The flotation of nickel sulfide ore having serpentine and talc as the main gangue minerals, is severely affected by features such as, containment and sliming. If the MgO content is greater than a certain percentage (typically 6.8%), the melting point and viscosity of the slag increases, thus resulting in higher operating temperatures, and ...
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the flotation recovery of Ni, Cu and Co from a nickel-copper sulphide ore. The effect on flotation performance of various parameters such as pH, collector dosage, % solids and depressant dosage at different levels was investigated. Therefore, the main objective of the study was to optimize the process parameters for the flotation of base metals ...
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These two methods were used in combination in the flotation of Jinchuan nickel sulfide ore and the metallurgical performance was significantly improved: nickel recovery increased from 82.97% to 86 ...
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Nickel ore dispersion before flotation using different reagents was investigated on a bench scale to improve metallurgical recovery and selectivity. The nickel ore had a content of 0.8 pct nickel and 14.5 pct MgO. A positive linear correlation between MgO and Ni was found. Carboxy methyl cellulose, both pure and combined with …
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Sulfide ore is concentrated using a fairly simple electrochemical flotation technique. ... Unlike sulfide ore, laterite ore must be completely molten or dissolved to enable nickel …
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1. Introduction. Pentlandite flotation in Western Australia has historically been difficult due to a low nickel grade and large amounts of serpentine minerals (Senior and Thomas, 2005).The hypersaline water used in the flotation plants makes the traditional serpentine dispersants ineffective (Wellham et al., 1992).In the past 10 years, many …
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DOI: 10.1016/J.MINPRO.2005.08.001 Corpus ID: 96573710; Development and implementation of a new flowsheet for the flotation of a low grade nickel ore @article{Senior2005DevelopmentAI, title={Development and implementation of a new flowsheet for the flotation of a low grade nickel ore}, author={Geoffrey David Senior …
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The pressure for saving water by closing the water loops in mineral processing is increasing continuously. The drivers for higher recirculating rates include …
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The maximum nickel recovery of 35% was achieved at pH of 10.5 which indicated that the nickel sulphide ore has good floatability at alkaline pH range. It was also observed that the recovery of nickel increased with flotation time and the highest recovery was obtained at flotation time of 15 minutes.",
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The reagent practice in the flotation of nickel and copper–nickel ores depends on three basic factors: mineralogy of the ore, flowsheet employed in the treatment of a specific ore, and degree of ...
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As we look to the future, the mining industry faces a myriad of challenges. While demand for metals like copper, cobalt, lithium and iron ore is projected to reach record highs by 2050, ore grades are decreasing, …
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The low-grade copper-nickel sulfide ore for flotation tests was from Yanbian Mine, Sichuan Province, China. The main compositions of the ore were 0.45% Cu, 0.63% Ni, 28.96% MgO and 33.12% SiO 2. The main sulfide minerals were pentlandite, chalcopyrite, and pyrrhotite. The main gangue minerals were serpentine, pyroxene, …
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According to process mineralogy, Jinping ore is a typical refractory nickel ore, containing 0.634% nickel and 0.329% copper. The ore contains a large number of gangue minerals, such as chlorite, mica, and others, which have a …
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The financial benefits from the project were substantial and immediate. The improved recovery increased nickel production by over 6000 t.p.a. for a small increase (A$0.10/t of ore) in operating cost. At the nickel price at the time, the project paid for itself within a month. At longer term nickel prices, the increase in NPV was over A$300 million.
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Flotation of cobalt sulfide ores can be best achieved at acidic pH (~. 4) with xanthate collectors and at pH of about 7.5 for oxide ores with nitrosonaphthol chelating …
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Abstract Tecflote non-ionic organic agents are investigated as potential flotation collectors for copper–nickel sulfide ores. Adsorbability of four Tecflote agents having different-structure alkyl radicals and different numbers of functional groups is analyzed. The efficiency of the agents toward copper- and nickel-bearing minerals is …
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It should be added that segregation of laterite ores prior the flotation process has shown some improvement in upgrading nickel. The segregation process …
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The absolute nickel recovery is based on the total nickel content of the ore, while the recoverable nickel is based on the amount of nickel sulphide present after sulphidation. The overall economics and suitability of the process relies on the total nickel recovery, whereas the flotation performance should be assessed on the recoverable …
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Nickel flotation is a very complex industrial process with hundreds of data parameters throughout the production of nickel ore flotation, and there is often a strong coupling between these parameters and variables, and even a lot of repetitive information between these variables. If these data are used directly in the modelling, the algorithm ...
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16.1 ORE TYPES AND MINERALOGY. There are more than 45 different nickel minerals, but only a few are of economic importance. Table 16.1 lists some of the most important …
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These two methods were used in combination in the flotation of Jinchuan nickel sulfide ore and the metallurgical performance was significantly improved: nickel recovery increased from 82.97% to 86 ...
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DOI: 10.1016/J.MINENG.2012.05.022 Corpus ID: 98076614; The effect of conditioning methods and chain length of xanthate on the flotation of a nickel ore @article{Feng2012TheEO, title={The effect of conditioning methods and chain length of xanthate on the flotation of a nickel ore}, author={Bo Feng and Qi-ming Feng and Yi …
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Concentrating the nickel ores usually takes place close to the mine site and involves chemical and physical processes to crush the ore and separate the nickel-bearing and gangue minerals by flotation in the case of sulfidic nickel ores.
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Flotation results in Fig. 1 indicate that separation of pentlandite from Jinchuan nickel ore by flotation is difficult. Under the standard flotation test conditions, the Ni recovery reaches only 65% after 15 min flotation.This result illustrates that hydrophilic serpentine slimes interfere with the flotation performance of pentlandite.
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The majority of the works performed on the sulphidization assisted flotation dealt with the copper mineral and ores [e.g. [6][7][8][9][10][11][12] while the investigations on nickel bearing oxide ...
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This study aimed to show the flotation behavior of a nickel sulfide ore in a cyclonic flotation column. The flotation experiments were carried out using a sample of nickel sulfide ore obtained from a mineral processing plant of China. Representative samples collected from the feed, concentrate, tailing, and circulation middling were sieved using a …
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In this study, the effect of different pyrrhotite flotation rejection strategies (artificial oxidation and TETA: SMBS addition) are evaluated on a magnetic (Ore A) and non-magnetic (Ore B) pyrrhotite ore to determine if either may effectively depress and potentially passivate the pyrrhotite surface during flotation to produce benign tailings ...
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Classical methods for nickel recovery are precipitation, oxidation, and crystallization. Nickel and sulfate tend to build up in the copper refinery electrolyte and can be removed by crystallization as …
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Therefore, in flotation of a nickel ore containing a large amount of lizardite (46% w/w), SHMP usage is not suitable at the roughing stage due to the fact that lizardite in the pulp will consume ...
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Relationship between nickel grade and sulphur grade for the flotation tests for 65 kg S/tonne ore and 100 kg S /tonne ore. 2 Head grade to float cell 1 1.6 0 0 10 20 30 40 50 60 FT03 FT04 1.4 Gangue Recovery (%) Cumulative Recovery (%) Fig. 16.
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