목차
1. 서론 1
2. 니오븀 물질흐름 2
2.1. 통합물질흐름 방법론 2
2.2. 국내 니오븀 물질흐름 3
결론 6
참고문헌 7
Table 1. Ferro-niobium (Ferro-columbium) World Production by country1 (USGS,2011) 1
Table 2. Input of Raw Materials stage 4
Table 3. Ferro-niobium production by country 4
Table 4. Input, import and export of 1st stage 5
Table 5. Input, import and export of Intermediate stage 5
Table 6. Amount of niobium contained in the end products 5
Table 7. Amount of collected niobium in collection stage 6
Fig. 1. Annual average price of niobium. 2
Fig. 2. Integrated materials flow methodology. 2
Fig. 3. Integrated material flow analysis concept of Center for Resources Information & Management of Korea. 2
Fig. 4. An integrated flow sheet concept used by SIM² @K.U.Leuven. 3
Fig. 5. Usage ratio of alloy steel products. 4
Fig. 6. Niobium consumption ratio of end products in Korea. 5
Fig. 7. Simplified material flow analysis of niobium in Korea in 2012. 6