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There are two kinds of copper-nickel sulfide mixed flotation: one is a mixed flotation-direct separation process, the other is a mixed flotation-smelting-high nickel separation process. 1.Mixed ...
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The NiS button can be analyzed directly by LA inductively coupled plasma mass spectrometry (LA-ICP-MS). The main disadvantage of NiS-FA is the relatively large mass of reagents used, which increase the reagent blanks of the PGEs, especially from the used Ni powder. Carbonyl nickel or purified nickel is preferred for fusion.
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The platinum-group elements are extracted by the following process steps: (a) crushing and grinding of the ore; (b) production of a bulk sulphide concentrate that is rich in platinum, …
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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 …
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This review into the effects of grinding and the grinding medium (usually iron-based) upon the flotation performance of copper sulphide minerals has identified and …
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Details of smelting and refining practice are provided for the three largest nickel producers. For completeness, other extractionprocesses involving a mixed sulphide, pellets from the carbonyl process, nickel powders, and briquettes are noted in the compendium of nickel processing practice, which includes pyrometallurgical principles.
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Nickel production was stable at 7118t, but maintenance saw spodumene concentrate output from the Greenbushes mine — where IGO owns 24.99% — fall 14% to 358,000t. That meant costs rose 36% from $262/t to $357/t, with IGO already announcing a drop in output from 1.4-1.5Mtpa to 1.3-1.4Mtpa for FY24.
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DOI: 10.1016/0301-7516(93)90073-J Corpus ID: 98648451; Influence of grinding method on complex sulphide ore flotation: a pilot plant study @article{Forssberg1993InfluenceOG, title={Influence of grinding method on complex sulphide ore flotation: a pilot plant study}, author={K. S. Eric Forssberg and T. V. S. Subrahmanyam and Leif K. Nilsson}, …
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The studies demonstrated that co-processing nickel sulfide concentrate and nickel laterite via pressure oxidative leaching resulted in Ni and Co extractions of 95% …
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Ni and Ni-Cu sulphide ores. Nickel-copper sulphide ores can differ significantly in the mineralogy of both the sulphide and the gangue minerals. Pentlandite is the major source of nickel, and often carries with it cobalt or precious group elements in economic concentration. Vast pentlandite deposits are processed in Canada, Australia, …
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The sulphidation of a nickeliferous lateritic ore was studied at temperatures between 450 and 1100 °C and for sulphur additions of 25–1000 kg of sulphur per tonne of ore. The experiments demonstrated that the nickel could be selectively sulphidized to form a nickel–iron sulphide. It was found that both the grade and the sulphidation degree ...
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Collecting gold and PGE by nickel sulphide fire assay (NiS-FA) into a NiS button was first introduced as a pre-concentration step in the spectrophotometric determination of Os [4]. In the 1970s NiS-FA gained popularity as a pre-concentration method for neutron activation analysis [5], [6], [7], and by 1987, the first report on the ...
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The direct analysis of nickel sulfide fire assay buttons by UV laser ablation ICP-MS was used to determine the platinum-group elements and gold in the following reference …
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The comprehensive studies over three decades on the complex black-schist ore of Talvivaara (Sotkamo, Finland) was driven by the potential of developing a low-cost technology with which to exploit the largest European nickel deposit, some 340 Mt of ore with average grades 0.56% Zn, 0.27% Ni, 0.14% Cu and 0.02% Co (Puhakka et al., …
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Nkomati Nickel JV has experienced a phenomenal growth rate over the past few years, from a 10 kt/month operation in 2006 to a 700 kt/month complex in 2013 This growth required the reengineering of virtually every aspect of the operation, from mining new ore types with new methods, ore preparation and processing, to tailings deposition. Get Price
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The elements osmium, ruthenium and iridium are lost during the standard lead assay and cupellation process. Instead, they have been determined using the nickel sulphide collection technique. The nickel …
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The direct analysis of nickel sulfide fire assay buttons by UV laser ablation ICP-MS was used to determine the platinum-group elements and gold in the following reference materials: UMT-1, WPR-1 ...
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The dry assay of nickel (cobalt being at the same time determined) is based on the formation of a speise which will carry the cobalt, nickel, … See more
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In the first part of this review, a survey of piloted technologies for direct leaching of nickel sulfide concentrates and commercial nickel sulfide operations that …
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The oxidation reaction for pentlandite [(Ni,Fe)9S8] is given below. A similar reaction can be written for other nickel and cobalt sulphides. 4(Ni,Fe)9S8 + 45/2O2 + 18H2SO4 18NiSO4 + 9Fe2O3 + 18H2O + 32S°. Similarly, the copper sulphide species present in the concentrate are also oxidized in the autoclave.
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A similar result was reported by Corin et al. (2018) who used four frequently-used grinding media (stainless steel rods, mild steel rods, 21% chrome steel balls, and forged steel balls) to grind a ...
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Copper Solvent Extraction. The separation of copper from nickel is based on the fact that there is an appreciable difference in the pH at which the two metals are extracted. Copper can be extracted, with very small amounts of nickel, at pH 6.0 to 6.5, while nickel is extracted from the copper raffinate at pH 8.0 to 8.2.
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Nickel Sulphide is one of the important classes of metal sulphides. Nickel sulphide has many phases, some phases are nickel rich and some phases are sulphur rich such as α-NiS, β-NiS, Ni 17 S 6, Ni 3 S 4, NiS 2, Ni 3 S 2, etc. . Out of these phases only two are the most stable phases; one is rhombohedral β-NiS, and hexagonal α-NiS .
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consideration for application to sulphide-poor magnesium rich disseminated nickel-copper ores. Teck's CESL Nickel Process is a well developed hydrometallurgical technology …
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In a standard pane of glass, the estimated risk of a Nickel Sulphide Inclusion is 1m2 in every 10,000m2 of glass (estimated by the GGF). But you can reduce the risk of an NSI breakage by putting the glass through …
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This report describes the investigational work on the development of a fire-assay method capable of concentrating, in a button of nickel sulphide, all six of the platinum-group metals present in samples of ores, concentrates, and mattes. In the method adopted, the sample is fused with a mixture of sodium carbonate, sodium tetraborate, nickel …
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Nickel sulfide deposits (currently the most reliable source for class 1 nickel) account for only 19%, or 18.1 Mt, of the nickel in these discoveries. Given the forecast demand increase for battery-grade nickel in the upcoming years, the pool of quality assets that can easily produce class 1 material is shallow.
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The nickel-copper sulphide ore used in this study was supplied by Trojan Nickel Mine located in Bindura, Zimbabwe. From the X-ray diffraction analysis, the main phases present in the ore were pentlandite (49.4%), pyrrhotite (41.2%) and quartz (4.6%), Fig.1. The ore which was supplied in lumpy form was subjected to crushing and grinding.
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Abstract Supercapacitors are favorable energy storage devices in the field of emerging energy technologies with high power density, excellent cycle stability and environmental benignity. The performance of supercapacitors is definitively influenced by the electrode materials. Nickel sulfides have attracted extensive interest in recent years …
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The acid leaching of fine ground nickel sulfide concentrate under atmospheric pressure was studied. The leaching experiments were performed with a pyrrhotite containing nickel sulfide concentrate and ferric ion as oxidant. The effects of attrition grinding, leaching temperature, concentration of sulfuric acid as well as …
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