US3780860A Flotation of copper sulfide ores Google Patents
A novel flotation promoter used in the concentration of copperbearing ores for the efficient selective flotation of copper values, including chalcopyrite, with suppression of iron Flotation of sulphidic and oxidic copper minerals is reviewed, with particular reference to previous studies of refractory A Review of the Flotation of Copper Minerals
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US5078860A Sequential and selective flotation of sulfide ores
A sequential flotation process for the separation of components of an ore containing sulfides of copper and molybdenum involves initially effecting selective flotation of the 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 Minerals Free Full-Text Flotation of Copper Ores with
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The Challenges and Prospects of Recovering Fine
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 The results indicated that the copper oxide flotation recovery increased from 79.67% to 83.38%, and the grade also raised from 18.08% to 18.14% after using the staged flotation technology. The A New Collector for Effectively Increasing Recovery in
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Minerals Free Full-Text Flotation and Tailing Discarding
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 They reported that nearly 91.4% copper with the grade of 8.13% was recovered under optimal conditions including 5 g/t Z11, 34 g/t C-4132, 5 g/t A3477, 15 g/t AF65, and 8 g/t MIBC. Ávila-Márquez et al. Parametric Optimization in Rougher Flotation
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Separation of Copper-Molybdenum Flotation Concentrate by
A molybdenum (Mo) concentrate assaying 6.00% copper (Cu) and 19.01% Mo was magnetically sorted using a diamond-shaped steel rod medium mesh at a feed After that, copper rougher-scavenger flotation was carried out for 10 min. Copper scavenger tailings were conditioned again with 15 g/t CMC, 50 g/t SIPX and 10 g/t Nasfroth 240 reagents for two Improving Nickel Recovery in Froth Flotation by
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Minerals Free Full-Text Flotation Performance and
Froth flotation is an economic separation technique which has been widely used in the copper mining industry to recover copper minerals from gangue minerals. In froth flotation, copper oxide Introduction. Calcite is one of the most abundant simple salts in the earth’s surface and in sedimentary rocks; it occurs in the form of armours and skeletal frames of marine creatures. It is the prime constituent of limestone, chalk etc. In igneous rocks, calcites are present in the form of fine-to-coarse grains.An Overview of Calcite Recovery by Flotation Springer
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Improving Flocculation Performance of Copper Flotation Tailings
Dewatering and water recycling are therefore essential for mineral processing operations. Copper is one of the most widely used metals in various industries. About 20 million tons of copper were produced worldwide in 2019 (Esmaeili & Aslani, 2019). Large amounts of tailings are produced when copper minerals are concentrated by 4.1 Flotation. Figures 1 and 2 present lab scale batch flotation results from two separate studies, focusing on graphite and copper-activated pyrite, respectively. In Fig. 1, the baseline graphite recovery where no starch is used yields a recovery of 93.9 ± 0.5%.This decreases slightly to 82.3 ± 4.3% for NWS dosed at the lowest depressant The Potential of Modified Starches as Mineral Flotation
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Flotation of copper oxide minerals: A review ScienceDirect
Copper oxide minerals are important copper resources, which include malachite, azurite, chrysocolla, cuprite, etc. Flotation is the most widely used method for the enrichment of copper oxide minerals in the mineral processing industry. In this paper, the surface properties of copper oxide minerals and their effects on the mineral flotationIndustries. Froth flotation is applied to a wide range of separations. An estimated 1B tons of materials are processed in this manner annually. Mineral processing Froth flotation to separate plastics, Argonne National Laboratory Froth flotation cells to concentrate copper and nickel sulfide minerals, Falconbridge, Ontario. Froth flotation is a process for Froth flotation
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Mineralogical Prediction on the Flotation Behavior of Copper
The copper ore in Chilean copper porphyry deposits is often associated with molybdenum minerals. This copper–molybdenum (Cu–Mo) sulfide ore is generally mined from various locations in the mining site; thus, the mineral composition, oxidation degree, mineral particle size, and grade vary. Therefore, in the mining operation, it is Flowsheet for treatment of Copper Sulfide ores rich inminerals such as chalcopyrite with gold and silver as well as arsenopyrite. The above flowsheet is designed for the treatment by flotation of copper as chalcopyrite with gold and silver values. The ore, ranging from 60-65% silica, with pyrite, arsenopyrite, and calcite with 3 to 4% copper.Copper Sulfide Flotation 911 Metallurgist
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Flotation of copper sulphide from copper smelter slag using
Present work focuses on the differences in the performances obtained in the froth flotation of copper smelter slag with multiple collector viz. sodium iso-propyl xanthate (SIPX), sodium di-ethyl dithiophosphate (DTP) and alkyl hydroxamate at various dosages. Flotation tests were carried out using single collectors as well as various A Copper Flotation Flowsheet. Because the copper in this type of ore usually assays only plus or minus 1% copper, the porphyry copper operations must be relatively large in order to be commercial. Copper Flotation 911 Metallurgist
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Improving the Copper-Molybdenum Ores Flotation
The search for effective reagents for the flotation of non-ferrous metals from mineral raw materials is an actual problem. The article discusses the results of research on improving the technology of The use of alkaline pressure oxidation to pretreat refractory gold ore often results in insufficient gold recovery (<60%) in downstream thiosulfate leaching. To improve gold recovery, flotation Minerals Free Full-Text Flotation of Carbonaceous
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Parametric Optimization in Rougher Flotation Performance of a
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, Copper (or metal) recovery percentages of the flotation circuits of a copper mine/mill are extremely important. For example, it is estimated that for a plant processing 50,000 tonnes of ore containing 1% copper per day, increasing the copper recovery from 86 to 87% of that contained in the ore could increase revenues by approximately $4 million annually.Froth Flotation an overview ScienceDirect Topics
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The ion flotation of copper, nickel, and cobalt using the
Heavy metal contaminated waters are a significant environmental hazard, which require novel treatment methodologies. Further, the metals which might be recovered from these streams have significant intrinsic value, if they can be collected and concentrated. This work demonstrates, for the first time, the use of surfactin, an The electrolytic flotation has mainly been used for small plants with capacity between 20 and 30 m 3 h −1. In dissolved air flotation, the bubbles are produced by controlling the pressure of water saturated with air. Three main processes of dissolved air flotation include vacuum flotation, microflotation, and pressurized flotation.Flotation an overview ScienceDirect Topics
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Flotation of a copper sulphide ore from Okiep using thiol
Figures 1 and 2 show the copper and sulphur recoveries and that the lowest recoveries were obtained with di-C2-DTC. Figure 1 shows that the copper recovery by flotation was dependent on the dosage or concentration of C2-X, di-C2-DTP and di-C2-DTC. In the case of the xanthate and the dithiophosphate, the copper recoveries obtained with collectorAbstract An analysis of flowsheets for processing sulfide and oxide copper ores, reagent modes, processing equipment, and flotation indicators in some domestic and foreign processing plants and productions is carried out. Autogenous and semiautogenous mills are commonly used in the primary grinding stage in ore processing plants, which Current Status of Copper-Ore Processing: A Review
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Critical importance of pH and collector type on the flotation of
Mineralogical analysis. The elemental composition of the flotation feed, the lead and zinc concentrate, and tailing are provided in Table 1.As it can be seen, the amounts of lead and zinc are 0.93
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