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ORIGINAL PAPER Magnetic impurity effects on self-discharge capacity, cycle performance, and rate capability of LiFePO 4/C composites Kai-Pin Huang1 & George Ting-Kuo Fey1 & Yi-Chuan Lin1 & Pin-Jiun Wu2 & Jeng-Kuei Chang1 & Hsien-Ming Kao3 Received: 28 April 2014/Revised: 12 April 2015/Accepted: 25 April 2015/Published …
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At low temperatures impurity paramagnetism leads to μ ∼ T −1 and therefore a minimum in λ eff.The competing magnetic and superconducting contributions in Eq. (14.49) played an important role in the determining the pairing state in electron-doped cuprates. Early penetration depth measurements in Nd 2−x Ce x CuO 4−y (NCCO) extended to 4.2 K …
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According to their studies, two-stage magnetic separation with low and medium field intensity has a significant effect on the efficiency of separating magnetic materials from non-magnetic materials. Table 5 shows the results of the elemental analysis of magnetic and non-magnetic fractions obtained from the wet magnetic separation of …
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Magnetic separation has been used for many years in the mining and wastewater industries. 23, 24, 25 The concept of magnetic separation applied to the bioprocessing industry involves the use of magnetic chromatography resin that can ... transfection, and impurity analysis. Åsa Hagner-McWhirter and Elin Monie at Cytiva are …
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To sum up, the impurities in fused silica can be effectively removed by two purification processes: magnetic separation microbial leaching and magnetic separation mixed acid leaching, with the impurity removal efficiency up to 79.35% . The iron impurities in quartz sand are removed by roasting combined with acid leaching.
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The main impurity elements in the magnetic concentrate were Zn and S, present at concentrations of 1.28% and 2.20%, respectively. These impurities are attributed to the presence of zinc oxide and calcium sulfate introduced during the …
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Superconducting magnetic separation is a method of mineral separation by a magnetic separator with superconductor as a magnetic system. Its application is mainly with the aid of a superconducting magnetic separator equipment. Following the birth of the first superconducting magnet in 1961, J.D. Bannister of the United States …
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In this study, we focus attention on the separation method by direct-current magnetic fields using superconducting magnet. ... In our previous study, the association between electromagnetic force which acts on an impurity in static metal fluid and motion of an impurity is clarified [9]. As the fundamental study of electromagnetic separation in ...
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There is an issue of contamination by metallic wear debris in the industrial plants processing highly viscous fluid. It is necessary to remove the ferromagnetic impurities such as metallic wear debris. In the case several kinds of ferromagnetic particles exist in the highly viscous fluid, it is required to remove the object material selectively. In this study, …
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In this work, the magnetic impurity-removed LiFePO4/C composites exhibited the best discharge capacity of 158 mAh g−1 at 0.2 C and excellent cycle performance with a capacity retention of 92% after 500 cycles at 5 C. Self-discharge experiments showed that the purified LiFePO4/C maintains 97% residual capacity after …
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Dry low-intensity magnetic separators (DLIMS) are generally employed to: – upgrade iron ores containing relatively large particles and strongly magnetic minerals – separate iron …
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magnetic impurity from potash feldspar with higher pulp density. The iron magnetic impurity separates mixed with potash feldspar, therefore concentrate yield and iron grade are high, too. 3.3 Influence of magnetic field intensity on the iron removal from potash feldspar ore Magnetic separation is a process that minerals
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Finally, both the resulting concentrate and the tailings obtained from magnetic separation were subjected to filtration, drying, sampling, and testing. The magnetic separation concentrate was subjected to additional leaching in a glass beaker using 2 M H 2 SO 4, with a liquid-solid ratio (L/S) of 10 mL/g, while being stirred …
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Magnetic separation technology is a physical separation method that uses the differences in magnetism between matter to separate them from each other by different motion behaviors in a non-uniform magnetic field. ... Saeed, M.; Mikkola, A.; Mänttäri, M.; Louhi-Kultanen, M. Impurity Separation Efficiency of Multi-Component Wastewater in a ...
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Natural kaolin has color as mined due to the iron containing micas, tourmaline, pyrite, anatase and rutile present in the material. To remove these impurities, kaolin can be magnetically cleaned with a continuous high gradient magnetic separator to produce highly white material suitable for paper or porcelain (Oder and Price, 1973; …
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Magnetic separation process is a combination and procedure for separating magnetic materials from non-magnetic materials by utilizing magnetic separation.
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The removal of iron ion from leaching solution is critical for the recovery of value metals, with the method of choice commonly being crystallization (precipitation). This paper summarized the new improvements in iron removal by precipitation methods in recent years and proposed a novel process, magnetic seeding and separation. The new …
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The magnetic nanoparticle assisted photocatalytic oxidation-reduction is an effective method to remove and detoxify the organic dyes and the heavy metal ions …
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Hence, a sodium roasting followed by a magnetic separation process was proposed as Fig. 7-b. The effect of roasting parameters on the separation of tin and iron were investigated. ... Process development for impurity removal from a tin gravity concentrate. Min Eng, 13 (8–9) (2000), pp. 871-879. View PDF View article View in …
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The magnetic separation has been used for the pre-enrichment which has advantages of short process, low cost, and friendly environment etc. ... a low-intensity magnetic separation is necessary before high-intensity magnetic separation . Meanwhile, some impurity elements could be eliminated by the process, which could bring great …
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DOI: 10.1016/J.PHYSC.2009.05.173 Corpus ID: 119545324; Separation of impurity in molten metals by using superconducting magnet @article{Terada2009SeparationOI, title={Separation of impurity in molten metals by using superconducting magnet}, author={Takaya Terada and Yoko Akiyama and Yoshinobu Izumi and Shigehiro …
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The widely used method is using a magnetic separator since the iron ore is a material that is strongly attracted by magnetic force. In contrast, the impurity material is repelled by magnetic forces so that the separation of iron sand from impurities can be carried out properly.
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Iron constitutes an impurity in leaching solutions, which must be removed before electrolysis . ... After the magnetic separation, the magnetic concentrate and non-magnetic tailings were obtained after solid–liquid separation by filtration. Both products were soaked in pH 3.0 sulfuric acid solution for 30 min under vigorous stirring at the ...
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Magnetic separation is based on direct physical separation of minerals in a magnetic field. Related to magnetic ... Then it is subjected to final beneficiation by high intensity dry magnetic separation. Depending on the impurity content in the ore, the company has seven magnesite products, such as supper (0.00 - 0.24 % Fe 2 O 3), extra (0.25 ...
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Therma-Max™ LSA Streptavidin is a thermoresponsive magnetic nanoparticle (TMNP). It can be introduced conveniently to molecular recognition groups by avidin–biotin interaction. In this study, we demonstrated the detection of nickel(II) ions by the magnetic separation of TMNP induced by their phase transition under microflow. …
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In this work, the magnetic impurity-removed LiFePO4/C composites exhibited the best discharge capacity of 158 mAh g−1 at 0.2 C and excellent cycle performance with a capacity retention of 92% after 500 cycles at 5 C. Self-discharge experiments showed that the purified LiFePO4/C maintains 97% residual capacity after a week at 0.5 C, which is ...
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An individual Fe vacancy can locally destroy superconductivity in a similar way to a magnetic impurity in conventional superconductors. ... W., Ding, H., Deng, P. et al. Phase separation and ...
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As the primary beneficiation method for iron ore, magnetic separation improves ore grade, reduces silica and harmful impurity content, and facilitates the smelting process [28], [32], [33]. Utilizing magnetic separation is an important step towards achieving green and low-carbon steel production.
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Magnetic separation, mainly high-gradient magnetic separation, can remove harmful impurities to improve the quality of concentration. High-gradient …
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The separation method by using electromagnetic force is receiving particular attention as elimination method of impurities in molten metal. In this study, low-melting metal is used as model metal ...
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