Experimental study on beneficiation of a low-grade refractory iron ore in Qinghai province

Luo Yunbo; Xiao Jinxiong; Shi Yunliang; Xie Baohua

doi:10.7513/j.issn.1004-7638.2023.05.005

Volume 44 Issue 5

Oct. 2023

Turn off MathJax

Article Contents

Article Navigation > IRON STEEL VANADIUM TITANIUM > 2023 > 44(5): 28-35

Luo Yunbo, Xiao Jinxiong, Shi Yunliang, Xie Baohua. Experimental study on beneficiation of a low-grade refractory iron ore in Qinghai province[J]. IRON STEEL VANADIUM TITANIUM, 2023, 44(5): 28-35. doi: 10.7513/j.issn.1004-7638.2023.05.005

Citation:

Luo Yunbo, Xiao Jinxiong, Shi Yunliang, Xie Baohua. Experimental study on beneficiation of a low-grade refractory iron ore in Qinghai province[J]. IRON STEEL VANADIUM TITANIUM, 2023, 44(5): 28-35. doi: 10.7513/j.issn.1004-7638.2023.05.005

Citation:

PDF( 1334 KB)

Experimental study on beneficiation of a low-grade refractory iron ore in Qinghai province

doi: 10.7513/j.issn.1004-7638.2023.05.005

Luo Yunbo^{1, 2, 3
,},
Xiao Jinxiong⁴,
Shi Yunliang⁴,
Xie Baohua^{1, 2, 3
,
,}

1.
Guangzhou Yueyouyan Mineral Resources Technology Co., Ltd., Guangzhou 510651, Guangdong, China
2.
State Key Laboratory of Separation and Comprehensive Utilization of Rare Metal, Guangzhou 510651, Guangdong, China
3.
Institute of Resource Utilization and Rare Earth Development, Guangdong Academy of Sciences, Guangzhou 510651, Guangdong, China
4.
Changsha Research Institute of Mining and Metallurgy Co., Ltd, Changsha 410012, Hunan, China

Received Date: 2023-07-14
Available Online: 2023-11-04
Publish Date: 2023-10-31

Abstract

Abstract

Aiming at the characteristics of low iron grade, fine distribution size of magnetite and complex relationship with gangue minerals of a refractory iron ore in Qinghai province, the technological process of dry throw-stage grinding and stage magnetic separation was adopted for experimental study. The main feature of this technological process is that a large amount of tailings can be discarded during dry throw-stage grinding and the subsequent grinding operation can greatly reduce the grinding amount. The results show that after four stages of grinding, iron concentrate containing TFe grade of 64.10% and TFe recovery rate of 70.45% can be obtained when the final grinding fineness of −0.025 mm is 95.15%. The recovery of the low-grade refractory iron ore is better realized. At the same time, it is analyzed that a small part of magnetite in the iron concentrate of the fourth section is mainly produced as iron-poor auxiliaries, and its composition is the main reason that it is difficult to further improve the grade of iron concentrate.
- low-grade iron ore,
- embedding granularity,
- dry discarding tailings,
- stage grinding and stage magnetic separation,
- reverse flotation

FullText(HTML)

References(10)

References

[1]	Zhao Liqun, Wang Chunnv, Zhang Min, et al. Current exploration status and supply-demand situation of iron ore resources in China mainland[J]. Geology and Exploration, 2020,56(3):635−643. (赵立群, 王春女, 张敏, 等. 中国铁矿资源勘查开发现状及供需形势分析[J]. 地质与勘探, 2020,56(3):635−643. Zhao Liqun, Wang Chunnv, Zhang Min, et al. Current exploration status and supply-demand situation of iron ore resources in China mainland[J]. Geology and Exploration, 2020, 56(03): 635-643.
[2]	Ke Jiayan, Shi Yunliang, Xiao Jinxiong et al. Mineral proccessing technique for an iron ore from Russia[J]. Mining and Metallurgical Engineering, 2019,39(6):50−53. (柯佳焱, 石云良, 肖金雄, 等. 俄罗斯某铁矿选矿工艺研究[J]. 矿冶工程, 2019,39(6):50−53. doi: 10.3969/j.issn.0253-6099.2019.06.012 Ke Jiayan, Shi Yunliang, Xiao Jinxiong et al. Mineral proccessing technique for an iron ore from Russia[J]. Mining and Metallurgical Engineering, 2019, 39(06): 50-53. doi: 10.3969/j.issn.0253-6099.2019.06.012
[3]	Yang Zhaojun, Xie Baohua, Zhong Senlin, et al. Experimental study on mineralogy and beneficiation of an iron ore from Australia[J]. Iron Steel Vanadium Titanium, 2022,43(6):115−120,137. (杨招君, 谢宝华, 钟森林, 等. 澳大利亚某铁矿工艺矿物学及选矿试验研究[J]. 钢铁钒钛, 2022,43(6):115−120,137. Yang Zhaojun, Xie Baohua, Zhong Senlin, et al. Experimental study on mineralogy and beneficiation of an iron ore from Australia [J]. Iron Steel Vanadium Titanium, 2022, 43(06): 115-120+137.
[4]	Ouyang Linli. Mineral processing test of a low-grade fine-graine iron ore in Shandong[J]. Sintering and Pelletizing, 2022,47(2):81−87,95. (欧阳林莉. 山东某低品位微细粒铁矿选矿试验[J]. 烧结球团, 2022,47(2):81−87,95. Ouyang Linli. Mineral processing test of a low-grade fine-graine iron ore in Shandong [J]. Sintering and Pelletizing, 2022, 47(02): 81-87+95.
[5]	Huang Wusheng, Yuan Qidong, Lin Xiaofeng, et al. Experimental study on beneficiation of a foreign hematite ore[J]. Modern Mining, 2021,37(11):125−129. (黄武胜, 袁启东, 林小凤, 等. 国外某赤褐铁矿选矿试验研究[J]. 现代矿业, 2021,37(11):125−129. doi: 10.3969/j.issn.1674-6082.2021.11.033 Huang Wusheng, Yuan Qidong, Lin Xiaofeng, et al. Experimental study on beneficiation of a foreign hematite ore [J]. Modern Mining, 2021, 37(11): 125-129. doi: 10.3969/j.issn.1674-6082.2021.11.033
[6]	Xiao Wanqin, Zhu Yangge, Hu Xiaoxing, et al. Experimental study on beneficiation of a refractory iron ore with high alumina and silicon[J]. Nonferrous Metals (Mineral Processing Section), 2022,(1):109−114. (肖婉琴, 朱阳戈, 胡晓星, 等. 某高铝高硅难选铁矿选矿试验研究[J]. 有色金属(选矿部分), 2022,(1):109−114. Xiao Wanqin, Zhu Yangge, Hu Xiaoxing, et al. Experimental study on beneficiation of a refractory iron ore with high alumina and silicon [J]. Nonferrous Metals (Mineral Processing Section), 2022(01): 109-114.
[7]	Jiao Kecheng. Beneficiation process for an overseas high phosphorus-silicon oolitic iron ore[J]. Mining and Metallurgical Engineering, 2018,38(4):65−68. (焦科诚. 国外某高磷硅鲕状铁矿选矿工艺研究[J]. 矿冶工程, 2018,38(4):65−68. doi: 10.3969/j.issn.0253-6099.2018.04.016 Jiao Kecheng. Beneficiation process for an overseas high phosphorus-silicon oolitic iron ore[J]. Mining and Metallurgical Engineering, 2018, 38(04): 65-68. doi: 10.3969/j.issn.0253-6099.2018.04.016
[8]	Wu Peng, Guo Shunlei, Li Teng. Exploratory test of beneficiation of an iron ore in Hami, Xinjiang[J]. Modern Mining, 2020,36(7):139−141. (吴鹏, 郭顺磊, 李腾. 新疆哈密某铁矿石选矿探索试验[J]. 现代矿业, 2020,36(7):139−141. Wu Peng, Guo Shunlei, Li Teng. Exploratory test of beneficiation of an iron ore in Hami, Xinjiang [J]. Modern Mining, 2020, 36(07): 139-141.
[9]	Xiao Qifei, Shi Yunliang, Liu Jun. Study on new technology and process of ore dressing in Beishan site of Nanfen open pit iron mine[J]. Modern Mining, 2019,35(9):121−125. (肖启飞, 石云良, 刘军. 南芬露天铁矿北山部位矿石选矿新技术及工艺试验[J]. 现代矿业, 2019,35(9):121−125. doi: 10.3969/j.issn.1674-6082.2019.09.035 Xiao Qifei, Shi Yunliang, Liu Jun. Study on New Technology and Process of Ore Dressing in Beishan site of Nanfen Open Pit Iron Mine[J]. Modern Mining, 2019, 35(09): 121-125. doi: 10.3969/j.issn.1674-6082.2019.09.035
[10]	Yang Xuanxing. Interference of magnetic coagulation in magnetic separation of Miaogou iron mine and its emeasures for its elimination[J]. Metal Mine, 1995,(9):46−48. (杨宣兴. 庙沟铁矿磁选过程中磁团聚干扰及消除措施[J]. 金属矿山, 1995,(9):46−48. Yang Xuanxing. Interference of magnetic coagulation in magnetic separation of Miaogou iron mine and its emeasures for its elimination[J]. Metal Mine, 1995(9): 46-48.