Copper sulfide deposition and remobilisation …
Published: 31 January 2024. Copper sulfide deposition and remobilisation triggered by non-magmatic fluid incursion in the single-intrusion Tongchang porphyry system, SE …
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Natural formation of copper sulfide nanoparticles via …
A representative metabolite of reduced organic sulfur is cysteine (Cys), ... Cell-associated copper sulfide nanoparticles formed after 48 h of incubation of the Bacillus sp. TR1 isolated from paddy soil in MSM medium supplemented with cysteine and Cu. (b) Energy dispersive X-ray spectra (EDS) obtained from the cell-associated nanoparticles. ...
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Sulfur-Modified Copper Catalysts for the …
Carbon-supported copper sulfide catalysts were prepared by wet chemistry under He atmosphere. ... (Figure 5; also SI Figure S7) for representative samples with sulfur contents of 0.45 at% and 58.9 at%, …
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The conductivity of chalcocite, the richest copper sulphide
The cuprous sulphide, chalcocite (Cu-- 2 S) with a 79.8% Cu content is the richest and most valuable sulphide of copper (compare chalcopyrite, CuFeS 2, 34.5% Cu), but its conductivity has been little investigated. This article aims to contribute to the limited database with some inductive electromagnetic (EM) measurements.
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Copper Sulfide
The common route for turning copper sulfide ores into metal is high temperature oxidation of sulfides to produce an impure liquid copper that is cast into slab-like anodes. Principal …
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Synthesis and tribological property study of oleic acid-modified copper
Oleic acid-modified copper sulfide nanoparticles were prepared by means of a surface modification technique in absolute alcohol–distilled water mixed solution. Through varying the mole ratio of surface modifier to copper sulfide, a series of nanoparticles were prepared with the mole ratio of 0.5:1, 1:1, 2:1, 3:1.
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Copper Tubing Evaluation in A Natural Gas Environment
criteria shown in Section 2.5 would determine suitability for use of copper tubing in gas stream having similar chemistry. 2.0 SCOPE OF WORK 2.1. Design and Set-up of Copper Tubing Test Rack Assembly The copper tubing test rack assembly was designed to simulate flow conditions that are representative of a typical full-scale residential house …
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Biofilm Formation Is Crucial for Efficient Copper Bioleaching …
For low-grade primary copper sulfide ores, a few industrial bioleaching applications are in the advanced stages to make the copper extraction economically feasible, to some extent, because of our inability to capture the lifestyle and growth development of the leaching microorganisms during copper recovery from actual primary …
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Reversible Copper Sulfide Conversion in …
Representative Na + cation solvated species in the diluted (1 m) and concentrated ... In the first 50 cycles, the characteristic features of copper sulfide entirely disappear in 3.3 m NaFSI-PC and 3.3 m NaFSI …
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Dual-Plasmonic Gold@Copper Sulfide Core-Shell …
Here, we combine Au, a representative free electron metal, with copper sulfides, a class of plasmonic p-type semiconductors, in a core-shell nanoparticle geometry to construct dual-plasmonic hetero-nanostructures displaying unique multiplex optical characteristics dominated by plasmonic hole oscillations in the semiconductor shells, …
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Copper sulfide nanoparticles as high …
Copper (I) sulfide NPs were synthesized using a previously reported method 53. Copper (I) acetate (48 mg), TOPO (1 g) and octadecene (30 ml) were mixed in a three-neck flask, degassed under …
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Leaching analysis of copper and cobalt from sulfide ores in …
The ANOVA indicates that the quadratic model is representative and the R 2 value of 0.92 is valid. ... it is well known that chalcopyrite and other copper sulfide minerals such as enargite are ...
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Copper sulfide nanoparticles as a photothermal switch for …
Here we show that coupling of copper sulfide (CuS) nanoparticles to antibodies targeting TRPV1 act as a photothermal switch for TRPV1 signaling in vascular smooth muscle cells (VSMCs) using near-infrared light. Upon irradiation, ... a Representative TEM images of VSMCs incubated with 0.4 mg mL −1 of CuS-TRPV1 or …
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Copper oxy-sulfide and copper sulfate thin films as …
The morphology of the Cu 2 O and CuS layers is illustrated in Fig. 2, which includes representative AFM images and scan lines that evidence a higher roughness for the sulfide surface.The largest vertical features are ∼15 nm for Cu 2 O and above 30 nm for CuS, in the same order than the respective crystallite size determined by XRD. This …
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Copper (I) sulfide: A two-dimensional …
Abstract. Twodimensional (2D) semiconductor with suitable direct band gap, high carrier mobility, and. excellent openair stability is especially desirable for material applications. …
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Copper sulfide deposition and remobilisation triggered by …
The measured ratios are considered representative of the anhydrite-depositing fluids. ... Pironon, J. et al. Copper sulfide deposition and remobilisation triggered by non-magmatic fluid incursion ...
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Copper(I) sulfide
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. Samples are typically black. Copper (I) sulfide. Names.
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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 ...
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Copper(I) Sulfide
The HBV core antigen (HBcAg) was selectively cut by the chiral copper (I) sulfide (Cu 2 S) NPs (4 0.5) both in vitro and in vivo under light with the wavelength of 808 nm. Due to the binding of Cu 2 S NPs to HBcAg as well as the large ROS …
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Sulfide Minerals
The sulfide minerals represent higher temperatures and a slightly deeper setting than the sulfate minerals, which reflect the oxygen-rich environment near the Earth's surface. Sulfides occur as primary …
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Homogeneous Catalytic Dissolution of Recalcitrant …
According to the chemical formula, chalcopyrite is an iron copper sulfide (CuFeS 2) with the theoretical combination of 34.6% Cu, 30.5% Fe, and 34.9% S (wt%). ... Table 1 shows the XRF and mineralogical analysis of the representative concentrate. Indeed, XRF analysis accurately determined the chemical values of the elements in the …
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Sulfide mineral chemistry investigation of sediment …
Copper sulfides in our study area are composed of nonstoichiometric minerals primarily represented by two-phase djurleite–anilite associations with Cu …
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(a-h) Crystal structures of some representative …
(a-h) Crystal structures of some representative copper sulfide phases. Each crystal phase is shown by its mineral name and composition. Blue and yellow spheres represent …
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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 …
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Synthesis of ternary copper antimony sulfide via solventless …
Copper antimony sulfide (CuSbS 2) 10, copper antimony selenide sulfide (CuSbSe x S 2−x) 11 and copper germanium selenide (Cu 2 GeSe 3) 12 have recently been investigated as both nanoflakes and ...
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Recent progress in copper-based inorganic nanostructure …
Copper sulfide (CuS) is an inexpensive p-type semiconductor material [54] with the band gap of approximately 1.2–2.2 eV. Crystal structures of some representative copper sulfide phases are shown in Fig. 6 a [55].
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Copper(II) sulfide | CuS | CID 14831
Modify: . Description. Covellite is a mineral with formula of Cu 1+ S or CuS. The IMA symbol is Cv. RRUFF Project. Copper (II) sulfide is a chemical compound of copper and sulfur. It occurs in nature as the mineral covellite. Copper is a chemical element with the symbol Cu and atomic number 29.
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Copper sulfide nanostructures: synthesis and …
Synthetic methods for the production of copper sulfide nanoparticles. This review article includes a study of a wide range of nanostructures, including 3D nanomaterials, 2D nanoplates and nanofilms, and 1D …
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Copper leaching from primary sulfides: Options for …
Copper–cobalt sulfide flotation concentrate received from Comika Mining Kamoya project in Congo contains around 24.2% copper, 7.1% cobalt, 22.9% sulfur, 13% iron, and a small amount of other metals.
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Prove It First Law
Copper-sulfide mining is the greatest threat to Minnesota's clean water in decades. Before a copper-sulfide mine in Minnesota could be permitted, the Prove It First Law would require independent scientific proof that a copper-sulfide mine has operated elsewhere in the United States for at least ten years without causing pollution and that the ...
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