| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method for separating an element constituting nitride, forming another alloy containing the separated element, and collecting and reusing the separated element, by melting the nitride at a lower temperature than the melting point thereof. <P>SOLUTION: The method for melting the nitride includes: preparing a solid nitride comprising nitrogen and another element, for instance, an AlN crystal; subsequently preparing a melt of an elemental metal or a mixture of metals having smaller electronegativity than that of the element in the nitride, for instance, a mixed melt of (Na-Li); and charging the nitride into the melt and heating the melt to melt the nitride, for instance, charging the AlN crystal into the mixed melt of (Na-Li) to melt it. Thereby, the AlN crystal has been melted into the melt at 870°C though the melting point of the AlN crystal is 2,000°C or higher. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
