Optimize your recovery and reagent consumption for sulfide ores with customized technical solutions. ... / Oil and Mining Services / Mining Solutions / Sulphide Ores. Mining Solutions. Sulphide Ores. Optimize your recovery and reagent consumption for sulfide ores with customized technical solutions. ... whether processing primary, secondary or ...
This study indicates that pretreatment has a positive effect on copper dissolution from primary copper sulfide ore in an acid-chloride medium. It also provides a feasible alternative for treating primary copper sulfide ores at the industrial level.
Proponents of sulfide-ore copper mining argue that the choice between this new type of mining and amenity-based development is a false choice for the Arrowhead region (Praxis Strategy Group, 2017). Those making this claim point to the continued existence of the taconite mining industry during the
Therefore, red zinc ore (RZO) is dominant in the Zarigan SEDEX type deposit. Exploration of the sulfide ore is in early stages. Based on the previous mining activities (from 1957 to 1977), the primary sulfide ore reserve is estimated to be about 18–20 Mt, with 10 Mt of oxidized ore (Simiran Mining Co.).
Mineralogical, Textural, and Metal . Residence Studies of Primary, Recrystallized, and Remobilized Ores of the Greens Creek Deposit. By Cliff D. Taylor, Steven J. Sutley, and Frederick E. Lichte. Chapter 9 of. Geology, Geochemistry, and Genesis of the Greens Creek Massive . Sulfide Deposit, Admiralty Island, Southeastern Alaska. Edited by
Deposits of platinum ores are either primary or placer and are composed of platinum or complex ores (many primary deposits of copper and copper-nickel sulfide ores and placer deposits of gold with platinum or with iridosmine). Platinum group metals are unevenly distributed within deposits of platinum ores.
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.
4. Formation of the Ni-Cu-PGE sulfide ores: Primary localization of dense immiscible magmatic sulfide Post-magmatic processes (formation/modification) 5. Origin of the metals: Emplacement of sulfides from depth Sourced from the melt sheet 6. Deformation history: Relatives roles of different orogenic events
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 …
Geol C7. test 2. STUDY. PLAY. Gold is not now being extracted from seawater. ... What is the primary reason for it not being extracted? It would be too costly and difficult to separate the small amount of gold from the very large amounts of halite and other minerals. ... All of the following are commonly mined from sulfide ores except what?
The sulfide ores mostly display textural evidence of having been primarily deposited as an immiscible melt. ... Phase relations of primary sulfides indicate that early crystallization of the ore was dominated by a monosulfide solid solution (Mss) with a pyrrhotite composition, from which pentlandite and chalcopyrite were formed through ...
(iron hat), a residual formation that occurs in the surface parts of ore (primary sulfide) deposits of copper, lead, zinc, and other metals as a result of chemical weathering and oxidation of the primary minerals of the ore body.
Of the more than 60 known lead-containing minerals, by far the most important primary ore of the metal is the lead sulfide galena (PbS). Galena often contains silver, zinc, copper, cadmium, bismuth, arsenic, and antimony; in fact, the value of the silver content often…
Sulfide flotation can be divided into four metal-value based groups: (a) Cu, Cu-Mo, Cu-Au ores, (b) complex, polymetallic ores such as Pb-Cu-Zn-Ag, (c) primary Au and PGM ores, and (d) Ni ores. In groups (a) and (b), separation of sulfides from each other …
Recovery of Gold in Pyritic Sulfide Ores . Recovery of Gold in Pyritic Sulfide Ores ... The characteristics of primary pyrite are a absence of porosity, an extreme brittleness, a resistance to oxidation, and the existence of gold possessing a weak susceptibility to magnetism (due to a fine coating of a iron compound). ...
two major types (Naldrett, 2004): those that are sulfide-rich, typically with 10 to 90 percent sulfide minerals, and have economic value primarily because of their Ni and Cu contents; and those that are sulfide-poor, typically with 0.5 to 5 percent sulfide minerals, and are exploited principally for PGE.
It is found in ore deposits around the world. It is also the oldest metal known to man and was first discovered and used about 10,000 years ago. And as alloyed in bronze (copper-tin alloy) about 3000 BC, was the first engineering material known to man.
Copper ore is classified into three groups; primary copper sulfide, copper oxide and secondary copper sulfide. Leaching copper from primary copper sulfide, such as chalcopyrite, with sulfuric acid takes longer time than from copper oxide and secondary copper sulfide. As such, an oxidant is required to extract copper from chalcopyrite.
Oct 23, 2018· Effect of Pretreatment on Leaching Primary Copper Sulfide in - MDPI. Dec 21, 2017 Three sets of experimental tests were performed (flask, reactor and mini-column). This study indicates that pretreatment has a positive effect on copper dissolution from primary copper sulfide ore in an acid-chloride medium.
In-Place Leaching of Primary Sulfide Ores: Laboratory Leaching Data and Kinetics Model R. L. BRAUN, A. E. LEWIS, AND M. E. WADSWORTH Experimental results obtained in laboratory leaching studies of primary copper sulfide ore in sulfuric acid systems pressurized with oxygen are interpreted by a computerized geomet- ...
Mineralogy of Sulfides By David J ... ore minerals of nickel; bornite (Cu 5 FeS 4) and chalcocite (Cu 2 S) as major copper minerals; and molybdenite (MoS 2) is the primary source of molybdenum. Tetrahedrite ... sphalerite and galena are found in predominantly sedimentary sequences. Sulfide ores in volcano-sedimentary sequences, such as those ...
Sep 24, 2018· In this study, the mechanism which underpins the different interactions of chalcopyrite, a primary copper sulfide mineral, and chalcocite, a secondary copper Contact Us Reactive transport modelling of ore mineral zoning and the
In general, a primary grind fineness (ball mill) of from about 65% to about 75% passing 200 mesh (Tyler) is suitable; however, the ease of sulfide liberation with relatively coarse grinding may permit the use of a primary grind product of 60% or less passing 200 mesh, depending on the ore characteristics.
of the ores retain primary mineralogy and mineral textures as well as gross original ore stratigraphy. Ore lithologies fall into two groups: massive sulfide ores (greater than 50 percent sulfides) and semimassive or disseminated sulfide gangue-rich "white" ores (less than 50 percent sulfides). There are two
A typical copper sulphide ore contains various levels of iron sulphide types that generally include pyrite (FeS2) and pyrrhotite (Fe1-xS). Read more. ... All primary sulfide ores of copper sulfides, and most concentrates of secondary copper sulfides (being chalcocite), are subjected to smelting.
The sulfide minerals are a class of minerals containing sulfide (S 2−) as the major anion. Some sulfide minerals are economically important as metal ores. The sulfide class also includes the selenides, the tellurides, the arsenides, the antimonides, the bismuthinides, the sulfarsenides and the sulfosalts.
Low-Grade Copper Mineralization into Economic Ores by David F. Briggs ... Leached cap and the underlying enrichment blanket primarily occur above the primary ore body and ... two to eight times greater than the non-enriched primary sulfide mineralization (0.1 to 0.4% copper).