국내부존 바나듐 티탄철광으로부터 바나듐 생산을 위한 선별기술 개발
Development of Separation Technique for the Production of Vanadium from Domestic Vanadium Titanomagnetite Ore
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초록
본 연구에서는 국내 바나듐 티탄철광(Vanadium Titanomagnetite, VTM)으로 대상으로 광물학적특성분석 및 바나듐 회수를 위한 자력선별 실험을 실시하였다. 또한 바나듐뿐만 아니라 티타늄도함께 회수하기 위한 선별 공정개발을 수행하였다. 본 연구에 사용된 원광의 품위는 V2O5 기준으로0.54%이며, 자철석 및 티탄철석이 80%이상 함유되어 있는 것으로 분석되었다. 자력선별 실험 결과, 자력의 세기 0.05 T는 품위 향상에 0.1 T는 회수율 향상에 효과적인 것을 알 수 있었다. 이를 바탕으로 자력선별공정도를 개발하여 V2O5 기준으로 품위 1%, 회수율 82.39%인 정광을 회수하였다. 또한 앞선 실험결과를 바탕으로 바나듐과 함께 티타늄도 회수 가능한 선광 공정 개발을 진행하여, 품위 1.06 V2O5%, 회수율 88.41%인 바나듐 정광과 품위 42.20 TiO2%, 회수율 73.39%인 티타늄 정광을 동시에 회수할 수 있는 공정을 개발하였다.
Abstract
This study was carried out magnetic separation experiments for vanadium recovery and mineralogical characterization on domestic Vanadium Titanomagnetite (VTM). Additionally, a beneficiation process was developed to recover not only vanadium but also titanium. The head ore used in this study was 0.54% based on V2O5, and it was analyzed that more than 80% of magnetite and ilmenite were contained. As a result of the magnetic separation, it was found that the magnetic intensity of 0.05 T is effective in improving the grade of vanadium and 0.1 T is effective in improving the recovery. Based on this, a magnetic separation process was developed to recover concentrates with a grade of 1% and a recovery of 82.39% based on V2O5. Also, based on the previous experimental results, the development of a process capable of recovering titanium as well as vanadium was developed to simultaneously recover vanadium concentrates with V2O5 grade of 1.06% and 88.41% recovery, and titanium concentrates with TiO2 grade of 42.20% and 73.39% recovery.
참고문헌 (12)
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