Keyword : Mineral
All : 60
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2022 Vol.31, Issue 3 pp. 3-15
- Extractive Metallurgy of Lithium
- Ho-Sang Sohn
- . Principal commercial lithium minerals with composition Mineral Formula % Lithium content Theoretical Commercial minerals Pegmatites Spodumene LiAlSi2O6 or Li2O·Al2O3·4SiO2 3.73 1.9~3.3 Lepidolite LiKAl2F2Si3O9 or LiF·KF·Al2O3·3SiO2 3.56 1.4~1.9
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2022 Vol.31, Issue 5 pp. 20-25
- A Study on the Decontamination of Cs-137 and Sr-90 Contained in the Liquid Radioactive Waste Discharged from the Spent Fuel Storage Tank Using Microalgae
- Tae Young Kim, Hye Min Park, Yang Soo Song and Un Jang Lee
- 조류에 의한 Sr-90 제염 메커니즘 모식도는 Chlorella Vulgaris에 의해 침전성이 높은 Bio-Mineral인 Strontianite(SrCO3)을 생성함으로써 제염이 가능하다고 알려져 있다. 즉, 방사성 폐액 중 함유되어 있는 Sr-90 성분과 Chlorella Vulgaris가 가지고 있는 CO3이 화학반응에 의하여 Strontianite(SrCO3)형태로 침전하여 제거가 가능하다. 본 연구에서는 미세조류의 Cs-137, Sr
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2022 Vol.31, Issue 2 pp. 63-69
- Crystal Structure Behavior of Vanadium-Titanium Magnetite (VTM) Ore by Planetary Ball Mill
- Yosep Han, Seongmin Kim, Minuk Jung and Ho-Seok Jeon
- 이 가장 많이 존재하는 것으로 확인되었다. 사용된 VTM내 자철석과 티탄철석이 전체 함량에 85% 이상을 가지는 것으로 나타났다. 맥석광물은 대체적으로 철 기반의 실리케이트 화합물(hornblende, chlorite, biotite 그리고 hercynite)으로 관찰되었다. Fig. 1. X-ray diffraction (XRD) pattern and mineral phase composition result by EVA and TOPAS
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2023 Vol.32, Issue 1 pp. 21-32
- High-purity Lithium Carbonate Manufacturing Technology from the Secondary Battery Recycling Waste using D2EHPA + TBP Solvent
- Dipak Sen, Hee-Yul Yang and Se-Chul Hong
- are required to extract. In hydrometallurgical process, LIBs are generally first leached with mineral acids and NCM (Ni, Co and Mn) are recovered as their hydroxide salt adding NaOH to the leaching solution. The filtrate so obtained after this
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2025 Vol.34, Issue 3 pp. 43-50
- Continuous Solvent Extraction Using Versatic Acid 10 for the Production of High-Purity Nickel Sulfate
- Sanghun Bae, Jinyoung Je, Hyunwoo Shim, Gunwoo Lim and Hongin Kim
- Schematic flow of mixer–settler system for multi-stage extraction and stripping of metal ions. Fig. 2 Photograph of the lab-scale Mixer–Settler apparatus used in this study, owned by KIGAM (Korea Institute of Geoscience and Mineral Resources). 3. 결과
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2021 Vol.30, Issue 5 pp. 10-16
- A Study on the Characteristics of Clinker and Cement as Chlorine Content
- Young-Jun Lee, Nam-Il Kim, Jeong-Hoon Cho, Sung-Kwan Seo and Yong-Sik Chu
- 되며, chlormayenite는 1300°C 이상에서도 안정적으로 존재한다고 보고하였다. 본 연구에서도 클링커 XRD 패턴 관찰을 통해 상기와 같이 chlormayenite 결정 생성 및 상대적 생성량 등을 확인ㆍ유추할 수 있었으며, 이는 기존 연구자들과 유사한 결과이기도 하였다. Fig. 3. XRD Pattern of clinker added CaCl2. 정량 X-선 분석기를 사용한 염소 함량별 클링커 광물 함량을 Table 3. M...
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2020 Vol.29, Issue 2 pp. 62-68
- Recovery of the Vanadium and Tungsten from Spent SCR Catalyst Leach Solutions by Hydrometallurgical Methods#
- In-Hyeok Choi, Gyeonghye Moon, Jong-Hyuk Jeon, Jin-Young Lee and Kumar Jyothi Rajesh
- liquor obtained from spent SCR catalyst and initially it is having 1238 mg/L of vanadium and 8635 mg/L of tungsten at pH of the liquor was 14. Further studies diluted with mineral acids such as HCl and H2SO4 to reach lower pH conditions. Each
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2021 Vol.30, Issue 3 pp. 70-81
- Development of Material Separation Process for Recycling Waste Coffee Capsules
- Sang-Ho Baek, Yosep Han, Seongmin Kim, Davaadorj Tsogchuluun and Ho-Seok Jeon
- /cm 4.8 2.3 Mineral concentration Combustion test % 1.7 0.0 Contents of hazardous Substances XRF ppm Br : ND Pb : ND Cr : ND Hg : ND Cd : ND 2.4. 폐 커피 캡슐 재질분리 공정 본 연구에서는 폐 커피 캡슐의 재질분리 공정 개발을 통해 커피 캡슐 폐플라스틱의 재활용 가능성을 평가하였다. Fig. 12 Material separation
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