Optimized magnetic separation for efficient recovery of V and Ti enriched concentrates from vanadium-titanium magnetite ore: Effect of grinding and magnetic intensity

被引：29

作者：

Han, Yosep ^{[1
,2
]}

Kim, Seongmin ^{[1
]}

Go, Byunghun ^{[1
]}

Lee, Sujeong ^{[1
,2
]}

Park, Seongkyun ^{[3
]}

Jeon, Ho-Seok ^{[1
,2
]}

机构：

[1] Korea Inst Geosci & Mineral Resources KIGAM, Mineral Resources Div, Resources Recovery Res Ctr, 124 Gwahak Ro, Daejeon 34132, South Korea

[2] Univ Sci & Technol UST, Dept Resources Recycling, 217 Gajeong Ro, Daejeon 34113, South Korea

[3] Bruker AXS Korea, 338 Pangyo Ro, Seongnam Si 13493, Gyeonggi Do, South Korea

来源：

POWDER TECHNOLOGY | 2021年 / 391卷 / 391期

关键词：

Vanadium-titanium magnetite; Vanadium; Titanium; Grinding; Magnetic separation; STONE COAL; IRON; TITANOMAGNETITE; FLOTATION; TECHNOLOGY; EXTRACTION; REDUCTION; ACID; MINE;

D O I：

10.1016/j.powtec.2021.06.024

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

We present an optimized magnetic separation process to improve the recovery of high-content vanadium and titanium concentrates from vanadium-titanium magnetite (VTM) ore. The ore chunks were crushed using jaw crushers and then grinded in a laboratory rod mill for different grinding times and studied. Vanadium recovery was dependent on maximizing magnetite and ilmenite recovery. Ilmenite, which is the main source for titanium, existed in the stripes within magnetite; it got pulverized first during milling and remained as relatively coarse particles of magnetite. A grinding time of 15 min was determined as optimum for the grinding conditions of this study, based on the degree of liberation, the grade, and recovery of vanadium. The effect of varying magnetic intensities on the separation behavior of the pre-concentrates was analyzed through magnetic separation of the ground VTM samples. The grade and recovery attained for the vanadium concentrates were 1.12% and 63%, respectively. In addition to vanadium, titanium concentrates were also obtained by medium-intensity magnetic separation and the grade and recovery were 38% and 75%, respectively. (c) 2021 Elsevier B.V. All rights reserved.

引用

页码：282 / 291

页数：10

共 48 条

[1] The oxidation state of vanadium in titanomagnetite from layered basic intrusions [J].