반복영역 바로가기
주메뉴로 바로가기
본문으로 바로가기

논문목록

지질조사와 자원연구를 선도하는 한국지질자원연구원 korea institute of geoscience and mineral resouces

논문 상세정보

논문 상세정보
학회/학술지명 MINERALS 주저자 김관호
발표매체 SCI Expanded 국가명 스위스
논문명 국문 자력선별을 이용한 희토류 사광상으로부터 모나자이트 선별 연구
영문 Separation of Monazite from placer deposit by magnetic separation
발표일 2019.02.28
관련과제 북한산 희토류 자원 활용 실용화 기술개발 바로가기
초록 In this study, mineralogical analysis and beneficiation experiments were conducted using a placer deposit of North Korea, on which limited information was available, to confirm the feasibility of development. Rare earth elements (REEs) have vital applications in modern technology and are growing in importance in the fourth industrial revolution. However, the price of REEs is unstable due to the imbalance between supply and demand, and tremendous efforts are being made to produce REEs sustainably. One of them is the evaluation of new rare earth mines and the verification of their feasibility. As a result of a mineralogical analysis, in this placer deposit, monazite and some amount of xenotime were the main REE-bearing minerals. Besides these minerals, ilmenite and zircon were the target minerals to be concentrated. Using a magnetic separation method at various magnetic intensities, paramagnetic minerals, ilmenite (0.8 T magnetic product), and monazite/xenotime (1.0?1.4 T magnetic product) were recovered selectively. Using a magnetic separation result, the beneficiation process was conducted with additional gravity separation for zircon to produce a valuable mineral concentrate. The process resulted in three kinds of mineral concentrates (ilmenite, REE-bearing mineral, and zircon). The content of ilmenite increased from 32.5 to 90.9%, and the total rare earth oxide (TREO) (%) of the REE-bearing mineral concentrates reached 45.0%. The zircon concentrate, a by-product of this process, had a Zr grade of 42.8%. Consequently, it was possible to produce concentrates by combining relatively simple separation processes compared to the conventional process for rare earth placer deposit and confirmed the possibility of mine development.

목록




QUICK LINKS

  • 지질도검색
  • 지진정보
  • 지질박물관
  • 광물자원통계
  • 운석신고
  • 시험분석
  • 간행물구매
  • 전자견적
  • 입찰공고