supergene native copper, this mineral can be recovered by a simple gravity circuit.

v118n11a5 Relationship between ore mineralogy and

2018-11-30 · extent of oxidation and supergene enrichment. Sulphide, oxide, and mixed ore are fed to separate mineral processing circuits tailored for recovery of the dominant copper minerals in each. After comminution to a target grind size of 80% passing 150 μm, each ore type is subjected to flotation to recover the copper sulphide minerals (chalcopyrite ...

Process mineralogical characterization of Kansanshi

2020-12-8 · 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 ... Research focusing on mixed ore flotation (Kalichini, 2015). A series of hand samples and grab samples representing the variation in mineralogy and

Flowsheet development for the Kamoa project – A case

2013-10-1 · The flowsheet development work was based on the sample of hypogene ore provided from a site visit to Kamoa in April 2011. The baseline platform for rougher and scavenger flotation followed an MF2 arrangement, with primary and secondary grinds set at p80 sizes of 75 and 38 μm respectively, and using the High-Confidence Flotation Testing approach.. These initial grinds were selected from a ...

Leaching Supergene Copper Ore - Atacamite & Chrysocolla

2017-10-18 · Some chrysocolla mineralization is hosted by biotitized andesitic wall rocks. The supergene ore bodies are within 15 m (49 ft.) of a mid-Tertiary erosion surface. The ore is locally decomposed to grus and in general has very high matrix permeability for

Process mineralogical characterisation of the Kansanshi ...

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 flotation and oxide leach, followed by solvent extraction and electro-winning.

EFFECT OF GRINDING CHEMISTRY ON THE

2017-12-17 · this purpose. However, the role of pulp chemistry on the flotation response of mixed ore is poorly understood. Mixed ore consists of a variety of sulphide and oxide minerals, and forms a part of the supergene enrichment zone of sulphide ore bodies; zones which can be well developed and are of primary importance for the economics of the mining ...

What is Copper Extraction? - H&G

For sulfide ores, both secondary (supergene) and primary (hypogene), froth flotation is used to physically separate ore from gangue. For special native copper bearing ore bodies or sections of ore bodies rich in supergene native copper, this mineral can be recovered by a simple gravity circuit. Froth flotation

BHP on how Spence Growth Option is helping take mining ...

2020-12-16 · The supergene oxide and sulphide material is currently processed in a leaching operation whereas the hypogene sulphide material will provide ore feed to a new conventional sulphide milling and flotation concentrator plant.

For personal use only - ASX

2010-12-16 · and supergene/native copper ores through the primary, secondary and tertiary crushing, screening, gravity, milling, ... Commencement of continuous pilot scale flotation of primary ore. Page 3 For personal use only Figure 7: Native Cu nuggets scalped from screening of the HPGR feed (>40mm)

Leaching Supergene Copper Ore - Atacamite & Chrysocolla

2017-10-18 · Some chrysocolla mineralization is hosted by biotitized andesitic wall rocks. The supergene ore bodies are within 15 m (49 ft.) of a mid-Tertiary erosion surface. The ore is locally decomposed to grus and in general has very high matrix permeability for

Process mineralogical characterisation of the Kansanshi ...

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 flotation and oxide leach, followed by solvent extraction and electro-winning.

Minerals | Free Full-Text | Environmental and Business ...

Copper-Nickel Ore Flotation Tailings. A comparison of two AMR—the tailings storage facility at Pechenganickel Plant 1, JSC Kola MMC, in Zapolyarny, Murmansk Region, which is in operation at present, and the processing tailings of copper-nickel ores from

Effect of Chemical and Phase Compositions on Absorption ...

2019-10-8 · A feature of these old tailings is supergene mineralization and sulphide oxidation products. Alongside with cassiterite, varlamovite is present as a typical product of stannite-group tin sulfosalts modification. New experimental data on flotation of Solnechny MPP tailings with DBDTC are obtained.

Mowana Copper Mine, South Africa - Mining Technology ...

Mixed oxide-supergene and supergene ores comprise 35% and 45% respectively of the open-pit reserves, with the sulphide ore contributing the remaining 20%. Production from the open pit will come mainly from this material, and will cease after 2014, when mainly sulphide ore

Nevsun Resources Ltd.: Bisha Feasibility Study ...

2006-10-13 · Before the oxide ore is exhausted the copper flotation process equipment will be installed and commissioned so that a smooth transition can be made from oxide ore to the supergene ore

OPEN ACCESS minerals - MDPI

2014-7-8 · Flotation reagents, cyanide, geochemical and geotechnical stability of tailings impoundments Fe Hydrothermal and Laterites (Supergene) Hematite—magnetite (goethite-ferrihydrite) e.g., As, Se, Th, Cr, Cu, Zn, Ni, Cd, Pb Release of associated elements under reducing conditions (reductive dissolution) Flotation reagents, geochemical and

CANATUAN CU/ZN FLOTATION METALLURGY

2015-11-12 · Flotation time Cu Rec, % Zn Rec, % 5 min 86.70 93.74 10 min 91.71 95.04 15 min 92.07 95.16 A modal mineralogical study was conducted by Blue Coast Metallurgy Ltd of Canatuan flotation products (Martin 2010). General mineral composition of the ore is shown in Table 2. The copper mineral speciation is shown in Figure 1.

A Deposit Model for Mississippi Valley-Type Lead-Zinc

2010-7-27 · A Deposit Model for Mississippi Valley-Type Lead-Zinc Ores Scientific Investigations Report 2010–5070–A U.S. Department of the Interior U.S. Geological Survey