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Alkaline flotation of copper sulphide

Copper Sulfide Flotation - Mineral Processing & Metallurgy

Copper Sulfide Flotation Reagents. Lime is added to the Ball Mill by a Cone Type Dry Reagent Feeder. Other reagents, such as cyanide, xanthate, and a frother are fed and controlled by No. 12A Wet Reagent Feeders to the classifier and to the conditioner ahead of flotation. Sampling. Automatic Samplers are provided for the sampling requirements.

(PDF) A Review of the Flotation of Copper Minerals

Copper is most commonly present in the earth’s crust as copper-iron-sulphide and copper sulphide minerals, for example, chalcopyrite (CuFeS2), bornite (Cu5FeS4) and chalcocite (Cu2S).

Alkaline Sulfide Gold Leaching Kinetics | Request PDF

Alkaline sulfur-containing lixiviants, including thiosulfate, polysulfides, and alkaline sulfide solutions, stand out as a promising class of alternatives to cyanide because of their low toxicity ...

Corby Anderson

Sulphide Flotation - an overview | ScienceDirect Topics

In most flotation plants, sulfur and silver on gold grains (in all likelihood in the form of silver sulfide) promoted gold flotation. Copper must be assisting gold flotation as deciphered from the superior floatability of auricupride [Cu 3 Au] and tetra-auricupride [AuCu] relative to native gold. At the Kemess flotation plant depending on the ...

Copper Flotation - Mineral Processing & Metallurgy

Although basic porphyry copper flotation and metallurgy has remained virtually the same for many years, the processing equipment as well as design of the mills has continually been improved to increase production while reducing operating and maintenance costs. Also, considerable attention is paid to automatic sensing devices and automatic controls in order to assure maximum metallurgy and ...

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.

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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

A fundamental study of the alkaline sulfide leaching of gold

A fundamental study of the alkaline sulfide leaching of gold M.I. Jeffrey1* and C.G Anderson2 1 Department of Chemical Engineering, Monash University, Vic., 3800, Australia 2 The Center for Advanced Mineral and Metallurgical Processing, Montana Tech of the University of Montana, Butte, Montana, 59701, USA

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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

A fundamental study of the alkaline sulfide leaching of gold

A fundamental study of the alkaline sulfide leaching of gold M.I. Jeffrey1* and C.G Anderson2 1 Department of Chemical Engineering, Monash University, Vic., 3800, Australia 2 The Center for Advanced Mineral and Metallurgical Processing, Montana Tech of the University of Montana, Butte, Montana, 59701, USA

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.

Flotation Froth - an overview | ScienceDirect Topics

The froth flotation technique was originally developed in about 1910 to raise the copper concentrations of the strip-mined ores of Bingham Canyon, near Salt Lake City [9], and was further perfected for the differential separation of lead, zinc, and iron sulfides at Trail, B.C., at about the same time [10]. Flotation technologies are now widely ...

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.

Alkaline Flotation Of Copper Sulphide

Alkaline Flotation Of Copper Sulphide We are a large-scale manufacturer specializing in producing various mining machines including different types of sand and gravel equipment, milling equipment, mineral processing equipment and building materials equipment.

alkaline flotation of copper sulphide - lesvillas.be

A Copper Flotation Flowsheet Because the copper in this type of ore , in the flotation of copper sulphide minerals , in a neutral or slightly alkaline . [Live Chat] Depression of iron sulphide flotation in zinc , Iron sulphides are known to float well at neutral to slightly alkaline pH , for copper sulphide

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.

David Michaud

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

Effect of Seawater on Sulfide Ore Flotation: A Review ...

Flotation of copper-molybdenum sulphide ores in seawater entails critical challenges such as selective recovery of molybdenite, effective pyrite depression, and reducing the lime addition required ...

Handbook of Flotation Reagents | ScienceDirect

The sequential copper–lead–zinc flotation practice utilizes several major reagent combinations in sequential copper–lead flotation, which include: bisulfide method, starch/lime method and soda ash/SO 2 or lime/SO 2 method. The bulk copper–lead flotation with depression of zinc followed by copper–lead separation and re-flotation of ...

Depression of iron sulphide flotation in zinc roughers ...

In the alkaline pH conditions used in this study, PAM-H is neutral while PAM-C is negatively charged. ... have shown that thionocarbamate collectors possess a greater affinity for copper sulphide minerals and copper-activated sphalerite over pyrite than the more traditional xanthate collectors. ... Depression of iron sulphide flotation in zinc ...

Selective Flotation of Copper Oxide Minerals with A Novel ...

The bench-scale flotation outcomes showed that TMATT achieved the high-efficient flotation separation and enrichment of copper oxide minerals from the mixed sulfide-oxide copper ore.

Leaching of Copper Sulphides - SAIMM

copper sulphide leaching options as alternatives to the more conventional pyrometallurgical processing route of copper sulphides. Three copper sulphide leaching and refining processes are discussed: total pressure oxidation, ferric sulphate leaching and copper chloride leaching. The effect of mineralogy

Leaching of Copper Sulphides - SAIMM

copper sulphide leaching options as alternatives to the more conventional pyrometallurgical processing route of copper sulphides. Three copper sulphide leaching and refining processes are discussed: total pressure oxidation, ferric sulphate leaching and copper chloride leaching. The effect of mineralogy

The impact of seawater with calcium and magnesium removal ...

Rougher flotation of Cu-Mo sulphide ores was carried out in three separate environments: (i) test 1: flotation in seawater at high alkaline condition (pH 11.5); (ii) test 2: flotation in pretreated seawater at pH 11.5; and (iii) test 3: flotation in seawater at natural pH. The main conclusions are mentioned below: •

Effect of Seawater on Sulfide Ore Flotation: A Review ...

The objective of this review is to present a summary of the current knowledge on the subject of seawater flotation processes, highlighting the copper sulphide ores flotation. This review includes a description of the underlying flotation mechanisms affected by the presence of saline water and seawater, as well as a more practical description of ...

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 of Sulfide Minerals with the use of a Cationic ...

Request PDF | Flotation of Sulfide Minerals with the use of a Cationic Collector | In the flotation of Zn-Pb ores, sphalerite is floated following activation with copper sulfate. In this type of ...

(PDF) Optimization of Cu–Zn Massive Sulphide Flotation by ...

Optimization of Cu–Zn Massive Sulphide Flotation by Selective Reagents ... in the sorting process of copper sulfide ore, this method of dosing does not effectively separate sulfide minerals and ...

PROCESS OPTIMISATION OF MIXED COPPER ORES

ores are either treated through standard sulphide flotation, sulphidisation or flotation followed by acid leaching. The performance of each of these process routes depends on the degree of oxidation as predicted by the proportion of acid soluble copper present in the ore. Process parameters must be aligned to optimize the recovery and grade ...

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.

Effect of alkalinity of a pulp on selective flotation of ...

We study the effect of one of the main parameters of flotation ore-dressing, specifically, alkalinity of the pulp, on the selective flotation of sulfide and oxide minerals of copper from the Udokan deposition ores (Chita oblast). It is found that the optimum values are pH = 9 for sulfide minerals of copper and pH = 10 for the oxide ones. A supply of lime at the stage of pounding and sodium ...

Copper ore flotation process - YouTube

Jun 16, 2014 · The flotation machine is used for the separation of the nonferrous black metal as well as the separation of the non-metallic materials such as the coal fluorite and the talc.

Eric Zhang

Sulfide - Wikipedia

Sulfide (British English also sulphide) is an inorganic anion of sulfur with the chemical formula S 2− or a compound containing one or more S 2− ions. Solutions of sulfide salts are corrosive. Sulfide also refers to chemical compounds large families of inorganic and organic compounds, e.g. lead sulfide and dimethyl sulfide. Hydrogen sulfide (H 2 S) and bisulfide (SH −) are the conjugate ...

flotation copper nickel - vokastages.be

FLOTATION OF COPPERNICKEL SULFIDE ORES . 197266ensp;0183;ensp;What I claim as my invention is 1. 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

FROTH FLOTATION : RECENT TRENDS Flotation of Sulphide

History of Sulphide ore flotation dates back to beginning of 20th century. Sulphide ores are major sources of base metals like Copper, Lead, Zinc, Nickel, Cobalt etc. Beneficiation of these base metal sulphide minerals is predominating through froth flotation technique. This technology has acclaimed importance as a versatile process for

The Adsorption of Cu Species onto Pyrite Surface and Its ...

The adsorption of Cu species onto pyrite surface and its effect on flotation were investigated by using microflotation tests, first-principle calculations, and XPS surface analysis. The results indicated that the flotation of pyrite appears to be activated with CuSO4 only at alkaline pH, while being depressed at acidic and neutral pH. The adsorption of copper ions on pyrite surface ...