| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To suitably separate each of a blue fluorescent substance, a green fluorescent substance, and a red fluorescent substance from a three-color mixed fluorescent substance formed by mixing the three kinds of the blue, green, and red fluorescent substances, for the purpose of easily recovering rare earth metals from the mixed fluorescent substance. <P>SOLUTION: The three-color mixed fluorescent substance formed by mixing the three kinds of the fluorescent substances of the blue fluorescent substance, the green fluorescent substance, and the red fluorescent substance is dispersed in a solution the pH of which is controlled to be 10 or more, and a collecting agent is added to the solution, so that the blue fluorescent substance, the green fluorescent substance, and the red fluorescent substance are separated from each other. <P>COPYRIGHT: (C)2004,JPO</p> |
