선광 공정에 의한 국내 흑연광 내 흑연 정광 회수 특성: 부유선별 성능에 대한 광물 구성의 영향
Recovery Characteristics of Graphite Concentrate by Beneficiation Process for Graphite Ores in Korea: Effects of Mineral Composition on Flotation Performance
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초록
본 연구는 국내 저품위 흑연광 두 종류(봉화 및 가평)를 대상으로 전통적인 선광 공정을 적용하여 고품위 흑연 정광을 생산하는 방법에대하여 수행하였다. 두 지역에서 채굴된 흑연 원광의 물리적, 화학적 특성을 비교하였으며, 전통적인 선광 공정에 의해 얻어진 흑연 정광의 품위, 회수율, 수율 그리고 부광비를 평가하였다. 실험 결과, 가평 흑연광은 상대적으로 낮은 탄소 품위에도 불구하고 동일한 공정 및조건에서 봉화 흑연광보다 높은 회수율 그리고 부광비를 보였으며, 이것은 원광의 광물 구성에 의해 기인한 것으로 판단된다. 게다가, 부유선별 공정에서 투입되는 억제제와 포수제에 따라 적절한 조건을 도출하였다. 따라서, 본 연구에서 도출된 결과는 국내 저품위 흑연광으로부터 상업적 활용 잠재 가능성을 가지기 위한 최적의 선광 공정을 설계하기 위한 기초인자로서 활용할 수 있을 것으로 판단한다.
Abstract
This study was conducted to produce high-grade graphite concentrate by applying the traditional beneficiation process to two types of low-grade graphite ores in Bonghwa and Gapyeong regions of Korea. The physicochemical properties of graphite ores mined from the two areas were compared each other, and the grade, recovery, yield, and enrichment ratio of graphite concentrate obtained by a traditional beneficiation process were evaluated. The experimental results revealed that Gapyeong graphite ore exhibited higher recovery and enrichment ratio compared to Bonghwa graphite ore under the identical processes and conditions, despite its relatively low carbon quality. This was attributed to the ore species composition. Additionally, optimal conditions were derived based on the distribution of mineral species and the selection of appropriate depressants and collectors in the flotation process. The findings of this study provide fundamental insights for designing optimal beneficiation processes to enhance the commercial utilization potential of low-grade graphite ores in Korea.
참고문헌 (16)
- Kim, G. J., "Electrochemical properties of natural graphite coated with PFObased pitch for lithium-ion battery anode", Korean Chemical Engineering Research, 57(5), pp.672~678 (2019)
- Luke, L., "Industrial Mineralogy: Materials, Processes, and Uses" (2002), Prentice Hall
- Acharya, B., "Processing of low grade graphite ores of Orissa", India, Miner. Eng., 9, pp.1165~1169 (1996)
- Mitchell, C., "Industrial Minerals Laboratory Manual:Flake Graphite" (1992), British Geological Survey
- Zhang, X., "Beneficiation of a Low-Grade Flaky Graphite Ore from Australia by Flotation, In Advanced Materials Research", pp.188~192 (2015), Trans Tech Publication
- GlobalData, "Global Graphite Mining to 2024 (Impact of COVID-19)", ~ (2020)
- Weng, X., "Reducing the Entrainment of Gangue Fines in Low Grade Microcrystalline Graphite Ore Flotation Using Multi-Stage Grinding-Flotation Process", Minerals, 7, pp.38~ (2017)
- Peng, W. J., "Increasing the fine flaky graphite recovery in flotation via a combined Multiple Treatments technique of middlings", Minerals, 7, pp.208~ (2017)
- Han, Y., "Flotation separation of quartz from apatite and surface forces in bubble-particle interactions: Role of pH and cationic amine collector contents", Journal of Industrial and Engineering Chemistry, 70, pp.107~115 (2019)
- Kim, S., "Laboratory testing of Scheelite flotation from raw ore in Sangdong mine for process development", Minerals, 10(11), pp.971~ (2020)
- Li, K., "Classification and carbon structural transformation from anthracite to natural coaly graphite by XRD, Raman spectroscopy, and HRTEM", Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 249, pp.119286~ (2021)
- Han, Y., "Optimized magnetic separation for efficient recovery of V and Ti enriched concentrates from vanadium-titanium magnetite ore : Effect of grinding and magnetic intensity", Powder Technoloy, 391, pp.282~291 (2021)
- Han, Y., "Magnetic separation behavior o f V, Ti, and Fe o f fractured p roducts f rom domestic vanadium titanium-magnetite (VTM) Ore", Journal of the Korean Society of Mineral and Energy Resources Engineers, 58, pp.10~16 (2021)
- Han, Y., "Crystal Structure Behavior of Vanadium-Titanium Magnetite(VTM)Ore by Planetary Ball Mill", Resources Recycling, 31(2), pp.63~69 (2022)
- Sandmann, D., "Characterisation of graphite by automated mineral liberation analysis", Mineral Processing and Extractive Metallurgy, 123(3), pp.184~189 (2014)
- Chen, Y., "Promising energystorage applications by flotation of graphite ores : A review", Chemical Engineering Journal, 454, pp.139994~ (2023)