Selective Extraction of Y and Eu by Non-thermal Acid Leaching of Fluorescent Powder Activated by Mechanochemical Treatment using a Planetary Mill.
作者： Qiwu ZHANG , Jinfeng LU , Fumio SAITO
DOI: 10.2473/SHIGENTOSOZAI.116.137
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摘要: Fluorescent powder was subjected to mechanochemical (MC) treatment using a planetary mill control its structural change followed by selective leaching of Y and Eu with 1N HCl solution at room temperature. The crystal structure the fluorescent tends be transferred into disordered state MC treatment. It is possible choosing condition such as media size rotational speed mill. optimum gives us improve yield Eu, depressing La, Ce Tb in acid leaching. In present experiment 15 mm ball size, preferable would conducted within about 20 minutes 400rpm speed.
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