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copper sulfide flotation

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EP3129515A1

A method of depressing copper sulfides and iron sulfides in a molybdenite floatation recovery process uses alkaline or alkaline earth potysulftdes at high concentrate pH. The method of enriching molybdenite content from a slurry having molybdenite and at least one of iron sulfides and copper sulfides can include the steps of adding an effective amount of a depressing reagent selected from one ...

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Sulphide Flotation

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 ...

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METHOD OF COPPER SULFIDE ORE FLOTATION

I claim as my invention 1. A method of mineral flotation comprising the steps of grinding a copper-bearing sulphide ore material to release the metal values from a gangue containing iron pyrites, adding water and calcium oxide to adjust the pH to about 7 to 11.5, passing air bubbles through the solution and adding an amount of a flotation promoter comprising R--(OCH 2 CH 2)N-- OSO 3 Na and a ...

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Mining Industry | Copper Sulfide Ore and Flotation Process ...

 · Copper Sulfide Ore and Flotation Process. 2019-07-09 2019-07-09 by JXSC Mining. 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. …

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Estimated Water Requirements for the Conventional ...

Copper sulfide ores must be concentrated before they can be economically transported to a smelter. Froth flotation is part of a copper beneficiation process in which finely ground ore is placed in aerated tanks that contain a water-based solution from which a copper-sulfide-rich froth is recovered

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Froth flotation

Froth flotation cells to concentrate copper and nickel sulfide minerals, Falconbridge, Ontario. Froth flotation is a process for separating minerals from gangue by taking advantage of differences in …

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

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

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Copper Sulfide Flotation

 · Copper Sulfide Flotation Circuit. Beneficiation of Copper Sulfide by Flotation. Copper, due to the present world demand and price, is of foremost interest to the mining industry.Many new properties are either in the process of being brought into production or are being given consideration.

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copper flotation process

 · The flotation process is often used to treat the copper-lead-zinc sulfide ores whose various useful minerals have the significant difference in floatability. Because of its own complex characteristics, the copper-lead-zinc sulfide ore extraction is also difficult. Before determining the flotation process, it is necessary to carry out the ore ...

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Surface properties of copper-sulfide minerals with sodium ...

 · Flotation results indicated that copper ions dramatically reduced the recoveries of copper and molybdenum, and increased the inhibition effect of sodium sulfide; that is, the flotation …

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FLOTATION OF COPPER SULFIDE ORES

A flotation promoter for selective water flotation of thin finely ground copper-bearing sulfide ores and the suppression of iron pyrites therein consisting essentially of a reagent having the general formula R - (OCH 2 CHCH 3) 10-OSO 3 Na wherein R is a C 8 - C 10 fatty alcohol.

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Flotation of an Oxidized Copper Sulfide Ore

Flotation of an Oxidized Copper Sulfide Ore Ahmed A. Seifelnasr 1, Ghorashi Z. Zain 2, Abdel-Zaher M. Abouzeid *3 1 Faculty of Petroleum and Mining Engineering, Suez University, Suez, Egypt

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Minerals | Free Full-Text | Derivation of Flotation ...

The wettability and floatability of oxidized chalcocite, bornite, and chalcopyrite with the conditions of sodium hydrosulfide (NaHS) dosages and pHs were studied by contact angle measurements, and single and mixture mineral flotation tests. To evaluate the results of the flotation, the flotation kinetic model for copper sulfide minerals treated by NaHS was derived.

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Feasibility Study of Differential Flotation of Cu–Pb–Zn ...

 · In this research, flotation of copper, lead and zinc minerals from a copper oxide–sulfide ore was studied. The identification tests showed that the sample is a mixture of quartz, chalcopyrite, galena, cerussite, hemimorphite and iron oxide minerals with 5.04% CuO, 1.61% PbO, 2.07% ZnO and 56.40% SiO 2.The experimental design methodology (RSM) was conducted to investigate the effect of ...

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US4460459A

A sequential flotation process for the recovery of high-grade concentrates of copper, lead and cobalt-nickel from sulfide ores is provided. A primary grind ore pulp is conditioned with SO 2 as H 2 SO 3 under intense aeration, and the conditioned pulp subjected to sequential flotation, with regrinding and conditioning of a copper rougher concentrate obtained in the first flotation step for copper.

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

 · As for zinc, Figure 10 shows that, at 50 g/ton of chitosan, the recovery of zinc in the froth increased by 40% compared to NaCN at its optimum dosage which is undesirable in the differential flotation of sulfide minerals where lead and copper sulfides are floated in the first flotation stages while sphalerite is depressed. Results also revealed ...

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Acid leaching of oxide–sulfide copper ore prior the ...

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

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Copper Sulfide Ore Flotation Technologies

 · Copper sulfide ore has good inherent floatability, so flotation process is a mature method used for copper sulfide ore separation. In recent years, with the continuous development of copper sulphide flotation technology, many scholars also proposed a series of new principles of mineral processing, such as "collect early, loss early" and "more crushing and less grinding".

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

 · 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 composite.

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Flotation of sulfide minerals

In like manner, while the instant invention is applicable to flotation concentration of all sulfide minerals where slime is a problem, such as sulfidic copper, nickel, zinc, silver, molybdenum ores, and the like, it will be discussed in connection with copper sulfide minerals.

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Flotation Reagents

 · Developed primarily for flotation of oxidized copper ores. Promoterfor malachite and azurite without sulphidization. Reagent 444: A yellow water soluble powder. 5% solution.2 to .5: An effective promoter for copper and zinc sulphide ores. Reagent 610: A dark colore powder. Slightly hydroscopic. 2-5% solution.10 to 1.0

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SULFIDE FILMING AND FLOTATION OF CHRYSOCOLLA …

copper sulfide and oxidized copper minerals. The sulfide minerals are readily concentrated by flotation. Although concentration of oxidized minerals by flotation methods by the Kenneoott Copper Company in Alaska was successful, many other large and small scale attempts have failed. Chapman1

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Interaction effects of flotation reagents for SAG mill ...

 · Flotation reagents have a complex behaviour in the beneficiation of base minerals in clayey ores. Interaction effects of reagents on the efficiency of copper flotation for a highly clayey low-grade sulphide ore were investigated using a central composite design.

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The Critical Role of Pulp Density on Flotation Separation ...

A nickel-copper sulfide system usually coexists with serpentine in deposits. Low nickel-copper recovery and high content of serpentine in concentration adversely affects subsequent metallurgical processes. In this study, test data showed different rheological results at various densities. When the solid ratio of sulfide to serpentine was 1:1, lower pulp density (20 wt %) contributed to better ...

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Effect of Copper Sulfate on Zinc Sphalerite Flotation

 · Copper sulfate, when used as an activator in flotation of sphalerite, forms an invisible but physically detectable film of cupric sulfide on the surface of the sphalerite particles, as evidenced by increased electric conductivity, by chemical metathesis, and by the ability to deactivate with solutions of alkali cyanides, which are known as ...

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(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 ...

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FLOTATION OF COPPER-NICKEL SULFIDE ORES

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 ...

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Identification of copper-sulfide species on the cuprite ...

Identification of copper-sulfide species on the cuprite surface and its role in sulfidization flotation Author: Han, Guang, Wen, Shuming, Wang, Han, Feng, Qicheng Source: Colloids and surfaces 2021 v.624 pp. 126854 ISSN: 0927-7757 Subject: X-ray photoelectron spectroscopy, adsorption, hydrophobicity, infrared spectroscopy, zeta potential Abstract:

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Copper Nickel Flotation

 · The Bureau of Mines investigated the flotation responses of two copper nickel ore samples from the Duluth Complex with the objective of recovering bulk sulfide concentrates. One of the ores studied was taken from a test pit; the other was taken from a test shaft. The samples were quite similar except that the pit sample analyzed 0.35 pct Cu and 0.11 pct Ni and the shaft sample analyzed …

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copper oxide flotation|miningpedia

 · After sulfidation, a copper sulfide film is formed on the surface of the copper oxide, giving it the surface properties of copper sulfide, and then flotation will be performed using collectors. Therefore. The sulfidation process is directly related to the quality and efficiency of copper oxide flotation.

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Molybdenite flotation from copper/molybdenum …

copper sulfide minerals and the selective flotation of molybdenite from copper/molybdenum concentrates. The results of this research program were quite successful, and the University of Utah is now seeking patent protection for this flotation technology (Miller, Ye, and Jang, 1990). The utilization of ozone in the flotation of sulfide minerals

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A review of the fundamental studies of the copper ...

A review of the considerable, but often contradictory, literature examining the specific surface reactions associated with copper adsorption onto the common metal sulfide minerals sphalerite, (Zn,Fe)S, and pyrite (FeS(2)), and the effect of the co-location of the two minerals is presented. Copper "a …

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Effect of pulp potential on the flotation of a sulfide ...

 · Sulfidization requires pulp potential control to keep this parameter in the range of 0 to +100 mV, yielding high copper recoveries at minimum collector (90 git) and fr other (60 git) dosages. Flotation with nitrogen reduces the sodium sulfide dosages required to …

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Effect of Desliming on Flotation Response of Kansanshi ...

The Kansanshi mixed copper sulfide-oxide ore contains significant proportions of fine material manifesting in a variety of processing challenges. This paper presents the work which was carried out to evaluate the efficacy of desliming in improving the flotation response of the ore. Two modes of desliming were investigated, namely; sieving and elutriation after which the deslimed material was ...

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Enhancing flotation separation of chalcopyrite and ...

 · As for the talc type Copper-Nickel Sulfide Ores, the talc entrained in flotation concentrate with foam will affect the grade of copper sulfide ore, so gum Arabic (GA) is …

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Copper extraction

Supergene sulfide ores rich in native copper minerals are refractory to treatment with sulfuric acid leaching on all practicable time scales, and the dense metal particles do not react with froth flotation media. Typically, if native copper is a minor part of a supergene profile it will not be recovered and will report to the tailings.