Flotation of copper oxide minerals: A review
The continuous development of the global economy has resulted in a high demand for copper production and high copper consumption [1], [2], and exploitation and effective use of copper oxide mineral resources have attracted attention [3].Copper oxide deposits evolve from shallow copper sulfide deposits after long-term oxidation, and they are widely and abundantly …
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Upgrading of talc-bearing copper-nickel sulfide ore by froth flotation
In addition, the entrance of the unrecovered sulfide minerals into tailings would produce sulfuric acid, causing damage to nearby soil and water quality [7]. In order to improve the flotation indexes of copper-nickel sulfide ore and reduce the content of sulfide minerals in tailings, it is urgently demand to depress Mg-containing silicate minerals.
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Prediction of multi-stage froth flotation efficiency of …
Froth flotation is a process that selectively separates materials by utilizing the differences in their hydrophilic and hydrophobic surface properties (Wills, 2006).Since its introduction to the mining and mineral processing industry at the beginning of the 20th century, it has become the most essential process for recovering copper, lead, and zinc minerals from …
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Flotation of Gold and Gold-Bearing Ores
The application of flotation on a reasonable scale within the gold-mining industry commenced in the early 1930s following the introduction of water-soluble flotation collectors (specifically xanthates and dithiophosphate collectors) that allowed differential flotation of sulfide minerals (Weinig and Carpenter, 1937, Rabone, 1939, Richards and Locke, 1940, Taggart, …
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Geochemical and mineralogical aspects of sulfide mine tailings
The sulfide-bearing froth is collected by decantation and residual slurry may undergo additional concentration. The selectivity of froth flotation for specific sulfide minerals is dependent upon surfactant, slurry pH, and surface interactions with dissolved ions. Fuerstenau et al. (2007) present a comprehensive review of sulfide mineral ...
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Novel collectors for the selective froth flotation of mineral …
This invention relates to a froth flotation process for selectively recovering metal-containing sulfide or sulfidized metal-containing oxide minerals from ores using a froth flotation process. The collector employed in the process is an organic monosulfide of the formula:R.sub.1 --S--R.sub.2wherein R.sub.1 is a methyl, ethyl, epoxy (i.e., ##STR1## group or R.sub.3 --S- …
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Fundamental electrochemical studies of sulfide mineral flotation
Molybdenum is an important alloy element for metallurgical industry because of its high temperature stability. As the major mineral reserve for molybdenum, molybdenite (MoS 2) is commonly found in porphyry copper deposits.Molybdenite is naturally floatable and can be separated from copper sulfide mineral using froth flotation.
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CHAPTER 7 FLOTATION OF SULPHIDE MINERALS
Chalcocite (Cu2S) and chalcopyrite (CuFeS2) are the two most commonly floated copper sulphide minerals. Bornite (Cu5FeS4) and covellite (CuS) and energite (Cu3AsS4) are normally present in lesser quantities. The complete flotation of chalcocite is achieved between ph = 1 to …
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Froth Flotation Process
In ore/mineral beneficiation, froth flotation is a method by which commercially important minerals are separated from impurities and other minerals by collecting them on the surface of a froth layer. ... Aniline is used as a froth stabiliser for the processing of sulfide ores. Q3 . Why is pine oil used in froth floatation?
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A Review of the Mineral Contact Angle Measurements and …
Froth flotation is one of the most used separation methods in the mineral processing sector attributable to the necessity and usage of CA in surface wetting behavior, particularly in …
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Fundamentals of froth flotation | ChemTexts
Froth flotation is a physicochemical separation process in which a mixture of fine mineral particles is mixed with water in a large tank (cell), and a swarm of small air bubbles (several …
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Flotation of an Oxidized Copper Sulfide Ore
The aim of this study was the recovery of copper from the oxide copper ore by froth flotation and agitating sulphuric acid (H2SO4) leaching. ... The flotation of four copper sulfide minerals ...
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The role of sodium sulfide in the flotation of pyrite …
Sodium sulfide was also found to induce the collectorless flotation of sulfide minerals. Yoon, 1981, Luttrell and Yoon, 1984 demonstrated that chalcopyrite could be floated in the presence of sodium sulfide without the addition of collector and proposed that sodium sulfide acted as a cleaning agent to remove the surface oxidation products ...
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Sulfide mineral flotation | Request PDF
Regarding sulfide ore mines, tailings are typically produced in froth flotation process, where valuable sulfide minerals are selectively separated from non-valuable gangue (Fuerstenau et al., 2007 ...
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New advances in the understanding and development of flotation
The minerophilic group which anchors on mineral surfaces, is also described as the polar portion. Commonly, according to the beneficiated minerals, collectors are divided into oxide and sulfide mineral collectors. The development of collectors has promoted the progress of froth flotation (Fuerstenau et al., 2007). Nowadays, froth flotation has ...
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1 Froth Flotation – Fundamental Principles
Froth flotation is a highly versatile method for physically separating particles based on differences in the ability of air bubbles to selectively adhere to specific mineral surfaces in a …
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Froth Flotation Process
The Froth Flotation Process is about taking advantage of the natural hydrophobicity of liberated (well ground) minerals/metals and making/playing on making. ... Finally, this technique is highly appropriate for …
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The effects of saline water on the recovery of lead and zinc sulfide …
In this study, we investigated the effects of water salinity on the flotation performance of pure lead and zinc sulfide mineral samples as well as a Pb/Zn complex sulfide ore by means of micro-flotation and batch flotation experiments. Our results showed higher PbS and ZnS recoveries in more concentrated NaCl salt solutions.
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Handbook of Flotation Reagents: Chemistry, Theory and …
Abstract. The upgrading of phosphate ores using froth flotation method has been practiced for at least 65 years.Extensive research work has been carried out in the last 25 years, on various phosphate-containing ores.Despite of extensive research and industrial experience, there are some challenges remaining in particular in beneficiation of siliceous, calcite, and heavy …
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Copper Sulfide Flotation
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. ... Mineral and middlings in the teeter or quiescent zone of the cell are ...
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Improved flotation separation of sulfide minerals by …
Froth flotation, as one of the greatest technologies in the 21st century, enables humans to utilize the mineral resources on a large scale [1], [2]. ... PBAHX shows potential as a green and effective alternative to sulfide mineral flotation. View all citing articles on Scopus. 1. The two authors contributed equally to the paper. View full text
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A review on electrochemical behavior of pyrite in the froth flotation
Froth flotation is widely used in mineral industry to selectively separate minerals from each other [31]. Annually, more than 10 9 ... Apart from xanthates, other collectors such as DTPI 10 are also used in the sulfide minerals flotation [62], [198], [199], [200].
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Characterization of a Nickel Sulfide Concentrate and Its
In anticipation of future demands, a comprehensive understanding of the chemical and mineralogical characteristics of nickel-bearing minerals is a prerequisite to devising effective nickel beneficiation methods. Of particular importance are markers in the mineralogy of the flotation concentrate that inform beneficiation strategies to improve concentrate grades, …
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Froth Flotation of Gold – ZJH minerals
Froth flotation of gold is a widely used beneficiation method for treating rock gold ore in gold concentrating plant, which is often used to treat gold ore containing sulfide minerals with high floatability. The froth flotation process …
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Principles and practice of sulphide mineral flotation
Mechanisms of the action of various flotation reagents, including collectors, activators and depressants, commonly used in sulphide mineral flotation are discussed in terms of the …
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Minerals Engineering
The action of collectors in sulfide-water interface differs in a fundamental way from that in the other mineral–water interfaces. In sulfide systems, the principal variable is the redox potential imposed on the mineral–water interface (Chimonyo et al., 2017).By adjusting the pulp potential, sulfides can acquire hydrophobicity through adsorption of collectors (Moimane and …
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Insight into the effect of galvanic interactions between …
sulfide minerals. In froth flotation, pyrite has a similar floatability as these sulfide minerals, which leads to difficulty in the selective separation of sulfide minerals from pyrite (Hu et al., 2000; Mu et al., 2016a; Ejtemaei and Nguyen, 2017). To depress pyrite in froth flotation, an abundance of lime is used as the
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(PDF) Sulfide Mineral Flotation | Morgan Zhao
Froth flotation was developed at the Broken Hill mine, Australia, a century ago with the flo-tation of the common sulfide mineral, sphalerite. With this development, billions of tons of worthless rock containing a variety of valuable metals became ... Created from uaz on 19:01:44. SULFIDE MINERAL FLOTATION 433 100 Flotation Recovery ...
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Flotation separation of carbonate from sulfide minerals, I: flotation …
Froth flotation. Flotation reagents. ... This oxidation was catalyzed by sulfide minerals in the flotation pulp (Raghavan and Unger, 1983). We, therefore, mixed thioglycollic acid with citric acid on a 1:1 molar ratio to test if there was any synergistic effect in the depression of sulfide. The depressant thus prepared was called "mixed ...
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A new perspective on copper oxide flotation: Synthesis and …
Currently, sulfide flotation and direct flotation are the two main methods in the flotation of malachite [5]. As for sulfide flotation, over-sulphidising will inhibit copper oxide mineral that exhibit properties of sulfide ore after sulfidation, consequently, it is difficult to control the sulphidization behavior in precise [6], [7], [8 ...
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