Flotation of an Oxidized Copper Sulfide Ore
Kansanshi copper mine is situated in the north western province of Zambia. As a result of the mineral variations, the processing plant treats three distinct ore types, viz. oxide, sulphide and mixed.
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(PDF) Flotation of mixed copper oxide and sulphide minerals …
Flotation of mixed copper oxide and sulphide minerals with xanthate and hydroxamate collectors ... M.H., Woodcock, J.T., 1978. Optimization and control of laboratory flotation techniques, which are widely used on copper oxide ore, sulphidisation of oxidized copper ores with an ion selective electrode. In: can not be used in sulphide/oxide ...
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Development and optimization of mixed sulphide/oxide copper ore
Historically, little or none of the mixed float tails was sent to the leach circuit, so more effort was made to recover the copper oxide and carbonate minerals by flotation in the mixed circuit ...
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Upgrading of talc-bearing copper-nickel sulfide ore by froth flotation …
The rougher flotation and closed-circuit flotation tests of copper-nickel sulfide ore (1.0 kg) were performed on XFD-63 type flotation machines of different capacities (3.0 L, 1.0 L, obtained from Wuhan Exploration Machinery Co., Ltd.) [5], with mechanically stirring speed of 1610 rpm.The 3.0 L cell was used for rougher and scavenger stages, and the 1.0 L …
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Flotation of mixed oxide sulphide copper-cobalt minerals …
Bulk flotation experiments with Zambian copper-cobalt sulphide ore showed superior flotation performance, with improved kinetics, when using Sodium Ethyl Xanthate () as a collector instead of a blend of alkyl dithiophosphate and thionocarbamate collectors, with copper sulphides floating more rapidly than cobalt sulphides (Mainza et …
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Novel treatment for mixed copper ores: Leaching ammonia
Oxide and/or mixed ore flotation are separated into two distinct treatments: (i) direct flotation and (ii) sulfating flotation (controlled by potential sulfidation). ... Flotation of mixed copper oxide and sulphide minerals with xanthate and hydroxamate collectors. Miner. Eng., 22 (2009), pp. 395-401, 10.1016/j.mineng.2008.11.005.
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Flotation of mixed copper oxide and sulphide …
1. Introduction. Many copper sulphide mines around the world have significant copper oxide ore reserves associated with the larger primary cop-per sulphide deposit. The …
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Flotation of Gold and Gold-Bearing Ores
Flotation of Copper–Gold Ores. For the bulk flotation of copper minerals and gold from supergene copper ores, it is normal practice to add a xanthate as the primary collector and dithiophosphate as a secondary collector (Bulatovic, 1997). This combination gives satisfactory results in respect of copper concentrate grade and copper and gold ...
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Flotation of copper oxide minerals: A review
For mixed oxide-sulfide copper ores, the chelating collector can achieve simultaneous flotation of copper oxide and copper sulfide minerals. However, the limitation of chelating collectors is their lack of selectivity, and they also adsorb to …
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Comparison of single and mixed reagent systems for flotation of copper …
The present study investigates the application of thiol collectors and their mixtures on the flotation of copper-silver-gold minerals from a new copper mine located in northern Norway. The copper minerals (chalcopyrite, chalcocite, and bornite) are uniformly distributed in all size ranges in the ore sample under study.
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Comparison of single and mixed reagent systems for flotation of copper …
Fig. 12 (a) depicts the results of copper ore flotation with respect to sequence of collector addition in the presence of xanthate and thionocarbamate collector mixture in the ratio 1:1. The Cu recovery and grade is maximum when BBT was added first in the flotation cell.
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Treatment of Mixed Sulfide Oxide Ores of Copper
Many of our largest copper deposits contain both sulfide and oxidized copper minerals. The large porphyry mines, with a total copper content of from 1.3 to 2.0 per cent., send to their mills ore with an oxide content of from 0.2 to 0.4 per cent. While the recoveries of the sulfide minerals are considered satisfactory, using modern flotation ...
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Copper Flotation
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. The flowsheet in this study illustrates a typical 3,000 ton per day operation. In general most operations of this type have two or more …
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Review, evolution, and optimization of the treatment of Kansanshi mixed
The copper sulphides present in the blend were bornite and chalcopyrite, while the oxides were malachite and minor azurite.From previous flotation investigations of mixed copper oxide and sulphide ...
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Flotation of mixed copper oxide and sulphide minerals
A different approach was made towards flotation of mixed copper ore using xanthate and hydroxamate as traditional and chelating collector to recover both sulphide and oxide minerals of copper ...
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The recovery of oxide copper minerals from a complex copper ore …
The oxide ore has a much higher grade than the mixed and sulphide ores but contributes less to the resource (Broughton et al., 2002). The preferred method for the flotation of oxide and mixed copper ores is sulphidisation. The reagents are typically sodium sulphide (Na 2 S) and sodium hydrosulphide (NaHS). Slug sulphidisation, which …
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Application of macromolecular organic polymer S-7261A in …
DOI: 10.1016/j.mineng.2022.107560 Corpus ID: 248144328; Application of macromolecular organic polymer S-7261A in arsenic removal by flotation of refractory mixed copper ore @article{Liao2022ApplicationOM, title={Application of macromolecular organic polymer S-7261A in arsenic removal by flotation of refractory mixed copper ore}, author={Xingjin …
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Effect of Desliming on Flotation Response of Kansanshi Mixed Copper Ore
The flotation response of sulfide minerals in the Kansanshi mixed oxide-sulfide copper ore is superior compared to oxide minerals, for the given flotation conditions. The grade-recovery profiles and the flotation kinetics show improved results for copper sulfide minerals than oxide minerals.
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Copper Mining and Processing: Processing Copper Ores
Copper processing is a complicated process that begins with mining of the ore (less than 1% copper) and ends with sheets of 99.99% pure copper called cathodes, which will ultimately be made into products for everyday use.The most common types of ore, copper oxide and copper sulfide, undergo two different processes, hydrometallurgy and …
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[PDF] Flotation of mixed copper oxide and sulphide …
DOI: 10.1016/J.MINENG.2008.11.005 Corpus ID: 94500853; Flotation of mixed copper oxide and sulphide minerals with xanthate and hydroxamate collectors @article{Lee2009FlotationOM, title={Flotation of mixed copper oxide and sulphide minerals with xanthate and hydroxamate collectors}, author={K. A. Lee and Dan …
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Flotation of mixed copper oxide and sulphide …
This investigation has shown that using n-octyl hydroxamates (AM28 made by Ausmelt Limited) in conjunction with traditional sulphide collectors can successfully …
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Minerals | Free Full-Text | Mineralogical Prediction of Flotation
As part of a study investigating the influence of mineralogical variability in a sediment hosted copper–cobalt deposit in the Democratic Republic of Congo on flotation performance, the flotation of nine sulphide ore samples was investigated through laboratory batch kinetics tests and quantitative mineral analyses. Using a range of ore …
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Comparison of single and mixed reagent systems for flotation of copper
DOI: 10.1016/J.MINENG.2019.105930 Corpus ID: 202041712; Comparison of single and mixed reagent systems for flotation of copper sulphides from Nussir ore @article{Dhar2019ComparisonOS, title={Comparison of single and mixed reagent systems for flotation of copper sulphides from Nussir ore}, author={Priyanka Dhar and Maria …
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Comparison of single and mixed reagent systems for flotation of copper
Bench-scale flotation testing of a copper sulfide ore showed that ASL can effectively separate copper sulfides (85% recovery at 20% grade), GL is less effective (ca. 60% recovery and 13% grade ...
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Minerals | Free Full-Text | Sustainable Use of …
In comparison, the hydroxamate (chelating) group collector succeeded in copper oxide flotation. In the mixed ore (both copper sulphide and oxide), flotation was successfully performed using the …
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A Review of the Flotation of Copper Minerals
Copper oxide mixed ore ... "Flotation of mixed copper oxide and su lphide minerals . with xanthate and hydroxamate collectors," Minerals Engineering, v ol. 22, pp. 3 95-401, 2009. [14]
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Investigation of Flotation Parameters for Copper
The two ore samples were mixed at 7 : 3 (enargite : chalcopyrite) by weight ratio to prepare a mixed ore sample with As content at 3.16 and 18.25 mass% Cu for the flotation study.
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Investigation on the Flotation Recovery of Mixed …
The flotation behavior of mixed copper ore during selective copper flotation was investigated using a geometallurgical approach. To this end, samples were …
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Parametric Optimization in Rougher Flotation …
the rougher circuit while 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
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A Review of the Flotation of Copper Minerals
This paper reviews the literature on the recovery of the above mentioned minerals by flotation. The increasing complexity of ore …
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