Development of Vanadium Recovery Process Using Reduction Pre-treatment from Vanadium Titanium-Magnetite (VTM) Ore

Byunghun Go; Dohyun Jeong; Yosep Han; Seongmin Kim; Yeoni Chu; Byung-su Kim; Ho-Seok Jeon

doi:10.7844/kirr.2022.31.2.12

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2022 Vol.31, Issue 2 Preview Page Next Page

Development of Vanadium Recovery Process Using Reduction Pre-treatment from Vanadium Titanium-Magnetite (VTM) Ore VTM광으로부터 환원 전처리를 이용한 바나듐 회수 공정 개발

30 April 2022. pp. 12-19

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Abstract

The study was conducted to develop a vanadium recovery process using reduction pre-treatment in the Vanadium TitanoMagnetite (VTM) The sample for the research was provided by the Gwan-in Mine in Pocheon, Gyeonggi-do. The vanadium content of the sample is 0.54 V₂O₅% and vanadium is concentrated mainly in magnetite and ilmenite. Magnetic separation of the sample can increase vanadium content up to 1.10 V₂O₅%. To increase the vanadium content further, reduction pre-treatment was performed, which is a process of concentrating vanadium present in the iron by reducing iron in magnetite using carbon(C). Based on this reduction pre-treatment, the magnetic separation process was developed, which achieved a vanadium grade of 1.31V₂O₅% and 79.68% recovery. In addition, XRD analysis of the vanadium concentrate before and after reduction and the final vanadium concentrate was performed to confirm the behavior of vanadium by reduction pre-treatment.

Keywords

Vanadium

VTM

Magnetic separation

Reduction

본 연구에서는 국내에 부존된 함바나듐 티탄자철석(Vanadium TitanoMagnetite, VTM)을 대상으로 환원 전처리를 이용한 바나듐 회수 공정 개발 연구를 진행하였다. 연구에 사용된 시료는 경기 포천시 관인광산에서 제공한 시료로 바나듐 품위는 0.54V₂O₅%이며, 자철석과 티탄철석이 대부분 차지하고 있는 것을 확인하였다. 단일자력선별 실험결과, 자력선별만으로는 바나듐 품위 1.10V₂O₅%대가 한계임을 확인하였다. 이를 해결하기 위하여 탄소(C)를 이용, 자철석 내에 존재하는 철을 환원시켜 철 내부에 존재하는 바나듐을 농축, 품위를 향상시키고자 하였다. 실험결과를 바탕으로 환원 전처리를 적용한 자력선별 공정을 개발하였으며 최종적으로 V₂O₅기준으로 품위 1.31%, 회수율 79.68%인 바나듐 정광을 회수할 수 있었다. 또한 환원 전과 후, 최종 바나듐 정광에 대한 XRD 분석을 실시하여 환원 전처리에 의한 바나듐의 거동을 확인하였다.

키워드

바나듐

함바나듐 티탄자철석(VTM)

자력선별

환원

References

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Information

Publisher :The Korean Institute of Resources Recycling
Publisher(Ko) :한국자원리싸이클링학회
Journal Title :Resources Recycling
Journal Title(Ko) :자원리싸이클링
Volume : 31
No :2
Pages :12-19
Received Date : 2022-01-24
Revised Date : 2022-02-10
Accepted Date : 2022-02-17
DOI :https://doi.org/10.7844/kirr.2022.31.2.12

Resources Recycling ISSN:2765-3439(Print) 2765-3447(Online) 자원리싸이클링

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