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(PDF) Flotation of mixed copper oxide and sulphide minerals with ...
Flotation of mixed copper oxide and sulphide minerals with xanthate and hydroxamate collectors ... molybdenite and pyrite using biosolids and their main components as collectors for greening the froth flotation of copper sulphide ores. by Pablo Higueras and Alex Godoy-Faúndez.
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Introduction to Flotation of Nonferrous Metal - Xinhai
Copper sulfate is a common activation in the flotation process of sphalerite. And zinc sulfate, ferrous sulfate, sulfite, sodium sulfide, thiosulfate or sulfur dioxide gas all can inhibit the flotation of Marmatite. There are two kinds of ways for the flotation of copper and nickel which are preferred flotation and mixed flotation. The ...
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Processes for flotation of mineral substances
10. A method of concentrating a metalliferous sulphide or oxidised sulphide ore containing desired metal oxide or sulphide as well as sphalerite and containing also substantial quantities of at least one impurity selected from the group consisting of pyrites and pyrrhotite, which comprises subjecting an aqueous pulp of the ore to a froth flotation process in the presence of a collector, a ...
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Effect of Copper and Iron Ions on the Sulphidizing Flotation of Copper ...
Abstract. The treatment of smelting slag has attracted much attention nowadays. This study investigates the influence of Na 2 S, CuSO 4, and FeCl 3 on sulphidizing flotation of copper oxide. The results show that a proper Cu 2+ concentration can increase the sulphidizing effect of copper oxide, while Fe 3+ inhibits the sulphidizing effect. Further analysis shows that Cu 2+ ions can reduce the ...
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Mechanism and application on sulphidizing flotation of copper oxide ...
Copper oxide minerals such as malachite do not respond well to the traditional copper sulfide collectors, and require alternative flotation schemes. In many copper ore mines, significant copper oxide. Expand PDF Save Alert Identification of sulfidization products formed on azurite surfaces and its correlations with xanthate adsorption and flotation
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v116n6a11 Review, evolution, and optimization of the treatment of ...
sulphidization for flotation of oxidized sulphides has also been demonstrated (Newell et al., 2006). When introduced in the slurry, the sulphidizer dissociates into the species H 2S, H S- or S 2-, depending on the pH. These ions react with the copper oxide minerals to form a sulphide layer on the surface of the oxide minerals (Zhou and Chander ...
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Effect of Grinding Chemistry on The Sulphidisation and Flotation ...
The recovery of copper by sulphidisation and flotation from a mixed ore has been studied in detail in this thesis. Particular focus was given to the effect of pulp chemistry on the sulphidisation mechanism and subsequent flotation response of oxidised sulphide minerals, both of which are not prevalent in the literature.
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Leaching of Low-grade Copper Ores: a Case Study for „Kraku Bugaresku-
Oxide copper ore, mixed oxide-sulphide ores and low-grade copper sulphide ore, which, for economic reasons, cannot be enriched by flotation, may be processed by leaching methods. Agents for leaching copper can be acid, base, or salt solutions.
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Parametric Optimization in Rougher Flotation Performance of a ... - MDPI
Tijsseling et al. [ 26] examined the flotation behavior of mixed oxide with sulfide copper-cobalt minerals using different collectors. Their findings demonstrated that a dithiophosphate collector could recover over 90% of the copper sulfides, and 70% of the copper oxide minerals.
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DOISerbia - Acid leaching of oxide-sulphide copper ore prior the ...
Processing of such mixed ores by the existing concentration technologies leads to a substantial copper losses (60%). Reduction of "oxide copper", by acid leaching prior the flotation concentration, can increase the overall copper efficiency up to more than 70% in the single-stage leaching, achieving an efficiency in the flotation concentration ...
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Handbook of Flotation Reagents: Chemistry, Theory and Practice
20 Flotation of Mixed Lead Zinc Sulphide Oxide and Oxide Lead and Zinc Ores 20.1 Some Geological and Mineralogical Features of Mixed Sulphide Oxide and Oxide Lead Zinc Ores 20.1.1 Mixed sulphide oxide lead zinc ores 20.1.2 Oxide lead ores 20.1.3 Zinc oxide ores 20.2 Flotation Properties of Individual Oxide Lead Zinc Minerals of Economic ...
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12.3 Primary Copper Smelting - US EPA
Iron sulfide is oxidized to form iron oxide (FeO) and SO2. Blowing and slag skimming continue until an adequate amount of relatively pure Cu2S, called "white metal", accumulates in the bottom of the converter. A final air blast ("final blow") oxidizes the copper sulfide to SO2, and blister copper forms, containing 98 to 99 percent coppers. The ...
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Hydrometallurgical Production of Copper From Flotation Concentrates
associated costs. Batch testing at 900 C with the chalcopyrite-ferric sulfate system resulted in copper extraction exceeding 99 pct. At an optimal energy consumption of 1,520 kW· hjst, 95 pct of the copper was extracted. The pregnant liquor was clarified and tested for typical solvent -extraction recovery of the copper.
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Development and optimization of mixed sulphide/oxide copper ore ...
The traditional method applied for the flotation of copper oxide or mixed ores is sulphidization, 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 hydrosulphide (NaHS), or ammonium sulphide (NH 4) 2 S as a sulphidizing ...
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Enhanced sulfidation xanthate flotation of malachite using ammonium ...
Sulfidation xanthate flotation is the most widely used method for dealing with copper oxide ore 9, 12, 13. Sodium sulfide can promote the flotability of oxide copper ore14, resulting in the considerable increase of research atten-tion12, 13. Oxide mineral surface has an ionic bond, such that the polarization of water molecules forms a firm
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Multianalysis Characterization of Mineralogical Properties of Copper ...
According to the results of the phase analysis of copper, lead, and zinc, the ore comprises both copper oxide minerals and copper sulfide minerals; it is a typical oxygen-sulfur mixed copper ore of low grade, high oxidation, and a high combination rate, for which recovery by flotation is extremely difficult.
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Journal of Mining and Environment (JME)
In many copper ore mines, significant copper oxide minerals, especially malachite, are associated with sulfide minerals. Considering that xanthates are most widely used in the flotation of sulfide minerals as well as copper sulfide minerals and, hydroxamate has shown a good selectivity for copper oxide minerals.
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Laboratory Evaluation of the Flotation Response of a Copper Cobalt ...
The head assay conducted on the initial ore sample showed that it contained about 2.90% of Cu, 0.12% of Co. Upon the flotation test work, the results obtained indicated that the concentrate obtained with use of the mixture gazoil-rinkalore RX yielded 8.24% Cu and 0.22% Co concentrate grades with recoveries of 76.0% Cu and 78.0% Co respectively.
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Effect of Desliming on Flotation Response of Kansanshi Mixed Copper Ore
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.
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Copper Ore Types: Sulfides vs. Oxides - INN
Jan 24, 2022Most of the rock is unwanted material, typically referred to as gangue. There are two main types of copper ore that are of interest: copper oxide ores and copper sulfide ores. Both ore types can ...
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Flotation of Copper Sulfide Ores - Stephan Chem Co,Us
I claim as my invention 1. A flotation promoter for the selective water flotation of thin finely ground copper-bearing sulfide ores and the suppression of iron pyrites therein, finely ground state consisting essentially of an aliphatic hydrocarbon sodium sulfate having a C 8 - C 10 carbon chain and having propylene oxide chemically combined therewith in an amount in the range of 5 to 30 mols.
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Copper Processing | Equipment, Process Flow, Cases - JXSC Machine
That is, sulfide ore, containing less than 10% copper oxide; oxidized ore, containing more than 30% copper oxide; mixed ore, containing 10% to 30% of copper oxide. Copper sulfide ore flotation Copper sulfide ore classification (1) Single copper ore. Its composition is relatively simple, and the only valuable component is copper.
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Flotation of mixed copper oxide and sulphide minerals with xanthate and ...
From previous flotation investigations of mixed copper oxide and sulphide minerals using xanthate and, hydroxamate collectors it was hard to distinguish the impact of the alkyl hydroxamate collector...
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of flotation if copper concetrates
Copper sulphide concentrate is recovered from an ore containing sulphides of copper and of iron by floating the ore to obtain a rougher concentrate containing a major proportion of the recoverable copper sulphide, separating the concentrate into sands and slimes, treating the sands in an alkaline state with a soluble cyanide and subjecting the ...
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Parametric Optimization in Rougher Flotation Performance of a ...
the rougher flotation recovery of mixed copper ore was 8% less than the sulfide ore. Additionally, the increase of collector and NaHS dosages along with the size reduction of coarse particles (>74 µm) of rougher tailing had a positive influence on the recovery. Following this, Ghodrati et al. [28] applied
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Electrochemistry of Sulfides: Process and Environmental Aspects
One of the main sources of non-ferrous and precious metals is sulfide ores. This paper presents a review of the existing literature on the electrochemical properties of some of the most common industrial sulfides, such as pentlandite, chalcopyrite, sphalerite, galena, pyrrhotite, pyrite, etc. The study results of the surface redox transformations of minerals, galvanic effect, cathodic oxygen ...
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Flotation of mixed copper oxide and sulphide minerals with xanthate and ...
For mixed oxide and sulphide ores, CPS is unsuitable for simultaneous flotation of copper oxide and sulphide minerals, as the sulphides are usually heavily depressed by the sulphide ions from NaHS additions necessary to sulphidise the oxide copper.
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Review, Evolution and Optimization of the Kansanshi Mixed Copper Ore ...
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
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US3827557A - Method of copper sulfide ore flotation - Google
a novel flotation promoter used in the concentration of copper bearing ores for the efficient selective flotation of copper values, including chalcopyrite, with suppression of iron pyrites; the...
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Flotation of oxidized copper ores - Inspiration Consolidated Copper Company
We claim: 1. The method of recovering copper by froth flotation from an aqueous pulp of an ore containing both sulfide and oxidized minerals of copper which comprises subjecting an aqueous pulp of the ore to a first froth flotation operation in the presence of a collector for sulfide copper minerals, thereby producing a concentrate containing a large proportion of the sulfide copper minerals ...
WhatsApp:+8617329420102The microwave irradiation effect on the floatability of mixed sulphide ...
the grade and recovery of flotation of sulphide copper, oxide copper and iron were investigated in the feed of Sungun copper processing plant. 2. Materials and Methods 2.1. Introduction of Sungun copper processing circuit and the studied sample Sungun copper mine and complex with geographical coordinates 46˚ 43ˈ E and 38˚ 42ˈ N, located in ...
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Copper Ore Types: Sulfides vs. Oxides - INN
As mentioned, copper oxide ores are not as attractive an exploration target as copper sulfide ores due to their lower grade. However, in some cases low-grade copper oxide ores can still be...
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A study of the flotation characteristics of a complex copper ore
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.
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Copper extraction - Wikipedia
Sulfide ores. Secondary sulfides—those formed by supergene secondary enrichment—are resistant to sulfuric leaching.These ores are a mixture of copper carbonate, sulfate, phosphate, and oxide minerals and secondary sulfide minerals, dominantly chalcocite but other minerals such as digenite can be important in some deposits.. Supergene ores rich in sulfides may be concentrated using froth ...
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Zahra Bahri - Google Scholar
Mechanochemical sulfidization of a mixed oxide-sulphide copper ore by co-grinding with sulfur and its effect on the flotation efficiency. M Masdarian, A Azizi, Z Bahri ... Improving copper recovery from oxide sources in flotation process using sodium dodecyl sulfate modified ZnO nanoparticles as new collector. M Eskandari, Z Fakhroueian, M ...
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Froth Flotation Analysis of Oxidized Lead-Zinc Ore - Mining-pedia
During flotation treatment of oxidized sulfide mixed ore, lead sulfide is usually first surfaced, and then sulfide agent and xanthate are added to flotation lead oxide, and mud removal or water glass can be added to reduce the influence of fine mud and soluble salts.
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copper processing plant, copper flotation plant, copper extraction plant
Flotation is the common copper processing technology, which can be used for sulfide ore and oxide ore. The copper flotation plant usually includes following steps: crushing and screening, stage grinding and flotation, thickening and dewatering, and copper concentrates recovery.
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Enhanced sulfidation xanthate flotation of malachite using ... - Nature
It is divided into sulfidation flotation and direct flotation. Direct flotation of copper oxide ores has been extensively studied. They selected fatty acids, fatty amines, petroleum sulfonates, and...
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B03D 101 - Specified effects produced by the flotation agents - Patents ...
CN102366731B Method for activating and adjusting mineralized bubbles in vulcanizing flotation process of copper oxide ores 12/11/2013 CN103433149A Polymetallic sulphide ore flotation process ...
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copper processing plant, copper flotation plant, copper extraction plant
Introduction. Flotation is the common copper processing technology, which can be used for sulfide ore and oxide ore. The copper flotation plant usually includes following steps: crushing and screening, stage grinding and flotation, thickening and dewatering, and copper concentrates recovery.
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