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alkaline flotation of copper sulphide

Copper Sulfide Flotation - Mineral Processing Metallurgy

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.

Mining Industry Copper Sulfide Ore and Flotation Process ...

Jul 09, 2019  1 Types of copper sulfide ore (1) Single copper mineral Its ore characteristic is relatively simple, and the only useful component that can be recycled is copper. The gangue minerals are mainly quartz, carbonate and silicate. (2) Copper-sulfur ore Called copper-bearing pyrite. In addition to copper minerals, iron sulfide can be recovered, and the main mineral of sulfur is pyrite.

(PDF) A Review of the Flotation of Copper Minerals

A Review of the Flotation of Copper Minerals. ... This plant produces a copper sulphide flotation concentrate and also recovers some of the residual gold and silver in the tailings. Since February ...

alkaline flotation of copper sulphide

Flotation where possible is carried out in a alkaline medium as most collectors including xanthates are stable under these conditions [1] treated For example the cost of lime in sulphide minerals flotation is roughly double the amount of the collector used their selective flotation from lead or copper

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Gold Sulphide Ore Oxidation by Alkaline Pressure

Experimental ProceduresResults and DiscussionProposed Process FlowsheetThe pretreatment was conducted in a standard 2-L AISI Type 316 stainless steel autoclave with a glass liner and equipped with a 1.5 kw heater and 50 w stirring motor. The head incorporated a stirring assembly, a 100 psig full scale pressure gauge, a thermowell, a solution sampling tube, and a gas inlet and outlet. The stirrer consisted of a 5 cm, six-blade turbine-type impeller positioned at the end of the stirrer shaft and near the bottom of the vessel. A stirring speed of 600 rpm was suffic...

Biogenic Sulphide Reagent in Hydrometallurgy

replacement of sodium hydrosulphide for use in the separation of copper and molybdenum in flotation. Biogenic sulphide, produced on demand at site, offers significant cost savings and provides the additional benefit of improved safety due to the elimination of the transportation, handling and storage required for chemical sulphide reagents.

THE ALKALINE SULFIDE HYDROMETALLURGICAL SEPARATION ...

2.2 Selective Recovery of Gold from Alkaline Sulfide Solutions In the example cited above, it is essential in that any gold leached in the alkaline sulfide solutions be recovered. As shown in Figure 3, gold is soluble in the alkaline sulfide system. Gold lixiviation is the result of leaching by polysulfides and sulfides as shown in equation 8.

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

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).

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

Flotation where possible is carried out in a alkaline medium, as most collectors including xanthates are stable under these conditions [1]. ... treated. For example: the cost of lime in sulphide minerals flotation is roughly double the amount of the collector used, ... their selective flotation from lead or copper

copper lead sulphide separation

Alkaline Flotation Of Copper Sulphide 2019-6-12 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 of them as the promoter.

copper lead sulphide separation

Alkaline Flotation Of Copper Sulphide 2019-6-12 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 of them as the promoter.

Sulphide Flotation - an overview ScienceDirect Topics

The copper-bearing eluate is returned to the leaching circuit, while the gold eluate is either electrowon or precipitated. Jeffrey et al. (2008b) also reported gold recoveries of >95% from a pressure-oxidized flotation sulfide concentrate. In this work, an integrated RIP process was tested, using a gold thiosulfate process incorporating a novel ...

Froth Flotation of Copper - YouTube

Sep 12, 2012  Copper is recovered by Froth Flotation in the mini float plant. Standard rougher and cleaner circuit. Nice clean metallurgy from the 1% copper rock.

Pyrite Depression In Copper Flotation

Flotation of copper at different alkaline pH from 7 up to 10 and using different Xanthates as collector vs recovery of copper may give some clue. Minimum Pyrite obtained in copper concentrate is the starting point for further flotation testwork. ... In copper sulphide flotation, copper adsorbs on pyrite through superficial oxidation of the copper .

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

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 ...

Flotation of Copper Sulfide Ores - PDF Free Download

Flotation of Copper Sulfide Ores 6. Titley, S.R., Characteristics of High Temperature Massive Sulphide Ores in the United States, Mexico and Peru, In (R.V. Kirkham and W.D. Sinclair eds) Mineral Deposit Modelling, Geological Association of Canada, Canada, pp. 585–592, 1993.

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.

Flotation Reagent Chemical, Froth Collectors, Mineral ...

Used as an effective collect or for the flotation of lead copper and silver sulfide and activated zinc sulfide both with foaming, commonly used in flotation separation operations of lead and zinc ore; it’s a weak collector for pyrite and other sulfide ores in alkaline circuit but in neutral or acidic medium.

flotation copper nickel - vokastages.be

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 process comprising conditioning a pulp of the ore in the presence of an alkaline agent to produce a conditioned alkaline pulp; then, in at least one further

Flotation experiment research on a polymetallic sulfide ore of

The flotation of the polymetallic sulfide ore of copper, lead, and zinc is generally suitable at alkaline pH conditions. Lime and soda are common agents used in adjusting the pH of the slurry. These agents were used and the effects of

Sodium Hydrogen Sulphide Copper Flotation

Sodium Hydrogen Sulphide Copper Flotation. We are manufacturing the sodium hydro sulphide using sophisticated machinery and quality chemicals for the processing the samehe offered sodium hydro sulphide is a yellow chemical compound with the formula nahs it has a low melting point of 350c and obtained by half-neutralization of hydrogen sulfide h2s with sodium hydroxideodium.

Flotation Behavior of Complex Sulfide Ores in the Presence ...

Jan 01, 2017  Base metals such as copper, lead, and zinc are mainly extracted from sulfide ores. Mostly these base metals tend to exist together in an ore. Flotation process is widely used to separate these minerals in sulfide ores [1]. A wide range of chemical reagents are used in the flotation process to separate the different minerals.

Flotation of copper sulphides assisted by high intensity ...

Flotation High intensity conditioning Concentrate recycling Copper sulphide fines abstract This paper describes the effect of the partial concentrate (rougher floated product) recirculation to rougher flotation feed, here named concentrate recirculation flotation – CRF, at laboratory scale. The main

Interpreting the role of reagents in the flotation of ...

alkaline range via the reaction of Cu2+ with surface sulphur sites to the reduced form Cu+ together with an over layer of colloidal Cu(OH)2. In the classical understanding of the activation process, the copper ions are added to the system initially to allow the adsorption of the copper ions on the surface of the sulphide minerals.

flotation copper nickel - vokastages.be

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 process comprising conditioning a pulp of the ore in the presence of an alkaline agent to produce a conditioned alkaline pulp; then, in at least one further

Flotation experiment research on a polymetallic sulfide ore of

The flotation of the polymetallic sulfide ore of copper, lead, and zinc is generally suitable at alkaline pH conditions. Lime and soda are common agents used in adjusting the pH of the slurry. These agents were used and the effects of

Sodium Hydrogen Sulphide Copper Flotation

Sodium Hydrogen Sulphide Copper Flotation. We are manufacturing the sodium hydro sulphide using sophisticated machinery and quality chemicals for the processing the samehe offered sodium hydro sulphide is a yellow chemical compound with the formula nahs it has a low melting point of 350c and obtained by half-neutralization of hydrogen sulfide h2s with sodium hydroxideodium.

Flotation Behavior of Complex Sulfide Ores in the Presence ...

Jan 01, 2017  Base metals such as copper, lead, and zinc are mainly extracted from sulfide ores. Mostly these base metals tend to exist together in an ore. Flotation process is widely used to separate these minerals in sulfide ores [1]. A wide range of chemical reagents are used in the flotation process to separate the different minerals.

Flotation of copper sulphides assisted by high intensity ...

Flotation High intensity conditioning Concentrate recycling Copper sulphide fines abstract This paper describes the effect of the partial concentrate (rougher floated product) recirculation to rougher flotation feed, here named concentrate recirculation flotation – CRF, at laboratory scale. The main

Interpreting the role of reagents in the flotation of ...

alkaline range via the reaction of Cu2+ with surface sulphur sites to the reduced form Cu+ together with an over layer of colloidal Cu(OH)2. In the classical understanding of the activation process, the copper ions are added to the system initially to allow the adsorption of the copper ions on the surface of the sulphide minerals.

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 ...

Role of sodium sulfide in the flotation of oxidized copper ...

This paper reviews uses of sodium sulfide in the flotation of oxide minerals of copper, lead, and zinc. The activation and depression effects of sodium sulfide are of particular importance because of their applications with oxidized lead and copper ores. In spite of its industrial importance, the nature of the heterogeneous reactions between sulfide ions in solution and the surface of oxidized ...

study problems of pyrite folotation of copper sulphide ore

Flotation of Nickel-Copper Sulphide Ore: Optimisation of Process ... Aug 12, 2014 ... optimum conditions for the flotation of nickel, copper and cobalt from a ... The nickel-copper sulphide ore used in this study was supplied by Trojan Nickel ..... copper ore by flotation, Physicochemical Problems of Mineral Processing, 42, pp. ...

Copper sulfide - Wikipedia

Copper sulfides describe a family of chemical compounds and minerals with the formula Cu x S y.Both minerals and synthetic materials comprise these compounds. Some copper sulfides are economically important ores.. Prominent copper sulfide minerals include Cu 2 S and CuS ().In the mining industry, the minerals bornite or chalcopyrite, which consist of mixed copper-iron sulfides, are often ...

FLOTATION OF COPPER AND NICKEL SULFIDES FROM TALCOSE ...

Oct 10, 1972  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 ...

The Effect of Seaweed Glue in the Separation of Copper ...

Flotation separation of chalcopyrite from molybdenite was studied using seaweed glue (SEG) as a depressant. Flotation process and mechanism were examined by response surface methodology, flotation tests, adsorption tests, zeta potential measurements and fourier transform infrared (FT-IR) spectra. Response surface methodology with a Box–Behnken design suggested the optimal reagent

DE-ZINCING OF LEAD-COPPER SULPHIDE MINERALS

DE-ZINCING OF LEAD-COPPER SULPHIDE MINERALS FLOTATION NGURAH ARDHA R D Centre for Mineral and Coal Technology Jalan Jenderal Sudirman 623 Bandung 40211, Ph. 022 6030483, fax. 022 6003373 e-mail: [email protected] ABSTRACT Typical lead-copper-zinc sulphide minerals were found hard to be separated selectively by froth flotation in

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 ...