Effect Of Ph On Copper Flotation
Copper Flotation: Effects of Particle Size, Grinding and Agitation
In the current research work, influences of particle size, grinding time, and agitation rate on the flotation of a copper sample from Sungun copper mine (E. Azerbaijan, Iran) containing 0.66% Cu ...
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Recovering Copper Mineral
into the flotation cell and height of the froth layer formed were observed by high speed camera using the 1000 mL measuring cylinder. 3 EXPERIMENTAL RESULT 3.1 Effect of pH on the …
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Improving Flocculation Performance of Copper Flotation …
This study investigated the flocculation performances of a new generation UMA (Unique Molecular Architecture) technology polymer and conventional polymers in the solid–liquid separation process of the copper flotation tailings. The effects of pH, flocculant type and dose, mixing duration, and rate on flocculation were examined using jar ...
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Effect of calcium hypochlorite on flotation separation of covellite and
In the micro-flotation tests, the flotation process was carried out using ammonium dibutyl dithiophophate (ADD) as the collector, Ca(ClO) 2 as the depressant, and sodium hydroxide (NaOH) and hydrochloric acid (HCl) as the pH regulators. All reagents used for the flotation tests were of analytical grade, except ADD, which was an industrial grade product from Shanghang …
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Considering the effect of pulp chemistry during flotation on …
Through all four figures (Fig. 3, Fig. 4, Fig. 5, Fig. 6) three distinct regions were observed, namely, a high Eh region (1IS, pH 9, 700–730 mV), a pH 11 region (1 IS, pH 11, −100 to −20 mV) and a high IS region (5 IS, pH 9, −40 to 80 mV).With the exception of copper, the highest valuable mineral recoveries were achieved in the high IS region, indicating that the …
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Effect of clay minerals on pulp rheology and the flotation of copper
Lime was used to control the pH 9.5 at the end of grinding and during flotation. 2.3. ... The presence of Q38, Snobrite or bentonite had a deleterious effect on copper flotation, the extent of which depended on the pulp viscosity resulted. The higher the pulp viscosity, the lower was the copper recovery. ...
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Effect of pH on Bulk Flotation of Copper – Molybdenum
Graphic Conclusions of this particular set of flotation tests: Copper – Irrelevant of pH, with enough float time and reagents, you usually reach a terminal bulk rougher Cu recovery in the low 90s (Green Box) – pH 10.3 gives you that terminal recovery in less mass (9%), more selectively, at a higher Conc grade (2.5%) VS the rest.
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Typical roles of metal ions in mineral flotation: A review
Separation and Purification Technology, 2018, 200: 300âˆ'306. [101] ZHAO Qiang, LIU Wen-gang, WEI De-zhou, WANG Wen-dan, CUI Bao-yu, LIU Wen-bao. Effect of copper ions on the flotation separation of chalcopyrite and molybdenite using sodium sulfide as a depressant [J]. Minerals Engineering, 2018, 115: 44âˆ'52. [102]
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Effect of pH on Copper Cleaner Flotation (after …
Accordingly, higher pH levels were adopted for cleaner flotation to enhance selective flotation of copper VS pyrite. Concentrate regrinding to a product size of 80% passing 30 µm is adequate to yield, after three stages of …
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Redox potential control during flotation of sulphide minerals
In this study the effect of pH on potential in solution and sulphur minerals flotation is discussed with various electrodes. The electrodes were platinum, gold, chalcopyrite, pyrite and galena.
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Flotation of Nickel-Copper Sulphide Ore: Optimisation …
the flotation recovery of Ni, Cu and Co from a nickel-copper sulphide ore. The effect on flotation performance of various parameters such as pH, collector dosage, % solids and depressant dosage at different levels was investigated. Therefore, the main objective of the study was to optimize the process
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Basic Principles & Variables Affecting Froth Flotation
The effect on principal flotation agent and fineness of grinding has already been discussed. The relation between percentage of solids and quantity of minor flotation agent seems to point to the conclusion that it is the concentration of the aqueous solution of the minor agent, rather than the quantitative relation between the minor agent and ...
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The effect of sodium hydrosulfide on molybdenite flotation …
In order to identify the effect of modified pH values through NaHS additions on molybdenite flotation, the flotation of 106 µm and 53 µm molybdenite in the pH range from 7 to 11 adjusted by NaOH additions was conducted and the results are shown in Fig. 4. It can be seen that 90% and 54% molybdenite recoveries were achieved at the end of ...
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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 common to blend the …
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The effect of water quality change on copper flotation
This manuscript examines these and other effects through process simulation of a flotation plant for copper ores. Based on these simulations, the relationship between particle size, energy ...
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Flotation of copper oxide minerals: A review
Abstract. Copper oxide minerals are important copper resources, which include malachite, azurite, chrysocolla, cuprite, etc. Flotation is the most widely used method for the …
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Effect of pH on ion and precipitate flotation systems
DOI: 10.1021/AC60247A009 Corpus ID: 97485431; Effect of pH on ion and precipitate flotation systems @article{Rubin1967EffectOP, title={Effect of pH on ion and precipitate flotation systems}, author={Alan J. Rubin and James Donald.
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pH Control in Copper Flotation for Maximized Product Yield
Copper ore may be separated from crude ore using a flotation process that takes advantage of the physical (as opposed to chemical) properties of small copper ore particles. To maximize …
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Effect of clay crystal structure on froth rheology in flotation
Farrokhpay et al. [8] reported that in a copper flotation talc affected both copper recovery and concentrate grade via changing froth stability due to its natural hydrophobicity. It appears that the effect of clays on flotation performance closely depends on the clay nature.
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The Importance of pH in Flotation
The Importance of pH in Flotation. In flotation, pH control is a vital method to control selective mineral separation. A standard depressant that is used is an Alkali. An Alkali is any substance that when mixed with Acid will neutralize each other and form a new chemical …
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The effect of sulphite on the xanthate-induced flotation of copper
The effects of flotation parameters such as collector type, collector amount, particle size, and pH conditions, were investigated to obtain a bulk copper-zinc concentrate.
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Relation of bubble size, grade and recovery in the copper flotation
Effect of frother amounts on bubble size and copper recovery for Madenköy ore with MIBC at pH 12 and Hanönü ore with F-549 at pH 8.5. Our findings in Fig. 4, Fig. 5 show that higher frother amounts led bubble size and copper grade to …
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Effect of pH on Copper Flotation Recovery VS …
Here, rougher flotation is most Selective at a pH of 9.5 as pH levels in the 9 to 10 range yielded 1% to 2% better recoveries. Mineralogy data also supports this and shows between 3% and 10% of the copper is present …
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Effect of copper ions on the flotation separation of …
Flotation results indicated that copper ions dramatically reduced the recoveries of copper and molybdenum, and increased the inhibition effect of sodium sulfide; that is, the flotation separation ...
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Effect of pH on ion and precipitate flotation systems
Effect of pH on ion and precipitate flotation systems. Alan J. Rubin; and ; James Donald. Johnson; Cite this: Anal. Chem. 1967, 39, 3, 298–302. ... Ion Flotation of Copper Using Ethylhexadecyldimethyl-ammonium Bromide. Separation Science and Technology 1979, 14 (3) ...
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Effect of pH on Pulp Potential and Sulphide Mineral Flotation
Control of pH is one of the most widely applied methods for the modulation of mineral flotation. In this study the effect of pH on potential in solution and sulphur minerals flotation is discussed with various electrodes. The electrodes were platinum, gold, chalcopyrite, pyrite and galena. In solution, potentials were linearly dependent on pH with a different slope …
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Effect of pH and Precipitations on Copper–Molybdenum Rougher Flotation
Effect of pH and precipitations on copper–molybdenum ore rougher flotation has been investigated in seawater with flotation experiments followed by precipitation estimation with thermodynamic ...
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A significant review of froth stability in mineral flotation
The flotation pulp is a highly intricate system influenced by various conditions such as frother and collector types, pH levels, and the properties of suspended particles, particularly their hydrophobicity and size (Johansson and Pugh, 1992). These factors can significantly affect froth performance and, by extension, the overall efficiency of ...
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Combined Effect of Operating Parameters on Separation …
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 Taguchi experimental …
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Effect of regrinding conditions on pyrite flotation in the …
In order to represent the pyrite flotation behaviour in the rougher stage at Telfer, 90 wt.% flotation recovery was achieved by increasing the reagent dosage and adding copper ions as the activator. Fig. 2 shows pyrite flotation recovery as a function of flotation time with stainless steel grinding media. In the absence of copper ions, pyrite displayed poor floatability …
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