·Selective reverse cationic flotation of hematite from quartz was further examined using the mineral mixtures in the presence of ether amine as a cationic collector in alkaline condition pH Contact angle measurements in different collector concentrations were done to determine the wettability of minerals in the TA absence and
·More importantly at a same concentration the depressing effect of starch on hematite flotation was more pronounced in MS form than in CS form For instance at a concentration of 30 mg/L the hematite recovery deceased from % to % when CS was replaced by MS Overall the micro flotation results demonstrated that ultrasonic
·Based on the negative effects caused by siderite in the reverse flotation of hematite different molecular arrangement and adsorption behaviors of flotation reagents on siderite hematite and quartz were investigated by molecular simulations in order that the mechanism of depressant activator and collector would be clearly understood and the
·the hematite surface thereby hindering the adsorption of sodium oleate which was the main reason for the inhibiting effects of carbonate minerals on hematite flotation Keywords hematite; carbonate minerals; solution chemistry; sodium oleate; flotation 1 Introduction The flotation process which is based on the differences
·To explore the flotation separation process of hematite and quartz as well as to verify the results predicted by CCM a small scale XFGC flotation machine was used for the flotation tests of mixed minerals at room temperature In the flotation tests 36 mL of ultrapure water and 2 g of sample were added to the flotation cell and stirred for 3
·The hematite flotation results as a function of pH using Kitacid 261 Fig 6 show similar characteristics to those reported for comparable additions of Kitolene 011 shown in Fig 4 The lower flotation recoveries across the pH range corresponding to the lowest addition rate would be due to the lower amount of available surfactant and the
·The effect of particle size on flotation performance of hematite and quartz was investigated Microflotation X ray photoelectron spectroscopy analysis reagent adsorption measurements and
·The effect of dolomite with different particle size fractions on hematite flotation was studied using sodium oleate as collector at pH of about 9 The effect mechanism of dolomite on hematite flotation was investigated by means of solution chemistry ultraviolet spectrophotometry UV inductively coupled plasma atomic
·The cation reverse flotation is a widely used method in improving the grade of iron ore concentrate but hematite depressant is the key In this work the flotation behavior of hematite and quartz using the complex of Fe III and xanthan gum Fe III XG as depressant was investigated via micro flotation tests
·The technology for beneficiation of banded iron ores containing low iron value is a challenging task due to increasing demand of quality iron ore in India A flotation process has been developed to treat one such ore namely banded hematite quartzite BHQ containing % Fe and % SiO 2 by using oleic acid methyl isobutyl carbinol
·In the present study the use of a biosurfactant obtained from Rhodococcus opacus bacteria for the flotation of hematite from iron ore tailings was evaluated The microflotation assessments were conducted in a modified Partridge Smith cell and the batch flotation studies were conducted in a mechanical cell CDC cell In addition the
·In this study the flotation kinetics and entrainment in quartz and hematite single mineral flotation systems as a function of the solid concentration and particle size were investigated using
·The maximum flotation recovery of monazite 91% occurred at pH 7 beyond which monazite floatability decreased Hematite flotation recoveries were higher than that of monazite at pH 3 5 and 11 However it can also be observed that the collecting ability of AH on quartz mineral was poor with quartz recovery decreasing with increase in
·In this study reverse flotation experiments statistically designed using Box Behnken method were carried out with a mechanical flotation cell integrated with nanobubbles and the results were analyzed according to response surface methodology to evaluate the effects and interactions of three independent critical process parameters
·This study has developed an efficient low temperature resistant quartz collector named KDB The effect of KDB and the conventional collector sodium oleate NaOL on the reverse flotation behavior of hematite was investigated by flotation tests on pure minerals and binary mixed ores On this basis adsorption thermodynamics surface
·Hematite and quartz samples obtained from mines of Odisha India assaying 68% Fe Total and % SiO 2 respectively were used in the flotation studies The samples were prepared by stage crushing and grinding in a stainless ball mill at 60% solids concentration in distilled water
DOI / Corpus ID 108249613; AFM and DFT study of depression of hematite in oleate starch hematite flotation system article{Li2019AFMAD title={AFM and DFT study of depression of hematite in oleate starch hematite flotation system} author={Lixia Li and Chen Zhang and Zhi tao Yuan and Xinyang Xu and
·The experimental results indicate that the flotation performance of hematite was significantly enhanced after corrosion at pH = 1 far exceeding that of the untreated ore while after corrosion at pH = 5 in a weak acid environment the flotation performance of hematite was inhibited even lower than that of the untreated ore [21] This suggests
·However starch could depress the flotation of hematite Flotation recovery of % for quartz could be achieved when N23 concentration was mg/L and starch concentration was mg/L at
·The behavior of curdlan on quartz hematite reverse flotation separation was researched by micro flotation tests And its depression mechanism on the hematite was researched with zeta potential measurements turbidity measurements FT IR and XPS analyses It can be seen from the results of micro flotation tests that curdlan could reduce
·There was an instance where the maximum hematite flotation using × 10 −5 molar sodium oleate occurred at pH 4 but under a 45 min conditioning time Laskowski and Nyamekye 1994 Previous work by the author also recorded a hematite flotation maximum at pH 5 for an oleate addition of 2 × 10 −5 molar Quast 2012b This
·Wang et al used carboxymethyl chitosan CMCS to inhibit hematite reverse flotation quartz The micro flotation test shows that CMCS can completely inhibit hematite while quartz is hardly affected Wang et al 2021 Turrer et al studied the effect of corn starch lignosulfonate carboxymethyl cellulose CMC guar gum and other inhibitors
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