Leaching of Primary Copper Sulfide Ore in Chloride-Ferrous ...

Copper extraction from primary copper sulfide ore from a typical porphyry copper deposit from Antofagasta, Chile, was investigated after leaching with a chloride-ferrous media at two temperatures. The study focused on whether this chemical leaching system could be applied at an industrial scale. Leaching tests were conducted in columns loaded with approximately 50 kg of agglomerated ore; the ...

12. Supergene Ore and Gangue Characteristics - USGS

sulfide minerals and descending, acidic meteoric waters; these processes take place at or near the ground surface in subaerial environments (Guilbert and Park, 1986). In VMS deposits, copper and other metals are mobilized from primary massive sulfide ore and reprecipitated at depth. This precipitation of Cu

Copper extraction - Wikipedia

All primary sulfide ores of copper sulfides, and most concentrates of secondary copper sulfides (being chalcocite), are subjected to smelting.Some vat leach or pressure leach processes exist to solubilise chalcocite concentrates and produce copper cathode from the resulting leachate solution, but this is a minor part of the market.. Carbonate concentrates are a relatively minor product ...

ORE DEPOSIT TYPES AND THEIR PRIMARY EXPRESSIONS …

ore formation is a common and intrinsic part of crustal evolution, large and super large ore deposits require the coincidence of particularly favourable combinations of processes and source parameters. This brief review outlines the key primary geochemical expressions of the main metalliferous ore deposit types found in Australia. To a large

Nickel Deposits Explained | Balmoral Resources Ltd.

Magmatic Nickel Sulphide Deposits. The bulk of nickel mined today comes from either nickel laterite deposits, in deeply weathered terrains where nickel is released from the weathering of ultramafic rocks, or from nickel sulphide deposits which is our primary focus at Grasset.

VMS Volcanogenic Massive Sulphide Ore Deposits ...

If we start with VMS Volcanogenic Massive Sulphide Ore Deposits and their Mineralization we see from this image shows some of the sulphide chimneys associated with the model black smoker VMS deposit. VMS will emit black plume of hot water venting from one of the chimneys. You'll remember this cross section from reads on both porphyry deposits and epithermal, in the case of VMS deposit, we ...

Supergene (geology) - Wikipedia

In ore deposit geology, supergene processes or enrichment are those that occur relatively near the surface as opposed to deep hypogene processes. Supergene processes include the predominance of meteoric water circulation with concomitant oxidation and chemical weathering.The descending meteoric waters oxidize the primary sulfide ore minerals and redistribute the metallic ore elements.

Copper Ore Types: Sulfides versus Oxides - Nasdaq.com

Apr 23, 2011· Both ore types can be economically mined, however, the most common source of copper ore is the sulfide ore mineral chalcopyrite, which accounts for about 50 percent of copper production.

Photos of Natural Zinc Ore, zinc minerals and specimens

At Tintic, Utah, valuable bodies of oxidized zinc ore are found on the borders of older sulphide deposits. In this district and at Leadville Colo., and in the Cerro Gordo vein, California, oxidized iron-stained zinc carbonate ores, unnoticed for many years, have lately become prominent sources of zinc. Return to Metal Ores Page:

Copper Mining and Extraction: Sulfide Ores

The smelter for sulfide ores produces sulfur dioxide gas. This is scrubbed from the flue gases to make sulfuric acid for leaching copper from oxide ores. Scrubbing sulfur dioxide also protects the environment. For example: FeO(s) + SiO 2 (s)→ FeO.SiO 2 (slag) This is …

Platinum Ores | Article about Platinum Ores by The Free ...

The dispersed form of platinum group metals in platinum ores found as infinitesimally small impurities enclosed in the crystal lattice of ore and rock-forming minerals is of lesser importance. Primary deposits of platinum ores are platiniferous complex sulfide and platinum chromite ores in a variety of forms with massive and disseminated structure.

Is lead ore a sulphide - answers.com

Ore is natuarally occuring inorganic substance from which one ore mineral can be easily and profitably extracted. an ore is a type of rock that contains minerals with important elements including ...

Ore deposits formed by oxidation and supergene enrichment

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. · An orebody thus becomes oxidized and generally leached of many of its valuable materials down to the groundwater table, or to ...

Supergene sulfide enrichment | geology | Britannica.com

Supergene sulfide enrichment, also called Secondary Enrichment, in geology, natural upgrading of buried sulfide deposits by the secondary or subsequent deposition of metals that are dissolved as sulfates in waters percolating through the oxidized mineral zone near the surface. The ore thus enriched forms the secondary, or supergene sulfide, zone and overlies the primary, or hypogene, zone.

Cerro Verde Primary Sulfide Project - Fluor

The Cerro Verde Primary Sulfide Project was an expansion of existing processing facilities that extract copper from oxide copper ore using conventional heap leach and SX/EW technology. The concentrator processes sulfide copper ore from existing mining pits approximately tripling annual production at the site from 100,000 tonnes of copper to ...

Sulfide Minerals - people.carleton.edu

Most widespread copper mineral Arsenopyrite Primary arsenic mineral Molybdenite Primary Molybdenum ore High temperature deposite Sphalerite Primary ore mineral for Zn Galena Primary ore mineral for Pb Sulfide Minerals Here you will find a short summary of the sulfides that you are studying in lab Important Sulfide Minerals Pyrite FeS2 ...

Sulphide Ores - Corporate

Sulphide Ores Optimize your recovery and reagent consumption for sulfide ores with customized technical solutions. At Clariant Mining Solutions, we are proactive solution-seekers committed to optimizing your mineral processing operations through creative problem-solving.

A Geological Model for the Thompson Ni-Co Sulfide Ore ...

primary sulfide ores • Systematic variations in ore mineralogy spatially controlled by deformation & metamorphism –sulfide kinesis • Process models: emphasis on post-magmatic rather than primary magmatic events • Ongoing exploration success;mineral potential remains enormous in …

Polydymite - Wikipedia

Polydymite is an important transitional ore in many nickel sulfide mines, as it has increased nickel tenor (Ni% as a total of sulfide) and occupies a position within the mineralised profile where it must be extracted to pay for development down to the more valuable primary (hypogene) mineralisation.

Recovery of Gold in Pyritic Sulfide Ores - Mine Engineer.Com

Recovery of gold in sulfide ores has fallen into several categories. First is froth flotation, and second is cyanidation of the ores. Using cyanide to recover gold from sulfide ores generally results in 30 to 35% recovery, and the best I have heard of is around 50% recovery.

Copper sulfide ore: Copper sulfide ore mineral information ...

Look for Copper sulfide ore images on Google Mineral and/or Locality Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.

Search CRMs | ORE Research & Exploration

ORE Assay Standards - global leaders in certified reference materials (CRMs)

Supergene Enrichment - How Natural Processes have ...

the phyllic zone, the primary (hypogene) ore body contains chalcopyrite, bornite, and molybdenite (minor) with minor to moderate amounts of pyrite. Located near the surface, the leached cap and enrichment blanket are features that form as a result of the oxidation and weathering of the sulfide-bearing minerals contained within a porphyry copper ...

Nickel Sulfide Ore Deposits and Impact Melts: Origin of ...

2. Linkages between melt sheet processes and ore deposits Source of the metals Thickness of melt sheet 3. Primary magmatic and post-magmatic processes 4. Place Sudbury ores in a global context: past, present, and future

Primary copper sulfides bioleaching vs. chloride leaching ...

However, comparisons are not available among technologies due to differences in scale and mineral/ore used in different studies. In this work, we have compared bioleaching and chemical chloride leaching technologies (including sulfuric acid-sodium chloride ore pre-treatment) for a mainly primary copper sulfide ore.

Leaching of Primary Copper Sulfide Ore in Chloride-Ferrous ...

500 kg of ore containing primary copper sulfide was obtained from a mine stockpile and crushed using a jaw crusher with a 152.4 mm aperture. Subsequently, sieve analysis was performed to obtain an ore sample with P (80) of 11.5 mm. The ore retained in the meshes was classified by the cone and quartering technique to obtain the

Copper Mining and Processing: Processing of Copper Ores ...

Copper processing is a complicated process that begins with mining of the ore (less than 1% copper) and ends with sheets of 99.99% pure copper called cathodes, which will ultimately be made into products for everyday use.The most common types of ore, copper oxide and copper sulfide, undergo two different processes, hydrometallurgy and pyrometallurgy, respectively, due to the different ...

Gossan | Article about Gossan by The Free Dictionary

In comparison with initial sulfide ores gossans are richer in iron in their upper parts and in gold in their lower parts. Contrasting strongly with the enclosing rocks, gossans serve as an important indicator in explorations for sulfide-ore deposits and in identifying the primary ores concealed in the depths.