nickel flotation performance

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

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

NICKEL AND COBALT ORES: FLOTATION

III/NICKEL AND COBALT ORES: FLOTATION 3493. 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,

Improving the Flotation Circuit Performance Using ...

Jan 01, 2018  Froth flotation is used to produce nickel and copper concentrates. As is the case at other operations, the presence of magnesium is detrimental to the flotation products. In the past year, the exploitation of a new deposit has increased magnesium in the feed. Thus, it has been challenging to meet the required ratio in the final nickel concentrate.

Optimisation of Reagent Addition during Flotation of a ...

addition on flotation performance of a nickel sulphide ore. The objectives of the study were to: 1. develop an understanding of the effects of collector and depressant dosage, and its interactive effects, on flotation performance and 2. determine the effect of stage dosing collector and depressant on flotation performance.

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

This section gives a summary of the findings for t he flotation performance of nickel, copper and cobalt in the supplied sulphide ores. It is al so dedicated to the analysis of data and ...

Elimination of the adverse effect of cement filling on the ...

Dec 01, 2014  In this work, the effect of the cement filling on the flotation performance of a nickel ore was studied and ammonium sulphate was used to eliminate this adverse effect. The flotation result shows that the pentlandite recovery decreased from 87% to 65% with the increase of the content of cement filling from 0% to 8%.

Comparative Study of the Effect of Frothers on the ...

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 ...

Copper Nickel Flotation

The Bureau of Mines investigated the flotation responses of two copper nickel ore samples from the Duluth Complex with the objective of recovering bulk sulfide concentrates. One of the ores studied was taken from a test pit; the other was taken from a test shaft. The samples were quite similar except that the pit sample analyzed 0.35 pct Cu and 0.11 pct Ni and the shaft sample analyzed 0.69 ...

EFFECT OF PULP RHEOLOGY ON FLOTATION: THE NICKEL

Table 4. 2 Effects of oil on flotation performance. .....45 Table 4. 3 Casson yield stress values versus solids content. .....51 Table II- 1 The effect of dispersant addition on flotation performance

role of sodium hexametaphosphate in flotation of a nickel ore

) on flotation of pyrite (Lu et al., 2011). However, whether SHMP has the same effect in the flotation of a nickel ore or not has not been studied yet. For this purpose, the objective of this study is to find out the role of SHMP in the flotation performance of a nickel ore. Experimental Materials and methods

Elimination of the adverse effect of cement filling on the ...

Dec 01, 2014  In this work, the effect of the cement filling on the flotation performance of a nickel ore was studied and ammonium sulphate was used to eliminate this adverse effect. The flotation result shows that the pentlandite recovery decreased from 87% to 65% with the increase of the content of cement filling from 0% to 8%.

Nickel and Cobalt Ores: Flotation - ResearchGate

The latter may be problematic when intergrown inclusions of pentlandite or nickel in solid solution are present (Rao, 2000). Rejecting hexagonal pyrrhotite may be achieved by (i) staged flotation ...

(PDF) Nickel Ore Dispersion Evaluation and Consequences in ...

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 ...

The Application of High Intensity Flotation Technology at ...

historical poor performance treating slimes with conventional flotation, it is clearly best practice to challenge the status quo through innovative new technology, such as the StackCell. INTRODUCTION Mt Keith nickel concentrator The Nickel West Mount Keith Operation (NMK) consists of a large, low grade disseminated nickel

Comparative Study of the Effect of Frothers on the ...

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 ...

Froth flotation - Wikipedia

Froth flotation is a process for selectively separating hydrophobic materials from hydrophilic.This is used in mineral processing, paper recycling and waste-water treatment industries. Historically this was first used in the mining industry, where it was one of the great enabling technologies of the 20th century.

The Critical Role of Pulp Density on Flotation Separation ...

The results revealed that rheology, which is caused by pulp density, played a key role in flotation performance. The decline in density (from 40 wt % to 20 wt %) increased the nickel and copper recoveries from 70.7% to 79.5% and 82% to 85.4% respectively in the artificial mixture (1:1).

Copper activation option for a pentlandite–pyrrhotite ...

May 30, 2016  Different sulphide ores respond differently in the prospect of copper activation to thiols for froth flotation. With the BCL Selebi-Phikwe ore body, pentlandite–pyrrhotite–chalcopyrite co-occur and there is the constraint of fine pentlandite dissemination in the pyrrhotite, so that liberation is limited. In the presence of pentlandite, pyrrhotite can even be galvanically depressed.

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

The flotation of gersdorffite in sulphide nickel systems--A single mineral study. Download. ... The performance of weight of the individual flotation charges (gersdorffite composite plus the electrode system was checked using a standard ferric–ferrous quartz) was 500 g. ...

Enhanced methods for nickel recovery from low-grade ores ...

The second stage of froth flotation produces a nickel concentrate of 10-20% Ni, along with other by-products and gangue. Smelting is the next stage, designed to recover as much metal as possible. Flash smelting is a common method: dry concentrates are fed into a furnace and heated to a liquid matte and slag. ... when certain impurity ...

Metallurgical Report Confirms Significantly Improved ...

Improved Flotation Performance (VANCOUVER) – Hard Creek Nickel Corporation (TSX – HNC) announced today the Company is in receipt of a Metallurgical Report, authored by Mr. Mike Ounpuu, which confirms significantly improved flotation performance for the 100% owned Turnagain Project.

effect of slimes on recovery of copper flotation

effect of slimes on recovery of copper flotation. Effect Of Clay Slimes On Copper, Molybdenum Flotation From . The results of the research work showed that there may be several possible ways of reducing the detrimental affects of clay slimes on flotation, some of which include a use of alternative flowsheets, b flotation at reduced pulp density, and c the use of special frothers.

EFFECT OF PULP RHEOLOGY ON FLOTATION: THE NICKEL

Table 4. 2 Effects of oil on flotation performance. .....45 Table 4. 3 Casson yield stress values versus solids content. .....51 Table II- 1 The effect of dispersant addition on flotation performance

The Application of High Intensity Flotation Technology at ...

historical poor performance treating slimes with conventional flotation, it is clearly best practice to challenge the status quo through innovative new technology, such as the StackCell. INTRODUCTION Mt Keith nickel concentrator The Nickel West Mount Keith Operation (NMK) consists of a large, low grade disseminated nickel

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

The flotation of gersdorffite in sulphide nickel systems--A single mineral study. Download. ... The performance of weight of the individual flotation charges (gersdorffite composite plus the electrode system was checked using a standard ferric–ferrous quartz) was 500 g. ...

Ultrasound Use in Copper-Nickel Sulphide Flotation

Jan 01, 2005  Performance Enhancement of Semi-Autogenous Grinding Mills Th The Use of Gas Dispersion Measurements to Improve Flotation Ultrasound Use in Copper-Nickel Sulphide Flotation Flotation Control Based on Froth Textural Characteristics Using the SUPASIM Flotation Model to Diagnose and Understand

Flotation Developments Best Practice - International Mining

Huntsman Performance Products has developed The POLYMAX®T10 and POLYMAX T12 low molecular weight liquid dispersants that have been shown to improve mineral recoveries and concentrate grades in the flotation of copper, copper gold, gold, carbonaceous gold, nickel, phosphate ores

Increasing Efficiency of Pechenga Rebellious Copper-Nickel ...

The main causes of insufficient nickel recovery at the accepted modes of processing are determined. With a view to increasing concentration efficiency of this ore, different milling and flotation modes are considered. Ways to improve processing performance of this-type ore are identified.

Outotec FloatForce retrofit significantly improved ...

Apr 25, 2018  By improving flotation hydrodynamics and pumping performance at high air-dispersion rates, the FloatForce enhanced particle recovery in the flotation cell while at the same time reducing power consumption and the risk of sanding. The energy savings were measured at an 8% saving per cell with an extended rotor wear life.

Redox potential control during flotation of a sulphide ...

Aug 15, 2017  The critical role of dissolved oxygen on the flotation of sulphides has been widely reported (e.g. Buckley and Woods, 1997).The oxygen may also undergo reduction according to reaction . (4) O 2 + 2 H 2 O + 4 e-↔ 4 OH- Given the role of pH already alluded to it is clear that redox potential, which is a function of pH and DO, is a key indicator of the condition of a pulp with respect to its ...

OutOtec HydrOmetallurgical Nickel PlaNts aNd PrOcesses

Outotec nickel technologies comply with environmental legislation and requirements. Involving Outotec in your projects at an early stage ensures the smooth environ-mental performance of the nickel production chain. Outotec will design the most favorable and environmen

Metallurgical Report Confirms Significantly Improved ...

Improved Flotation Performance (VANCOUVER) – Hard Creek Nickel Corporation (TSX – HNC) announced today the Company is in receipt of a Metallurgical Report, authored by Mr. Mike Ounpuu, which confirms significantly improved flotation performance for the 100% owned Turnagain Project.

Applications Solvay

Sequential Copper-Nickel Flotation. In sequential flotation, pH is raised to pH 11 with lime and a starvation dosage (6 g/t – 15 g/t) of AEROPHINE Ⓡ 3418A promoter is used. This allows selective flotation of a high grade copper concentrate with minimal nickel content. Slurry pH is then reduced to about pH 9 and a nickel concentrate is produced.

Productive froth flotation technology FLSmidth

A flotation circuit’s performance is affected by both pulp and froth phase recovery. And it is inherent in mining operations that manual control by operators who look at the cell surface periodically and then take action does not really maintain stable operating conditions. Our ECS/FrothVision automation system is designed specifically to ...

High Precision, Advanced nickel ore flotation machines ...

The nickel ore flotation machines machines up for sale are from the leading sellers and trusted manufacturers who assure outstanding quality and steady performance for a long time. These motor-operated nickel ore flotation machines machines are available in various distinct models and their capacities may vary for each.

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