Processing oxide-sulfide copper ores using ammonium chloride

The method of processing copper raw material into copper oxide is suggested and investigated. This method is based on the decomposition of copper oxide and sulfide by ammonium chloride with the subsequent leaching of chloride compounds of copper and the precipitation of copper hydroxide from the solution. The …

Fabrication and applications of copper sulfide (CuS) …

1. Introduction. Copper sulfide is a binary inorganic material which has a general formula Cu x S y.It is present in both synthetic materials and in minerals in the form of CuS (covellite) and Cu 2 S (chalcocite). Copper sulfide is one of the most important metal chalcogenide, which has attracted much interest in the recent research due to its …

Copper-processing technologies: Growing global …

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

Copper Sulfide

All copper sulfides require the presence of Fe 3+ and O 2 as oxidizing agents for leaching to occur. The copper sulfide is oxidized by Fe 3+.The resulting Fe 2+ is reoxidized to Fe 3+ by O 2.The Fe(II)/Fe(III) redox couple acts in a catalytic manner in these reactions (shown for elevated-temperature reaction conditions where the sulfur-containing product …

Copper Metallurgy | SpringerLink

13 Accesses. Download reference work entry PDF. Copper metallurgy is the process in which copper metal is extracted from copper ore and secondary resources. …

Copper Sulfide Flotation

Copper Sulfide Flotation Circuit Beneficiation of Copper Sulfide by Flotation Copper, due to the present world demand and price, is of foremost interest to the mining industry. Many new properties are either in the process of being brought into production or are being given consideration. Copper minerals usually occur in low grade deposits and …

Copper Ore Types: Sulfides vs. Oxides

What are copper sulfide ores? Different methods are used to process copper sulfide ores depending on the concentration of copper within the ore — higher-concentrated ores can be separated via ...

A new way of extracting copper

"It is a one-step process, directly just decompose the sulfide to copper and sulfur. Other previous methods are multiple steps," Sahu explains. "By adopting this process, we are aiming to reduce the cost." Copper is in increasing demand for use in electric vehicles, solar energy, consumer electronics and other energy efficiency targets.

Rapid Treatment and Reaction Mechanism of Complexation …

The removal of complexed heavy metals in complexation plating effluents is always a problem. Here molybdenum disulfide/copper sulfide (MoS 2 /CuS) composite was synthesized to activate peroxosulfate (PMS) to treat complexation nickel simulated plating effluents. MoS 2 /CuS showed excellent PMS activation effect. The removal efficiency of …

(PDF) Process mineralogy as a key factor affecting the …

Froth flotation is a physicoc hemical process that has been. A. Bahrami et al., Process mineralogy as a key factor affecting the flotation kinetics of copper sulfide minerals 431. used for more ...

A Review of the Flotation of Copper Minerals

economic to acid heap leach the stockpile. The recovery of these copper minerals by flotation or. hydrometallurgy from ores, typically containing 0.5%TCu (open pit mines) and 1-2%TCu (underground ...

A Review of the Cyanidation Treatment of Copper-Gold …

The production of copper concentrates from copper-gold sulfide minerals by froth flotation generally results in tailings with copper, silver, and gold values. The cyanidation of copper flotation tailings containing sulfides for gold recovery is an example of the formation of cyanide complexes with copper and silver during the leaching …

Typical Copper (Sulphide) Beneficiation Flow …

Multotec specialises in copper (sulphide) beneficiation equipment with over 50 years of global experience and leading technology. Our team of metallurgists and engineers will partner with you to customise your …

Crystalline properties and optical processes in copper sulphide

Copper Sulphide (CuS), is a superior p-type semiconductor with the direct band gap of 1.55–2.15 eV [8] ... The results and discussions of the crystalline and optical process of the synthesized CuS nanoparticles; are presented systematically in …

Ni/Co–Cu Sulphide Ores, Key Contributors to Sustainability …

In some Ni-Cu sulphide ores with low sulphide mineral content, but rich in precious metal levels, processing requires activation rather than depression. Recent work suggests that the ammoniacal solution of copper sulphate is more effective on pentlandite than the copper sulphate itself in the alkaline range [ 54 ].

Copper processing

The first step, mineral processing, is to liberate the copper minerals and remove waste constituents—such as alumina, limestone, pyrite, and silica—so that the copper minerals and other nonferrous minerals of …

Turning Copper Ore into Copper: What are the Processes?

Typical Copper Extraction Process. The process of extracting copper for its ore is quite complex and varied. It largely depends on the type of ore in question, particularly whether it is a sulfide or oxide type. Copper mining has typically been performed through open-pit mining, where stepped benches are dug deeper and deeper …

TENORM: Copper Mining and Production Wastes | US EPA

Ores that contain copper in the U.S. are typically mined in large, open-pits. Copper processing facilities are usually located near mining or extraction sites. Significant waste volumes are associated with copper production. ... Because the pyrite and sulfide minerals are in tailings piles, which have an exposed surface area, they may be ...

Leaching of Copper Sulphides

sulphide leaching options as alternatives to the more conventional pyrometallurgical processing route for copper sulphides. Three copper sulphide leaching and refining processes are discussed: total pressure oxidation, ferric sulphate leaching and copper chloride leaching. Ferric sulphate leaching and copper chloride leaching are carried out …

Copper Sulfide

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 …

Current Status of Copper-Ore Processing: A Review

The amount of copper in copper sandstones and slates varies from 1 to 6%, in sulfide copper-nickel ores from 1.1 to 4.9%, in copper-pyrite ores from 0.1 to 3%, and in copper-porphyry ores from 0.4 to 1.2%. Up-to-date technological solutions, effective reagent flotation schemes, high-performance equipment, and integrated approaches …

Copper processing

Copper processing - Ores, Refining, Smelting: Principal forms in which copper ores are found include native copper, porphyry copper, massive deposits, and mixed ores. ... in the case of sulfide ores, sulfur. The final step, refining, removes the last traces of the impurity elements and produces a copper product of 99.99 percent purity.

Copper Sulfide Ore and Flotation Process

1 Types of copper sulfide ore. (1) Single copper mineral Its ore characteristic is relatively simple, and the only useful component that can be recycled is copper. The gangue minerals are mainly quartz, carbonate and silicate. (2) Copper-sulfur ore Called copper-bearing pyrite. In addition to copper minerals, iron sulfide can be recovered, …

Copper sulfide nanostructures: synthesis and biological …

Another report on the formation of empty copper sulfide nanostructures was dependent on the self-assembly of nanoflakes resulting from the use of a Cu 2+ –thiourea compound and NPs of varying diameter were produced. 25 In addition, both empty Cu x S y nanospheres and nanotubes (5–10 nm diameter) at ambient temperature have been produced. 26 ...

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 …

Sulfide Ore

Heap bioleaching has also been proposed and tried to treat low-grade and difficult-to-process nickel sulfide ores. Application of BioHeap technology to a nickel–copper sulfide ore has been reported [33]. Mt. Sholl copper–nickel deposits (0.9% Cu, 0.7% Ni, 11% Fe, 4% S) in West Australia contain finely disseminated pentlandite and chalcopyrite.

Copper sulfide as an excellent co-catalyst with K2S2O8 for …

Copper sulfide as an excellent co-catalyst with K 2 S 2 O 8 for dye decomposition in advanced oxidation process. / Zhu, Boyuan; Cheng, Hao; Qin, Yong et al. In: Separation and Purification Technology, Vol. 233, 116057, 15.02.2020. Research output: Contribution to journal › Article › peer-review

(PDF) Leaching of Copper Sulphides

Three copper sulphide leaching and refining processes are d iscussed: total. pressure oxidation, ferric sulphate leaching and copper chloride leaching. Ferric sulphate leaching and. copper ch ...

Copper leaching from primary sulfides: Options for …

The Sepon Copper Process was developed for the recovery of copper from the Sepon copper deposit in Laos. The mineralogy of Sepon is complex. ... D.B., Processing of Copper Sulfide Ores by Autoclave Leaching Followed by Extraction and Electrowinning, Australian Patent 749257 (2002). Google Scholar [5] D.B. Dreisinger, G. …

Study on Processing of Copper-Sulfide Concentrate

A combined technology of processing of copper-sulfide concentrate that involves low-temperature chlorinating, burning, and leaching of the burning products with water and aqueous solutions of sulfuric acid is proposed in . A solution of copper sulfate is prepared and blue copperas may be obtained from it. In spite of the fact that the …

Copper Production: How Is Copper Made?

Manufacturing Process of Copper. Copper processing is a complex process that involves many steps as the manufacturer processes the ore from its raw, mined state into a purified form for use in many industries. Copper is typically extracted from oxide and sulfide ores that contain between 0.5 and 2.0% copper.

Copper Sulfide Mining

Copper sulfide mines can cause severe impacts to drinking water aquifers, contamination of farmland, contamination and loss of fish and wildlife and their habitat, and risks to public health. ... and a 2009 spill of 2 million gallons of process water at the Bagdad Mine. At 13 of the 14 mines (92%), water collection and treatment systems have ...

Synthesis and characterization of copper sulfide

ABSTRACT : In this paper, the copper sul fide (CuS) nanomaterial was prepared by a hydrothermal process, using copper. chloride and Thiourea. The copper sulfide (CuS) nanostructure and particles ...

Flotation of copper oxide minerals: A review

1. Introduction. The continuous development of the global economy has resulted in a high demand for copper production and high copper consumption [1], [2], and exploitation and effective use of copper oxide mineral resources have attracted attention [3].Copper oxide deposits evolve from shallow copper sulfide deposits after long-term …

Differences Between Copper Oxide & Copper Sulfide

This flotation process is simple and the cost of beneficiation is low, and it is mostly used in small and medium-sized copper processing plants. 2. One-stage grinding-flotation-coarse concentrate regrinding process: This process flow is most suitable for processing single sulfide ore or copper-molybdenum ore of porphyry copper ore. Due …

Direct extraction of copper from copper sulfide minerals using deep

Here we provide the first demonstration that electrochemistry in Deep Eutectic Solvents can solubilise and directly recover high purity copper from solution from three copper sulfide minerals: covellite (CuS), chalcocite (Cu 2 S) and chalcopyrite (CuFeS 2). Cyclic voltammetry supported by EXAFS identifies the metal speciation in solution.

Copper Mining and Processing: Resources and Glossary

For copper sulfide ore, electrolysis is the final stage in the process of pyrometallurgy, in which anode copper slabs are hung in a large tank full of a copper-based electrolyte solution and an electric current is applied, resulting in the plating of copper onto 99.9% pure copper cathodes.

Leaching of Copper Sulphides

Three copper sulphide leaching and refining processes are discussed: total pressure oxidation, ferric sulphate leaching and copper chloride leaching. The effect of mineralogy …

Copper Ore Processing Plants, Flow And Equipment

A single sulfide ore is usually treated by flotation process, using crushing-grinding-classification-flotation-concentration process to select a single copper sulfide ore as copper concentrate. Copper ore beneficiation process The principle of priority flotation process is: crushing and screening→grinding and classification→priority flotation of …