Fundamental Study for Resource Recovery From Urban Mine by Magneto-Archimedes Effect
Fundamental Study for Resource Recovery From Urban Mine by Magneto-Archimedes Effect
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DOI：
10.1109/tasc.2016.2547878
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发表时间：
2016-04
影响因子：
1.8
通讯作者：
Y. Matsuura;O. Miura
中科院分区：
文献类型：
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作者：
Y. Matsuura;O. Miura
作为回收城市矿山宝贵资源的有效方法之一，我们提出利用磁阿基米德效应进行磁选。磁阿基米德效应是一种现象，物质在顺磁性液体介质中通过施加磁场梯度而悬浮在特定的高度。悬浮高度仅取决于液体介质与物料之间磁化率和密度的差异。本文研究了利用磁-阿基米德效应从城市矿山中选择性回收有价值资源的可能性。研究了金、氯化银、氧化钯、铜、钯、铂和破碎电子衬底等几种有价材料在氯化锰水溶液中作为顺磁性液体介质的悬浮性能。结果，金、氯化银、氧化钯和铜漂浮在不同的高度，而钯和铂则一直沉在底部。我们确认每种材料的悬浮高度几乎与其理论高度相同。在一个电子衬底破碎的实验中，我们观察到只有金漂浮在它自己的高度。
As one of the effective methods for valuable resources recovery from urban mine, we propose a magnetic separation using the magneto-Archimedes effect. The magneto-Archimedes effect is a phenomenon that materials levitate at a particular height in a paramagnetic liquid medium by applying a magnetic field gradient. The levitating height depends on only the difference of magnetic susceptibility and density between the liquid medium and the materials. In this paper, we investigated the possibility of recollecting valuable resources selectively from an urban mine by the magneto-Archimedes effect. We studied the magnetic levitating properties for several kinds of valuable materials such as gold, silver chloride, palladium oxide, copper, palladium, platinum, and crashed electronic substrate in manganese (II) chloride aqueous solution as a paramagnetic liquid medium. As a result, gold, silver chloride, palladium oxide, and copper levitated at each different height, whereas palladium and platinum remained sinking at the bottom. We confirmed that the levitating height for each material was almost the same as its own theoretical one. In an experiment for a crashed electronic substrate, we observed only gold levitating at its own height.