Some illustrative calculations show how the major element and trace element compositions of residual melts can be significantly modified by combined assimilation and fractional crystallization in a moving flow. ... The thermal erosion model also provides an explanation of the formation of some nickel sulphide ores found at the bottom of thick ...
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KEY IDEA: Most nickel sulphide deposits have been overprinted by significant post-ore deformation and alteration which can be very significant economically. Deformation can …
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In addition, the systemic exploration of nickel sulfide ores has led to resources that are more challenging to process due to the higher impurities. The processing complexity necessitates the development of new technologies and pathways to sustainably process globally abundant low-grade Ni sulphide ores. This work systematically reviews and ...
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Teck's CESL Nickel Process offers a hydrometallurgical solution for unlocking the nickel from disseminated nickel ore deposits. It is capable of treating lower grade nickel concentrates; …
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Battery manufacturing together with the demand for stainless steel is the biggest driver for the global nickel mining industry. About 60% to 70% of the current worldwide nickel resources are derived from laterites whereas the rest is extracted from nickel sulfide ores [1,2].However, nickel laterites account currently only for about 40% of the global nickel …
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Corrections can readily be performed by simple mass-balance calculations, using concentration data from unmineralized host rocks. Significant uncertainties are introduced by analytical errors for sulphur and metals, which are commonly measured from separate sample aliquots.
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Peter C Lightfoot: Nickel sulfide ores and impact melts: origin of the Sudbury Igneous Complex. Elsevier, 2016, (ISBN 978-0-12-804050-8) US$ 102/EUR 73. Book Review; Published: 09 December 2016; Volume 52, pages 135–136, (2017) Cite this article
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The goal of the present work was to study the recovery of copper, nickel, and platinum group metals (PGMs) (Pt and Pd) from low-grade copper–nickel ore containing pyrrhotite, pentlandite, and chalcopyrite by column bioleaching followed by cyanidation. The ore sample contained the following: Ni—0.74%, Cu—0.23%, Fe—14.8%, Stotal—8.1%, and …
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It is recognized as a metal-excess nickel sulfide mineral (Fleet, 1987). ... is still difficult to determine the uncertainty of the calculated 10 3 ln β 60 – 58 due to lack of measured IR spectra of nickel sulfides. On average, our calculations underestimate the measured Raman frequencies of these Ni sulfides by about 1%. 4. Discussion
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Therefore, we are reporting a new selective chlorination roasting and water leaching process to treat complex nickel sulfide ore. Anhydrous aluminum chloride was firstly used as the solid chlorination agent to sulfide ore. The chlorination mechanism for metals in nickel-copper sulfide ore were determined by thermodynamic calculation and experiment.
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(copper-nickel sulphide ores) Norilsk Division (copper-nickel sulphide ores) Trans-Baikal Division (gold-iron-copper ores) '21 '22 '23 24.6 16.6 25.4 15.0 26.4 15.0 18.4 19.2 7.2 7.0 7.2 For more details on ore production, metal content, and metal recovery percentage in our
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This is an important method to transform the nickel adducts produced from sulphide ores to pure nickel by the technique of electrorefining. During this procedure, nickel of low purity is pushed into solution as the anode in an electrolytic cell and pure nickel is deposited onto a cathode. This method usually attains 99.99% purity.
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Nickel Sulfide Ores Sulfide ores have two major advantages over laterite ores: they are normally easily concentrated using mineral processing ... size and valuable metals recovery is a trade-off calculation. Where it occurs as a nickel mineral of value, awaruite (Ni 3 Fe) can be recovered using magnetic separation in addition to ...
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Nickel sulphide ores containing pentlandite, pyrrhotite and talc have traditionally been treated by bulk sulphide flotation, an approach which seeks to maximise nickel recovery and talc rejection but which does not reject pyrrhotite. ... for the purposes of calculation, we have scaled them down, in proportion, to 8% pyrrhotite and 2.5 % pyrite ...
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The enormous reserves and resources of Ni-Cu-PGE sulfide ores associated with the sublayer and offsets of the SIC are con-sidered to be a consequence of saturation of the Sudbury melt in ...
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The topics discussed include smelting laterite concentrates to sulfide matte, extracting nickel and cobalt from sulfide ores, the slow cooling and solidification of converter matte, extracting ...
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In the nickel sulphide ores, nickel occurs as the discrete mineral pentlandite ((Fe, Ni) 9 S 8 ... in the thermodynamic calculations were not indicated and it appears that ideal beha-
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The Occurrence and Origin of Pentlandite-Chalcopyrite-Pyrrhotite Loop Textures in Magmatic Ni-Cu Sulfide Ores – Barnes et al. 2020. Blade-shaped dikes and nickel sulfide deposits: A model for the emplacement of ore-bearing small intrusions – (OPEN ACESS) Barnes and Mungall 2018
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Nickel sulphide ores containing pentlandite, pyrrhotite and talc have traditionally been treated by bulk sulphide flotation, an approach which seeks to maximise nickel recovery and talc rejection ...
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Re-Os dating on copper-nickel sulfide ores from the Baotan area, Guangxi, yielded an ore-forming age of 982 ± 21 Ma (2σ), which demonstrates that copper-nickel sulfide deposits and their related mafic-ultramafic rocks occurred in the same period of time with the ophiolites in northeastern Jiangxi. Both of them are the products of collision-convergence between the Cathaysian plate …
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For these calculations, data are required for the matte, slag and gas phases. The plant operator needs to process ores of a range of compositions and to achieve the desired …
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Nickel sulfide ores can be classified in terms of the rock types with which they are associated and the tectonic setting into which these rocks were emplaced. Certain combinations of rock type and tectonic setting have proved to be particularly productive. These are (1) noritic rocks intruding an astrobleme (Sudbury); (2) intrusions feeding ...
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The sulfation-roasting-leaching process can be used for processing laterite ore for recovery of Ni and Co. However, the low leaching efficiency of Ni and Co, high sulfuric acid consumption, and the emission of sulfur trioxide (SO3) gas remain challenges. In this study, an integrated process for the co-roasting of limonitic and saprolitic laterite ore using the sulfation …
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Therefore, the main objective of the study was to optimize the process parameters for the flotation of base metals from a nickel-copper sulphide ore. 2. Materials and Methods 2. 1. Materials The nickel-copper sulphide ore used in this study was supplied by Trojan Nickel Mine located in Bindura, Zimbabwe.
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The available nickel resources in the world include three main types, namely nickel sulfide ores, laterite ores, and submarine manganese nodules. ... (DFT) calculations, deduced the possible structures of the precipitates obtained after the neutralization process of nickel laterite ore sulfuric acid leaching residues, providing new insights ...
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Low‒nickel matte as the main intermediate product of nickel sulfide ore in traditional pyrometallurgical smelting, during this process, the valuable metals Ni, Cu, and Co have been enriched 6,7 ...
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The main nickel deposits being developed include sulfide nickel ores of 1-2% Ni and silicate ores containing up to 1% Ni. The most common nickel minerals include: pentlandite (Fe, Ni)S or (Ni,Fe) 9 S 8 the nickel content of which is 22 …
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Request PDF | On Oct 22, 2024, Tom I. Barry and others published Pyrometallurgy of Copper-Nickel-Iron Sulphide Ores: The Calculation of Distribution of Components between Matte, Slag, Alloy and ...
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The work is devoted to the viscosity determination of molten slags from the joint smelting of oxidized nickel and sulfide copper ores. The model slags were synthesized close in composition and structure to real samples, and limiting the investigated composition range (wt.%): iron-containing slag (8.9 CaO, 11.8 MgO, 12.5 Al 2 O 3, 47.4 SiO 2, 13.3 FeO, and 5.0 Fe 2 O …
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• A few nickel sulphide deposits have formed in atypical geodynamic settings associated with convergent margin processes (e.g. Aguablanca in Spain) – most, but not all, of ... >5.5 Pyrrhotite Ores withmonoclinic pyrrhot ite ( Modified by Nal drett et al 1996 after Stekhin, 1994) 4.5 - 5.5 Pyrrhotite Ores with monoclinic pyrr hotite ...
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Sulfide ores. Sulfide ores can be at (or near) the surface or deep underground, and often have additional value streams beyond cobalt such as copper, platinum, and palladium. Together, these can be worth more than the …
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The previous work of Kirjavainen and Heiskanen (2007) also reported that fine serpentine would cause problems in copper-nickel sulfide ores flotation processes, for example, by increasing the viscosity of the pulp. Dispersing agents were commonly used to decrease the coagulation of slurries. ... which was verified by the DLVO calculations.
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Nickel Sulfide Ores and Impact Melts is designed to emphasize concepts that can be applied across a broad range of ore deposit types beyond Sudbury and nickel deposit geology.
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4. 1.1 OCCURRENCE • Nickel is the earth's 22nd most abundant element and the 7th most abundant transition metal • It is a silver white crystalline metal that occurs in meteors or combined with other elements in ores • Two important groups of ores are: Laterites: Oxide or silicate ores such as garnierite, (Ni, Mg)6 Si4O10 OH)8 which are predominantly found in …
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