floatation of mixed sulphide and oxide ores

floatation of mixed sulphide and oxide ores

(PDF) A Review of the Flotation of Copper Minerals

More recently, it was reported that when using a dithiophosphate collector, 90% of the copper sulphide minerals and 93% of carrollite could be recovered from mixed oxide sulphide ore at ambient pH in a laboratory batch flotation experiment. Final concentrate grades after the sulphide flotation stage were 12.2% Cu and 0.38% Co .

Effect of grinding chemistry on the sulphidisation and ...

Oct 03, 2017· water while heavier ore particles settle down. Ex. Oxygenated Ores. (b) Froth Floatation method This method is mainly employed for the concentration of sulphide ores. The method is based on the different wetting characteristics of the gangue and the sulphide ore with water and oil. The gangue preferrentially wetted by water and the ore by oil.

(PDF) Development and optimization of mixed sulphide/oxide ...

treats three distinct ore types; oxide, sulphide and mixed. The objective of this study was to investigate the floatability of a complex Kansanshi mixed copper ore comprising sulphide and oxide minerals with a view to achieving an optimal flotation performance in the treatment of the Kansanshi ore body. This required an in-depth

Vulcanization flotation of copper oxide ore-News-Kunshan ...

453 Acid leaching of oxide–sulfide copper ore prior the flotation – A way for an increased metal recovery Miroslav D. Sokić1, Vladan D. Milošević1, Velizar D. Stanković2, Vladislav Lj.Matković1, Branislav R. Marković1 1Institute for Technology of Nuclear and Other Mineral Raw Materials, Belgrade, Serbia 2University of Belgrade, Technical Faculty, Bor, Serbia

Copper Sulphide Ore Reagents For Copper Flotation

Froth floatation is based on the principle of the difference in the wetting properties of the ore and gangue particles with the water and oil. This method is used for those metals whose ore gets preferably wet by the oil and the gangue by the water. The sulphide ores …

Mechanochemical sulfidization of a mixed oxide-sulphide ...

Where oxide and sulphide cobalt-bearing copper minerals occur together, efficient recovery of copper and cobalt is known to be extremely difficult. This study investigates the flotation behaviour of a mixed oxide-sulphide ore where copper is hosted in sulphides phases such as bornite, chalcopyrite and chalcocite, and oxide phases such as ...

Flotation Of Mixed Copper Oxide And Sulphide Minerals

Metallurgical ContentSULFURIC ACID AS A SOLVENTTREATMENT OF OXIDIZED COPPER BY AGITATIONSULFUR DIOXIDE AND AMMONIA AS SOLVENTSIRON SALTS AS SOLVENTSOTHER SOLVENTS FOR OXIDIZED COPPERCONTROL OF TEMPERATURE DURING SULFATIONTHE PRECIPITANTELECTROLYSISSULFUR-DIOXIDE PRECIPITATIONHYDROGEN SULFIDE AS PRECIPITANTPRECIPITATION BY HEAT ALONEOTHER PRECIPITANTSMECHANICAL HANDLING OF ORE …

PROCESS OF FLOTATION OF MINTERALS AND ORES - CITREX …

Abstract Sulphidising flotation of oxide copper–cobalt ores with sodium hydrosulphide used as sulphidising agent is common practice in Katanga, Democratic Republic of Congo. From laboratory investigations, sodium hydrosulphide proved to enhance flotation selectivity of copper and cobalt towards the gangue minerals, while ammonium sulphide emerged as a strong non-selective sulphidiser.

Physicochemical studies of oxide zinc mineral flotation

More recently, it was reported that when using a dithiophosphate collector, 90% of the copper sulphide minerals and 93% of carrollite could be recovered from mixed oxide sulphide ore at ambient ph in a laboratory batch flotation experiment.final concentrate grades after the sulphide flotation stage were 12.2% cu and 0.38% co.

Mechanochemical sulfidization of a mixed oxide-sulphide ...

Process of froth flotation of oxide minerals which comprises using at least one of the following collector agents 1. mixed salts of ammonium and amines of the formula: X(coonh 4) 2 (cooh.nr'r"r"') 2 2. ester-sulfonates of the formula: Hx(coor')(coor")(coor"')(coor"")(so 3 m) 3. ester amine salt sulfonates of the formula: Hx(coor) 2 (cooh.nr'r"r"') 2 (so 3 m) 4. sulfonates of mixed salts of ...

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

Three cobalt-bearing oxide minerals are observed in the mixed ore, i.e. heterogenite, kolwezite and cupro-asbolane, while carrollite is the only cobalt-bearing sulphide mineral. A two-stage rougher-scavenger flotation process is used in which sulphides are extracted from the ore first.

Improving the efficiency of oxide copper–cobalt ores ...

Mechanochemical sulfidization of a mixed sulfide/oxide copper ore by co-grinding with sulfur and additives including Mg(NO 3) 2 and Fe(NO 3) 3 salts and iron, aluminum and magnesium powders was investigated for the first time. Also, the influence of sulfidization during the wet-milling process was examined on the separation efficiency and recovery of copper in detail.

A study of the flotation characteristics of a complex ...

The traditional method applied for the flotation of copper oxide or mixed ores is sulphidisation, which was first developed with industrial success on Pb–Zn oxide ores in Australia (Crozier, 1991). The method involves multistage addition of sodium sulphide (Na 2 S), sodium hydrogen sulphide (NaHS), or ammonium sulphide (NH 4) 2

A study of the flotation characteristics of a complex ...

Our plant is a mixed Sulphide / Oxide Copper ore plant with acid soluble ratio in the feed of 14 to 20%. The ore grade is 1.8 to 2.2% Total Copper. The major sulphide mineral is charcalcite, Chalcopyrite,Bornite and covellite are minor contributors. Major Oxide Mineral is malachite, Pseudomalachite,

AN INVESTIGATION OF COPPER RECOVERY FROM A …

The ore mined is from a primary copper sulphide deposit with separate additional deposits of copper oxides. In conjunction with Ausmelt Chemicals, Minto is currently investigating options to recover copper oxide and sulphide minerals using flotation by blending their primary sulphide ore with oxide ores.

A study of the flotation characteristics of a complex ...

Mixed sulphide–oxide lead and zinc ores are most often found in the transition, and occasionally in the oxidised, zones of lead–zinc ore-bodies.

Froth flotation method is used for the concentration of

However, the role of pulp chemistry on the flotation response of mixed ore is poorly understood. Mixed ore consists of a variety of sulphide and oxide minerals, and forms a part of the supergene enrichment zone of sulphide ore bodies. This study highlights the importance of pulp chemistry for mixed ore recovered by sulphidisation and flotation

Effect of Desliming on Flotation Response of Kansanshi ...

transitional ore (called 'mixed ore') could not previously be treated economically due to the high content of high acid-consuming (GAC) minerals. This made it unsuitable for the oxide float–leach circuit, and poor flotation response ruled out the conventional sulphide float circuit. The novel circuit involved a conven-tional sulphide pre ...

Effect of grinding chemistry on the sulphidisation and ...

Three cobalt-bearing oxide minerals are observed in the mixed ore, i.e. heterogenite, kolwezite and cupro-asbolane, while carrollite is the only cobalt-bearing sulphide mineral. A two-stage rougher-scavenger flotation process is used in which sulphides are extracted from the ore first.

Flotation Of Mixed Copper Oxide And Sulphide Minerals

this purpose. However, the role of pulp chemistry on the flotation response of mixed ore is poorly understood. Mixed ore consists of a variety of sulphide and oxide minerals, and forms a part of the supergene enrichment zone of sulphide ore bodies; zones which can be well

Froth flotation method is used for the concentration of

This paper presents the sulfidisation promotion effect of ammonium sulfate on the sulfidisation flotation of both malachite and copper oxide ores. Copper oxide ores are commonly difficult-to-float due to its molecular structure, and adding sodium sulfide as activator is necessary; however, its dosage to the flotation pulp must be strictly controlled, as it is also a powerful depressant for ...

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

Mar 01, 2020· As the high-grade resources (sulphide ore) diminished, the treatment of mixed sulphide-oxide ores can be considered as a significant source. Flotation is one of the most common techniques used for nonferrous metal mineral processing, in which valuable and gangue minerals are separated from each other [ 3, 4 ].

Sulfidisation Promotion Effect of Ammonium Sulfate on ...

Sep 27, 2019· The essence of the vulcanization flotation is to vulcanize the ground copper oxide slurry with a vulcanizing agent, and then add the xanthate collector to float. The vulcanizing agents are: sodium sulfide, sodium hydrosulfide, hydrosulfide ammonia, hydrogen sulfide, potassium sulfide, etc., and the most commonly used is sodium sulfide.

Mineralogical Prediction of Flotation Performance for a ...

xanthate flotation of sulphides and acid leaching of soluble oxide copper. The mixed (transitional) sulphide/oxide ores were stockpiled in the absence of an economic processing route due to their poor flotation response and high gangue acid consumption. Since June 2009, these mixed ores have been treated by flotation using

LIST OF ORES AND THEIR NAMES SULPHIDE ORE

As a result of the mineral variations, the processing plant treats three distinct ore types; oxide, sulphide and mixed. The objective of this study was to investigate the floatability of a complex Kansanshi mixed copper ore comprising sulphide and oxide minerals with a view to achieving an optimal flotation performance in the treatment of the ...