· In practice, flotation separation of the residue is often unsatisfactory because of close and complex intergrowth between sulfur and other minerals in the residue. Such intergrowth occurs because the oxidative pressure leaching reaction of zinc sulfide concentrate particles follows a shrinking-core model ( Pecina et al., 2008 , Xie et al., 2007 ).
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· However, compared to single mineral flotation tests, the separation efficiency in mixed flotation is significantly reduced [9]. This can be attributed to the presence of iron-aluminum ions in the garnet sample which precipitate in the slurry and further form hydroxide compounds that adsorb onto the surface of rutile, thereby affecting
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DOI: 10.1016/j.seppur.2023.124207 Corpus ID: 258972450 Collectorless flotation separation of molybdenite from complex sulfide minerals employing a bi-carbonyl depressant @article{Zhang2023CollectorlessFS, title={Collectorless flotation separation of
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:Flotation as A Separation TechniqueFlotation Process in Mining · Separation effects of sodium polyacrylate (PAAS) and gum Arabic (GA) on flotation of chalcopyrite and magnesium silicate minerals using potassium butyl
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:Marek [email protected] · This review systematically summarizes the fundamentals of mineral flotation based on density functional theory, including mineral crystal chemistry,
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Under the conditions of α-BLA dosage of 40 mg/L and citric acid dosage of 100 mg/L, the effect of pH value on the reverse flotation separation effect of fluorite-barite artificial mixed ore is shown in Fig. 3 (a).At pH = 2, the grade and recovery of BaSO 4 in the concentrate were 32% and 11.45%, respectively, and the grade and recovery of CaF 2 were 58.42%
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· 1. Introduction Froth flotation is a versatile and widely used particle separation process. As the flotation rate constant is a function of particles size, however, at a typical flotation residence time the recovery of particles in different size fractions varies widely, with high
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· The flotation separation of Cu-Fe sulfide minerals at low alkalinity can be achieved using selective depressants. In the flotation system of Cu-Fe sulfide minerals, depressants usually preferentially interact with the pyrite surface to render the mineral surface hydrophilic and hinder the adsorption of the collector. This review summarizes
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· Pyrite is separated from other minerals mainly by flotation. However, the hydrophilicity of pyrite is affected by many factors, causing it to easily enter the concentrate and consequently reduce the quality of concentrate. Highly efficient pyrite depressants can be selectively adsorbed on the surface of pyrite to improve its hydrophilicity, thereby
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· the lack of research on the flotation separation of two minerals with different particle sizes. Therefore, it is essential to further research fine-particle separations of gangue with different particle sizes. In Zhang et al.’s article [], −10 µm rutile and −30 µm
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· Pb–BHA complexes have been shown to be selective for the separation of tungsten and cassiterite minerals from calcium minerals. These minerals could be enriched synchronously to some extent using
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Recent Advances in Flotation Process. A special issue of Minerals (ISSN 2075-163X). This special issue belongs to the section "Mineral Processing and Extractive Metallurgy". Deadline for manuscript submissions: closed (31 July 2023) | Viewed by 27791.
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· In contrast, the other three reagents can depress calcite, but lack selectively, lowering smithsonite flotation and limiting their use in the flotation separation of these minerals [68]. These results demonstrate that biobased reagents may compete with conventional molecules, as they may exhibit comparable performance.
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· Owing to the depletion of wolframite, the focus of tungsten extraction has gradually shifted to scheelite. However, separating the associated minerals (e.g., apatite, fluorite, and calcite) and scheelite is challenging because their surface physicochemical properties are similar to those of scheelite. Fortunately, researchers have made
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· The mechanism of electrochemical interaction between chalcopyrite and hexagonal pyrrhotite was analyzed via electrochemical interaction, copper ion concentration testing, and X-ray photoelectron spectroscopy (XPS) characterization. Besides, the effect of electrochemical interaction between the two minerals on the flotation separation was
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· To effectively separte pyrite from chalcopyrite, tetrazine thione group and hydrocarbon chain were combined to synthesize tetrazine thione collectors. The flotation performance of tetrazine thione collectors on chalcopyrite and pyrite was investigated, and the influence of different hydrophobic groups on the flotation performance was revealed.
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· To address the issue of mediocre separation efficiency of depressants in the copper-lead separation process, this article synthesized a macromolecular organic depressant, polymaleic anhydride-ethylenediaminetetraacetic acid (PMA–EDTC), using a polycarboxylic macromolecule as the backbone and also introducing –N–(C=S)–S– as
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:Publish Year:2021Weiyong Cui, Jianhua Chen · The significance of frothers in the context of mineral flotation is widely recognized, particularly in relation to their impact on bubble size and dispersion,
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:FlotationMinerals · Flotation is a practical technique to separate valuable minerals from gangue minerals based on differences in physical and chemical properties on mineral surfaces. Flotation reagents, such as
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· The separation performance of flotation reagents is closely related to their effect on the hydrophobicity of different mineral surfaces. The contact angles of the galena and pyrite surfaces after treatment with DI water, SPTS solution and SBS solution (5 × 10 −4 mol/L, pH = 7) are shown in Fig. 9 .
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· Abstract. This paper reviews rare earth minerals (monazite and xenotime) separation by flotation. A wide range of monazite and xenotime flotation test results are summarized including: reasons of variation in the point of zero charges on these minerals, the effects of various flotation conditions on zeta potential of monazite and
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The flotation separation of the minerals was realized through adding a low dosage of fenugreek gum, which efficiently reduced the lead entrainment in chalcopyrite. Miao et al. [29] found that locust bean gum, a natural plant gum similar to guar gum, could selectively attenuate the floatability of galena contained in synthetically mixed Cu-Pb sulfide
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· Though the conclusions are drawn based on the separation of diaspore/kaolinite in a NaOl-flotation system, we are convinced that they may also be applicable in other mineral flotation systems. All in all, this study is only a beginning, much work needs to be done before fully understanding the role of MNBs in minerals separation.
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· Copper oxide minerals are important copper resources, which include malachite, azurite, chrysocolla, cuprite, etc. Flotation is the most widely used method for the enrichment of copper oxide minerals in the mineral processing industry. In this paper, the surface properties of copper oxide minerals and their effects on the mineral flotation
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· The flotation separation of smithsonite and calcite is difficult due to their similar surface properties. In this study, cupferron was applied as a collector to realize the separation of smithsonite and calcite. Micro-flotation experiment results indicated that smithsonite and calcite express different floatability after treatment with cupferron. The
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· Flotation. According to the difference in physicochemical properties of mineral particle surfaces, flotation is the method that selectively enriches the target minerals in the pulp at the gas-liquid interface and separates them from the pulp, thus realizing the mineral separation. It is also known as floating separation.
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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 bubbles are then carried to the surface and removed, while
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· Steps in the Flotation Process. The flotation process is a widely used method for separating minerals from their ores. It relies on the differences in surface properties of the minerals to be separated. Here are the steps involved in the flotation process: Grinding: The ore is first crushed into a fine powder through the process of
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· 1. Introduction The flotation process is a separation technique primarily used in mineral processing for the recovery of minerals (Wills and Finch, 2016), that also finds application in other industrial processes such as wastewater treatment and paper recycling (Saththasivam et al., 2016, Vashisth et al., 2011).).
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:Publish Year:2021 · Flotation separation is mainly used for removing particulates from aqueous dispersions. It is widely used for ore beneficiation and recovering valuable materials. This paper reviews the
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