A Review of the Flotation of Copper Minerals
The recovery of these copper minerals by flotation or hydrometallurgy from ores, typically containing 0.5%TCu (open pit This collector can be used to treat copper mines, and it can better realize the separation of secondary copper sulfide minerals. The purpose of this study is to Flotation separation mechanism for secondary copper sulfide
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Mineralogy and Innovative Flash Flotation Separation of Cu-Pb-Zn
The closed-circuit test shows that copper concentrate assays Cu 16.33%, Pb 7.98%, Ag 242 g/t at Cu recovery of 86.67%; lead concentrate contains Pb 46.23%, The separation process employed was flotation, which was applied in three different mechanisms: (i) ion flotation using xanthates, (ii) precipitate flotation Copper removal from effluents by various separation
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Minerals Free Full-Text Flotation of Copper Ores with
Flotation of Copper Ores with High Cu/Zn Ratio: Effects of Pyrite on Cu/Zn Separation and an Efficient Method to Enhance Sphalerite Depression by Kosei Aikawa 1,*, Mayumi Ito 2, Nodoka Orii 1, Sanghee Jeon 2, Ilhwan In this paper, the surface properties of copper oxide minerals and their effects on the mineral flotation behavior are systematically summarized. The flotation methods of Flotation of copper oxide minerals: A review DOAJ
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Separation of Copper-Molybdenum Flotation Concentrate by
Separation of Copper-Molybdenum Flotation Concentrate by Superconducting High-Gradient Magnetic Separation Zekai Wang 1, Xindong Li 2,*, Zhaolian Wang 3, Wanfu The selective separation of copper–molybdenum sulfide minerals by flotation mostly relies on the use of various depressants.Flotation separation of copper–molybdenum sulfides using
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1 Froth Flotation Fundamental Principles
After carrying out a froth flotation separation, the products are as shown in Table 1. Using this data, calculate: (a) Ratio of concentration (b) % Metal Recovery (c) % Metal Loss (d) % Weight Recovery, or % Yield (e) Enrichment Ratio Table 1: Grade/recovery performance of a hypothetical copper ore flotation process.The flotation separation of enargite from copper sulfide minerals is difficult owing to the similar floatability and reagent adsorption characteristics of these minerals. In this study, the effect of oxidation treatment using NaClO flow with FeCl3 on the flotation separation of covellite and enargite was systematically investigated.Minerals Free Full-Text Flotation Separation of Covellite and
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Review of the Flotation of Copper Minerals
for copper has resulted in increased ore processing by flotation plants around the world. The depletion of high-grade ores, increased demand for metals and separation difficulties associated with low-grade or refractory ores, has resulted in new flotation challenges in terms of economic and sustainable beneficiation of these ores.& Aliakbar Abdollahzadeh (2016): Estimation of selectivity index and separation efficiency of copper flotation process using ANN model, Geosystem Engineering, DOI: 10.1080/12269328.2016.1220334Estimation of selectivity index and separation efficiency of copper
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Minerals Free Full-Text Efficient Recovery of the Combined Copper
The reserve of the copper-oxide-bearing limonite ore (COBL ore) in Yulong Copper Co., Ltd. is up to 20 million tons with 1.79% of copper content. The characters of the copper resources in the COBL ore are high-proportioned oxidation state (99.98%) and combined state (84.83%). The combined copper oxide is mainly copper Flotation separation of copper–molybdenum sulfides using chitosan as a selective depressant. Miner. Eng. (2015) Y. Liu et al. Flotation separation of carbonate from sulfide minerals, II: mechanisms of flotation depression of sulfide minerals by thioglycollic acid and citric acid. Miner.Flotation separation of molybdenite from chalcopyrite using an
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The Recovery of Copper from Smelting Slag by Flotation Process
Flotation Results. Figure 2 shows the effect of grinding fineness on recovery rate of copper. It is observed that a rise of the proportion of the grinding fineness of −0.074 mm from 60 to 80% obviously increased the copper recovery,then decreased when it exceeded 80%. This is because the initial appearance was dissociation fragmentationDOI: 10.1016/S0026-265X(00)00050-3 Corpus ID: 95742072; Flotation separation of cobalt and copper from fresh waters and their determination by electrothermal atomic absorption spectrometryFlotation separation of cobalt and copper from fresh waters and
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Minerals Free Full-Text Flotation Separation of Covellite and
The flotation separation of enargite from copper sulfide minerals is difficult owing to the similar floatability and reagent adsorption characteristics of these minerals. In this study, the effect of oxidation treatment using NaClO flow with FeCl3 on the flotation separation of covellite and enargite was systematically investigated.Besides flotation, gravity separation [21,22,23,24], leaching and selective flocculation [26,27,28] have also been used for the processing of copper ore. It is evident in the literature that there is a lack of information on copper flotation, and most of the literature is confined to sulphide ore.Minerals Free Full-Text Sustainable Use of Copper Resources
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Mineral Processing SpringerLink
After the 1960s, fine particle gravity separation, fine particle flotation, wet high-intensity magnetic separation, and mineral processing-metallurgy process all saw major development. In terms of mineral processing theories, Rittinger’s Textbook of the Processing Art published in 1867 initiated the preliminary mineral processing theory system.Separation effects of sodium polyacrylate (PAAS) and gum Arabic (GA) on flotation of chalcopyrite and magnesium silicate minerals using potassium butyl xanthate (PBX) as collector wereEnhancing flotation separation of chalcopyrite and magnesium
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The Critical Role of Pulp Density on Flotation
In nickel-copper sulfide ore processing, serpentine is a common gangue mineral encountered in complex sulfide ores and can easily cause entrainment during flotation [].Large amounts of serpentine This study aims to investigate the effects of operational variables on concentrate grade, recovery, separation efficiency, and kinetic parameters of the copper flotation process. For this purpose, the effects of the pulp solids content, collector and frother dosage, and preparation and concentrate collection time were studied using a Combined Effect of Operating Parameters on Separation
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Selectively Depress Copper-Activated Pyrite in Copper Flotation
Copper sulphide ore deposits are of great economic significance for copper extraction. In order to enrich copper sulphides, froth flotation at alkaline pH is typically applied to reject associated gangue minerals, in particular pyrite before the subsequent pyrometallurgical treatment to extract copper from copper sulphides [].The 2,3-disulfanylbutanedioic acid (DMSA) was found to be a selective depressant in the flotation separation of copper– molybdenum sulfides. The flotation results suggest that a low dosage of DMSA has a strong depression effect on chalcopyrite in the pH range between 4 and 12. At pH 6, the recoveries of molybdenum are up to 85%,Effect of copper ions on the flotation separation of chalcopyrite
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A Review of Recent Advances in Depression Techniques for Flotation
Porphyry copper deposits (PCDs) are some of the most important sources of copper (Cu) and molybdenum (Mo). Typically, the separation and recovery of chalcopyrite (CuFeS2) and molybdenite (MoS2), the major Cu and Mo minerals, respectively, in PCDs are achieved by two-step flotation involving (1) bulk flotation to separate Cu–Mo concentrates and The flotation separation of common copper-lead ore includes copper depression and lead flotation, or lead depression and copper flotation. The former often uses cyanide to depress chalcopyrite, pyrite, and sphalerite; the latter uses dichromate to depress galena, and also has depression effect on pyrite [28,29].Mineralogy and Innovative Flash Flotation Separation of Cu-Pb
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A New Collector for Effectively Increasing Recovery in Copper
A new method, staged flotation for effectively increasing the recovery of ultra-fine copper oxide ore with a new type of collector (ZH-1, C3-5 carbon chain xanthate) is proposed for the first time. The flotation process and mechanism were examined by flotation tests, entrainment rate analysis, laser particle size experiments and Micro-flotation tests results demonstrated the carrageenan could depress the floatability of talc and had no effect on the chalcopyrite flotation. After adding 2400 g / t carrageenan, achieving recovery and grade of copper up to 91.86 % and 32.42 % from a feeding with 16.94 % Cu, respectively.Flotation separation of chalcopyrite from talc using a new
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