レアメタル資源の供給と需要の動向に関する一考察

概要

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The present and future aspects of maldistribution and lifetime calculated from the worldwide production and reserves of rare metals are examined based on the database presented in this study. A positive correlation between maldistribution and lifetime is also shown. It remarkably indicates that if the larger is maldistribution at a given metal, the longer is its lifetime. Some rare metals, which have lower maldistribution rate and shorter lifetime, such as antimony and bismuth, reveal the increase of production, however no considerable variation of reserves is observed. In other words, the quantities of the remaining resources of these metals have the possibility to be smaller in the near future. <BR>The supplies and demands of rare metals in Japan are also examined. Consequently, the result presented in this paper supported the conclusion that two investigated rare metals such as antimony and bismuth have the tendency of developing new various applications, alternatively the tendency of the previous major application have been decreased simultaneously.
社団法人資源・素材学会の論文