##tihuan2##The effects of carbonate minerals (dolomite and siderite) on the flotation of hematite using sodium oleate as a collector were investigated through flotation tests, supplemented by dissolution ...
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##tihuan2##In order to effectively eliminate the effect of fine carbonate minerals on quartz flotation, the influence of fine siderite on quartz flotation was studied as well as the mechanism or role of ...
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##tihuan2##Pregelatinized starch (PS) was used for the selective flocculation and flotation of fine siderite in a carbonate-containing iron ore. With PS, the flotation of fine siderite was improved. The repulsive forces between fine siderite particles and the attractive forces between siderite and hematite or quartz were decreased after …
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##tihuan2##Heterocoagulation can occur between fine siderite and hematite particles, which would result in the low efficiency of their separation during the flotation process. To date, there have been no mature methods to increase their separation efficiency. In this paper, citric acid was used as a regulator to enhance the slurry dispersion efficiency. …
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##tihuan2##Froth flotation is the most effective industrial method used to separate fine-grained minerals. The main problem of complex ore flotation is the negative effect of interactions among minerals in slurry, leading to variation in surface properties during separation. In this review, studies on the interactive effect among minerals on the …
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##tihuan2##Derjaguin-Landau-Verwey-Overbeek (DLVO) theoretical calculations reveal that adhesion on quartz increases when the siderite particle size decreases and that fine …
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##tihuan2##AFM force measurement and turbidity analysis confirmed that the repulsive force between siderite and hematite or quartz caused by citric acid promoted the …
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##tihuan2##The froth flotation process typically involves a series of multiple flotation cells arranged in a sequential manner. This configuration allows for a step-wise separation of valuable minerals from the ore, with each cell playing a specific role in the overall process [].The use of multiple cells in series enhances the efficiency of the flotation process by optimizing …
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##tihuan2##In order to effectively eliminate the effect of fine carbonate minerals on quartz flotation, the influence of fine siderite on quartz flotation was studied as well as the mechanism or role of ultrasonic treatment in the process. The results of adsorption capacity measurement and flotation solution chemical calculation show that fine siderite and its dissolved …
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##tihuan2##The presence of carbonate minerals, such as siderite, causes a detrimental effect on quartz flotation recovery (froth product) and separation selectivity between quartz and iron minerals. In this work, the effect of carbonate minerals on quartz flotation from iron mineral was investigated using sodium oleate as collector, starch and calcium as ...
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##tihuan2##Flotation results showed that both the grade and recovery of iron decreased with the increasing content of siderite and the decreasing grain sizes. Molecular arrangement of the flotation reagents in solution was visually displayed by the optimum …
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##tihuan2##Flotation of single minerals. Sodium oleate was used as the collector for the flotation of both single mineral and artificial mixtures. Based on the conditional experiment results shown in Fig. S1-S3, the optimal collector dosages for siderite, hematite, and quartz flotation were set as 200 mg‧L-1, 240 mg‧L-1, and 240 mg‧L-1, respectively ...
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##tihuan2##Siderite —The mineral form of iron (II) carbonate, with the chemical formula Fe 2 CO 3 is called siderite. The mineral contains around 40%–48% iron and is a primary component …
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##tihuan2##Efficiently discovering the interaction of the collector oleate and siderite is of great significance for understanding the inherent function of siderite weakening hematite reverse flotation. For this purpose, investigation of the adsorption behavior of oleate on siderite surface was performed by density functional theory (DFT) calculations …
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##tihuan2##This work systematically studied the adsorption behavior of sodium oleate (NaOL) on hematite, limonite, and siderite and their corresponding flotation performance at alkaline pH.The adsorption behavior and conformation of NaOL on mineral surfaces were investigated using zeta potential analysis, Fourier-transform infrared (FT-IR) …
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##tihuan2##Results of single mineral flotation. Effects of sodium oleate concentration on flotation recovery of siderite, hematite and quartz were investigated by single mineral flotation at neutral pH. As can be seen from Fig. 6, recovery of siderite and hematite increased with the increasing concentration of sodium oleate.
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##tihuan2##Both natural cleavage plane of siderite and calculated plane were used to investigate the flotation of the three minerals. Based on the molecular simulation in solution with water as medium ...
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##tihuan2##The flotation results show that interactions between siderite and quartz are the main reasons that siderite significantly influences the floatability. The interactions are …
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##tihuan2##Single mineral flotation experiments indicated that acidified pretreatment significantly reduced the floatability of aegirite (from 78.4% to 15.1%) and specular-ite (from 88.7% to 38.4%) at pH 10 ...
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##tihuan2##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 …
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##tihuan2##The effects of siderite on reverse flotation of hematite were investigated using micro flotation, adsorption tests, and Fourier transform infrared spectroscopy. The flotation results show that interactions between siderite and quartz are the main reasons that siderite significantly influences the floatability. The interactions are attributed to …
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##tihuan2##Siderite prevents effective utilization of those ores. It is essential to investigate flotation behavior of siderite-hematite-quartz for processing those iron ores. …
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##tihuan2##The feasibility of dephosphorization using the flotation process and its mechanism of high-phosphorus oolitic hematite were discussed in this paper. The results showed that phosphorus minerals …
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##tihuan2##The flotation results showed that quartz could be collected effectively at pH 11.0-12.0 in the reverse flotation. For siderite, the recovery peaked at 83.4% at pH 8.0, where siderite presented different floatability from magnetite and hematite. Exploiting such difference, the separation of siderite could be achieved.
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##tihuan2##The interactive effects of mineral flotation mean the influence of the adsorption and surface conversion of more than two minerals on flotation separation in the complex ore flotation system. ... Wang Y F, et al. Effect and mechanism of siderite on reverse anionic flotation of quartz from hematite[J]. Journal of Central South University, …
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##tihuan2##The flotation time was controlled at 4 min and then the floating (tailing) and underflow (concentrate) products were dewatered by filtration, dried and weighed to obtain mineral recovery. In single-mineral flotation, the recovery of siderite and hornblende was determined by Eq.
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##tihuan2##3.2. Effects of siderite on single mineral flotation The effects of siderite on flotation of hematite and quartz in the oleate starch CaCl2 system were investigated further. To clarify the effects of slime adhesion and dissolved spe …
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##tihuan2##The flotation recovery of siderite from the binary mixtures of different minerals as a function of flotation time before and after adding citric acid is shown in Fig. 4. The ultimate recoveries ( t = 6 min) of siderite and hematite were 84.29% and 63.91% in the absence of citric acid ( Fig. 4 (a)), indicating that there was much hematite ...
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##tihuan2##The flotation results show that interactions between siderite and quartz are the main reasons that siderite signifi- cantly influences the floatability. The interactions are …
WhatsApp: +86 18221755073
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