Flotation Of NiSulphides

Flotation of Nickel-Copper Sulphide Ore: Optimisation of ...

2020-1-8  (Ni, Cu or Co) recovered. The SN ratio for this scenario was determined using: SN = -10 [ ∑ ( )] (1) Where n is the number of repetition of experiments, and y i this the response value (recovery) of the i experiment. 2. 2. Flotation Procedure All the flotation test-work was done using the Denver laboratory machine with a 1.5l stainless steel ...

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Flotation Of Ni Sulphides - teachenglish

2021-8-2  Flotation Of Ni Sulphides; Provide professional mining equipment. Optimisation of reagent addition during flotation of a ,addition on flotation performance of a nickel sulphide ore. the objectives of the study were to: develop an understanding of the effects of collector and depressant dosage, and its interactive effects, on flotation ...

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(PDF) Flotation of Nickel-Copper Sulphide Ore ...

2014-8-11  Froth flotation is widely used for concentration of base metal sulphide minerals in complex ores. One of the major challenges faced by flotation of these ores is the ever varying grade and...

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Selective sulphidation and flotation of nickel from a ...

2013-12-1  Flotation studies conducted on 60 g samples showed that the sulphides responded to flotation with maximum grades of up to 6–7 wt.% nickel being achieved. Recoveries were approximately 50% on a sulphide basis and it was determined that the low nickel grades were due to

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Flotation of Ultramafic Ni Ore - McGill University

2010-3-17  Flotation of Ultramafic Ni Ore Salah Uddin Research Seminar March 12, 2010. Froth: Sulphides and Ultramafic. 3 Convention flotation 0 2 4 6 0 20 40 60 80 100 Ni recovery (%) Ni grade (%) 20 25 30 35 0 20 40 60 80 100 Ni recovery (%) MgO grade (%) H1 H2L H2U H3L H3U H4 Dai et

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Differential Flotation of Chalcopyrite, Pentlandite and ...

2013-7-18  A new method for the treatment of Ni–Cu sulphides ores from the Sudbury region by differential flotation is presented. The method exploits the ease of chalcopyrite floatability in complete or virtual absence of collector, but in the presence of sulphur dioxide, an effectivecomplexing agent such as diethylenetriamine (DETA) and a frother.

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NICKEL AND COBALT ORES: FLOTATION

2016-6-7  Figure 5 Flotation selectivity in the separation of pentlandite from pyrrhotite using sulfur dioxide and diethylenetriamine with sodium isobutyl xanthate (pH+9.2, 25 g t 1 Dow froth!250). (Reprinted with permissionfrom the CanadianInstitute of Mining, Metallurgy and Petroleum.) Figure 6 Flotation results obtained with Clarabelle ore from

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v115n8a4 Effects on entrainment of serpentines by ...

2015-9-10  This is the case for the copper and nickel sulphides from the Yunnan Mine, China. Previous batch flotation tests of this ore resulted in satisfactory recoveries of 86.92% Cu, 54.92% Ni, and 74.73% Pt+Pd, and concentrate grades of 4.02% Cu, 3.24% Ni, and 76.61 g/t Pt+Pd. However, the MgO content in these concentrates was more than 19%.

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Element ratios in nickel sulphide exploration: vectoring ...

However, because nickel sulphides have a greater concentration of Cu than Zn, the Cu : Zn ratio can assist in discriminating Ni sulphide-bearing zones from those with no Ni sulphides. Combining the Ni : Cr and Cu : Zn ratios has the effect of reducing the influence of particular lithologies (e.g. sulphidic meta-sedimentary rocks) and aids in ...

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Flotation separation of copper sulphides from arsenic ...

2014-11-1  In general, pre-oxidation of flotation pulp and Eh control during flotation are promising options to separate arsenic from other sulphides. Pre-oxidation of flotation pulp utilizes the different floatability of arsenic and other valuable minerals after reacting with oxidizing agents.

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(PDF) Selective flotation of ultrafine nickel sulphide ...

In 16 Min of flotation, Ni grade and Ni recover y were abo ut 8.3% and 58.0%, respectively, in the baseline flotation. With the addition of F68 or L44 in the rougher

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nickel sulphide flotation from serpentine

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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Flotation of Ultramafic Ni Ore - McGill University

2010-3-17  Flotation of Ultramafic Ni Ore Salah Uddin Research Seminar March 12, 2010. Froth: Sulphides and Ultramafic. 3 Convention flotation 0 2 4 6 0 20 40 60 80 100 Ni recovery (%) Ni grade (%) 20 25 30 35 0 20 40 60 80 100 Ni recovery (%) MgO grade (%) H1 H2L H2U H3L H3U H4 Dai et

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(PDF) The flotation of gersdorffite in sulphide nickel ...

The flotation of gersdorffite in sulphide nickel systems--A single mineral study. International Journal of , 2009. Ewen Silvester. Download PDF. Download Full PDF Package. This paper. A short summary of this paper. 37 Full PDFs related to this paper. Read Paper.

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v115n8a4 Effects on entrainment of serpentines by ...

2015-9-10  disseminated Cu-Ni ores bearing high serpentine contents. This is the case for the copper and nickel sulphides from the Yunnan Mine, China. Previous batch flotation tests of this ore resulted in satisfactory recoveries of 86.92% Cu, 54.92% Ni, and 74.73% Pt+Pd, and concentrate grades of 4.02% Cu, 3.24% Ni, and 76.61 g/t Pt+Pd. However, the MgO ...

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High Definition Mineralogy by QEMSCAN: From

2018-5-30  For Flotation Determine the distribution of Recoverable vs. Non-Recoverable elements 1. Ni-Sulphides (Pentlandite, Millerite) vs. Ni in Silicates (Serpentine, Talc) 2. This will help determine the Grade vs. Recovery For Hydromet Determine the Elemental Deportment of desired Element(s) 1. Ni-Laterites -- Leaching parameter can be determined by

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Effects of Process Parameters on Selective Flotation of ...

2012-10-15  probability of fair liberation of sulphides from gangues around 60 mesh but the locking of galena with sphalerite and other sulphides continued to finer sizes. The effects of various parameters like granulomery for rougher and cleaner flotation, pH of the pulp, dosage of collector, depressant and activator were studied in detail.

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Effect of pH on the Recovery and Grade of Base Metal ...

2011-9-10  flotation of base metal sulphides mainly focused on reagent optimization to achieve optimum recovery and grade [2]. In this study the effect of pH and its balance with reagent dosages is examined with the intention of improving flotation performance. The Bushveld complex which is the world’s largest known source of PGMs with very complex

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An Overview of Calcite Recovery by Flotation SpringerLink

2020-9-23  The flotation of sulphides and quartz from calcite is possible while using an amine collector at neutral or mildly alkaline pH values where the amines are present in mono and doubly charged ions. Optimum results were also observed above pH 10, where the neutral amine molecules are in colloidal precipitate form interacting with the sulphides ...

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Separation of polymetallic sulphides by froth flotation ...

The rejection of iron sulphides with other gangue minerals has also been improved, as is shown by the increase in weight percent of the final tailing. The zinc sulphides that have been rejected from the copper concentrate were recovered in a second flotation recovery

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nickel sulphide flotation from serpentine

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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Potential Use of Oxygen Depleted Air In Nickel Sulphide ...

2018-8-20  copper-nickel sulphide ores is stage-wise flotation. The first flotation stage concentrates mainly copper minerals. The copper middling is re-floated to obtain nickel concentrate. During the industrial process of copper-nickel ore, it was observed that significant amount of nickel sulphides was lost to the tailings during the nickel flotation.

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Separation of polymetallic sulphides by froth flotation ...

The rejection of iron sulphides with other gangue minerals has also been improved, as is shown by the increase in weight percent of the final tailing. The zinc sulphides that have been rejected from the copper concentrate were recovered in a second flotation recovery

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Nickel Sulfide Versus Laterite : The Hard Sustainability ...

2009-9-22  Global nickel (Ni) production has increased significantly, including near exponential growth since 1950, from some 10,000 tonnes Ni (t Ni) in 1900 to about 1.6 million tonnes (Mt Ni) in 2007, shown in Figure 1 (including consumption). Based on the present global mining boom led by Chinese demand

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EXCELLENT RESULTS FROM PRELIMINARY

2020-11-24  concentrate grades as high as 22.4% Ni to be collected. However, subsequent flotation resulted in the recovery of iron sulphides, reducing the final concentrate grade to 13.6% Ni at 94.4% recovery. The conditions trialled in Test JR08 cleaner stage were sub-optimal with respect to the depressant dose. Subsequent metallurgical

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One-pot synthesis of porous nickel cobalt sulphides ...

Based on the above analysis, it is clear that Ni–Co sulphides have been successfully prepared by a simple polyol method, in which Ni(CH 3 COO) 2 4H 2 O and Co(CH 3 COO) 2 4H 2 O are used to provide the Ni 2+ and Co 2+, respectively, ethylene glycol serves as the solvent and thiourea is used as the sulfur source for the generation of S 2−.The relevant chemical reactions involved in the ...

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US4880529A - Separation of polymetallic sulphides by froth ...

froth flotation sulphides solution water zinc Prior art date 1988-05-11 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Fee Related Application number US07/192,567 Inventor Srdjan Bulatovic ...

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Positive preliminary metallurgical results at Julimar

2020-8-31  All sulphides in the G1 Zone were shown to float readily under standard conditions at a 75µm grind size. Combined Ni-Cu-PGE rougher concentrates were produced, with grind size and differential flotation variables to be investigated in future testwork to achieve separation of metals.

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A New Process for Cobalt Nickel Separation

2015-11-20  A New Process for Co-Ni Separation – ALTA 2010 5 a high Ni:Co ratio, sufficient to satisfy cobalt purity requirements for LME Grade Nickel. This extraction is achieved using a synergistic mixture of Versatic 10 and LIX 63. There are two basic steps involved, as in any solvent extraction process: extraction and stripping.

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I. PRINCIPLES OF EXTRACTIVE METALLURGY

2012-8-14  mostly oxides and sulphides, example Al, Fe (oxide ores), Cu, Pb, Zn, Ni etc (sulphide ores). (a) land-based (common) (b) shallow sea (beach sand) (c) deep-sea (Ferromanganese nodules) Seawater and natural brines, Ex. Mg and Li Man Made Resources Metallic form -

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