sulfide ore copper

Synchronous extraction of nickel and copper from a mixed oxide–sulfide nickel ore in a low–temperature roasting system. Journal of cleaner production 177, 371–377 (2018). Article CAS Google ...

Applied across the industry, improved coarse particle flotation can result in an additional 0.5 million to 1.5 million metric tons …

Applied across the industry, improved coarse particle flotation can result in an additional 0.5 million to 1.5 million metric tons of annual copper production by 2032. If applied across all metals found in sulfide deposits, the technology represents potential value creation of $9 billion to $26 billion per year.

Pyrite is the dominant sulfide in porphyry copper deposits, though it is chalcopyrite that is the most important ore mineral, along with bornite and various binary copper sulfides. In the related porphyry molybdenum deposits, it is molybdenite that dominates. The sulfides in such deposits occur as veinlets or disseminated grains in host …

A smelting workaround. The traditional route for extracting copper from sulfide ores is smelting. Yet there is a growing case for leaching sulfides from lower grade ore bodies and especially for those …

The mixed oxide-sulfide copper‑nickel ore used in this study was provided by Jinchuan Group Ltd. (JNMC), China. The ore powders obtained by grinding the crushed ore in a ball mill at 100 r/min for 15 min were sieved into six narrow size ranges: 75–80 μm, 80–96 μm, 96–109 μm, 109–120 μm, 120–150 μm and 150–180 μm, and the main …

Additionally, for gold and copper extractions, bioleaching is used to extract cobalt, zinc, nickel, and uranium from low-grade ores and industrial effluents. In this review, the fundamental process of bioleaching from low-grade metal sulfide ores are discussed with emphasis on mechanism, types, pathways, techniques, and bioleaching development.

Sulfide-ore copper mining has the potential to release numerous chemicals known to negatively affect human health, including mercury, arsenic, lead, asbestos-like fibers, and air pollution. These chemicals are included in the World Health Organization's "top 10 chemicals of major public health concern." ...

Many important metals are present in nature combined with sulfur as metal sulfides; these include cadmium, cobalt, copper, lead, molybdenum, nickel, silver, and zinc. In addition, gold and platinum group metals are …

The amount of copper in copper sand-stones and slates varies from 1 to 6%, in sulfide cop-per-nickel ores from 1.1 to 4.9%, in copper-pyrite ores from 0.1 to 3%, and in …

Mineral - Sulfides, Crystals, Properties: This important class includes most of the ore minerals. The similar but rarer sulfarsenides are grouped here as well. Sulfide minerals consist of one or more metals combined with sulfur; sulfarsenides contain arsenic replacing some of the sulfur. Sulfides are generally opaque and exhibit distinguishing colours and …

Copper is most commonly present in the earth's crust as copper-iron-sulphide and copper sulphide minerals, for example, chalcopyrite (CuFeS2), bornite (Cu5FeS4) and chalcocite (Cu2S).

The method used to extract copper from its ores depends on the nature of the ore. Sulfide ores such as chalcopyrite ( CuFeS2 C u F e S 2) are converted to copper by a different method from silicate, carbonate or sulfate ores. Chalcopyrite (also known as copper pyrites) and similar sulfide ores are the commonest ores of copper.

Proposed sulfide-ore copper mining threatens these waters and forests. A copper mine in the Boundary Waters watershed will pollute the Wilderness for generations to come, causing irreversible harm to water quality, wildlife, public health, and a sustainable outdoor recreation-based economy. WHAT IS THE THREAT?

Copper sulfide ores are typically the most profitable copper ore type to mine. That is because they have high copper content, and the copper in them can more easily be separated from...

Metallic ore deposits contain many different sulfide and related ore minerals. Most are quite rare. ... We can use a triangular diagram to plot the compositions of copper-iron sulfide minerals in the same way we plotted feldspar, pyroxene, and other silicate compositions in Chapter 6. The small gray triangular diagram in the top of Figure …

The common route for turning copper sulfide ores into metal is high temperature oxidation of sulfides to produce an impure liquid copper. This is cast into slab-like …

If sulfide ores containing iron and copper are to be smelted, an understanding of both the iron and the copper systems is needed. Again, as in Figure 2.1.3 for the Cu–S–O system, ... Sherlock Bay disseminated nickel sulfide ore (0.4% Ni, 0.1% Cu, 0.02% Co) was found to be amenable to bioleaching. ...

Production of Ni/Co from sulphide ores has its challenges that are fundamentally related to the mineralogy of this type of ores. 2.1 Mineralogy of Nickel-Copper Sulphide Ores. Studies on the geology and mineralogy of domestic nickel-copper sulphide ore deposits are reported in several sources in detail [16,17,18,19]. Although …

The secondary sulfide ore (1.01% copper) mainly comprised chalcopyrite, pyrite, pyrrhotite, and magnetite. The detail component of ore sample was measured by XRD analysis (Fig. A.5). 2.2. Bioleaching experiment. The ore sample was passed through a 300-mesh sieve to reduce the particle size to less than 48 μm. The fine dust that …

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 …

Sulfide-ore copper mining is proposed on the edge of the Wilderness Unlike iron mining, sulfide-ore copper mining has never been done in the state of Minnesota. This type of mining generates waste rock full of sulfates, which, when exposed to air and water, becomes sulphuric acid, and leaches toxins like heavy metals into the surrounding water.

African cobalt-rich copper sulfide ore (CRCS) is an important copper-cobalt resource. The CRCS mainly contains chalcopyrite (CuFeS 2), pyrite (FeS 2), and carrollite (CuCo 2 S 4).In our previous study, activated roasting was used to treat CRCS, converting CuCo 2 S 4 into sulfate that is easy to leach Cu and Co. It was found that the kinetics of …

FLOTICOR™ DP sulfide depressants are a safer solution to replace NaSH in copper and molybdenum separation. This new technology is proven in commercial production of molybdenum concentrate, and it will allow you to eliminate the risk of H 2 S exposure while maintaining your molybdenum recovery and grade. FLOTICOR™ DP sulfide …

The common route for turning copper sulfide ores into metal is high temperature oxidation of sulfides to produce an impure liquid copper. This is cast into slab-like …

Metallic sulfide mining — also known as hard rock mining — involves extracting valuable metals, like copper or zinc, from sulfide ores, which are rocks and sediments that contain minerals bonded with sulfur ions. To reach these ores, miners deplete the area's groundwater by pumping it out and then excavate the site using drilling and ...

Low grade copper sulfide ore samples. Low grade copper sulfide ores are obtained from a copper mine, Fujian Province, China, which contain 0.04% free copper oxide, 0.06% primary copper sulfide, 0.64% secondary copper sulfide and 0.01% combined copper oxide. The Cu grade is 0.75%, and most copper are found in …

Copper ore types. 1. Copper sulfide ore: Copper sulfide ore is the most common copper ore, and its main components are cuprous sulfide (Cu2S) and copper sulfide (CuS).This type of ore is of higher ...

mineralogical composition of sulfide copper ore. Table 2 – Mineral composition of sulfide copper ore Mineral (-s) Mass fraction, % Mineral (-s) Mass fraction, % Feldspar 65.71Pyroxene Rare grains Chlorites 19.12Azurite Quartz 7.82 Pyrite Calcite 0.85 Galena Epidotes 0.34 Magnetite Hematite 1.74 Covellite Bornite 1.01 Chalcopyrite

Copper sulfide ore Sudbury area, McKim Township, Greater Sudbury, Ontario, Canada. Hide all sections | Show all sections. About Copper sulfide oreHide. A copper ore where the primary copper ore minerals are sulfides. Unique IdentifiersHide. Mindat ID: 51775. Long-form identifier: ...

Sulfide minerals are the source of various precious metals, most notably gold, silver, and platinum. They also are the ore minerals of most metals used by industry, as for example antimony, bismuth, copper, lead, nickel, and zinc.