Direct extraction of copper from copper sulfide minerals using deep eutectic solvents† Syahrie Anggara, a Francesca Bevan, a Robert C. Harris, a Jennifer M. Hartley, ab Gero Frisch, b Gawen R. T. Jenkin c and Andrew P. Abbott * a
Direct extraction of copper from copper sulfide minerals using deep eutectic solvents† Syahrie Anggara, a Francesca Bevan, a Robert C. Harris, a Jennifer M. Hartley, ab Gero Frisch, b Gawen R. T. Jenkin c and Andrew P. Abbott * a
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 anodes. Principal impurities are iron and precious metals (gold and silver). The anodes are electrolytically refined in cells sketched in Fig. 8.There is a resemblance to the cell of Fig. 7.
2012-5-21 · 342 Djurleite, a New Copper Sulphide Mineral the patterns show the same fundamental reflections as those of di genite and bornite (Morimoto and Kullerud, 1959)5), the distribution of subsidiary reflections is quite different. These subsidiary reflec tions, suggesting the existence of some kind of long range ordering, ...
2021-8-12 · Further, through the use of biooxidation, it is now possible to leach many of the copper sulfide minerals present in the ore. While chalcopyrite remains refractory to ambient temperature bioleaching, other copper sulfide minerals - the secondary …
2019-11-8 · Direct extraction of copper from copper sulfide minerals using deep eutectic Green Chemistry ( IF 10.182) Pub Date : 2019-11-08, DOI: 10.1039/c9gc03213d Syahrie Anggara, Francesca Bevan, Robert C. Harris, Jennifer M. Hartley, Gero Frisch, Gawen R. T. Jenkin, Andrew P. Abbott
2021-9-10 · Extraction of copper from complex carbonaceous sulfide ore by direct high-pressure leaching Minerals Engineering ( IF 4.765) Pub Date : 2021-09-09, DOI: 10.1016/j.mineng.2021.107181
2020-2-18 · As ore grades constantly decline, more copper tailings, which still contain a considerable amount of unrecovered copper, are expected to be produced as a byproduct of froth flotation. This research reveals the occurrence mechanism of copper minerals in typical copper sulfide tailings using quantitative mineral liberation analysis (MLA) integrated with scanning electron microscopy–energy ...
Secondary copper sulfide enrichment is widely accepted today as resulting from oxidation of copper sulfide minerals, downward migration of soluble copper sulfates, and precipitation as copper sulfide by reaction with primary sulfide minerals. Chalcopyrite is replaced preferentially to pyrite. Examples of sulfide enrichment above the water table ...
Copper Sulfide - an overview | ScienceDirect Topics
Where oxide and sulphide cobalt-bearing copper minerals occur together, efficient recovery of copper and cobalt is known to be extremely difficult. This study investigates the flotation behaviour of a mixed oxide-sulphide ore where copper is hosted in sulphides phases such as bornite, chalcopyrite and chalcocite, and oxide phases such as ...
2011-8-1 · Controlled adsorption at the surface of copper sulfide minerals… 133 copper (I) sulfide as the model mineral is our interest in copper sulfides. Contrary to most world copper ore deposits, where the main copper mineral is chalcopyrite, in Polish copper ores the main copper-bearing constituents are copper sulfides (Large et al., 1995).
Copper minerals and ore are found throughout the Earth''s crust. They occur in both sedimentary and igneous rocks. The outer 10 km of the crust contains 33 g of copper for every tonne of rock. This is not enough to make it commercially viable to extract the …
：,,,.[J].,2021,11(2):80-86. zhao wei,cui deng-lin,feng ya-hui,YU Li.Mineral phase analysis of copper sulfide concentrate and study on its oxidation mechanism[J] inese Journal ...
Any copper minerals can be utilized in the present process. Copper minerals of the sulfide type are preferred. Examples of sulfide copper minerals are covellite, enargite, tetrahedrite, tennantite, bornite, chalcopyrite, chalcocite, and the like. The copper minerals occur in nature as copper ores.
Sulphide ores are the major sources of base metals like Copper, Lead, Zinc, Nickel and Cobalt. Beneficiation of. these base metal sulphide minerals is predominantl y through the froth flotation ...
1999-1-15 · The zeta potential versus pH curves of the copper sulfide minerals used in this study are presented in Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6 as a function of nitrogen gas, oxygen gas and hydrogen peroxide conditioning. The value of the zeta potential at pH 11.0, the conditioning pH, should reflect the extent of surface oxidation.
2020-9-1 · 1. Introduction. Copper-sulfide minerals, such as chalcocite (Cu 2 S), bornite (Cu 5 FeS 4), and chalcopyrite (CuFeS 2) are important copper resources from copper mines (Fullston et al., 1999).Flotation tends to be used to recover and concentrate these minerals. Flotation is a separation method that uses the surface wettability property (hydrophobicity and hydrophilicity).
In the case of the Minto operation the copper oxide and sulphide minerals occur in separate ore deposits and can be treated separately or blended together. This investigation has shown that using -octyl hydroxamates (AM28 made by Ausmelt Limited) in conjunction with traditional sulphide collectors can successfully simultaneously recover copper sulphides and oxides by flotation from blended ore ...
2020-9-18 · Copper-containing minerals have been extensively used in Fenton-like processes for degradation of pollutants and have exhibited great potential for environmental remediation. This work reports the first use of copper sulfide (CuS), a typical Cu-mineral, for the activation of peroxymonosulfate (PMS) for pollutant degradation; the study also elucidates the underlying mechanism of these processes.
2019-8-28 · Copper and zinc are mainly extracted from sulfide ores using pyrometallurgical techniques. Pyrometallurgical processing of arsenic containing ores is a problem due to the emission of toxic gases (Filippou et al. 2007).Biohydrometallurgy is widely used to process gold bearing concentrates, and may also be used to extract non-ferrous metals arsenic-containing concentrates (Neale et al. 2017).
Process. 1, 141–149. copper sulphide minerals. After 3.5 min only 11.5% of sulphides Castro, S., Soto, H., Goldfarb, J., Laskowski, J., 1974b. Sulphidizing reactions in the had floated and it was only at the last stage of the experiment that flotation of oxidised copper minerals, II. Role of the adsorption and oxidation of sodium sulphide ...
The Sulfide Class minerals comprise an economically important class of minerals. Most major ores of important metals such as copper, lead and silver are sulfides. Strong generalities exist in this class. The majority of sulfides are metallic, opaque, generally …
The application of acidophilic sulfate-reducing bacteria (SRB) for the treatment of acidic mine water has been recently developed to integrate mine water remediation and selective biomineralization. The use of biogenic hydrogen sulfide (H2S) produced from the dissimilatory reduction of sulfate to fabricate valuable products such as metallic sulfide nanoparticles has potential applications in ...
The main copper sulphide minerals are chalcopyrite (CuFeS2) chalcocite (Cu2S), covellite (CuS), bornite (Cu5FeS4), tetrahedrite ((Cu,Fe)12Sb4S13) and enargite (Cu3AsS4). The largest source of copper is from porphyry ore deposits in which one or a combination of the aforementioned minerals occurs. A typical copper sulphide ore contains various ...
Copper exists in a variety of sulfide minerals, of which the most important (quantitatively) is the mixed copper–iron sulfide chalcopyrite (generally notated as CuFeS 2, though a more accurate mineral formulation is probably CuFeS 1.5, as both copper and iron occur in their more reduced ionic forms).
2020-3-3 · Abstract:On the basis of a large number of observation and analysis with optical microscope, combined with scanning electron microscope, X-ray energy spectrum analysis, X-ray diffraction, ICP and chemical phase analysis and other test and analysis instruments, the products of a copper nickel sulfide ore separation process are systematically analyzed, including the mineral composition and ...
2009-6-30 · The varied stoichiometries of the copper sulfide minerals in Kansas probably resulted from phase transformations after precipitation from fluids with slightly varying copper-sulfur ratios. The analyses of samples from drill hole 13 (Table 2) fall within a compositional range that, according to Potter''s study, should contain a djurleite-anilite ...
2021-9-14 · Copper monosulfide is a chemical compound of copper and sulfur. It occurs in nature as the dark indigo blue mineral covellite. It is a moderate conductor of electricity. A black colloidal precipitate of CuS is formed when hydrogen sulfide, H 2 S, is bubbled …
Industrial scale leaching of copper sulfide minerals like chalcopyrite (CuFeS 2) remains a metallurgical challenge alcopyrite is mined worldwide [], given the depths at which mining operations can now be carried out [] pper sulfide is extracted by flotation, followed by the application of pyrometallurgical methods [].Leaching is an alternative metallurgical treatment for chalcopyrite ...
2019-12-13 · Extraction of copper from sufidic ores, either by pyrometallurgy or hydrometallurgy, has various limitations. In this study, a solvometallurgical process for the extraction of copper from sulfidic ore minerals (chalcopyrite, bornite, chalcocite and …
ROASTING OF SULFIDE MINERALS In addition to common metals like copper, lead, zinc, and nickel a number of other metals such as antimony, bismuth, cadmium, cobalt, mercury, and molybdenum occur as sulfide minerals. Sulfides are not reduced with the most widely used redu-cing agents, carbon and hydrogen, because the free energy change for the ...
2021-3-26 · Copper blue is a mineral composed of copper sulfide, and its copper content is 66%. It is an ore for refining copper. Copper blue is blue with metallic luster. It is generally flaky, or it is covered on other minerals or rocks like a film, or it can be like a mass of soot. Copper blue is mainly produced near other copper deposits. How to ...
The Copper sulphides Describe a family of chemical and mineral compounds with the formula Cu X S Y .These compounds comprise economically important minerals and synthetic materials. The most prominent copper sulphide minerals include copper (I) sulfide or cuprous sulfide, of chemical formulaCu 2 S found in the calcosine mineral and the copper (II) sulphide or cupric sulfide of the CuS formula ...
Chalcopyrite is a copper include sulfide mineral has to formula CuFeS2 is usually seed brassy to golden yellow color .Also copper is most important ore mineral thousands of years. Hardness of 3.5 – 4 on the Mohs scale and diagnostic properties streak is black green