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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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Copper sulphide ores are normally finer grained than porphyry copper ores and require finer grinding (i.e. 70–80% <200 mesh) [7]. 3.1. Reagents Used In the Flotation of Sulphide Ores Commonly used reagents in industrial flotation plants are Collector, Frother, Activator, Depressants and pH modifiers.
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The aim of this study is to apply process mineralogy as a practical tool for further understanding and predicting the flotation kinetics of the copper sulfide minerals. The minerals' composition and association, grain distribution, and liberation within the ore samples were analyzed in the feed, concentrate, and the tailings of the flotation …
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The continuous development of the global economy has resulted in a high demand for copper production and high copper consumption [1], [2], ... For mixed oxide-sulfide copper ores, the chelating collector can achieve simultaneous flotation of copper oxide and copper sulfide minerals.
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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. Copper minerals usually occur in low grade deposits and require …
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The dominant challenge of current copper beneficiation plants is the low recoverability of oxide copper-bearing minerals associated with sulfide type ones. Furthermore, applying commonly used conventional methodologies does not allow the interactional effects of critical parameters in the flotation processes to be investigated, …
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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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The mineral composition of copper–cobalt ores is more complex than that of copper sulfides, and it is also difficult to discard tailing efficiently in primary flotation for the fine-grained disseminated of ore. In this work, a mineral liberation analyzer (MLA) was employed to study the characteristics of minerals. As a significant mineralogical …
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Copper-molybdenum porphyry ores often contain copper sulfide minerals, molybdenite, pyrite, iron oxides, and gangue minerals. Due to the differences in the flotation properties of sulfide minerals and associated gangues, flotation is the most common method for processing copper-molybdenum sulfide ores.
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More than half of the global cobalt supply from primary sources is currently produced in the Democratic Republic of Congo (DRC) from ores containing copper-cobalt oxides or copper-cobalt sulphides. Where oxide and sulphide cobalt-bearing copper minerals occur together, efficient recovery of copper and cobalt is known to be extremely difficult. This …
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Flotation of Copper Ores. In most plants engaged in the flotation of ores containing copper-bearing sulphide minerals with or without pyrite, pine oil is employed as a frother with one of the xanthates or aerofloat reagents or a combination of two or more of them as the promoter.
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Flotation of mixed copper oxide and sulphide minerals with xanthate and hydroxamate collectors ... which is needed in order to meet rapidly growing global demand and to increase government revenues through mining royalties. This article reviews the major process flow sheets and reagent suites in practice at concentrators operated in the DRC …
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Keywords: flotation, copper sulfide, reagents addition scheme, DMDT 1. Introduction 1.1. Copper sulfide flotation Flotation is one of the most important method to separate valuable minerals based on the difference in physiochemistry of surface of particles (Nguyen and Schultze, 2004; Furstenau et al., 2007) Among
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As ore grades constantly decline, more copper tailings, which still contain a considerable amount of unrecovered copper, are expected to be produced as a byproduct of froth flotation. This research reveals the occurrence mechanism of copper minerals in typical copper sulfide tailings using quantitative mineral liberation analysis (MLA) …
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Flotation is a common mineral processing method used to upgrade copper sulfide ores; in this method, copper sulfide mineral particles are concentrated in froth, and associated gangue minerals are separated as tailings. However, a significant amount of copper is lost into tailings during the processing; therefore, tailings can be considered …
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The global copper market consumes approximately 18–19 Mtpa as refined copper (Brininstool, 2015). In particular, copper can be economically obtained from ores containing a number of different copper sulphide minerals, each containing varying tenors or copper and having different flotation requirements and characteristics.
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The gradual decrease of global copper resources is among the most urgent challenges for the mining industry. Sustainable utilization of copper sulphide flotation concentrate from iron oxide copper gold (IOCG) deposits is often constrained by the impurity elements (e.g. U, Th and F) and high levels of gangue minerals (e.g. iron …
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