ore oxide sulfide

Sulfur in ore formation

The scheme of metasomatosis and transformation of sulfide ore concentrations into oxide mineralization is the same for liquation and late magmatic deposits. It is presented in Fig. 11 as a variant for late magmatic ore concentrations. The sulfide melt is formed by condensation of sulfur after solidification of the intrusive (see …

The selective chlorination of nickel and copper from low …

The chemical analysis of the ore indicates that nickel in raw ore exists as four shares, nickel sulfate (2.2 wt%), nickel oxide (32.8 wt%), nickel sulfide (38.2 wt%) and nickel silicates (26.8 wt%) which is the refractory part, while copper in raw ore exists as free oxidized copper (13.2 wt%), combined copper oxide (3.2 wt%), secondary copper ...

The leaching kinetics of an oxide gold ore with iodide/iodine …

In contrast, gold extraction from the oxide ore in a solution containing 20 g/L iodide and 4 g/L iodine reached 89% in 24 h. Iodate as the oxidant could not leach any gold in 48 h. Iodine reactions with the sulfide and the ferrous minerals of ore are the main consumers of iodine in solution.

Copper Sulfide

2.1.1 Crystal structure of copper sulfides. Copper sulfide ore, which accounts for 80% of the copper resource, is the major source for the metallic copper [1 ]. The major copper sulfide ores contain chalcopyrite (CuFeS 2 ), bornite (Cu 5 FeS 4 ), covellite (CuS), and chalcocite (Cu 2 S). The concentrates of copper from sulfides ores are ...

Application of Sulfide Copper Ores Oxidizing Roasting

During reaction of sulfide and oxide ore components a matte was obtained suitable for subsequent treatment with separation of nickel, copper, cobalt, and precious metals in the form of finished products. Fig. 6. Production scheme of combined processing for oxidized nickel and sulfide copper ores.

A fresh approach to sulfide ores

Surface oxide deposits are depleting and copper miners are turning their attention to untapped sulfide ores found deeper underground. However, sulfides require more expensive processing techniques since …

A novel process for simultaneously extracting Ni and Cu …

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 …

Gold and Silver Minerals in Sulfide Ore | Geology of Ore …

Abstract—Gold and silver are capable of forming stable natural compounds with different elements. For gold 36 minerals are known: 10 in the class "Native metals, intermetallic compounds" and 26 in the class "Sulfides (selenides, tellurides, arsenides, antimonides, bismuthides)." For silver, 194 minerals are registered in the MMA, …

Current Status of Copper-Ore Processing: A Review

per-ore processing will consist of the rougher flotation with regrinding of the concentrate of the rougher, one recleaner flotation to 80% passing –34 μm and fol-lowed by recleaning. For oxide copper ore and some sulfide ores, a com-bined flotation–hydrometallurgy technology is applied to produce copper concentrate and copper cathodes.

Synchronous extraction of nickel and copper from a mixed oxide-sulfide …

Mixed oxide-sulfide nickel ore is becoming the major source of nickel produced in the nickel smelting enterprise due to the increasing global demand of nickel and the depletion of high-grade nickel sulfide ore.Low temperature roasting technique by ammonium sulfate is a potential cleaner production process with high metal recovery, …

Acid leaching of oxide-sulfide copper ore prior the …

Oxide-sulphide copper ore was sampled from the ore body Cerovo C 1 (south deposit) and used in this study. The c hemical composition of the ore sample is presented in Table 1.

Extraction of Copper and Nickel from Low-Grade Nickel Sulfide Ore …

The deposit has been formed by sulfide segregation from mantle-derived mafic–ultramafic magma;1 the valuable metals such as Cu, Ni and platinum group elements are highly compatible in sulfides.2 The sulfide nickel ore is processed by flotation to produce nickel concentrate, followed by high-temperature smelting and blowing to …

Comprehensive Review on Metallurgical Upgradation …

Mu et al. reported a process for synchronous extraction of nickel and copper from a mixed oxide-sulfide nickel ore in a low-temperature roasting system. In this process, sodium sulfate was used as an additive for improving the extraction of nickel by converting into Na-pyrosulfate, and more than 97% of nickel could be extracted after roasting ...

Flotation of an Oxidized Copper Sulfide Ore

Kansanshi copper mine is situated in the north western province of Zambia. As a result of the mineral variations, the processing plant treats three distinct ore types, viz. oxide, sulphide and mixed.

Copper Ore Types: Sulfides versus Oxides | Nasdaq

There are two main copper ore types of interest, copper oxide ores and copper sulfide ores. Both ore types can be economically mined, however, the most common source of copper ore is the sulfide ...

Copper Mining and Processing: Processing Copper …

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Studies of ore oxide sulfideScienceDirectSulfur in ore formation

WEBSulfide copper ores are the most profitable ores because they have high copper content, and the copper can be more easily separated from the unwanted …

Major Mines & Projects | Minto Mine

At the Ridgetop and Copper Keel South deposits, mineralization is subdivided into a near-surface horizon of supergene oxide, and a lower zone of more typical sulphide mineralization. The supergene copper oxide mineralization is characterized by malachite, chrysocolla, and local azurite. Oxidized magnetite and pyrite are also common.

Microwave roasting and leaching of an oxide-sulphide zinc ore

The oxide–sulphide zinc ore used in this study was obtained from Lanping County of China, and its main chemical composition is shown in Table 1. The zinc phase distribution in the ore is presented in Table 2. As shown in Table 1, Table 2, the oxide–sulphide zinc ore is a refined zinc ore with a zinc content of 35.23%.

Sulfide Mineral Oxidation | SpringerLink

They are found primarily in hydrothermal mineral deposits that occur in numerous geologic environments. The most common sulfide mineral is pyrite; other important sulfide ore …

8 Types of Gold Ore

3. Iron oxide copper gold ore Properties of iron oxide copper gold ore Iron oxide copper gold ore refers to the symbiosis of copper ore and gold ore in gold ore in some form. Its amount is about 10 million to 4 billion tons. IOCG ore contains copper with a grade of 0.2% to 5% and gold with a content of 0.1 to 1.41 grams per ton.

Oxidative pretreatment of refractory gold ore using

The free radicals generated by ultrasound-activated persulfate effectively promoted the oxidation of sulfide in the gold ore. The pretreatment efficiency of this process was higher than that of traditional heat activation, and the oxidation efficiency was two times higher. ... Encapsulated by carbonate/oxide Encapsulated by sulfide …

Gold processing

A large proportion of gold is recovered from refractory ores, and considerable skill is required in the design and operation of such facilities. Gold processing - Mining, Concentrating, Refining: The nature of the ore deposit determines the mining and mineral processing techniques applied. Oxide ore deposits are frequently of such low grade (e ...

Sulfur in ore formation

The physicochemical properties of sulfur determine the formation of deposits of sulfide and post-sulfide oxide ores. This makes it possible to create a unified theory …

Copper Sulfide

Mixed sulfide-oxide ore: Feed: Carrollite, Co 2 CuS 4; malachite CuCO 3 ·Cu(OH) 2; sphaerocobaltite, CoCO 3; kolwezite, Co 2 Cu[(OH) 2 ·CO 3] in dolomite gangue: Description: Flotation of sulphide concentrate as described above. Flotation of separate oxide concentrate as described below

Efficient Synchronous Extraction of Nickel, Copper, …

Introduction. Nickel metal as an important strategic resource, it has been widely applied in batteries, catalysts, and other fields thanks to the extraordinary physicochemical properties....

Flotation of copper oxide minerals: A review

Therefore, it is difficult to recover copper oxide resources efficiently by conventional copper sulfide ore separation method. Malachite is the most common …

Formation of zinc sulfide species during roasting of ZnO …

Sulfidation roasting of low grade lead–zinc oxide ore with elemental sulfur. Miner Eng. 23, 563–566 (2010). Article CAS Google Scholar Zheng, Y. X. et al. Sulfidation roasting of lead and zinc ...

Conversion of Ore into Metal Oxide

The concentrated Ores are still in their original oxide, carbonate, sulphide or halide forms. To obtain pure metals from these chemicals, it is better convert the metal – compounds into oxides. ... Example below shows how zinc blende ore (zinc sulphide) is converted to ZnO by roasting Other types of ores, namely metal – oxide ores and metal ...

Recovery of gold from sulfide refractory gold ore: Oxidation …

The major chemical components of the sulfide refractory gold ore and pyrite are shown in Table 2. The sulfide refractory gold ore (SRGO) contains 30.34% Fe, 22.23% S, 11.19% As, 3.24% Al and 60.25 g/t Au. The total content of Fe, As and S is up to 63% of the sulfide refractory gold ore. The pyrite contains 43.36% Fe and 41.26% S.

12.3: Metals and Ores

Most commercial ores are sulfides, especially chalcopyrite (CuFeS 2), bornite (Cu 5 FeS 4) and, to a lesser extent, covellite (CuS) and chalcocite (Cu 2 S). Cu 2 S, is converted into oxides: 2 Cu 2 S + 3 O 2 …