copper sulfide detailed

Copper(I) sulfide - Wikipedia

Copper(I) sulfide is a copper sulfide, a chemical compound of copper and sulfur.It has the chemical compound Cu 2 S. It is found in nature as the mineral chalcocite.It has a narrow range of stoichiometry ranging from Cu 1.997 S to Cu 2.000 S.

The Effects of Varying Humidity on Copper Sulfide Film ...

2S-induced copper sulfidation at moderate to high RH (RH>50%) occurs in two distinct stages, with Cu 2S as the main corrosion product formed [4,6,7,13]. In stage I of copper sulfidation, the sulfide grows linearly with time. In this stage, the thin islands of copper sulfide that initially form eventually grow laterally and coalesce,

From Ore to Finished Product - Copper

Copper - From Beginning to End. Copper is a major metal and an essential element used by man. 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 Sulfate: Benefits, Side Effects, Dosage, and ...

Copper sulfate is an inorganic compound that combines copper and sulfate. In its liquid or powdered form it's most commonly called basic copper sulfate, BSC copper fungicide, CP basic sulfate, or tri-basic copper sulfate. In its solid, crystal-shaped stone form (known as a pentahydrate) it's known as blue stone or blue vitriol for its blue ...

Copper Sulfate - 1/2 oz Sulfidex | MoreBeer

Copper sulfate solution is used to reduce Hydrogen Sulfide (H2S, or rotten egg smell) in wine. The copper sulfate binds with H2S and causes it to precipitate out as a black residue, the wine can then be racked off the residue. Usage recommendations: Varies depending on the amount of copper sulfate.

POLYMETALLIC VEIN AND REPLACEMENT DEPOSITS (MODELS …

zinc, and copper sulfide minerals that are hosted by and replace limestone, dolomite, or other sedimentary rocks; most massive ore contains more than 50 percent sulfide minerals. Sediment-hosted ore commonly is intimately associated with igneous intrusions in the sedimentary rocks. Emplacement of these intrusions triggered ore formation

Copper Sulphides: Mineral information, data and localities.

GOBLE, R.J. (1980): Copper sulfides from Alberta: yarrowite Cu9S8 and spionkopite Cu39S28. Canadian Mineralogist 18, 511-518. GOBLE, R.J. (1985): The relationship between crystal structure, bonding and cell dimensions in the copper sulfides. Canadian Mineralogist 23, 61-76. British Columbia; Lillooet Mining Division; Bridge River area ...

Copper Sulfide Mining - Earthworks

In 2012, state and federal documents were reviewed for fourteen copper sulfide mines representing 89% of U.S. copper production in 2010 – the most recent data on copper production available from the U.S. Geological Survey. These mines provided a representative view of the types of environmental impacts resulting from the development of copper ...

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 ...

(PDF) Leaching of Copper Sulphides - ResearchGate

In the ten years from 2003 to 2013 global mine production of copper has increased by over 23% to meet demand while the weighted average head grade has dropped from 0.9 to 0.7% Cu.

Copper(I) sulfide | Cu2S - PubChem

Copper sulfide (Cu2S) More... Molecular Weight: 160.17 g/mol. Component Compounds: CID 402 (Hydrogen sulfide) CID 23978 (Copper) Dates: Modify . . ... (only ~ 3.3% companies provided GHS information). For more detailed information, please visit ECHA C&L website. European Chemicals Agency (ECHA) 8 Literature. Help. New Window. 8.1 NLM ...

copper | Uses, Properties, & Facts | Britannica

Oct 28, 2020· Copper is commercially produced mainly by smelting or leaching, usually followed by electrodeposition from sulfate solutions. For a detailed treatment of the production of copper, see copper processing.The major portion of copper produced in the world is used by the electrical industries; most of the remainder is combined with other metals to form alloys.

Disentangling effects of temperature on microbial ...

The lack of knowledge about responses of microbial community to temperature in copper sulfide bioleaching, and subsequent effects on copper extraction hampered understanding of how to improve bioleaching efficiency. This study presents first detailed quantitative data on microbial diversity and dyna …

Mineralogy of Sulfides | Elements | GeoScienceWorld

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 intrusions.

Synthesis of copper sulfide nanoparticles: pH dependent ...

However, detailed study probing the role of pH in controlling phase stability as well as size and shape of nanoparticles has not been reported to the best of our knowledge. In this paper, we report the synthesis and characterization of CuS nanoparticles by varying the pH of precursor solution. ... Copper sulfide nanoparticles were prepared by ...

(PDF) Fabrication and applications of copper sulfide (CuS ...

Copper sulphide is a binary inorganic material which has a general formula Cu x S y. It is present in It is present in both synthetic materials and in mi nerals in the form of CuS (covellite) and ...

Copper(II) sulfide | CuS - PubChem

The carcinogenicity of cupric oxide, cupric sulfide, and cuprous sulfide in 2 to 3 month old Wistar rats /was studied/. Groups of 30-32 rats were given single im injections containing 20 mg of cupric oxide (16 mg copper), cupric sulfide (13.3 mg copper), and cuprous sulfide (16 mg copper) into the left and the right thigh of each rat.All animals were observed for up to 20 months, after which ...

Electrodeposition of nanowires of a high copper content ...

Rietveld fitting (for details see the ESI†) revealed that the annealed nanowires exhibited a phase mixture of the copper sulfide polymorphs digenite 78 and covellite. 79 Krunks et al. 43,45,64 investigated the thermal decomposition of CTC to copper sulfide in thin films, and a detailed study of the equivalent transformation from the CTC ...

Copper(II) sulfate - Wikipedia

Copper(II) sulfate, also known as copper sulphate, are the inorganic compounds with the chemical formula Cu SO 4 (H 2 O) x, where x can range from 0 to 5.The pentahydrate (x = 5) is the most common form. Older names for this compound include blue vitriol, bluestone, vitriol of copper, and Roman vitriol.

Chapter 6 Copper Production Technology

104 Figure Pyrometallurgical Sulfide ores (0.5-2% Cu) I Comminution 1 II I FIotation I Concent rates (20-30% Cu) 1 6-1.-FIow Sheets for Copper Production Hydrometalluigical Oxide and sulfide ores

Copper Manganese Sulfide Nanoplates: A New Two-Dimensional ...

Oct 17, 2017· 1. Theranostics. 2017 Oct 17;7(19):4763-4776. doi: 10.7150/thno.21694. eCollection 2017. Copper Manganese Sulfide Nanoplates: A New Two-Dimensional Theranostic Nanoplatform for MRI/MSOT Dual-Modal Imaging-Guided Photothermal Therapy in the Second Near-Infrared Window.

Sulfide precipitation of heavy metals

A full-scale sulfide precipitation process (Na2S as sulfide source) with a capacity of 1.0 x 106 gallons per day is operating at Boliden Metall Corporation of Sweden to treat smelter (Cu, Pb, Zn smelting) wastewaters. One copper smelter in Japan has a sulfide precipitation process to recover heavy metals as sulfides.

Direct electrochemical reduction of copper sulfide in ...

copper production from copper sulfide was performed in borax electrolyte—which is inexpensive, reusable, and sta-ble in electrolysis conditions—by means of direct electro-chemical reduction (DER) under galvanostatic conditions. Herein, the reaction mechanisms are detailed. The use of oxide-based borax electrolyte eliminated the Cl2 emission

Method of Forming Copper Sulfide Film for Reducing Cu ...

Etching the copper oxide, for example, with the sulfide plasma may transform the copper oxide into, for instance, the mentioned copper sulfide. An implementation of the method of the present invention is summarized in the flow chart of FIG. 8, beginning with a step 210 of forming a semiconductor stack.

Sulfide-Ore Copper Mining and/or A Sustainable Boundary ...

Feb 05, 2020· 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 …

Copper Production: How Is Copper Made? - ThoughtCo

Sep 26, 2019· Sulfide Ores . Virtually all sulfide-type copper ores, including chalcocite (Cu 2 S), chalcopyrite (CuFeS 2) and covellite (CuS), are treated by smelting.After crushing the ore to a fine powder, it is concentrated by froth flotation, which requires mixing the powdered ore with reagents that combine with the copper to make it hydrophobic.

Copper - Element information, properties and uses ...

Copper is not difficult to extract from it ores, but mineable deposits were relatively rare. Some, such as the copper mine at Falun, Sweden, date from the 1200s, were the source of great wealth. One way to extract the metal was to roast the sulfide ore then leach out the copper …

: copper sulfate

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Recovery of Copper from Copper-Containing Sulfide Ores ...

DETAILED DESCRIPTION. ... The copper sulfide mineral is represented by CuS n/2.: CuS n +2nNH 4 Cl+n/2 O2→Cu(NH 3) n Cl 2n +nH 2 O++nS o . Cupric chloride is involved in the reaction for dissolving the copper sulfides and changes to cuprous chloride. The cupric chloride is regenerated by the following reaction and continues to dissolve further ...

Copper Sulfide - an overview | ScienceDirect Topics

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 is sulfate, rather than the elemental ...

Leaching of Copper Sulphides - SAIMM

copper sulphide leaching options as alternatives to the more conventional pyrometallurgical processing route of copper sulphides. Three copper sulphide leaching and refining processes are discussed: total pressure ... More detailed explanations of these and other oxidation reactions are presented by Dreisinger (2006). Ferric Sulphate Leaching