effect of mn ii on quartz flotation using dodecylamine as

Effect of EDTA on quartz and hematite flotation with ...

Abstract. In this paper, a detailed study of the influence of Mn 2+ ions on quartz and hematite flotation (at pH 10.5 with starch/amine as depressor/collector) in the absence and presence of ethylenediaminetetraacetic acid (EDTA) is presented. By using zeta potential measurement and a careful analysis of manganese species present in water for dosages in which manganese hydroxide …

Flotation of Iron Oxides and Quartz—A Review: Mineral ...

Jun 10, 2010· Froth flotation of iron oxides and quartz is reviewed over the broad range of particle sizes. The review, which embraces laboratory-, pilot plant- and industrial operations, encompasses (i) surface chemistry of iron oxides and quartz flotation (ii) relevant collectors and their adsorption mechanism and (iii) activation/depression in selective flotation, in this system.

Hematite Collector In Flotation - krishnaferro.co.in

A study of flotation characteristics of monazite, hematite, and quartz using anionic collectors . occurred at pH 7, beyond which monazite floatability decreased. Hematite flotation recoveries were higher than that of monazite at pH 3, 5, and 11. . Effect of collector dosage. The flotation recovery of monazite, hematite, and quartz as a . Chat Now

(PDF) Effect of temperature on the kinetics of froth ...

Effect of temperature on the kinetics of froth flotation. Minerals Engineering, 1994. I. Nishkov. Lidia Alexandrova. D. Lazarov. I. Nishkov. Lidia Alexandrova. D. Lazarov. Download with Google Download with Facebook ... Effect of temperature on the kinetics of froth flotation ...

INFLUENCE OF SYNERGISTIC EFFECT BETWEEN …

Influence of synergistic effect between dodecylamine and sodium oleate ... feldspar-quartz and muscovite-quartz flotation systems (Wang et al., 2014). In their research, limited mixing ratios and concentration levels were used to investigate the synergistic behavior of the DDA-oleate mixtures. As well known, the critical micelle

Effects of the calcite on quartz ... - ScienceDirect

The roles of calcite slimes on the quartz flotation using corn starch as the depressant and dodecylamine (DDA) as the collector were studied though micro-flotation tests, zeta potential measurements and DLVO theory calculations. The micro-flotation results showed that calcite significantly affected the quartz flotation.

Effects of Cations/Anions in Recycled Tailing Water on ...

Effects of Cations/Anions in Recycled Tailing Water on Cationic Reverse Flotation of Iron Oxides Min Tang and Shuming Wen * State Key Lab of Complex Nonferrous Metal Resources Clean Utilization, Faculty of Land and Resource Engineering, Kunming University of Science and Technology, Kunming 650093, China; [email protected]

Cationic flotation of nonsulfide minerals | SpringerLink

Abstract. From the analysis of information on flotation of quartz, barite, hematite and diamond spar using cationic reagents (amines), the authors show deficiency of thermodynamic approach to explain flotation results by one type of adsorption due to ion–electrostatic mechanism.

(CAS OpenIR): Effect of Mn …

Mn iron, dissolved from the surface of ore, will determine the interfacial properties of the particles and, thus, their flotation behavior. In this work, the effect of Mn2+ on quartz flotation was investigated through flotation tests. It was found that quartz can be depressed with Mn2+ and floated with dodecylamine in the pH region 7-8.

(PDF) Selective Flotation of Quartz and Feldspar Using Non ...

Effect of process variables in feldspar flotation using surfactant was a good selective collector for quartz with recovery non-hydrofluoric acid system, Mining Engineering, 33(II):1616-1622. being influenced by pH and surfactant concentration.

Effect of Mn (II) on quartz flotation using dodecylamine ...

Download Citation on ResearchGate | Effect of Mn (II) on quartz flotation using dodecylamine as collector | Quartz is, in most cases, the major gangue mineral found in the manganese ore. Mn iron ...

Open Repository of National Natural Science Foundation of ...

Effect of biological pretreatment on flotation recovery of pyrolusite: Yang Zhichao; Feng Yali; Li Haoran; Wang Weida; Teng Qing: 2014: Effect of Mn (II) on quartz flotation using dodecylamine as collector. Yang Zhichao; Feng Yali; Li Haoran; Wang Weida; Zhang Xu: 2013

STUDIES ON THE STABILITY OF THIN FILMS IN …

Figure 4.16 Top: Effect of pH on the zeta potentials of air bubbles and silica particles treated with 1x10-5 M. DAH. Bottom: Effect of pH on the flotation recovery of quartz using 1x10-5 M. DAH ..... 117 Figure 4.17 Isotherms of the electrostatic component (VE) of the interaction energy for silica plates

Zhi-chao Yang's research works | University of Science and ...

Zhi-chao Yang's 3 research works with 30 citations and 80 reads, including: Effect of Mn (II) on quartz flotation using dodecylamine as collector For full functionality of ResearchGate it is ...

of Quartz by - Columbia University

flotation decrease is also affected by polymer additions to the system. Polyacrylamide and Dodecylamine The effect of addition of polyacrylamide (PAM), a nonionic polymer, on quartz flotation at pH 6.5 using amine is illustrated in Figure 2. At 3.6xlO-S k rnol/m3 amine, PAM, which does ~ .~.~

New trends in flotation reagent development for fine ...

MAIN EFFECTS DETECTED USING REAGENT MIXTURE ... Dodecylamine-octanol mixture provides a more uniform and compact ... SUMMARY . Although there are numerous qualitative studies on the benefit of using a collector mixture on flotation performance, direct observation and clear evidence for the co-adsorption of collectors at the mineral surface are ...

Open Repository of National Natural Science Foundation of ...

See the National Natural Science Foundation of China's policy on open access.

Mechanisms of Dodecylamine Flotation of Quartz: Mineral ...

Primary monoamines have been long used and studied as flotation collectors for quartz. In the past several mechanisms have been proposed to explain the manner in which the amines adsorb onto and render the mineral hydrophobic and, thus, floatable. From past data and proposed mechanisms and reinterpreting some of the past data it appears that somewhat different mechanisms account for amine ...

Diamine flotation of quartz - ScienceDirect

The alkyl chains of the diamines were 8, 12 and 16 carbons in length. Two collector concentrations were used and flotation studied in the absence of additives and in the presence of NaCl. The chain length effect on flotation using the diamines is comparable to that observed in quartz flotation using …

Amine Flotation Systems - 911metallurgist.com

Table of ContentsSurface Forces MeasurementsFlotation ExperimentsResultsFlotation Result Using a Mark IV surface force apparatus, adsorption of dodecylamine hydrochloride on mica has been studied at pH 5.7 in the presence and absence of octanol. With amine alone, the repulsive forces between mica surfaces are reduced due to charge neutralization and attractive hydrophobic force; however, the ...

Coal flotation using wash oil as a new type of collector_

Coal flotation using wash oil as a new type of collector,: ... in hematite flotation using dodecylamine hydrochloride as a collector ... flotation using dodecylamine as collector_. Effect of Mn(II) on quartz flotation using dodecylamine as collector___。J.Cent.South Univ.(2014 ...

Investigating the effects of particle size and dosage of ...

to their relatively high solubility [2, 15-16]. The flotation of quartz has been also studied as a function of pH using N-alkyl-1, 3 diaminopropanes and n-dodecylamine as collectors [17]. Some authors studied the effect of alkalinity on the floatability of quartz with an

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Mn iron, dissolved from the surface of ore, will determine the interfacial properties of the particles and, thus, their flotation behavior. In this work, the effect of Mn2+ on quartz flotation was investigated through flotation tests. It was found that quartz can be depressed with Mn2+ and floated with dodecylamine in the pH region 7-8.

THE FLOTATION RESPONSE OF QUARTZ USING ... - Search …

amine (EDA), alkoxy-propylamine (AP), and dodecylamine (DDA). The flotation recovery of quartz is studied through bench-scale flotation experiments and the flotation recoveries of quartz using CNCs and commercial collectors are compared and discussed. Also the influence of the prevalent pH value on the recovery of quartz is investigated.

Effect of Mn (II) on quartz flotation using dodecylamine ...

Sep 06, 2014· Read "Effect of Mn (II) on quartz flotation using dodecylamine as collector, Journal of Central South University of Technology" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

Effect of Mn(II) on quartz flotation using dodecylamine as ...

Effect of Mn(II) on quartz flotation using dodecylamine as collector___ 25|. Effect of Mn(II) on quartz flotation using dodecylamine as collector___ …

Effect of Mn (II) on quartz flotation using dodecylamine ...

dodecylamine can be used as collector in quartz flotation from rhodochrosite, the process is not selective enough in practice. However, few literature was focused on the effect of Mn2+ on quartz flotation. The objective of this work is to investigate the effect of Mn2+ on quartz flotation and the effect of Mn2+ in presence of modifier.

quartz flotation hematite - allstartheatre.co.za

Effect of EDTA on quartz and hematite flotation with ... Abstract. In this paper, a detailed study of the influence of Mn 2+ ions on quartz and hematite flotation (at pH 10.5 with starch/amine as depressor/collector) in the absence and presence of ethylenediaminetetraacetic acid (EDTA) is …

Flotation and Purification Research on Low Grade Magnesite ...

Low grade magnesite coexisting with dolomite was purified by flotation. A process of reverse flotation to remove silicate minerals- positive flotation to concentrate magnesite was explored after the systematic process mineralogical investigation. Influence of different conditions such as grinding fineness experiment, collector experiment and combined modifiers experiment was also investigated.

DIAMINE FLOTATION OF QUARTZ__

The addition of 0.6 k m o l / m a NaCI strongly depresses the flotation of quartz when 1 x 10 -5 kmol/m 3 amine is present. Increasing the amine concentration to 1 x 10 -4 kmol/m 3 when 0.6 k m o l / m 3 NaCI is present generally reduces the depression. The reduction is greatest in the case of flotation using …

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