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Kinetics and recovery of xanthate-copper compounds by ion flotation techniques M Reyes, F Patiño, FJ Tavera, R Escudero, I Rivera, M Pérez Journal of the Mexican Chemical Society 53 (1), 15-22, 2009
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The results of experimental investigation of ion flotation in solution of cerium, samarium, and europium nitrates as well as of sodium dodecyl sulfate, which was used as flotation reagent, were reported. The dependences of the distribution coefficients of rare earth ions in the ion flotation on pH of an equilibrium aqueous phase were obtained. Comparison of an extraction pH with a pH of ...
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1 Froth Flotation – Fundamental Principles Froth flotation is a highly versatile method for physically separating particles based on differences in the ability of air bubbles to selectively adhere to specific mineral surfaces in a mineral/water slurry. The particles with attached air …
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Abstract. In flotation, metal ions possess significant roles that are usually fulfilled by either selectively activating or depressing the target minerals. Despite that tremendous efforts have been made to address the roles of metal ions in flotation, it still lacks a comprehensive review, especially to compare various ions instead of focusing ...
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M. Hiraide, in Encyclopedia of Analytical Science (Second Edition), 2005 Ion Flotation. Ion flotation originally meant the process by which surface-inactive ions are floated with surfactants of opposite charge to the ions to form a scum on the solution surface.
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In this study, another subgroup of flotation, ion flotation, is employed for coupling with FAAS. Several In order to obtain UV/Vis spectra, 3 mL of MPBI (1.5 10 4 mol/L) in recent investigations in the field of preconcentration have benefited methanol were transferred to 1.00-cm quartz cell.
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The ion flotation process showed low-energy consumption, limited volume demands, reduced sludge volumes, and selective treatment 96. The precipitation flotation process is …
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The Ion is a Type III, low-profile life jacket designed with 16.3 pounds of flotation and carries the US Coast Guard Certification, through testing by Underwriters Laboratories (UL). How To: Choose the Right Life Jacket (4:31)
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Flotation and FAAS Analyses of Some Ion Traces J. Chin. Chem. Soc., Vol. 58, No. 2, 2011 203 the perfect flotation separation of the metal ions was Table 2. Influence of type of surfactant (0.05% m/v) on achieved at BBIMB concentration greater than 4.5 × 10-5 recoveries of …
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May 2009 - Sep 2009 5 months Elko, NV Conducting bench flotation testwork for sulphide rock and support to the development of gold thiosulfate leaching and ion exchange.
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Liu and Doyle (2009) also investigated the effect of dodecyldiethylenetriamine as a chelating surfactant on the ion flotation of Co(II), Ni(II) and Cu(II). They showed that one metal ion could be ...
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The ion flotation of Cd2+ ions has been investigated from the surface chemical point of view in comparison with the case of Cu2+ ions reported previously. The effects of the change in the pH, the a...
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Abstract. An experimental investigation is presented of the batch ion flotation of the transition metal cations Cr 3-, Fe 3+, Mn 2+, Co 2+, Zn 2+, Ag +, Cd 2+, and In 3+ from acidic aqueous solutions with sodium dodecylsulfonate and sodium dodecylben-zenesulfonate as anionic surfactants. The selectivity sequences Mn 2+ < Zn 2+ < Co 2+ < Fe 3+ < Cr 3+ and Ag + < Cd 2+ < In 3+ are established ...
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In the original studies, ion flotation was mostly used for pre-concentrating precious metals from dilute solutions. To date, the ion flotation method has also been applied for wastewater and water treatment, 10–12 recovery of precious metals, 13,14 pre-concentrating of rare earth elements, 15,16 and selective separation of multicomponent ions. 17,18 The current state of the application of ...
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The experimental results and thermodynamic investigation of the ion flotation of Y(+3), Er(+3) and Yb(+3) in aqueous systems with surface active substance are presented. Distribution coefficients of rare-earth elements in the approach of ion flotation were determined. It was shown, if pH = 5,5 – Y (+3) is removed, pH = 6,4 - Er(+3) is selectively removed and pH > 8,0 - Yb(+3) is extracted ...
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Maciejewski, 2009). Koide et al. (1993) investigated resorcinol-type calix[4]arenes with alkyl side chains as collectors in competitive flotation of alkali metal cations and showed selective flotation of Cs+ +over Na and K+ cations from dilute aqueous solutions. On the other hand, Koide and co-workers (1996) separated UO 2 2+ cations
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Ion flotation is a separation process that removes metal ions from solution using air bubbles and surfactants (Sebba, 1959), and it has potential to be a simple, environmentally-friendly remediation strategy for uranium-contaminated waters (Mahmoud and Othman, 2018; Shakir, 2007; Shakir and Samy, 1980). The basis of the ion flotation separation ...
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Principles of flotation. ：Sutherland,K. L. ：Melbourne : Australasian Institute of Mining and Metallurgy, 1955. ：1955.
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12%Solutions containing copper ions are produced at copper mines due to its dissolution from ores and dumps. It is important to recover these ions to prevent this toxic element from entering the environment and because it could be economical. We investigated the use of ion flotation for extracting Cu ions from diluted mine water from the Veshnaveh Mine in Qom, Iran. …
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Ion flotation—its potential for hydrometallurgical operations. International Journal of Mineral Processing 2003, 72 (1-4), 387-399. DOI: 10.1016/S0301-7516(03)00113-3. Fiona M. Doyle, Zhendong Liu. The effect of triethylenetetraamine (Trien) on the ion flotation of Cu2+ and Ni2+.
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Abstract During the flotation process, hydrophobic minerals are transferred to the by bubbles. The size of bubbles has a significant influence on the capture probability of the bubbles and particles, hence affecting the flotation efficiency. Effective regulation of the bubble size is a premise for achieving a controllable flotation index.
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Figure 7. Grade-recovery curve of the Gonçalo lepidolite froth flotation. Similarly to what occurred with spodumene, it was not possible to obtain concentrates with Li 2 O grades close to the Gonçalo lepidolite Li 2 O content (5.58 % Li 2 O [31]), even after the cleaning stage, having been 4.50 % Li 2 O the maximum value achieved. The shape of the grade-recovery curve indicates that the ...
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The results of experimental investigation of ion flotation in solution of cerium, samarium, and europium nitrates as well as of sodium dodecyl sulfate, which was used as flotation reagent, were reported. The dependences of the distribution coefficients of rare earth ions in the ion flotation on pH of an equilibrium aqueous phase were obtained. Comparison of an extraction pH with a pH of ...
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12%Ion flotation is an adsorptive bubble separation technique capable of recovering or removing metal ions from dilute aqueous solutions [31,32,33,34,35]. For a dilute solution, ion flotation can potentially be an interesting alternative hydrometallurgical technique to recover and separate valuable metals .
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Ion flotation is very useful for treating aqueous leachates from which the majority of the metals of importance has been removed yielding a dilute aqueous solution in which metals of great value still persist, and as water is the solvent often used for the leaching process that makes ideal conditions for ion flotation.
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The thermodynamic properties of hydroxo compounds and the mechanism of ion flotation for cerium, europium, and yttrium December 2009 Russian Journal of Physical Chemistry 83(12)
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12%Published: 09 December 2009; The thermodynamic properties of hydroxo compounds and the mechanism of ion flotation for cerium, europium, and yttrium. D. E. Chirkst 1, O. L. Lobacheva 1, I. V. Berlinskii 1 & M. I. Sulimova 1 Russian Journal of Physical Chemistry A volume 83, pages 2022–2027 (2009)Cite this article
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12%The results of experimental investigation of ion flotation in solution of cerium, samarium, and europium nitrates as well as of sodium dodecyl sulfate, which was used as flotation reagent, were reported. The dependences of the distribution coefficients of rare earth ions in the ion flotation on pH of an equilibrium aqueous phase were obtained. Comparison of an extraction pH …
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The Zn(II) and Mn(II) removal by an ion flotation process from model and real dilute aqueous solutions derived from waste batteries was studied in this work. The research aimed to determine optimal conditions for the removal of Zn(II) and Mn(II) from aqueous solutions after acidic leaching of Zn-C and Zn-Mn waste batteries. The ion flotation process was carried out at ambient temperature and ...
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Ion flotation by F. Sebba, 1962, Elsevier Pub. Co edition, in English
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An experimental investigation is presented of the ion flotation of dichromate from aqueous solution with a cationic surfactant and using a non‐ionic polymer as a flocculant aid. A dissolved‐air, continuous flow unit is used (with a surfactant‐dichromate premix period of 1 hr.) with a feed rate of 120 liters/hr. of a stream containing from ...
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