alkaline flotation of copper sulphide
Welcome to the broken dawn

alkaline flotation of copper sulphide

Copper Sulfide Flotation - Mineral Processing Metallurgy

2016-4-13  Copper Sulfide Flotation Circuit The pulp from the Conditioner is treated in a 10-cell “Sub-A” Flotation Machine and a 4-cell “Sub-A” Flotation machine. Sometimes conditioners are not provided; however, their use insures that reagents are thoroughly mixed into the pulp ahead of flotation.

More

FLOTATION OF COPPER AND NICKEL SULFIDES FROM

A method for the flotation of nickel and copper sulphide minerals from talcose bearing ores using an alkaline circuit in which at least one of the alkaline reagents is soda ash or ammonium hydroxide and following conditioning of the pulp with a collecting agent of the xanthate family to activate the nickel and copper sulphide materials, the pulp is conditioned with a flocculating agent to depress the host rock minerals and in which following flotation

More

FLOTATION OF COPPER-NICKEL SULFIDE ORES - DAVID

A process for the flotation recovery of copper and nickel sulphide minerals from ore containing both such minerals by a process in which at least two conditioning steps precede flotation, said processing consisting essentially of (a) conditioning a pulp of the ore in the presence of at least one alkaline agent selected from the group consisting of alkali metal carbonates, ammonium hydroxide, mixtures of these compounds, and mixtures comprising at least one of the compounds and at least one hydroxide selected from the group consisting of sodium, potassium and calcium hydroxides; and then, (b) in the presence of a member of the xanthate family of flotation reagents and a sufficient amount of dispersing agent to maintain the host rock minerals effectively dispersed, further conditioning the said pulp and subjecting same to froth flotation.

More

Flotation of mixed copper oxide and sulphide minerals with ...

2009-3-1  Flotation response for copper sulphide composite using PAX as the copper collector. Total PAX and MIBC doses were 14 g/t and 48 g/t, respectively. Download : Download full-size image; Fig. 3. Copper grade–recovery relationship after one additional stage of cleaning for the copper sulphide

More

Flotation of mixed oxide sulphide copper-cobalt minerals ...

2019-7-1  Bulk flotation experiments with Zambian copper-cobalt sulphide ore showed superior flotation performance, with improved kinetics, when using Sodium Ethyl Xanthate (SEX) as a collector instead of a blend of alkyl dithiophosphate and thionocarbamate collectors, with copper sulphides floating more rapidly than cobalt sulphides (Mainza et al., 1999).

More

(PDF) A Review of the Flotation of Copper Minerals

Sulphide ores are the major sources of base metals like Copper, Lead, Zinc, Nickel and Cobalt. Beneficiation of. these base metal sulphide minerals is predominantl y through the froth flotation ...

More

Copper Flotation - Mineral Processing Metallurgy

2016-5-16  Flotation of Copper Ores In most plants engaged in the flotation of ores containing copper-bearing sulphide minerals with or without pyrite, pine oil is employed as a frother with one of the xanthates or aerofloat reagents or a combination of two or

More

The electrochemical behaviour of copper in alkaline ...

The electrochemical behaviour of copper in NaHCO3 solution (pH 9) and NaOH solutions (pH 14) in the presence of sodium sulphide (10−3 to 5×10−2m) was investigated by using rotating disc electrode and rotating ring-disc techniques, triangular potential scanning voltammetry and potentiostatic steps. When the potential increases from −1.2V upwards, copper sulphide layers are firstly formed ...

More

Oxidative weathering of a copper sulphide ore and its ...

2017-12-9  Oxidative weathering of a copper sulphide ore and its influence on pulp chemistry and flotation S. Jacquesa,⇑, C.J. Greetb, D. Bastinc a Magotteaux Andino SA, Panamericana Norte Km. 37 S/N , Til-Til, Santiago, Chile bMinerals Processing Research, Magotteaux Australia Pty Ltd, PO Box 54, Mansfield Park, SA 5012, Australia cUniversity of Liège, Laboratory of Minerals Engineering and ...

More

The Effect of Oxidation on the Flotation Behaviour of ...

2016-6-14  flotation selectivity and recovery in the processing of complex sulphide ores. It is an inherent part of surface chemical reactions that determine whether the surface fJ.1m formed on a sulphide mineral will act as a hydrophobic or hydrophilic one. Because ofthe highly complex surface

More

Alkaline sulphide leaching of tennantite in copper ...

2021-7-27  High-arsenic copper flotation concentrates, in which the major arsenic-bearing mineral was tennantite, were leached with an alkaline sulphide system. At a pulp density of 5 wt% solids with 100–150 g/L Na 2 S and 50 g/L NaOH, over 91 wt% As was dissolved within 2 h at 100°C.

More

Selectively Depress Copper-Activated Pyrite in Copper ...

2021-1-26  Copper sulphide ore deposits are of great economic significance for copper extraction. In order to enrich copper sulphides, froth flotation at alkaline pH is typically applied to reject associated gangue minerals, in particular pyrite before the subsequent pyrometallurgical treatment to extract copper from copper sulphides [].The selective separation in flotation is driven by a difference in ...

More

The method of flotation of sulfide copper-nickel ores

The method of flotation of sulfide copper-Nickel ores, including grinding and conditioning of the ore in the presence of sulfhydryl collector - dithiocarbonate, the introduction of the first stage of flotation oil-soluble sulfonates of alkaline earth metals and of the expander and stepwise selection of sulfide mniam to

More

Alkaline Sulfide - ResearchGate

common copper sulfide ore with high amounts of arsenic. ... flotation concentrate production at Marca Punta Norte is 125 tonnes of silver/lead and ... 4 through 10 illustrate the alkaline sulfide ...

More

Depression of pyrite in alkaline medium and its subsequent ...

In the flotation of sulphide minerals, copper ions are frequently used as the activators to enhance the adsorption of xanthates on sulphide minerals by modifying the sulphide mineral surface into ...

More

(PDF) A Review of the Flotation of Copper Minerals

Sulphide ores are the major sources of base metals like Copper, Lead, Zinc, Nickel and Cobalt. Beneficiation of. these base metal sulphide minerals is predominantl y through the froth flotation ...

More

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

2020-1-8  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 ...

More

ANALYSIS OF FUNCTION OF COPPER SULFIDE

2021-6-17  Abstract The authors compare the effect exerted by copper ions and sulphide copper nanoparticles on flotation of Gorevka deposit sphalerite using potassium n-butyl xanthate and in reagent-less regime. Covelline-like colloid particles 4–8 nm in size, obtained in interaction of copper (II) and sulfide ions in aqueous solutions, are characterized using the methods of dynamic light scattering ...

More

Oxidative weathering of a copper sulphide ore and its ...

2017-12-9  Oxidative weathering of a copper sulphide ore and its influence on pulp chemistry and flotation S. Jacquesa,⇑, C.J. Greetb, D. Bastinc a Magotteaux Andino SA, Panamericana Norte Km. 37 S/N , Til-Til, Santiago, Chile bMinerals Processing Research, Magotteaux Australia Pty Ltd, PO Box 54, Mansfield Park, SA 5012, Australia cUniversity of Liège, Laboratory of Minerals Engineering and ...

More

Alkaline sulphide leach of arsenic

Alkaline sulphide leach of arsenic Products. As a leading global manufacturer of crushing, grinding and mining equipments, we offer advanced, reasonable solutions for any size-reduction requirements including, Alkaline sulphide leach of arsenic, quarry, aggregate, and different kinds of minerals.

More

Alkaline sulphide leaching of tennantite in copper ...

2021-7-27  High-arsenic copper flotation concentrates, in which the major arsenic-bearing mineral was tennantite, were leached with an alkaline sulphide system. At a pulp density of 5 wt% solids with 100–150 g/L Na 2 S and 50 g/L NaOH, over 91 wt% As was dissolved within 2 h at 100°C.

More

Flotation of Cu and Pb sulfide concentrates containing ...

A process as claimed in claim 1, wherein said lead or lead-copper sulphide concentrate is obtained from an alkaline flotation process wherein the ore or concentrate is beneficiated by substantial removal of zinc values, said concentrate is subjected to a first flotation cleaning to form a first flotation concentrate and a first tailing, said ...

More

Process for the flotation of base metal sulfide minerals ...

A process for the beneficiation of copper sulfide mineral values from base metal sulfide ores with selective rejection of pyrite and/or pyrrhotite or other gangue minerals at pH values of below about 10.0 by froth flotation is disclosed. The process includes the use of a new and improved collector which at pH values below 10.0 exhibits unexpectedly high collector activity for copper sulfide ...

More

Flotation of a copper sulphide ore from Okiep using thiol ...

2009-8-26  Flotation of a copper sulphide ore from Okiep using thiol collectors and their mixtures The Journal of The South African Institute of Mining and Metallurgy VOLUME 105 NON-REFEREED PAPER MARCH 2005 201 Figure 1—The final cumulative copper recovery vs. collector dosage obtained with C2-X, di-C2-DTP and di-C2-DTC in the flotation of the Okiep copper ore

More

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

2020-1-8  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 ...

More

Oxidative weathering of a copper sulphide ore and its ...

2017-12-9  Oxidative weathering of a copper sulphide ore and its influence on pulp chemistry and flotation S. Jacquesa,⇑, C.J. Greetb, D. Bastinc a Magotteaux Andino SA, Panamericana Norte Km. 37 S/N , Til-Til, Santiago, Chile bMinerals Processing Research, Magotteaux Australia Pty Ltd, PO Box 54, Mansfield Park, SA 5012, Australia cUniversity of Liège, Laboratory of Minerals Engineering and ...

More

Challenges in flotation of Cu-Mo sulfide ores in sea water

It is worth mentioning that the mineralogy of copper sulphide ores is a relevant factor in the seawater copper flotation (Castro, 2012; Castro, 2018). For porphyry copper ores with a high presence ...

More

Metallic sulphide and sodium carbonate interacting

2015-12-3  some nonferrous metals (copper, nickel, cobalt and zinc) from sulfide ore by co-firing with a carbonate or bicarbonate of alkali metals, eg, with sodium car-bonate added to mix material for obtaining sulphati - zation reaction. For enriching ore containing copper, nickel, cobalt or zinc sulfide there is used a flotation method.

More

Mineralogical characterization of copper sulfide tailings ...

2020-2-18  As ore grades constantly decline, more copper tailings, which still contain a considerable amount of unrecovered copper, are expected to be produced as a byproduct of froth flotation. This research reveals the occurrence mechanism of copper minerals in typical copper sulfide tailings using quantitative mineral liberation analysis (MLA) integrated with scanning electron microscopy–energy ...

More

The Effect of Oxidation on the Flotation Behaviour of ...

2016-6-14  flotation selectivity and recovery in the processing of complex sulphide ores. It is an inherent part of surface chemical reactions that determine whether the surface fJ.1m formed on a sulphide mineral will act as a hydrophobic or hydrophilic one. Because ofthe highly complex surface

More
Copyright © 2021.Company name All rights reserved.Dawn Broken
E-mail: