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Articles de revues sur le sujet « Flotation »

Auteur : Grafiati

Publié le 4 juin 2021

Mis à jour le 25 juillet 2025

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1

Liu, Shuang, Lang Yang, Hao Yi, and Shaoxian Song. "Simultaneous Recovery of Niobium and Sulfur from Carbonate Niobite Ore with Flotation." Minerals 12, no. 4 (2022): 432. http://dx.doi.org/10.3390/min12040432.

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Exploring new ways to acquire niobium resources is essential to resolve niobium supply risks, due to the fact that, at present, 99% of niobium is controlled by only two countries. In the present work, a flotation technique was applied to separate niobium from low-grade niobite ore. To maximize the utilization of the original ore resources, pre-flotation was conducted to recover sulfur and eliminate the adverse effects of sulfide on niobite flotation. The obtained sulfur grade and recovery were 33.74% and 92.04%, respectively, and its concentration ratio was 40x. As for the niobite flotation, a

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2

Alekseev, E. V. "The Formation of a Dispersed Gas System in the Flotation Cells." E3S Web of Conferences 126 (2019): 00069. http://dx.doi.org/10.1051/e3sconf/201912600069.

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The use of flotation methods for wastewater treatment is due to their advantages in comparison with other methods of gravity separation, for example, sedimentation. The advantages of flotation water treatment methods include the high speed of the separation process, the ability to extract impurities that are close in density to water, environmental friendliness. Flotation methods are based on adsorptive bubble separation processes. Accordingly, the performance of a particular flotator directly depends on the conditions for the implementation of these processes in a particular flotation cell. T

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3

Lee, Sugyeong, Charlotte E. Gibson, and Ahmad Ghahreman. "The Separation of Carbonaceous Matter from Refractory Gold Ore Using Multi-Stage Flotation: A Case Study." Minerals 11, no. 12 (2021): 1430. http://dx.doi.org/10.3390/min11121430.

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As a pre-treatment method of refractory gold ore, carbonaceous matter (C-matter) flotation was investigated with multi-stage flotation by rougher, scavenger, and cleaner stages. Different dosages of kerosene and MIBC (4-Methyl-2-pentanol) were applied and the optimum dosage was selected by testing in each flotation stage. With the combination of each stage, four circuit designs were suggested, which were a single-stage rougher flotation (R), rougher-scavenger flotation (R+S), rougher-scavenger-scavenger cleaner flotation (R+S+SC), and rougher-rougher cleaner-scavenger-scavenger cleaner flotati

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Rybarczyk, Piotr, and Bożenna Kawalec-Pietrenko. "Simultaneous Removal of Al, Cu and Zn Ions from Aqueous Solutions Using Ion and Precipitate Flotation Methods." Processes 9, no. 2 (2021): 301. http://dx.doi.org/10.3390/pr9020301.

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This paper presents the results of investigations concerning the simultaneous removal of Al(III), Cu(II), and Zn(II) from dilute aqueous solutions using ion and precipitate flotation methods. The effects of initial solution pH, surface active substance concentration, and the gas velocity on the flotations’ efficiency and course are studied. Experimental results are discussed in terms of physicochemical aspects related to aqueous solutions of metal salts. The results indicate that satisfying simultaneous flotations of aluminum, copper and zinc species are observed if the pH value ranges between

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Obradović, Ljubiša, Sandra Milutinović, Srđana Magdalinović, and Sanja Petrović. "Auscultation of the RTH flotation tailing dump in Bor with reference to the stability of dams and dykes at the tailing dump." Mining and Metallurgy Engineering Bor, no. 2 (2022): 59–66. http://dx.doi.org/10.5937/mmeb2202059o.

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The RTH flotation tailing dump, located in the old open pit RTH in Bor about 500 m southeast of the Flotation Plant, has been in continuous operational work since 1985. The flotations tailing dumps are important mining facilities that are constantly changed during their exploitation period. Due to the changes occurring in the tailing dump during its exploitation, it is necessary to perform a continuous technical and technological surveillance-auscultation in order to collect parameters in real time to predict the phenomena, which will enable the normal exploitation of tailing dump. This paper

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Yang, Wei, Gang Wang, Qian Wang, Ping Dong, Huan Cao, and Kai Zhang. "Comprehensive Recovery Technology for Te, Au, and Ag from a Telluride-Type Refractory Gold Mine." Minerals 9, no. 10 (2019): 597. http://dx.doi.org/10.3390/min9100597.

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While extracting gold and silver from telluride-type gold deposits, it is beneficial to develop a comprehensive recovery technology for tellurium. In this paper, we report process mineralogy based on the backward processing technology and the low comprehensive utilization rate of typical telluride-type gold deposits in Xiaoqinling, China. The findings show that tellurium, gold, and silver are the most valuable elements in the ore fissures and gangue minerals and are encapsulated in metallic sulfur ore in the form of altaite, hessite, calaverite, antamokite and natural gold. The flotation metho

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Farai, Katsande, Phiri, and S. Nyambara Mufaro. "Optimizing froth flotation techniques for sustainable beneficiation of spodumene and lepidolite in Zimbabwe: Enhancing lithium recovery for battery-grade material production." i-manager's Journal on Material Science 12, no. 3 (2024): 31. https://doi.org/10.26634/jms.12.3.21739.

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Zimbabwe hosts Africa's largest hard-rock lithium reserves, presenting a significant opportunity for local battery-grade lithium production. This study focuses on optimizing froth flotation for sustainable beneficiation of spodumene and lepidolite, primarily from the Bikita lithium deposit. Experimental results confirmed froth flotation as a highly effective method, achieving Li₂O concentrate grades up to 5.8% from ores initially averaging 1–3.2% Li₂O. Anionic collectors such as oleic acid and sodium oleate were evaluated, with oleic acid proving more effective for spodumene and sodium oleate

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8

Guo, Yuwu, Guohua Gu, Yisheng Zhang, Qingke Li, Su Liao, and Yanhong Wang. "Utilization of Flotation Wastewater for Separation of Chalcopyrite and Molybdenite by Selective Surface Passivation." Minerals 14, no. 4 (2024): 388. http://dx.doi.org/10.3390/min14040388.

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In the flotation separation process of a Cu-Mo-W polymetallic ore, the wastewater from the scheelite cleaning flowsheet contains large numbers of residual flocculants and metal ions, and the separation of chalcopyrite and molybdenite requires a large number of environmentally harmful depressants. Therefore, it is necessary to find new methods to reduce the environmental and cost pressures of wastewater treatment and the use of depressants. In this work, the flotation wastewater from the scheelite cleaning flowsheet for the separation of chalcopyrite and molybdenite by selective surface passiva

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9

Luo, Yong Qiang, Rui Chen Ren, and Cai Xia Li. "Research on the Application of Mo-Ni Ore Pre-Discarding Tailings by Small-Diameter Hydrocyclone." Advanced Materials Research 619 (December 2012): 151–55. http://dx.doi.org/10.4028/www.scientific.net/amr.619.151.

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For the Mo-Ni ore that mineral composition is complex, and the grade is relatively low, the flotation’s effect is not good in advance for enrichment, because of the influence of fine grained level gangue minerals. The small diameter hydrocyclone were used to pre-discard tailings, with the best pulp density and feed pressure, the rate of throwing is the 30%, and then the flotation obtained a good beneficiation index. The crude ore that contains Mo 2.04 %, Ni 1.87 %, through the closed-circuit test won a concentrate that the grade of Mo is 8.94 % and the recovery is 91.86 %, the grade of Ni is 6

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Ignatkina, V. A., V. A. Bocharov, A. R. Makavetskas, et al. "RATIONAL PROCESSING OF REFRACTORY COPPER-BEARING ORES." Izvestiya Vuzov Tsvetnaya Metallurgiya (Proceedings of Higher Schools Nonferrous Metallurgy, no. 3 (June 14, 2018): 6–18. http://dx.doi.org/10.17073/0021-3438-2018-3-6-18.

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The paper presents the results obtained when studying material compositions of four samples of refractory copper-bearing ores from the Uzelga deposit along with technological solutions to improve their processing parameters. The refractoriness of ores is associated with a thin dissemination (up to a micron size) and close intergrowth of ore and rock minerals. Ferrous sulfides are represented by a wide range of minerals: pyrite, marcasite and their variety melnikovite, arsenic pyrite and arsenopyrite; sooty melnikovite has a higher flotation activity. The reduction of iron sulfides from 89 to 2

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11

Van Tuan, Le. "Cyclone microbubble flotation for enhanced oil recovery from palm oil mill effluent." Hue University Journal of Science: Natural Science 134, no. 1B (2025): 35–43. https://doi.org/10.26459/hueunijns.v134i1b.7763.

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In this study, we investigate cyclone microbubble (CMB) flotation for oil recovery from palm oil mill effluent (POME) under batch and continuous operations. Designed to reduce floated waste and enhance oil separation, the process was tested on a real POME from a Malaysian palm oil mill, with high temperature, low pH, and fluctuating oil and grease (O&G), total solids (TS), and chemical oxygen demand (COD) levels. For a mill processing 1,000 tons of fresh fruit bunches (FFB) daily, the POME discharge contained 7.9 tons of O&G, 36.5 tons of TS, and 59.2 tons of COD. Batch flotation achie

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12

Wei, Zhao, Junhao Fu, Haisheng Han, et al. "A Highly Selective Reagent Scheme for Scheelite Flotation: Polyaspartic Acid and Pb–BHA Complexes." Minerals 10, no. 6 (2020): 561. http://dx.doi.org/10.3390/min10060561.

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Previous studies have proved that the lead complexes of benzohydroxamic acid (Pb–BHA) are effective collectors of scheelite flotations; however, the separation of scheelite from calcite needs depressants with high selectivity. In this study, we reported a novel depressant for calcite minerals, and Pb–BHA served as the collector of scheelite. The flotation behavior of polyaspartic acid (PASP) in a scheelite and calcite flotation that uses Pb–BHA was determined via flotation experiments. Furthermore, the selective adsorption of PASP on the mineral surfaces and the effect of PASP on the adsorptio

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13

Zhao, Chen, Chuanyao Sun, Yangge Zhu, Yimin Zhu, and Wanzhong Yin. "Study of the Mechanism of the Fe-BHA Chelates in Scheelite Flotation." Minerals 12, no. 4 (2022): 484. http://dx.doi.org/10.3390/min12040484.

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Scheelite associated with calcium-containing minerals such as calcite and fluorite is difficult to separate by flotation because of the Ca ions contained in the mineral lattices, which cause scheelite to have similar surface properties and floatability to gangue minerals. Traditional collectors such as oleic acid need to add a large amount of sodium silicate as gangue inhibitors, which causes difficulties for the settlement of tailings. In addition, the use of benzohydroxamic acid (BHA), which needs the addition of Pb(NO3)2 as the scheelite activator, can also cause environmental pollution. In

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14

Cao, Qin Bo, Shu Ming Wen, Chen Xiu Li, Shao Jun Bai, and Dan Liu. "Application of New Flotation Machine on Phosphate Flotation." Advanced Materials Research 616-618 (December 2012): 624–27. http://dx.doi.org/10.4028/www.scientific.net/amr.616-618.624.

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Phosphate is a typical oxide ore characterizing that generating abundant froth during flotation. In this research a new flotation machine was employed in the flotation of phosphate. Comparing to regular flotation machine, in the reverse flotation of dolomite the recovery and grade of MgO has no significance improvement. While, in the case of reverse flotation of silicon dioxide, the new flotation machine has significance advantage. In 5 minutes of flotation time, the yield of froth is 20.66% with new machine, which equals to yield using regular machine under 8 minutes. The flotation time has b

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15

Fan, Guixia, Liguang Wang, Yijun Cao, and Chao Li. "Collecting Agent–Mineral Interactions in the Reverse Flotation of Iron Ore: A Brief Review." Minerals 10, no. 8 (2020): 681. http://dx.doi.org/10.3390/min10080681.

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Froth flotation has been widely used in upgrading iron ores. Iron ore flotation can be performed in two technical routes: direct flotation of iron oxides and reverse flotation of gangue minerals with depression of iron oxides. Nowadays, reverse flotation is the most commonly used route in iron ore flotation. This review is focused on the reverse flotation of iron ores, consisting of reverse cationic flotation and reverse anionic flotation. It covers different types of collecting agents used in reverse iron ore flotation, the surface characteristics of minerals commonly present in iron ores (e.

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16

Lazić, Predrag, Đurica Nikšić, and Dejan Stojanović. "Replacement of old flotation cells in the flotation plant of the Lece mine." Tehnika 76, no. 1 (2021): 27–31. http://dx.doi.org/10.5937/tehnika2101027l.

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Russian made FPM-GMO-1.6 flotation machines were previously installed for primary stage flotation concentration of lead and zinc minerals in Lece flotation plant. For cleaning stage FMR-10 flotation machines were in use. Beside low technological characteristic, hard maintenance and worn out are characteristic of this machines. In order to modernize the production and eliminate the above shortcomings primarily in the process of lead minerals flotation, in 2020, the old flotation cells were replaced with new ones. Currently, 8 new RCS-5 cells for coarse and scavengel flotation of lead minerals a

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17

Stanojlović, Rodoljub D., and Jovica M. Sokolović. "A Study of the Optimal Model of the Flotation Kinetics of Copper Slag from Copper Mine BOR." Archives of Mining Sciences 59, no. 3 (2014): 821–34. http://dx.doi.org/10.2478/amsc-2014-0057.

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Abstract In this study the effect of mixtures of copper slag and flotation tailings from copper mine Bor, Serbia on the flotation results of copper recovery and flotation kinetics parameters in a batch flotation cell has been investigated. By simultaneous adding old flotation tailings in the ball mill at the rate of 9%, it is possible to increase copper recovery for about 20%. These results are compared with obtained copper recovery of pure copper slag. The results of batch flotation test were fitted by MatLab software for modeling the first-order flotation kinetics in order to determine kinet

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18

Steiner, Frédéric, Ali Zgheib, Maximilian Hans Fischer, Lukas Büttner, Andreas Schmidt, and Sandra Breitung-Faes. "In Situ Hydrophobization of Lithium Aluminate Particles for Flotations by Dry Grinding in the Presence of Punicines." Minerals 14, no. 7 (2024): 650. http://dx.doi.org/10.3390/min14070650.

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The engineered artificial mineral (EnAM) lithium aluminate (LiAlO2) is a promising candidate for the recycling of lithium from slags, which can originate from the reprocessing of batteries, for example. Derivatives of the natural product Punicine (1-(2′,5′-dihydroxyphenyl)-pyridinium) from Punica granatum have been proven to be effective switchable collectors for the flotation of this mineral as they react to light. In the present study, three Punicines were added to a planetary ball mill before grinding LiAlO2 to particle sizes suitable for flotation. We investigated the influence of Punicine

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Kazemi, Fatemeh, Ataallah Bahrami, Yousef Ghorbani, et al. "THE INTERACTION AND SYNERGIC EFFECT OF PARTICLE SIZE ON FLOTATION EFFICIENCY: A COMPARISON STUDY OF RECOVERY BY SIZE, AND BY LIBERATION BETWEEN LAB AND INDUSTRIAL SCALE DATA." Rudarsko-geološko-naftni zbornik 38, no. 1 (2023): 1–12. http://dx.doi.org/10.17794/rgn.2023.1.1.

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The interaction and synergic effect of particle size on flotation efficiency were investigated by a comparison study between laboratories (size-by-size flotation modes) and industrial scale operational data (whole mixed size fraction). For this purpose, sampling was done from the feed, concentrate, and tailing of the flotation rougher cells of the Sungun copper processing complex (located in the northwest of Iran). In the size-by-size flotation mode (lab scale), the sample was first subjected to different size fractions, and then flotation tests were performed for each fraction. On an industri

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20

Liu, Chengyong, Wenzhe Gu, Haijun Zhang, et al. "The Adjustment for Entrainment Behavior of Kaolinite in Coal Flotation." Minerals 15, no. 2 (2025): 147. https://doi.org/10.3390/min15020147.

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The entrainment of gangue particles always increases the ash content of coal flotation concentrate. In the present work, the adjustment for entrainment of kaolinite in coal flotation was studied focusing on the parameters including solid concentration and frother dosage. The results indicated that the ash contents of concentrates were always higher in the early or late stage (flotation time: 0–30 s or 120–180 s) than that in the middle stage (flotation time: 30–120 s). This is mainly because of the mechanical entrainment in the early stage and the entrainment caused by water transportation in

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Lu, Ya Lin, Dian Wen Liu, Xiao Dong Jia, Jing Jie Yuan, and De Yang Shi. "A Review on Flotation Process of Scheelite." Advanced Materials Research 962-965 (June 2014): 388–92. http://dx.doi.org/10.4028/www.scientific.net/amr.962-965.388.

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RICARD, MICHELLE, and GILLES DORRIS. "Added soap contact time with recycled pulp improves flotation deinking efficiency and reduces cost." November 2014 13, no. 11 (2014): 27–35. http://dx.doi.org/10.32964/tj13.11.27.

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Optimization of the fatty acid soap addition points increased soap contact time with recycled pulp before flotation. This, in turn, resulted in improved ink removal efficiencies for three of four types of commercial flotation cells. Mill A saved 25% in fatty acid flotation collector dosage while maintaining the same brightness gain and ink removal efficiency. In mill B, increasing the soap contact time improved the aeration of one line of flotation cells, which in turn led to a 1-point brightness improvement of deinked pulp and savings in bleaching chemicals. Both mills showed 30%–54% lower ca

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Morozov, Iurii, Tatiana Intogarova, Olga Valieva, and Iuliia Donets. "Flotation classification in closed-circuit grinding as a way of reducing sulphide ore overgrinding." Izvestiya vysshikh uchebnykh zavedenii. Gornyi zhurnal, no. 1 (February 17, 2021): 85–96. http://dx.doi.org/10.21440/0536-1028-2021-1-85-96.

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Research object and aim. Flotation classification in closed-circuit grinding is a way of improving copper ore flotation indicators by reducing minerals overgrinding. Due to valuable components froth recovery with their uncovering in the process of grinding, loss of copper in flotation tailings with secondary slime are reduced significantly. The research aims to study the possibility to improve the flotation of copper ore based on the use of flotation classification in the closed-circuit grinding. Methodology. In order to solve the problem, laboratory studies on closed-circuit grinding experime

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Zhao, Wen Juan, Dian Wen Liu, Xiao Lin Zhang, Shu Qin Zeng, Guo Yin Xu, and Qi Cheng Feng. "Impact of Pre-Desliming on Flotation of Low-Grade Zinc Oxide Ore from Lanping." Advanced Materials Research 634-638 (January 2013): 3385–89. http://dx.doi.org/10.4028/www.scientific.net/amr.634-638.3385.

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Zinc oxide ore from Lanping contained large amount of fine slime which badly deteriorated flotation performance, and it complexly intergrowed with plenty of alkaline gangues with calcium and magnesium. In order to investigate the impact of pre-desliming on flotation, experiments of direct flotation and pre-desliming flotation were carried out in the work. Finally, a zinc recovery of 88.73% with a Zn grade of 13.93% was obtained in direct flotation test, and a higher zinc recovery of 95.25% with a Zn grade of 13.56% was achieved by pre-desliming flotation. Pre-desliming flotation test was super

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Zhang, Yong, Jing Zhu, and Tan Liu. "The Research of the Flotation Recovery Prediction Methods Based on Advanced LS-SVM." Applied Mechanics and Materials 130-134 (October 2011): 1854–57. http://dx.doi.org/10.4028/www.scientific.net/amm.130-134.1854.

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Flotation recovery is an important index of flotation process, in order to change the existing detection methods of low accuracy , a soft measurement model of flotation recoveries is proposed based on improved weighted LS - SVM. According to the flotation foam characteristics and the corresponding relation of flotation recovery, the fuzzy C-means clustering method is used for flotation characteristics of data processing , the image characteristic values as prediction model input and using genetic algorithm to optimize the parameters of the model. The result show that the modified algorithm can

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Han, Hua, An Liu, and Huaifa Wang. "Effect of Hydrodynamic Cavitation Assistance on Different Stages of Coal Flotation." Minerals 10, no. 3 (2020): 221. http://dx.doi.org/10.3390/min10030221.

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In this study, the effect of hydrodynamic cavitation (HC) on the conditioning stage (HCCS), separation stage (HCSS), and whole stage (HCWS) of coal flotation was investigated by flotation tests, laser granulometry, and contact angle measurements. The flotation results indicate that compared to conventional flotation, all HC-assisted flotation methods can improve concentrate combustible recovery and flotation constant rate. HCCS and HCSS show similar levels of improvement, while HCWS has a better flotation efficiency. The screening tests demonstrate that HC has the advantage of being able to li

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Topychkanova, Ekaterina I., Natalia A. Dementieva, Vladimir M. Mullov, and Andrey Yu Chikin. "Optimization of Low-Grade Refractory Gold Ore Processing." Transbaikal State University Journal 30, no. 3 (2024): 89–100. http://dx.doi.org/10.21209/2227-9245-2024-30-3-89-100.

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The processing of refractory gold ores is a challenging task. Refractory ores include ores that cannot be easily processed due to the fine dissemination of gold in sulphide minerals and the presence of preg-robbing carbonaceous matter. Two processes have been studied: flotation of low-grade double refractory gold ore using new carbon depression reagents; gravity – cleaner flotation of rougher flotation concentrate followed by pressure oxidation and the CIL treatment of POX cakes. The study is aimed to optimize the processing of low-grade (Au 0.6 g/t) refractory gold ore and achieve high proce

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Hu, Xinnan, Zheng Tong, Jie Sha, et al. "Effects of Flotation Reagents on Flotation Kinetics of Aphanitic (Microcrystalline) Graphite." Separations 9, no. 12 (2022): 416. http://dx.doi.org/10.3390/separations9120416.

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The flotation method is widely used for the preliminary beneficiation of aphanitic (microcrystalline) graphite. However, there is limited literature regarding the effects of flotation reagents on the flotation kinetics of aphanitic graphite. In this study, six commonly used flotation kinetic models were used to fit the flotation experimental data of aphanitic graphite. The classical first-order model was found to be most suitable for describing flotation kinetics of aphanitic graphite. The modified flotation rate constant (Km) was then applied to evaluate the effects of collector, frother, and

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Matveyeva, T. N., L. B. Lantsova, and O. I. Gladysheva. "Effect of ore dressing on flotation of copper and arsenic minerals in sulphide ore processing." Mining Industry Journal (Gornay Promishlennost), no. 6/2021 (January 15, 2022): 48–50. http://dx.doi.org/10.30686/1609-9192-2021-6-48-50.

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Monomineral flotation results showed that the use of a new reagent S-cyanoethyl N, N-diethyldithiocarbamate enhances the flotation activity of chalcopyrite, in contrast to flotation with butyl xanthate, and reduced the flotation ability of arsenopyrite, which makes this reagent promising for its use in the selective flotation of complex sulfide ores.

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Li, Li Xia, Wan Zhong Yin, Dan Feng, and Bin Zhang. "Effect of Siderite on Reverse Flotation of Dong Anshan Iron Ore Containing Carbonates." Advanced Materials Research 455-456 (January 2012): 91–96. http://dx.doi.org/10.4028/www.scientific.net/amr.455-456.91.

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The content of carbonate minerals in Dong Anshan iron ore was increasing in recent years, which deteriorated reverse flotation indices or even resulted in unclear separation between concentrate and tailing. In dodecylamine and sodium oleate systems, reverse flotation tests were undertaken with artificial mixed minerals of martite, quartz and siderite. Based on mineral flotation tests, the effect mechanism of siderite on reverse flotation were investigated in terms of SEM and EDS. Results showed that siderite was weakly depressed by starch, and the adsorption of siderite on hematite and quartz

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Liao and Ou. "Flocs Properties and Flotation Performance of Fine Diaspore with Energy Input Pretreatment Induced Using Sodium Oleate." Minerals 9, no. 7 (2019): 433. http://dx.doi.org/10.3390/min9070433.

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Energy input, an important factor affecting flocs properties and flotation performance, has rarely been studied in the field of diaspore flotation, which has severely limited our understanding of the flocculation flotation of fine diaspore. Therefore, in this study, the flocs properties and flotation performance of fine diaspore with energy input pretreatment were studied through flotation kinetics, flocs size measurements, and fractal dimension analysis. The results showed that the flocs size increased and the flocs structure became looser with the increasing energy input, while the flocs siz

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Lu, Ying, Weiping Liu, Xuming Wang, Huaigang Cheng, Fangqin Cheng, and Jan D. Miller. "Lauryl Phosphate Flotation Chemistry in Barite Flotation." Minerals 10, no. 3 (2020): 280. http://dx.doi.org/10.3390/min10030280.

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Barite has numerous applications including barium mud for oil well drilling, manufacture of elemental barium, filler for paper and rubber industries, and contrast material for X-ray radiology for the digestive system. Currently, froth flotation is the main method for the beneficiation of barite using fatty acid as a typical collector. In this research, it was found that lauryl phosphate is also a promising collector for barite flotation. Results from microflotation, contact angle, and zeta potential indicate that lauryl phosphate is adsorbed on the barite surface and thus achieves superior flo

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Wei, Lim Mee, Lau Ee Von, and Poh Phaik Eong. "Optimization of Nanobubble-Assisted Bunker Oil Flotation from Oil-Wet Sand via Response Surface Methodology (RSM)." ASEAN Journal of Chemical Engineering 15, no. 1 (2015): 1. http://dx.doi.org/10.22146/ajche.49688.

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Flotation technology is an effective method for the separation of oil from sand via gas-liquid-solid system. The mechanism of flotation lies in the generation of gas bubble that attaches itself to the hydrophobic particles. Therefore, one of the main parameters which could affect the efficiency of flotation is the bubble size distribution. This research aims to investigate the efficiency of nanobubbles (NBs) in the flotation process to remove high density bunker oil from oil/sand slurry in a laboratory-scale flotation cell. Experiments were carried out using NBs (approximate diameter of 200 nm

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Yin, Wan Zhong, Li Rong Zhang, and Ya Zhuo Ding. "Research on Potential Control Flotation of Molybdenite." Advanced Materials Research 58 (October 2008): 147–53. http://dx.doi.org/10.4028/www.scientific.net/amr.58.147.

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In this paper, potential control flotation of molybdenite has been investigated which focus on the effect of pulp potential on flotation performance. Optimum flotation conditions of molybdenite are determined through tests: optimum pulp potential is 190mv~300mv, dosage of sodium sulfide is 6kg/t.The potential control flotation does not use sodium silicate which solved the problem of tailing settlement difficulties. The mechanism of potential control flotation shows that S0 is the main factor that achieves potential control flotation of molybdenite.

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Wang, Wei Zhi, Miao Miao Han, and Chun Guang Yang. "Applied Research of Cyclonic-Static Micro-Bubble Flotation Column on the Microfine Hematite Flotation." Advanced Materials Research 641-642 (January 2013): 242–45. http://dx.doi.org/10.4028/www.scientific.net/amr.641-642.242.

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According to the situation of high grade of flotation tailings in flotation process of SiJiYing Iron Mine, static-swirl micro-bubble flotation column was used in micro-fine hematite flotation tests. Tests on operation condition, reagent condition and flotation flowsheet were done. Compared with the flotation machine test, he final result was that concentrate grade was enhanced by 2.42%, recovery increased by 6.58%, and tailings grade was reduced by 2.01%,recovery rate reduced by 3.25%.Ideal beneficiation indexes were obtained.

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Chen, Wen Yi, Yue You Wei, Bing Sun, and Kai Tang. "Effect of Feed Angle on Centrifugal Flotation Cell." Applied Mechanics and Materials 448-453 (October 2013): 3803–7. http://dx.doi.org/10.4028/www.scientific.net/amm.448-453.3803.

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Feed angle have a great effect on the flotation efficiency of self-priming centrifugal flotation cell.In order to improve the efficiency of flotation,the effect of feed angle on the flow field in a self-priming centrifugal flotation cell was investigated using STAR CCM+.The distribution law of velocity,pressure,turbulent kinetic energy under different angles was gotten.The turbulent kinetic energy and the pressure difference increased with the feed angle. Result shows that the feed angle acting on the interior flow field is significant and the feed angle of 20º is more conducive to flotation t

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Wang, Xiao Min, and Ting An Zhang. "Flotation Desulfurization of High-Sulfur Bauxite with Ethyl Thio Carbamate as Collector." Advanced Materials Research 239-242 (May 2011): 1515–19. http://dx.doi.org/10.4028/www.scientific.net/amr.239-242.1515.

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The desulfurization of high-sulfur diasporic bauxite （from China） with flotation process and ethyl thio carbamate as collector was studied, and the effects of flotation time, pulp density, pH value and particle size of ores were examined. The experimental results indicate that the sulfur in bauxite was successfully decreased through flotation. The sulfur content of bauxite was lowed to 0.66% under the condition of pH value 4, the dose of flotation agent ethyl thio carbamate 0.5kg/t, frother 20g/t, flotation time 15 minutes, pulp density 10%, the particle size of ores ≦0.09 mm, and the reclamat

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Nhu, Dung Kim Thi, Son Hoang Nguyen, Chinh Thi Vu, and Duoc Van Tran. "Study on the effects of some parameters on the flotation performance of Vang Danh coal fines -0.3 mm in the reflux flotation cell." Journal of Mining and Earth Sciences 61, no. 2 (2020): 68–75. http://dx.doi.org/10.46326/jmes.2020.61(2).08.

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In the world, the coal fines usually are upgraded in flotation columns (Jameson, Pneufloat, Microcell,...). The reflux flotation cell is a novel type of flotation column that uses a system of inclined channels to enhance bubble - liquid segregation in flotation. Additionally, in this type of device, it is used a special froth washing mechanism with pressurized water to ameliorate the quality of cleaned coals. This type of device has a simple structure, high capacity and allows to receive cleaned coals of high quality. This paper presents the test results of coal fines samples -0,3mm from Vang

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Wang, Lei, and Chao Li. "A Brief Review of Pulp and Froth Rheology in Mineral Flotation." Journal of Chemistry 2020 (February 8, 2020): 1–16. http://dx.doi.org/10.1155/2020/3894542.

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In mineral flotation, rheological problems have limited the efficient upgrading of low-grade and complex ores. Since pulp and froth rheology are deemed to play different roles in influencing the separation performance, in this paper, a brief review on pulp and froth rheology in flotation is provided, with an objective of developing a basic understanding of rheology in flotation. The essential variables that affect the rheology of a flotation pulp and froth are discussed. The methods for measuring pulp and froth rheology are presented. The correlations of pulp and froth rheological properties t

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Zhao, Fangchao, Zhichao Li, Xixi Han, Zhuang Shao, and Zongxue Li. "Optimization of Air Flotation and the Combination of Air Flotation and Membrane Filtration in Microalgae Harvesting." Processes 10, no. 8 (2022): 1594. http://dx.doi.org/10.3390/pr10081594.

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On account of its small size and poor sedimentation performance, microalgae harvesting is restricted from a wider application. Air flotation is an efficient and fast solid–liquid separation technology, which has the potential to overcome the impediments of microalgae harvesting. In this study, factors influencing microalgae harvesting by air flotation were investigated. The results illustrated that bound extracellular organic matter (bEOM) had a greater effect on microalgae harvesting by air flotation, compared with dissolved extracellular organic matter (dEOM). Microalgae harvesting by air fl

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Ulusoy, Ugur, and Hulya Kurşun. "REVIEW: COMPARISON OF ULTRASONICALLY AIDED ZINC BENEFICIATION BY MECHANICAL FLOTATION AND COLUMN FLOTATION CELL." EUREKA: Physics and Engineering, no. 1 (January 29, 2021): 3–13. https://doi.org/10.21303/2461-4262.2021.001608.

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Zinc is a key beneficiary of economic development for the developing countries. While the global zinc mine production in 2019 was recorded as 13 million tons, the value of zinc mined in 2019, based on zinc contained in concentrate, was about $2.1 billion. Sphalerite or zinc blende (ZnS), which is the main source of zinc, provides more than 90 % of zinc productions today. Beneficiation is usually carried out by flotation to produce marketable concentrates (45–55 %Zn). The flotation, which is the most widely used separation process at fine sizes for the concentration of low grade complex Pb-Cu-Z

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Yan, Sen, Jing Qi Zhang, and Wei Zhi Diao. "Flotation Reagent Progress and Application Overview." Applied Mechanics and Materials 441 (December 2013): 76–79. http://dx.doi.org/10.4028/www.scientific.net/amm.441.76.

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Selection and use of Flotation reagent is one of the most important aspects to improve flotation effect. Because of different perspectives, Flotation reagent has different classification methods. According to agents in the flotation of use and combine attributes and dissociative nature into collecting agent, foaming agent, modifier three categories, the paper from the three aspects outlined flotation reagent developments and applications.

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Musuku, Benjamin, Eija Saari, and Olli Dahl. "Oxidative Dissolution of Low-Grade Ni-Cu Ore and Impact on Flotation of Pentlandite." Minerals 12, no. 11 (2022): 1406. http://dx.doi.org/10.3390/min12111406.

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This paper investigated the effect of mineral surface oxidation on the floatability of Kevitsa low-grade Ni-Cu ore. Physicochemical measurements, ethylene diamine tetra acetic acid (EDTA) extraction, and oxygen uptake experiments were carried out with slurry and recycled process water samples obtained from the Kevitsa Cu-Ni sequential concentrator plant. The pH of recycled process water, copper flotation feed, and nickel flotation feed dropped by 0.7, 0.4, and 0.7 points, respectively, from May to July. The oxygen demand increased from recycled process water to the copper flotation feed, then

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Galas, Jacek, and Dariusz Litwin. "Machine Learning Technique for Recognition of Flotation Froth Images in a Nonstable Flotation Process." Minerals 12, no. 8 (2022): 1052. http://dx.doi.org/10.3390/min12081052.

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The paper is focused on the analysis of the relation between the stability of the flotation process and the efficiency of Machine Learning (ML) algorithms based on the flotation froth images. An ML process should enable researchers to construct Artificial Intelligence (AI) algorithms for flotation process control. The image of the flotation froth includes information characterizing the flotation process. The information can be extracted with the aid of the Image Recognition (IR) algorithms based on the ML. This enables construction of a flotation process control system in the mineral processin

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Kyzas, George, and Kostas Matis. "Flotation in Water and Wastewater Treatment." Processes 6, no. 8 (2018): 116. http://dx.doi.org/10.3390/pr6080116.

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Flotation constitutes a separation process that originated from mineral processing. Nowadays, wider applications have been found and compared to flotation for water and wastewater treatment. Stress in the present review paper was mainly applied to heavy metal ions recovery by flotation and the respective mechanism followed, being either ion, precipitate, or sorptive flotation. In the latter case, the use of adsorbents is included (such as powdered activated carbon, zeolites, and goethite), as well as various biosorbents. The flotation of the following metals was reviewed: copper, zinc, nickel,

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Ozturk, Yasemin, Ozlem Bicak, and Zafir Ekmekci. "Effects of Residual Xanthate on Flotation Efficiency of a Cu-Zn Sulfide Ore." Minerals 12, no. 3 (2022): 279. http://dx.doi.org/10.3390/min12030279.

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Reuse of process water in the flotation of sulfide ores has crucial importance for environmental sustainability and improved process economy. However, the chemistry of process water may be a critical subject for the flotation efficiency as the dissolved ion concentration increases with water reuse. In this study, the effects of water reuse on the flotation efficiency of a Cu-Zn sulfide ore were investigated. The flotation flowsheet consists of a pre-flotation section to remove the naturally floatable talc particles, and sequential copper and zinc flotation sections. Calcium, sulfate, thiosulfa

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Zhang, Xiaoou, Huaigang Cheng, Kai Xu, et al. "Ultrasonic Enhancement for Mineral Flotation: Technology, Device, and Engineering Applications." Minerals 14, no. 10 (2024): 986. http://dx.doi.org/10.3390/min14100986.

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In the past five years, the number of articles related to ultrasonic mineral flotation has increased by about 50 per year, and the overall trend is on the rise. The most recent developments in ultrasonics for flotation process intensification are reviewed herein, including effects of ultrasound treatment on an aqueous slurry, improvement in flotation methods and technological processes, device development tracking, and application effects in mineral process engineering. At this point in time, there are pilot-scale flotation tests to evaluate the feasibility of ultrasonic pretreatment technolog

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Zhang, Huan, Mingming Du, Haijie Hu, Hongli Zhang, and Naijian Song. "A Review of Ultrasonic Treatment in Mineral Flotation: Mechanism and Recent Development." Molecules 29, no. 9 (2024): 1984. http://dx.doi.org/10.3390/molecules29091984.

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Ultrasonic treatment has been widely used in the mineral flotation process due to its advantages in terms of operational simplicity, no secondary pollutant formation, and safety. Currently, many studies have reported the effect of ultrasonic treatment on mineral flotation and shown excellent flotation performance. In this review, the ultrasonic mechanisms are classified into three types: the transient cavitation effect, stable cavitation effect, and acoustic radiation force effect. The effect of the main ultrasonic parameters, including ultrasonic power and ultrasonic frequency, on mineral flo

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ILUNGA, SENDELE Cedrick, NTAKAMUTSHI Patrick TSHIBANDA, KALENGA Gigi KASONGO, NTUMBA Jean-Marie KANDA, and WA MUMAPANDA Hugues DIBWE. "Influence of particle size on the batch flotation of Concentrator Tailings with a view to their industrial recovery." Advance Research Journal of Multidisciplinary Discoveries 78, no. 1 (2023): 07–15. https://doi.org/10.5281/zenodo.7590252.

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Retreatment of wastes is of both economic and environmental interest. The valorization of the wastes of the Southern Katanga Mining Company (CMSK) has a definite advantage on the operating cost, the cost of extraction and the cost of grinding which are significantly reduced.          To assess the influence of regrinding in the reprocessing by flotation of CMSK plant wastes, flotation tests were carried out on fractions. The fraction smaller than 75 µm constitutes the original sample (flotation 1), the original sample ground for 10 minutes (flotati

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Zhang, Jun An, Hao Dong, Fang Jie Ma, and Bo Liu. "Performance Analysis of the Flotation Cushion with Elastic Pressure Equalizing Groove for Aerostatic Slideway." Applied Mechanics and Materials 152-154 (January 2012): 743–48. http://dx.doi.org/10.4028/www.scientific.net/amm.152-154.743.

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In order to improve stiffness of the flotation cushion, a new type of flotation cushion with variable-section pressure equalizing groove of elastic plate for aerostatic slideway was designed. Gas film pressure distribution and load carrying capacity of this flotation cushion was studied through theoretical analysis. The grid was generated by taking advantage of overlapping stitching technique. By using the coupling calculation of the gas lubrication governing equation and elastic deformation of thin plate governing equation, the load carrying capacity and stiffness of the new flotation cushion

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