Microwave Treatment of Copper–Nickel Sulfide …
In this study, the microwave absorption capabilities and heating rates of the main minerals in a typical complex copper–nickel sulfide ore in the Jinchuan deposit were investigated. In addition, the …
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The Critical Role of Pulp Density on Flotation Separation of Nickel …
20 wt % where recoveries of nickel and copper at 20 wt % density were higher than nickel and copper recoveries of 40 wt % density As an example, Cu recovery increased from 70% to 82% when the pulp
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(PDF) The ion flotation of copper, nickel, and …
In this paper, ion flotation method is employed to remove metal ions such as copper, lead, zinc, cadmium and nickel from aqueous solution. Firstly, several parameters such as pH, concentration and ...
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Flotation of Nickel-Copper Sulphide Ore: …
In this study, the robust Taguchi experimental design method was used to determine the optimum conditions for the flotation of nickel, copper and cobalt from a nickel-copper sulphide ore.
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Flotation of Nickel-Copper Sulphide Ore: Optimisation of …
optimum conditions for the flotation of nickel, copper and cobalt from a nickel-copper sulphide ore. The parameters investigated include collector dosage, percentage solids, …
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The effect of crystallochemical peculiarities of nickel …
The FTIR (DRIFT) and FT-Raman studies of the products of copper–nickel ore flotation have recorded the presence of goethite, iron sulphates and sulphur element on the surface of mineral grains. It is a characteristic that the elemental suphur peaks' intensity decreased in the spectra on transition from the concentrate of between-bath to …
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Four Flotation Methods for Copper-Nickel Sulfide …
The copper-nickel mixed flotation uses ammonium butyrate black medicine and Z-200 as collectors, YB-5 as inhibitor, and copper sulfate as an activator. Through the process, ...
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Innovative technology and mechanism for comprehensive …
After roasting, copper-nickel mixed concentrate was obtained by flotation treatment. After that, the flotation tailings went into magnetic separation to recover magnetic Fe 3 O 4 and Fe. The technical route and principle are shown in Fig. 10. The simultaneous step recovery of zinc, copper, nickel and iron in electroplating sludge was …
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The effects of mixtures of potassium amyl xanthate (PAX) and …
Potassium amyl xanthate (PAX) and sodium isobutyl xanthate (SIBX) are traditional thiol collectors used in the bulk and selective froth flotation of nickel and copper sulfide mineral ores. Individually, they are not selective enough for economical low-grade nickel froth flotation. Therefore, more selective collectors or co-collectors are required.
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Flotation Kinetics: Mass & Water Recovery VS Entrainment …
Flotation batch and rate tests measure this performance and express it as a set of numbers which are the flotation kinetics of Fast and Slow fraction and rate. Flotation kinetics are therefore a numerical description of the ore's flotation behavior and also a simplified numerical description of the ore's mineralogy.
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Flotation of copper and nickel sulfides from talcose bearing ores
a process for the flotation of nickel and copper sulphide minerals from talcose bearing ores comprising producing an alkaline pulp of the ore in a suitable state of subdivision for flotation wherein at least one alkaline reagent present is soda ash or ammonium hydroxide and the pH is within the range of from about 8 to about 10.5, conditioning the resultant …
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Separating Nickel from Copper
Once the ore body is extracted, the nickel and copper minerals must be separated from the other minerals. This is done through a process known as froth flotation. In froth flotation, the ore body is crushed and mixed with water and chemicals that cause the nickel and copper minerals to float to the surface. The other minerals sink to the …
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Combined Flotation Hydrometallurgical Technology for the …
The principal technological scheme of flotation includes copper–nickel and nickel–pyrrhotite flotation cycles, the selection of a copper–nickel concentrate into a …
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The Use of Tecflote Family Collectors in Copper–Nickel Ore Flotation …
Abstract Tecflote non-ionic organic agents are investigated as potential flotation collectors for copper–nickel sulfide ores. Adsorbability of four Tecflote agents having different-structure alkyl radicals and different numbers of functional groups is analyzed. The efficiency of the agents toward copper- and nickel-bearing minerals is …
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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 …
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Lime use and functionality in sulphide mineral flotation: A …
Sulphide ores are the major source of valuable metals such as copper, lead, zinc, and nickel, as well as gold, silver, and platinum group metals (PGMs), and flotation is the dominant industrial process to recover these metals via the production of a sulphide concentrate. ... with only a few copper flotation plants adopting other solutions (e.g ...
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Combined Flotation Hydrometallurgical Technology for the Beneficiation
The copper–nickel flotation cycle (in which up to 93–95% Cu and ~50% Ni are concentrated) was carried out at minimal consumptions of the collectors (10–20 g/t), which simplifies the subsequent selection of the copper concentrate. At the increased consumption of the collectors (70–100 g/t), the nickel–pyrrhotite flotation cycle ...
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Effect of Collector & Frother Concentration on Copper Flotation
A high frother concentration produces an excessive amount of froth in the flotation cell. This increases the froth overflow and flotation rate, but, unfortunately it also decreases the concentrate grade. Collector concentration has a significant effect (either linear or non-linear) on all three quantitative response variables.
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The Critical Role of Pulp Density on Flotation Separation of Nickel …
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 in the flotation concentrate reduces the effectiveness of smelting, often resulting in the imposition of smelter penalties on mineral …
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The selective flotation of pentlandite from a nickel ore
The effect of the depressant galactomannan (KGM) on the depression of talc and the flotation of a nickel–copper sulfide ore have been investigated through microflotation, batch flotation and industrial flotation tests, zeta potential and infrared spectrum measurements. The flotation results indicated that KGM had a straining …
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Water quality impact on flotation Response: A focus on …
Overall, copper had higher flotation rates in comparison to nickel at both 25 ℃ and 60 ℃. On comparing the flotation rates for copper, generally the flotation rates were higher at 25 ℃ than at 60 ℃. The flotation rates of copper at both 25 and 60 ℃ are within a small range of 0.46–0.55 min −1.
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Recovery of copper, nickel and cobalt from acidic pressure …
The chemical analysis results of the acidic pressure leaching solutions after the pH adjustment are as shown in Table 2.Here it should be indicated that before the acidity adjustment of the acidic pressure leaching solutions, the original solutions were firstly pre-treated by activated copper powder cementation to recover some dissolved …
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[PDF] NICKEL AND COBALT ORES : FLOTATION | Semantic …
Most of the world's nickel is extracted from the mineral pentlandite, (Ni, Fe)9S8, which frequently occurs in ores containing predominantly pyrrhotite and various non-sulRdes, some of which contain magnesium (Table 1). The nickel content in such sulRde ores is generally low (0.2}3%) and varies from place to place in the same deposit. The low …
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Flotation of nickel
sequential copper–nickel flotation method is utilized, where copper is selectively floated. from pentlandite at high pH (10–11), followed by pentlandite reactivation with CuSO 4. and flotation with xanthate collector. The flotation of copper during the treatment of copper–nickel ores does not represent.
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Enhanced methods for nickel recovery from low-grade ores …
For sulfide ores, underground mining and concentrator operations become profitable with combined nickel, copper, and cobalt content above 2%. ... The second stage of froth flotation produces a nickel concentrate of 10-20% Ni, along with other by-products and gangue. Smelting is the next stage, designed to recover as much metal as …
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RU2563479C2
FIELD: mining. SUBSTANCE: reagent for flotation concentration of sulphidic copper-nickel ores consists of potassium butyl xanthate and tosyl hydrazine with the primary content of tosyl hydrazine at the level 25-50% of total amount of reagent. EFFECT: increase of extraction of nickel and copper in a concentrate. 1 tbl, 6 ex
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Distribution of Copper, Nickel, Cobalt and Iron between …
An experimental study of the equilibrium between the bottom phase (sulfide melt or copper) and slag in neutral and oxidizing atmospheres yielded dependences of the content of dissolved copper, nickel, and cobalt in the slag on that of sulfur in the sulfide melt and also the dependence of the content of dissolved copper and nickel on that of nickel in the …
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The Use of Tecflote Family Collectors in Copper–Nickel Ore …
Partial replacement of xanthate favors higher recovery of copper and nickel in flotation froth at lower recovery of nickel in flotation tailings. Tecflote non-ionic organic …
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Flotation of Nickel-Copper Sulphide Ore: Optimisation …
parameters for the flotation of base metals from a nickel-copper sulphide ore. 2. Materials and Methods 2. 1. Materials The nickel-copper sulphide ore used in this study was supplied by Trojan Nickel Mine located in Bindura, Zimbabwe. From the X-ray diffraction analysis, the main phases present in the ore were
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The effect of a new polysaccharide on the depression of …
The effect of the depressant galactomannan (KGM) on the depression of talc and the flotation of a nickel–copper sulfide ore have been investigated through microflotation, batch flotation and industrial flotation tests, zeta potential and infrared spectrum measurements. The flotation results indicated that KGM had a straining …
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Sequential Separation of Cobalt, Copper, and Nickel from …
Sulphide ores typically contain 0.5–3.0 wt% Ni and can be improved through flotation. Copper and cobalt are often valuable by-products obtained from these ores. ... Bari MF, Begum MN, Jamaludin SB, Hussin K (2009) Solvent extraction separation and recovery of copper, nickel and zinc from printed circuit board by Cyanex 272. Mineral …
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Copper, Molybdenum, Nickel and Zinc Processing | Nalco …
A copper mine in South America partnered with Nalco Water to help achieve their operational goals. The goals included improving recovery through their copper flotation circuit, increasing productivity, and ultimately reducing the total cost of operations while ensuring a safe production environment.
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The effect of sodium metabisulfite and
Cobalt is a valuable by-product obtained from processing of nickel–copper sulphide ores. From the nickel and cobalt assays of flotation products, cumulative recoveries of respective metals were estimated and plotted against each other in Fig. 2. As can be seen, all data points fall on the same line showing a 1:1 ratio between recoveries …
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Improving Nickel Recovery in Froth Flotation by …
Copper and nickel minerals are separated by sequential flotation. Copper is floated first, and the copper scavenger tails is the feed to nickel flotation. Finally, pyrrhotite and other remaining sulphur …
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NICKEL AND COBALT ORES: FLOTATION
gangue minerals, thus leading to nickel loss. Flotation Practice in Nickel Sulde Deposits Nickel sulRde minerals such as pentlandite can, in general, be separated from their gangue by Sotation ... contain very low grades of nickel (0.6%) and copper (0.04}0.4%). The easily Soatable non-sulRde min-erals dilute the grade of the concentrate and also
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Application of NARX Model in Nickel Flotation System
The main aim of flotation procedure is separating nickel and copper, flotation procedure is a physicochemical reaction procedure, under the action of reagent, copper particles are enriched on the flotation bulbs and the nickel particles are enriched on the underflow. Through five flotation columns, the nickel grade has been enhanced …
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How to get copper-nickel ores be concentrated by 4 flotation …
4、Copper-nickel ore mixing - priority flotation + tailings recovery process. When copper-nickel ores contain many different types of nickel minerals, such as nickel pyrite and needle-sulphur ...
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