研究論文
磁気力制御法による希土類元素含有蛍光体の濃縮回収技術の開発
2020 年 55 巻 3 号 p. 189-194
詳細
2020 年 55 巻 3 号 p. 189-194
In order to efficiently collect used phosphors containing rare earths, an attempt was made to concentrate the phosphors. The technique used was a combination of high-gradient magnetic separation and the magneto-Archimedes’ method. Each phosphor was fractionated and concentrated from waste phosphors. LAP that emits green light is fractionated using highgradient magnetic separation and YOX that emits red light was fractionated using the magneto-Archimedes' method. Concentrations of 5.5 and 1.9 times were achieved, respectively.
