A method for processing nickel ores with ammonium chloride is considered. The results of thermodynamic calculations for the reactions of the oxide components of nickel ore with ammonium chloride ...
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 the …
Noril'sk-Talnakh three main ore types are: (i) low-sulphide PGE ores in the upper part of the intrusion within the Upper Gabbroic Series 22,37,38,39, (ii) disseminated sulphides, or globular ...
Calculations show that the contact area between serpentine and pentlandite constitutes only 0.15 % of the pentlandite surface area, with virtually no decrease in the positions where EX can be adsorbed. ... The depletion of high-grade nickel sulfide ores has led to an increased interest in low-grade ultramafic ores, which are widely available ...
optimum conditions for the flotation of nickel, copper and cobalt from a nickel-copper sulphide ore. The parameters investigated include collector dosage, percentage solids, depressant dosage and pH.
Extracting nickel from sulfide ore generally refers to the process of melting nickel from nickel sulfide ore into low-nickel matte or leaching nickel into solution. Its metallurgical technologies are primarily concerned with pyrometallurgy and hydrometallurgy. The overall process flowchart of nickel extraction from nickel sulfide ores is
1. Introduction. The nickel–copper converter matte is an intermediate from smelting of sulfide or laterite ores for the recovery of nickel and generally consists of dzharleit (Cu 1.96 S), heazlewoodite (Ni 3 S 2), and some magnetic alloys. 1,2 Hydrometallurgical processes for the Ni–Cu matte led to products with high purity, less …
Komatiites and nickel sulfide ores of the Black Swan area, Yilgarn Craton, Western Australia. ... and weight % sulfide from sulfide mode calculation for diamond drill hole 37F (Silver Swan, 880 m ...
to place in the same deposit. The low nickel content of the present-day nickel sulRde ores renders them unsuitable for either direct smelting or hydrometal-lurgical extraction, thus requiring beneRciation. The usual method of nickel extraction from sulRde ores is through the production of nickel matte after enriching the nickel content of the ore.
Recovery of Nickel and Processing of Magmatic Sulfide Ores. The processing of magmatic sulfide ores differs from laterites: sulfide ores are crushed in multiple steps to separate the ore minerals …
Serpentine (Mg 3 Si 2 O 5 (OH) 4 ) is one of the common MgO-containing silicates occurred in such ores, sulfide ores bearing nickel or copper, magnesite ores and brucite ores and so on, which ...
Nickel resources are typically classified as sulphides or laterites.[1,2] Currently, some 60% of the world's nickel supply is derived from sulphide resources and almost all of the sulphides utilized now are massive sulphide ores, as opposed to disseminated sulphides.[1] The balance of nickel supply
Typically, the differences in calculated sulphide metal contents are less than 0.1 wt%, and are insen-sitive to Ni/Cu variations, except at very low sulphide con-tents. A close fit to …
Table 1 Percentage nickel in nickel sulfide ores . Full size table. Table 2 Table for nickel laterite ore mineral types . Full size table. 2.1.1 Global distribution of Nickel Ore. Nickel laterites are found in Indonesia, Philippines, New Caledonia, and Murrin Murrin in Western Australia. Nickel is mined in more than 25 nations throughout the world.
The Ni–Cu–Platinum Group Element (PGE) sulfide deposits of the Sudbury Structure have provided a major portion of the world's total nickel production and their host rocks have been the ...
While nickel extraction has historically been dominated by the pyrometallurgical treatment of sulphide ores, the relatively high abundance of nickel laterites is now beginning to translate into increased production from this oxidic ore type, which account for approximately 70% of estimated resources, but only 40% of current …
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, …
Orthopyroxene oikocrysts and globular ores are both observed in the Shitoukengde Ni-Cu sulfide deposit within the Eastern Kunlun Orogenic Belt in China. Through the utilization of microbeam X-ray fluorescence (micro-XRF) and electron probe micro-analyzer (EPMA) mapping techniques, complemented by 3D morphology analysis …
Chalcocite (Cu 2 S) is the main source for metallurgical production of copper worldwide but it usually co-exist with nickel sulfide in nature. To develop an efficient and green process for the separation and extraction of valuable metals from high-grade matte, we performed density functional theory (DFT) calculations and experimental studies to …
[1,2] Around 30 pct of global nickel output is produced from sulfide nickel ores ... In the calculations, 100 mass units of normalized Cu–Co–Ni–Fe–S–Mg–Si–O were employed as a basis: Cu 0.42, Co 0.30, Ni 8.99, Fe 36.59, S 25.91, Mg 6.87, Si 6.48, and O 14.44 weight units. These 8 elements accounted for 90.5 mass pct of the ...
This review outlines metallurgical processes for nickel production from various nickel sulfide ores resources, particularly focusing on recent developments in metallurgical processes to identify potential trends and technical requirements in nickel metallurgy. The main methods have been extensively reviewed for nickel extraction …
Flotation of nickel-copper sulphide ore : optimisation of process parameters using Taguchi method ... Effect of some process variables on flotability of sulfide nickel ores. 2002 • Kari Heiskanen. ... is then given by: 113-4 fE = fT - ∑ (7) Fcalc = (8) This is followed by the calculation of the variance ratio (Fcalc) for each parameter ...
Thus, the sulfation roasting‒water leaching process developing an efficient and eco-friendly pathway to simultaneous extraction of Ni, Cu, and Co valuable metals from low grade sulfide ores.
Nickel sulfide ores are broadly classified into the following categories: massive sulfide ore, matrix ore (also termed net-textured ore) and disseminated sulfide …
1. Introduction. The practice of froth flotation, a physico-chemical process based on exploiting differences in surface wettability to effect a separation between valuable and gangue minerals [1], presents the most economical and efficient enrichment method for ores in the mining sector.However, the ever increasing demand for metals and the …
The conventional smelting and refining of Ni sulfide concentrates is an effective strategy for extracting Ni from sulfide ores. However, during the smelting …
In magmatic nickel (Ni) deposits, however, another factor, known as tenor, often makes or breaks a deposit. What is Tenor? Tenor (AKA sulphide metal content) is defined as the concentration of a metal, usually Ni, contained in sulfides. This is the nickel that can actually be extracted from the ore.
The paper presents the results obtained in the thermodynamic modeling of converting copper-nickel matte (11.3 wt.% Ni + Cu + Co, 61.5 wt.% Fe, 25.9 wt.% S) produced by joint smelting of oxidized ...
