Keyword : Mineral
All : 60
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2022 Vol.31, Issue 5 pp. 42-51
- A Fundamental Study on the Load Resistance Characteristics of Revetment Concrete Block with Recycled Concrete Aggregate and GFRP Rebar
- Yongjae Kim, Jongho Kim and Doyoung Moon
- 25 150 5.0 45.7 45.6 192 341 - 728 - 977 - MRB50 192 - 341 437 273 391 564 MRB70 MRR50 165 - 293 465 291 416 600 MRR70 Table 4. Mineral compositions Cement C3S (%) C2S (%) C3A (%) C4AF (%) Fineness (cm2/g) OPC 55 23 11 8 3,300 MHESC 42 21 12 9 4,600
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2020 Vol.29, Issue 2 pp. 28-36
- Comminution Characteristics for Recycling Waste Glass Bottle
- Han Sol Lee and Hoon Lee
- bKorea institute geoscience and mineral resources Table 3. The condition of Ball mill grinding Grinding condition Value Mill diameter, D (cm) 20 Mill length, L (cm) 20 Ball type Stainless Steel Ball diameter, d (cm) 2.54 Ball loading, J 0.3 Sample
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2023 Vol.32, Issue 5 pp. 3-17
- Lithium Extraction from Spent Lithium-Ion Batteries (LIBs) Using Mechanochemical Process: A Comprehensive Review
- Yuik Eom, Richard Diaz Alorro, Jonah Gamutan and Aleksandar N. Nikoloski
- . Recycling for moderating the soaring mineral demand is estimated to have a minor impact until 2030, but this would contribute significantly after 2030. Many countries established waste LIBs collection and announced the strategic recycling policy to
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2023 Vol.32, Issue 1 pp. 3-12
- Overview on the Trend Analysis for the Dealkalization Technology of Bauxite Residues
- Pyeong Seop Seo and Man Seung Lee
- TiO2 TiFeO3 SiO2 0.1 4-8 15 Kaolinite Quartz Si4Al4O10(OH)8 SiO2 Fig. 2. Simplified Bayer Process. Table 3. Operating conditions in Bayer process of bauxite ores Main Al mineral Gibbsite, Al(OH)3 Boehmite, γ-AlOOH Temperature (℃) 104-145 200-232
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2020 Vol.29, Issue 4 pp. 58-66
- Synthesis of Na Compounds from Sodium Concentrated Solution Using Carbonation and Cryo-crystallization
- Seung-Woo Lee, Soochun Chae and Jun-Hwan Bang
- 되며 이는 향후 각 공정별 장·단점 및 공정비용에 대한 경제성 평가연구에서 구체적으로 논의하기를 희망한다. Fig. 9. Conjugated process with desalination, mineral carbonation, and salinity gradient power technology related to Na concentrated solution. 4. 결 론 탄산화 반응 및 저온 결정화 공정을 이용하여 나트륨 농축수로부터 나트륨
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2024 Vol.33, Issue 3 pp. 12-20
- Physical Properties of Cement Using Slag as Raw Mix of Clinker
- Young-Jun Lee, Do-young Kwon, Bilguun Mend and Yong-Sik Chu
- 96.0 클링커는 13.42 % 수준이었다. 따라서 LSF 2.0이 상향될 경우, alite 함량은 5.0 %가 증가하였으며, belite 함량은 4.5 % 감소 및 aluminate와 ferrite는 0.15 % 감소하였다. Table 8. Content of clinker mineral as LSF 92.0~96.0 (Unit : wt.%) LSF CaCO3 Replacement Alite Belite Aluminate Ferrite...
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2025 Vol.34, Issue 4 pp. 3-14
- Smelting and Recycling of Zirconium
- Ho-Sang Sohn
- production of zirconium mineral concentrates (Source: USGS). . Zr 광석의 약 75 %는 호주에 매장되어 있으며, 그 외 남아프리카공화국, 세네갈 등 일부 지역에만 매장되어 있다. 우리나라에도 충북 제천 등 일부 지역에 매장되어 있는 것으로 알려져 있다. 한편 Zr 정광 생산량도 호주와 남아프리카공화국이 53 % 이상을 차지하며, 그 외 모잠비크, 중국, 미국, 인도네시아 등에서 생산되고 있
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2024 Vol.33, Issue 6 pp. 3-14
- Removal of Manganese Ions from the Sulfuric Acid-leached Waste Cathode NCM Lithium-ion Batteries Using Precipitation Method
- Dipak Sen, Deock Kyu An, Eun Hyeok Kim and Jang Hyun Seo
- precipitation of manganese oxide using potassium permanganate focused on applications used for water treatment and industrial waste solutions, such as those from mineral processing. The net ionic reaction for the oxidative precipitation of Mn2+ with
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