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- 저자 : Yuanpeng Jie (검색결과 2 건)
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Yuanpeng Fu,Yaqun He,Hangchao Chen,Cuiling Ye,Qichang Lu,Rongnian Li,Weining Xie,Jie Wang 한국공업화학회 2019 Journal of Industrial and Engineering Chemistry Vol.79 No.-
The present work focuses on simultaneous recycling of Li and Co from crushed products of mixedelectrode materials using mixed organic acids, in which benzenesulfonic acid and formic acid werecooperatively used as the leaching reagents. Results show that the optimal leaching efficiency of 97% Coand 99% Li were obtained under the conditions of 1.3 mol/L benzenesulfonic acid, 1.5 mol/L formic acid, asolid to liquid (S/L) ratio of 30 g/L, and 40 min reaction time at 50 C. Meanwhile, the leaching of Li and Cofits well to logarithmic rate model with apparent activation energy of 32.7 and 47.0 kJ/mol in this givenleaching system, respectively. Besides, cobalt was directly recovered from the leach liquor as pure cobaltbenzene sulfonic with the recovery efficiency of 99%, and lithium can be entirely precipitated by addingphosphoric acid. Further, the reaction mechanism involves the leaching-hydrating-complexing model ofLiCoO2 particles was proposed based on the dissolution behavior of metals and then verified bymorphological and phase characterization (i.e. FT-IR, XRD and SEM-EDS) of the recycling product. Thewhole process is found to be effective and sustainable for recovery of Li, Co and graphite from mixedindustrial crushing product of spent LIBs.
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Xuesong Feng,Yuanpeng Jie,Haidong Liu,Xun Sun,Bin Xu 보안공학연구지원센터 2016 International Journal of Hybrid Information Techno Vol.9 No.6
Utilizing a computer-aided simulation approach, this work studies the impacts of different inter-stop transport distances on the transport efficiency evaluated by the transport time cost intensity of a typically composed Chinese freight train hauled by representative types of locomotives in view of different target speeds. It is found that the decelerated decrease of the transport time cost intensity with improving the target speed is much traded off by decreasing the stop-spacing especially below approximately 20.00 km. Moreover, the decrease of the inter-stop transport distance especially shorter than about 20.00 km obviously increases the transport time cost intensity in an accelerated way for the same target speed. Such a trend is more apparent when the target speed becomes relatively high. Therefore, it is suggested that the inter-stop transport distance of a freight train ought to be over 20.00 km for relatively high transport efficiency.
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