Substance flow analysis of molybdenum associated with iron and steel flow has been conducted in this study. The demand of molybdenum in iron and steel section reaches approximately 85% of total molybdenum consumption in Japan. Total demand of special steel products in final commodity is 18.4×106 t (for domestic: 12.4×106 t), and that contains 14.3×103 Mo-t (for domestic: 9.6×103 Mo-t) of molybdenum in 2004 fy. In addition, crude steel for special steel (23.8×106 t) contains 18.5×103 Mo-t of molybdenum. Approximately 70% (12.3×103 Mo-t) of molybdenum in the crude steel flows into domestic market, and about 45% of that is used for motor vehicles production. Improvement of dismantling technology and standardizing of special steel scrap will help to promote rare metal recycling.
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Nakajima et al. (2007) studied this question.
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