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Copper Nickel Flotation

2017-6-15  Cyclic Copper Nickel Flotation Tests. To further clarify the flotation response of the shaft sample, several cyclic tests were carried out. A 6-min grind in the

Flotation of Nickel-Copper Sulphide Ore: Optimisation of

2020-1-8  parameters for the flotation of base metals from a nickel-copper sulphide ore. 2. Materials and Methods 2. 1. Materials 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,

Process mineralogy of copper-nickel sulphide flotation by

2009-11-1   +86-516-83995976; E-mail address: Process mineralogy of copper-nickel sulphide flotation by a cyclonic-static micro-bubble flotation column CAO Yi-jun 1,GUI Xia-hui 1,MA Zi-long 1,YU Xiao-xia 2,CHEN Xiao-dong 2,ZHANG Xiu-pin 2 1 School of Chemical Engineering and Technology, China University of Mining

NICKEL AND COBALT ORES: FLOTATION

2016-6-7  A typical example of a nickel sulRde plant operat-ing with highly Soatable talcose gangue is at Trojan mineinZimbabwe.TheZimbabweansulRdedeposits contain very low grades of nickel (0.6%) and copper (0.04}0.4%). The easily Soatable non-sulRde min-erals dilute the grade of the concentrate and also result in nickel losses into the tailings. This

The effect of crystallochemical peculiarities of nickel

2004-11-19  The FTIR (DRIFT) and FT-Raman studies of the products of copper–nickel ore flotation have recorded the presence of goethite, iron sulphates and sulphur element on the surface of mineral grains. It is a characteristic that the elemental suphur peaks' intensity decreased in the spectra on transition from the concentrate of between-bath to basic

Copper-Nickel ores Danafloat

Separation of the bulk concentrate copper and nickel minerals is generally accomplished by flotation of the copper from pentlandite and nickel-bearing iron sulphides which report to the flotation tails. Pentlandite and iron sulphides are depressed by raising the pH

Development of Copper/Nickel Separation at INCO

2004-1-1  Flash flotation has increased overall nickel and associated precious group metal recoveries. Recovery of both fine and coarse particles has been improved through an understanding of flotation cell hydrodynamics. The separation of copper from nickel in such

The effect of crystallochemical peculiarities of nickel

Flotation kinetics of pentlandite and violarite contained in copper–nickel ores and the effect of crystallochemical peculiarities of the minerals on their flotation features are studied.

IN NICKEL Metallurgists Perth Perth Strategic Metallurgy

selective flotation of copper and nickel sulfides Strategic Metallurgy have demonstrated differential flotation techniques for Western Australian copper and nickel sulfide ores in saline water. Historically, selective flotation of copper from nickel sulfides has been achieved through pH modification; however, this method is rarely efficient

Development of a Combined Flotation and High Pressure

The present study focused on the re-processing of copper and nickel from mine tailings. In this work, recovery of copper and nickel from mine tailing by combined process of flotation and high pressure oxidative leaching were considered. In the first stage, effects of flotation parameters including collector type, collector dosage, and pH and pulp density were examined.

A Comparative Study of Kinetics of Flotation of a Copper

2012-11-30  A Comparative Study of Kinetics of Flotation of a Copper-Nickel Ore by N-Hydrocinnamoyl-N-Phenylhydroxylamine (HCNPHA) Vis-A-Vis Potassium Amyl Xanthate (PAX) R. Natarajan* and I. Nirdosh Department of Chemical Engineering, Lakehead University, Thunder Bay, Ontario, Canada P7B 5E1 * Present Address: Natural Resources Research Institute,

Enhancing flotation separation of chalcopyrite and

2021-3-18  Through flotation of Copper-Nickel Sulfide Ores, the copper-nickel mixed concentrate with copper grade of 4.43% and recovery of 88.18% is obtained. In the pH range of 2–12, the surface of

The effect of crystallochemical peculiarities of nickel

2004-11-19  The FTIR (DRIFT) and FT-Raman studies of the products of copper–nickel ore flotation have recorded the presence of goethite, iron sulphates and sulphur element on the surface of mineral grains. It is a characteristic that the elemental suphur peaks' intensity decreased in the spectra on transition from the concentrate of between-bath to basic

The effect of a novel depressant on the separation of talc

2019-1-21  for flotation separation of copper/nickel minerals, respectively. The Cu/Ni bulk flotation used 1kg ore to obtain a Cu/Ni bulk concentrates. After wet grinding, the desired amounts of reagents were added to the slurry while agitating at about 1900 rpm andthe slurry was conditioned for 6 min.

FLOTATION OF COPPER-NICKEL SULFIDE ORES DAVID

FLOTATION OF COPPER-NICKEL SULFIDE ORES. United States Patent 3667690. Abstract: Flotation of sulphide minerals from their ores is achieved by a process in which two or more conditioning steps are carried out prior to a froth flotation step. The first step comprises conditioning a pulp of the ore in the presence of at least one alkaline agent

Development of a Combined Flotation and High Pressure

The present study focused on the re-processing of copper and nickel from mine tailings. In this work, recovery of copper and nickel from mine tailing by combined process of flotation and high pressure oxidative leaching were considered. In the first stage, effects of flotation parameters including collector type, collector dosage, and pH and pulp density were examined.

The effect of crystallochemical peculiarities of nickel

Flotation kinetics of pentlandite and violarite contained in copper–nickel ores and the effect of crystallochemical peculiarities of the minerals on their flotation features are studied.

Use of Ozone in the Differential Flotation of Bulk Copper

Differential flotation of bulk sulfide concentrates from Duluth gabbro into copper and nickel concentrates could be implemented by first destroying the hydrophobic coating with ozone and then by recovering the copper concentrate with a copper-selective collector. A number of parameters involved in the use of ozone, such as the sequence and the conditioning time of ozone treatment, the pulp pH

AEROPHINE® Applications Solvay

2021-10-26  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.

(PDF) The Effects of Water Recycling on Flotation at a

2020-1-1  flotation circuit will increase the copper and nickel recoveries to fin al copper and final n ickel concentrates, respectively. Figure 20 illustrates the total DNA concentration in raw extracts

A Comparative Study of Kinetics of Flotation of a Copper

2012-11-30  A Comparative Study of Kinetics of Flotation of a Copper-Nickel Ore by N-Hydrocinnamoyl-N-Phenylhydroxylamine (HCNPHA) Vis-A-Vis Potassium Amyl Xanthate (PAX) R. Natarajan* and I. Nirdosh Department of Chemical Engineering, Lakehead University, Thunder Bay, Ontario, Canada P7B 5E1 * Present Address: Natural Resources Research Institute,

Enhancing flotation separation of chalcopyrite and

2021-3-18  Through flotation of Copper-Nickel Sulfide Ores, the copper-nickel mixed concentrate with copper grade of 4.43% and recovery of 88.18% is obtained. In the pH range of 2–12, the surface of

The effect of a novel depressant on the separation of talc

2019-1-21  for flotation separation of copper/nickel minerals, respectively. The Cu/Ni bulk flotation used 1kg ore to obtain a Cu/Ni bulk concentrates. After wet grinding, the desired amounts of reagents were added to the slurry while agitating at about 1900 rpm andthe slurry was conditioned for 6 min.

(PDF) The Effects of Water Recycling on Flotation at a

2020-1-1  flotation circuit will increase the copper and nickel recoveries to fin al copper and final n ickel concentrates, respectively. Figure 20 illustrates the total DNA concentration in raw extracts

Development of a Combined Flotation and High Pressure

2017-5-26  efficiencies of copper and nickel from flotation concentrates and mine tailing. Keywords Mine Tailing, Flotation, High Pressure Leaching, Copper, Nickel 1. Introduction Flotation is of interesting topic in recycling ions by using surficial reactors. Its efficiency is dependent on the hydrophobic and hydrophilic properties of min-

Electrochemistry Encyclopedia -- Extracting metals from

Flotation is also used to split copper and nickel sulfides and separate them from iron sulfides and gangue minerals. Cobalt sulfides appear in the nickel concentrate and the cobalt is subsequently recovered. Flotation has developed from the treatment of simple ores

AEROPHINE® Applications Solvay

2021-10-26  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.

FLOTATION OF COPPER-NICKEL SULFIDE ORES DAVID

FLOTATION OF COPPER-NICKEL SULFIDE ORES. United States Patent 3667690. Abstract: Flotation of sulphide minerals from their ores is achieved by a process in which two or more conditioning steps are carried out prior to a froth flotation step. The first step comprises conditioning a pulp of the ore in the presence of at least one alkaline agent

Recover Molycop

Recommended for a broad range of medium to thick particle flotation including the sulphide minerals of copper, lead, zinc and copper/nickel. Dowfroth 400 Completely water soluble. Recommended for use when there is the potential for the premature rupture

Minerals Free Full-Text The Effect of Hydrodynamic

The maximum copper and nickel recoveries in the 7 cm impeller tests were observed at 93.1% and 72.5%, respectively. However, a significant decrease in the flotation rate of nickel was observed, due to entrainment of nickel in copper concentrate and the slime coating of gangue minerals on the nickel particle surfaces.