Research Progress on the Effects of Reducing Agents and Dephosphorization Agents on Direct Reduction-Magnetic Separation of High Phosphorus Oolitic Hematite

XU Hongda; SUN Tichang; WU Shichao; LIAN Xiaoxiao; HAN Wenli; DENG Zongyi

doi:10.3969/j.issn.1000-6532.2024.02.029

2024 No. 2

Article Contents

Article navigation > Multipurpose Utilization of Mineral Resources > 2024 > 45(2): 176-184

Next Article Previous Article

XU Hongda, SUN Tichang, WU Shichao, LIAN Xiaoxiao, HAN Wenli, DENG Zongyi. Research Progress on the Effects of Reducing Agents and Dephosphorization Agents on Direct Reduction-Magnetic Separation of High Phosphorus Oolitic Hematite[J]. Multipurpose Utilization of Mineral Resources, 2024, 45(2): 176-184. doi: 10.3969/j.issn.1000-6532.2024.02.029

Citation:

XU Hongda, SUN Tichang, WU Shichao, LIAN Xiaoxiao, HAN Wenli, DENG Zongyi. Research Progress on the Effects of Reducing Agents and Dephosphorization Agents on Direct Reduction-Magnetic Separation of High Phosphorus Oolitic Hematite[J]. Multipurpose Utilization of Mineral Resources, 2024, 45(2): 176-184. doi: 10.3969/j.issn.1000-6532.2024.02.029

Research Progress on the Effects of Reducing Agents and Dephosphorization Agents on Direct Reduction-Magnetic Separation of High Phosphorus Oolitic Hematite

School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, China

More Information

Corresponding author: SUN Tichang, untc@ces.ustb.edu.cn

Received Date: 01 July 2022

Publish Date: 25 April 2024

Abstract

Abstract

This is an article in the field of mining engineering. The effects of reducing agent and dephosphorization agent on the direct reduction of high phosphorus oolitic hematite were reviewed. The research status of the influence of reducing agents on the reduction of high-phosphorus oolitic hematite was summarized from two aspects of coal and other reducing agents, and the research progress of dephosphorizers was summarized from two ways of using single and combined dephosphorizers. The problems existing in the direct reduction-magnetic separation process of high-phosphorus oolitic hematite were pointed out. According to the existing problems, suggestions for the future research direction of direct reduction-magnetic separation of high-phosphorus oolitic hematite were put forward.
- Mining engineering /
- Reducing agent /
- Dephosphorization agent /
- High phosphorus oolitic hematite /
- Direct reduction-magnetic separation

FullText(HTML)

References

[1]	Wu J, Wen Z J, Cen M J. Development of technologies for high phosphorus oolitic hematite utilization[J]. Steel Research International, 2011, 82(5):494-500. doi: 10.1002/srin.201100040 CrossRef Google Scholar
[2]	李国峰, 韩跃新, 高鹏, 等. 高磷鲕状赤铁矿深度还原过程中磷在金属相富集热力学研究[J]. 矿产综合利用, 2019(2):152-158.LI G F, HAN Y X, GAO P, et al. Thermodynamic study of phosphorus in metallic phase during coal-based reduction of high phosphorus oolitic hematite ore[J]. Multipurpose Utilization of Mineral Resources, 2019(2):152-158. doi: 10.3969/j.issn.1000-6532.2019.02.032 CrossRef Google Scholar LI G F, HAN Y X, GAO P, et al. Thermodynamic study of phosphorus in metallic phase during coal-based reduction of high phosphorus oolitic hematite ore[J]. Multipurpose Utilization of Mineral Resources, 2019(2):152-158. doi: 10.3969/j.issn.1000-6532.2019.02.032 CrossRef Google Scholar
[3]	孟凡东. 鄂西鲕状赤铁矿还原焙烧-磁选工艺及机理研究[D]. 武汉: 武汉理工大学, 2012.MENG F D. Reductive roasting of oolitic hematite in western Hubei-a study on the process and mechanism of magnetic separation[D]. Wuhan: Wuhan University of Technology, 2012. Google Scholar MENG F D. Reductive roasting of oolitic hematite in western Hubei-a study on the process and mechanism of magnetic separation[D]. Wuhan: Wuhan University of Technology, 2012. Google Scholar
[4]	李艳军, 袁帅, 刘杰, 等. 湖北某高磷鲕状赤铁矿磁化焙烧-磁选-反浮选试验研究[J]. 矿冶, 2015, 24(1):1-5.LI Y J, YUAN S, LIU J, et al. Study on magnetizing roasting-magnetic separation-reverse flotation of a high-phosphorus oolitic hematite ore in Hubei[J]. Mining and Metallurgy, 2015, 24(1):1-5. doi: 10.3969/j.issn.1005-7854.2015.01.001 CrossRef Google Scholar LI Y J, YUAN S, LIU J, et al. Study on magnetizing roasting-magnetic separation-reverse flotation of a high-phosphorus oolitic hematite ore in Hubei[J]. Mining and Metallurgy, 2015, 24(1):1-5. doi: 10.3969/j.issn.1005-7854.2015.01.001 CrossRef Google Scholar
[5]	袁帅, 刘杰, 张淑敏, 等. 某悬浮焙烧-磁选铁精矿的浮选脱磷试验[J]. 金属矿山, 2018(5):72-75.YUAN S, LIU J, ZHANG S M, et al. Research on flotation dephosphorization of iron concentrate from suspended roasting-magnetic separation[J]. Metal Mine, 2018(5):72-75. Google Scholar YUAN S, LIU J, ZHANG S M, et al. Research on flotation dephosphorization of iron concentrate from suspended roasting-magnetic separation[J]. Metal Mine, 2018(5):72-75. Google Scholar
[6]	Lei Guo, Jintao Gao, Yiwei Zhong, et al. Phosphorus removal of high phosphorous oolitic iron ore with acid-leaching fluidized-reduction and melt-separation process[J]. ISIJ International, 2015, 55(9):1806-1815. doi: 10.2355/isijinternational.ISIJINT-2015-135 CrossRef Google Scholar
[7]	Wang H H, Li G Q, Zhao D, et al. Dephosphorization of high phosphorus oolitic hematite by acid leaching and the leaching kinetics[J]. Hydrometallurgy, 2017, 171:61-68. doi: 10.1016/j.hydromet.2017.04.015 CrossRef Google Scholar
[8]	肖敏, 邱小英, 蓝桥发. 高磷鲕状赤铁矿金属化还原焙烧-磁选-熔分新工艺研究[J]. 矿产综合利用, 2020(5):101-114.XIAO M, QIU X Y, LAN Q F. Study on the new technology of reduction roasting, magnetic separation and melting of high phosphorus oolitic hematite[J]. Multipurpose Utilization of Mineral Resources, 2020(5):101-114. doi: 10.3969/j.issn.1000-6532.2020.05.014 CrossRef Google Scholar XIAO M, QIU X Y, LAN Q F. Study on the new technology of reduction roasting, magnetic separation and melting of high phosphorus oolitic hematite[J]. Multipurpose Utilization of Mineral Resources, 2020(5):101-114. doi: 10.3969/j.issn.1000-6532.2020.05.014 CrossRef Google Scholar
[9]	宋赞, 李相帅, 查春和. 我国直接还原铁工艺的发展现状及趋势[J]. 冶金管理, 2020(16):22-24.SONG Z, LI X S, ZHA C H. Development status and trend of direct reduced iron technology in China[J]. China Steel Focus, 2020(16):22-24. Google Scholar SONG Z, LI X S, ZHA C H. Development status and trend of direct reduced iron technology in China[J]. China Steel Focus, 2020(16):22-24. Google Scholar
[10]	徐承焱, 孙体昌, 寇珏, 等. 还原剂对高磷鲕状赤铁矿还原焙烧铁磷分离的影响[J]. 工程科学学报, 2016, 38(1):26-33.XU C Y, SUN T C, KOU J, et al. Effects of reductants on the reduction roasting and Fe-P separation of high phosphorus oolitic hematite[J]. Chinese Journal of Engineering, 2016, 38(1):26-33. Google Scholar XU C Y, SUN T C, KOU J, et al. Effects of reductants on the reduction roasting and Fe-P separation of high phosphorus oolitic hematite[J]. Chinese Journal of Engineering, 2016, 38(1):26-33. Google Scholar
[11]	李永利, 孙体昌, 徐承焱. 还原剂种类对高磷鲕状赤铁矿直接还原提铁降磷的影响[J]. 矿冶工程, 2012, 32(4):66-69.LI Y L, SUN T C, XU C Y. Effects of reductant types on direct reduction and phosphorus removal of high-phosphorus oolitic hematite ore[J]. Mining and Metallurgical Engineering, 2012, 32(4):66-69. doi: 10.3969/j.issn.0253-6099.2012.04.018 CrossRef Google Scholar LI Y L, SUN T C, XU C Y. Effects of reductant types on direct reduction and phosphorus removal of high-phosphorus oolitic hematite ore[J]. Mining and Metallurgical Engineering, 2012, 32(4):66-69. doi: 10.3969/j.issn.0253-6099.2012.04.018 CrossRef Google Scholar
[12]	徐承焱, 孙体昌, 祁超英, 等. 煤种对高磷鲕状赤铁矿直接还原同步脱磷的影响[J]. 金属矿山, 2010(8):46-50.XU C Y, SUN T C, QI C Y, et al. Effects of coal types on direct reduction and dephosphorization synchronously of high-phosphorus oolitic hematite[J]. Metal Mine, 2010(8):46-50. Google Scholar XU C Y, SUN T C, QI C Y, et al. Effects of coal types on direct reduction and dephosphorization synchronously of high-phosphorus oolitic hematite[J]. Metal Mine, 2010(8):46-50. Google Scholar
[13]	徐承焱, 孙体昌, 祁超英, 等. 还原剂对高磷鲕状赤铁矿直接还原同步脱磷的影响[J]. 中国有色金属学报, 2011, 21(3):680-686.XU C Y, SUN T C, QI C Y, et al. Effects of reductants on direct reduction and synchronous dephosphorization of high-phosphorous oolitic hematite[J]. The Chinese Journal of Nonferrous Metals, 2011, 21(3):680-686. Google Scholar XU C Y, SUN T C, QI C Y, et al. Effects of reductants on direct reduction and synchronous dephosphorization of high-phosphorous oolitic hematite[J]. The Chinese Journal of Nonferrous Metals, 2011, 21(3):680-686. Google Scholar
[14]	曹允业, 孙体昌, 高恩霞, 等. 煤的挥发分对高磷鲕状赤铁矿直接还原焙烧的影响[J]. 东北大学学报(自然科学版), 2014, 35(9):1346-1349.CAO Y Y, SUN T C, GAO E X, et al. Effects of volatile component in coal on high-phosphorus oolitic hematite in direct reduction roasting process[J]. Journal of Northeastern University(Natural Science), 2014, 35(9):1346-1349. doi: 10.3969/j.issn.1005-3026.2014.09.029 CrossRef Google Scholar CAO Y Y, SUN T C, GAO E X, et al. Effects of volatile component in coal on high-phosphorus oolitic hematite in direct reduction roasting process[J]. Journal of Northeastern University(Natural Science), 2014, 35(9):1346-1349. doi: 10.3969/j.issn.1005-3026.2014.09.029 CrossRef Google Scholar
[15]	Wen Yu, Tichang Sun, Qiang Cui, et al. Effect of coal type on the reduction and magnetic separation of a high-phosphorus oolitic hematite ore[J]. ISIJ International, 2015, 55(3). Google Scholar
[16]	Dong-bo Huang, Yan-bing Zong, Ru-fei Wei, et al. Direct reduction of high-phosphorus oolitic hematite ore based on biomass pyrolysis[J]. Journal of Iron and Steel Research International, 2016, 23(9). Google Scholar
[17]	Hui-qing Tang, Yan-qi Qin, Teng-fei Qi, et al. Application of wood char in processing oolitic high-phosphorus hematite for phosphorus removal[J]. Journal of Iron and Steel Research International, 2016, 23(2). Google Scholar
[18]	唐惠庆, 范立强, 马龙, 等. 生物质木炭用于鲕状高磷铁矿除磷[J]. 北京科技大学学报, 2014, 36(7):867-874.TANG H Q, FAN L Q, MA L, et al. Phosphorus removal of oolitic high-phosphorus iron ore using biomass char[J]. Journal of University of Science and Technology Beijing, 2014, 36(7):867-874. Google Scholar TANG H Q, FAN L Q, MA L, et al. Phosphorus removal of oolitic high-phosphorus iron ore using biomass char[J]. Journal of University of Science and Technology Beijing, 2014, 36(7):867-874. Google Scholar
[19]	H TANG, X FU, Y Qin, et al. Iron recovery and phosphorus removal from oolitic high-phosphorus haematite using the FASTMELT® process: a comparative study of two reductants[J]. Journal of the Southern African Institute of Mining and Metallurgy, 2017, 117(4). Google Scholar
[20]	Yun-ye Cao, Dong-ping Duan, E. Zhou, et al. The function of blast furnace dust as reductant on simultaneous reduction of high-phosphorus oolitic hematite[J]. Ironmaking & Steelmaking, 2020, 47(5). Google Scholar
[21]	曹允业. 煤泥和高炉灰在高磷鲕状赤铁矿直接还原中的作用及机理[D]. 北京: 北京科技大学, 2017.CAO Y Y. Role and mechanism of coal slime and blast furnace dust in direct reduction of high phosphorus oolitic hematite[D]. Beijing: University of Science and Technology Beijing, 2017. Google Scholar CAO Y Y. Role and mechanism of coal slime and blast furnace dust in direct reduction of high phosphorus oolitic hematite[D]. Beijing: University of Science and Technology Beijing, 2017. Google Scholar
[22]	曹允业, 孙体昌, 寇珏, 等. 高炉灰与高磷鲕状赤铁矿共还原回收铁的研究[J]. 金属矿山, 2015(10):67-70.CAO Y Y, SUN T C, KOU J, et al. Research on recovery of iron from blast furnace dust and high phosphorus oolitic hematite by coreduction roasting[J]. Metal Mine, 2015(10):67-70. doi: 10.3969/j.issn.1001-1250.2015.10.015 CrossRef Google Scholar CAO Y Y, SUN T C, KOU J, et al. Research on recovery of iron from blast furnace dust and high phosphorus oolitic hematite by coreduction roasting[J]. Metal Mine, 2015(10):67-70. doi: 10.3969/j.issn.1001-1250.2015.10.015 CrossRef Google Scholar
[23]	郭园征. 高磷铁矿球团焙烧脱磷机理研究[D]. 唐山: 华北理工大学, 2020.GUO Y Z. Study on dephosphorization mechanism of highphosphorite pellets by roasting[D]. Tangshan: North China University of Science and Technology, 2020. Google Scholar GUO Y Z. Study on dephosphorization mechanism of highphosphorite pellets by roasting[D]. Tangshan: North China University of Science and Technology, 2020. Google Scholar
[24]	孙体昌, 祁超英, 杨慧芬, 等. 高磷鲕状赤铁矿还原焙烧同步脱磷工艺研究[A]. 复杂难处理矿石选矿技术—全国选矿学术会议论文集[C]. 中国有色金属学会, 2009: 3.SUN T C, QI C Y, YANG H F, et al. Research on simultaneous dephosphorization process of high phosphorus oolitic hematite by reduction roasting[A]. Complex refractory ore beneficiation technology—Proceedings of the National Conference on Mineral Processing [C]. The Nonferrous Metals Society of China, Nfsoc, 2009: 3. Google Scholar SUN T C, QI C Y, YANG H F, et al. Research on simultaneous dephosphorization process of high phosphorus oolitic hematite by reduction roasting[A]. Complex refractory ore beneficiation technology—Proceedings of the National Conference on Mineral Processing [C]. The Nonferrous Metals Society of China, Nfsoc, 2009: 3. Google Scholar
[25]	吴世超, 孙体昌, 杨慧芬. 国外某高磷鲕状赤铁矿直接还原—磁选降磷研究[J]. 金属矿山, 2019(11):109-114.WU S C, SUN T C, YANG H F. Study on phosphorus removal of high-phosphorus oolitic hematite abroad by direct reduction and magnetic separation[J]. Metal Mine, 2019(11):109-114. Google Scholar WU S C, SUN T C, YANG H F. Study on phosphorus removal of high-phosphorus oolitic hematite abroad by direct reduction and magnetic separation[J]. Metal Mine, 2019(11):109-114. Google Scholar
[26]	Zhao Y Q, Sun T C, Zhao H Y, et al. Effects of CaCO₃ as additive on coal-based reduction of high-phosphorus oolitic hematite ore[J]. ISIJ International, 2018, 58(10):1768-1774. doi: 10.2355/isijinternational.ISIJINT-2018-186 CrossRef Google Scholar
[27]	杨大伟, 孙体昌, 徐承焱, 等. 鄂西某高磷鲕状赤铁矿提铁降磷选矿试验研究[J]. 金属矿山, 2009(10):81-83.YANG D W, SUN T C, XU C Y, et al. Beneficiation test on iron increase and phosphorous reduction of a high-phosphorus oolitic hematite in Western Hubei[J]. Metal Mine, 2009(10):81-83. doi: 10.3321/j.issn:1001-1250.2009.10.021 CrossRef Google Scholar YANG D W, SUN T C, XU C Y, et al. Beneficiation test on iron increase and phosphorous reduction of a high-phosphorus oolitic hematite in Western Hubei[J]. Metal Mine, 2009(10):81-83. doi: 10.3321/j.issn:1001-1250.2009.10.021 CrossRef Google Scholar
[28]	杨大伟, 孙体昌, 徐承焱. 高磷鲕状赤铁矿还原焙烧同步脱磷工艺研究[J]. 矿冶工程, 2010, 30(1):29-31.YANG D W, SUN T C, XU C Y. Reducing roasting and a synchronized dephosphorization of a high-phosphorus oolite hematite[J]. Mining and Metallurgical Engineering, 2010, 30(1):29-31. doi: 10.3969/j.issn.0253-6099.2010.01.008 CrossRef Google Scholar YANG D W, SUN T C, XU C Y. Reducing roasting and a synchronized dephosphorization of a high-phosphorus oolite hematite[J]. Mining and Metallurgical Engineering, 2010, 30(1):29-31. doi: 10.3969/j.issn.0253-6099.2010.01.008 CrossRef Google Scholar
[29]	杨大伟, 孙体昌, 杨慧芬, 等. 鄂西高磷鲕状赤铁矿直接还原焙烧同步脱磷机理[J]. 北京科技大学学报, 2010, 32(8):968-974.YANG D W, SUN T C, YANG H F, et al. Dephosphorization mechanism in a roasting process for direct reduction of high-phosphorus oolitic hematite in west Hubei Province, China[J]. Journal of University of Science and Technology Beijing, 2010, 32(8):968-974. Google Scholar YANG D W, SUN T C, YANG H F, et al. Dephosphorization mechanism in a roasting process for direct reduction of high-phosphorus oolitic hematite in west Hubei Province, China[J]. Journal of University of Science and Technology Beijing, 2010, 32(8):968-974. Google Scholar
[30]	许言, 孙体昌, 刘志国, 等. 某高磷鲕状赤铁矿磷赋存状态及还原焙烧脱磷研究[J]. 东北大学学报(自然科学版), 2013, 34(11):1651-1655.XU Y, SUN T C, LIU Z G, et al. Phosphorus occurrence state and phosphorus removal research of a high phosphorous oolitic hematite by direct reduction roasting method[J]. Journal of Northeastern University(Natural Science), 2013, 34(11):1651-1655. doi: 10.12068/j.issn.1005-3026.2013.11.031 CrossRef Google Scholar XU Y, SUN T C, LIU Z G, et al. Phosphorus occurrence state and phosphorus removal research of a high phosphorous oolitic hematite by direct reduction roasting method[J]. Journal of Northeastern University(Natural Science), 2013, 34(11):1651-1655. doi: 10.12068/j.issn.1005-3026.2013.11.031 CrossRef Google Scholar
[31]	许言, 孙体昌, 刘志国, 等. 碳酸钠在高磷鲕状赤铁矿直接还原中的作用[J]. 东北大学学报(自然科学版), 2014, 35(7):1028-1032.XU Y, SUN T C, LIU Z G, et al. Dephosphorization effect of sodium carbonate in the process of direct reduction roasting of high phosphorous oolitic hematite[J]. Journal of Northeastern University(Natural Science), 2014, 35(7):1028-1032. doi: 10.3969/j.issn.1005-3026.2014.07.026 CrossRef Google Scholar XU Y, SUN T C, LIU Z G, et al. Dephosphorization effect of sodium carbonate in the process of direct reduction roasting of high phosphorous oolitic hematite[J]. Journal of Northeastern University(Natural Science), 2014, 35(7):1028-1032. doi: 10.3969/j.issn.1005-3026.2014.07.026 CrossRef Google Scholar
[32]	许言, 孙体昌, 杨志超, 等. 尼日利亚某高磷铁矿石工艺矿物学研究[J]. 中国矿业, 2012, 21(4):89-93.XU Y, SUN T C, YANG Z C, et al. Process mineralogy study on some high phosphorous iron ore in Nigeria[J]. China Mining Magazine, 2012, 21(4):89-93. doi: 10.3969/j.issn.1004-4051.2012.04.022 CrossRef Google Scholar XU Y, SUN T C, YANG Z C, et al. Process mineralogy study on some high phosphorous iron ore in Nigeria[J]. China Mining Magazine, 2012, 21(4):89-93. doi: 10.3969/j.issn.1004-4051.2012.04.022 CrossRef Google Scholar
[33]	Metals Research-Metallurgy; New Findings from Northeastern University in Metallurgy Provides New Insights (Strengthening iron enrichment and dephosphorization of high-phosphorus oolitic hematite using high-temperature pretreatment)[J]. Mining & Minerals, 2020. Google Scholar
[34]	Mingjun Rao, Chongzhong Ouyang, Guanghui Li, et al. Behavior of phosphorus during the carbothermic reduction of phosphorus-rich oolitic hematite ore in the presence of Na₂SO₄[J]. International Journal of Mineral Processing, 2015, 143. Google Scholar
[35]	Guanghui Li, Shuhui Zhang, Mingjun Rao, et al. Effects of sodium salts on reduction roasting and Fe–P separation of high-phosphorus oolitic hematite ore[J]. International Journal of Mineral Processing, 2013, 124. Google Scholar
[36]	Wen Yu, Tichang Sun, Qiang Cui. Can sodium sulfate be used as an additive for the reduction roasting of high-phosphorus oolitic hematite ore[J]. International Journal of Mineral Processing, 2014, 133. Google Scholar
[37]	Yongli Li, Tichang Sun, Jue Kou, et al. Study on phosphorus removal of high-phosphorus oolitic hematite by coal-based direct reduction and magnetic separation[J]. Mineral Processing and Extractive Metallurgy Review, 2014, 35(1). Google Scholar
[38]	Li Y L, Sun T C, Zou A H, et al. The effect of coal levels during direct reduction roasting of high phosphorus oolitic hematite in a tunnel kiln[J]. Internatioal Journal of Minining Science and Technology, 2012, 22(3):323-328. doi: 10.1016/j.ijmst.2012.04.007 CrossRef Google Scholar
[39]	李永利, 孙体昌, 徐承焱, 等. 高磷鲕状赤铁矿直接还原同步脱磷新脱磷剂[J]. 中南大学学报(自然科学版), 2012, 43(3):827-834.LI Y L, SUN T C, XU C Y, et al. New dephosphorizing agent for phosphorus removal from high-phosphorus oolitic hematite ore in direct reduction roasting[J]. Journal of Central South University, 2012, 43(3):827-834. Google Scholar LI Y L, SUN T C, XU C Y, et al. New dephosphorizing agent for phosphorus removal from high-phosphorus oolitic hematite ore in direct reduction roasting[J]. Journal of Central South University, 2012, 43(3):827-834. Google Scholar
[40]	李永利, 孙体昌, 杨慧芬, 等. 高磷鲕状赤铁矿直接还原同步脱磷研究[J]. 矿冶工程, 2011, 31(2):68-70.LI Y L, SUN T C, YANG H F, et al. Study of direct reduction and synchronous dephosphorization for high-phosphorus oolitic hematite[J]. Mining and Metallurgical Engineering, 2011, 31(2):68-70. doi: 10.3969/j.issn.0253-6099.2011.02.019 CrossRef Google Scholar LI Y L, SUN T C, YANG H F, et al. Study of direct reduction and synchronous dephosphorization for high-phosphorus oolitic hematite[J]. Mining and Metallurgical Engineering, 2011, 31(2):68-70. doi: 10.3969/j.issn.0253-6099.2011.02.019 CrossRef Google Scholar
[41]	Cheng-yan XU, Ti-chang SUN, Jue KOU, et al. Mechanism of phosphorus removal in beneficiation of high phosphorous oolitic hematite by direct reduction roasting with dephosphorization agent[J]. Transactions of Nonferrous Metals Society of China, 2012, 22(11). Google Scholar
[42]	Hongliang Han, Dongping Duan, Xing Wang, et al. Innovative method for separating phosphorus and iron from high-phosphorus oolitic hematite by iron nugget process[J]. Metallurgical and Materials Transactions B, 2014, 45(5). Google Scholar
[43]	Han, Duan, Yuan, et al. Recovery of metallic iron from high phosphorus oolitic hematite by carbothermic reduction and magnetic separation[J]. Ironmaking & Steelmaking, 2015, 42(7). Google Scholar
[44]	Yu W, Sun T C, Kou J, et al. The function of Ca(OH)₂ and Na₂CO₃ as additive on the reduction of high-phosphorus oolitic hematite-coal mixed pellets[J]. ISIJ international, 2013, 53(3):427-433. doi: 10.2355/isijinternational.53.427 CrossRef Google Scholar
[45]	Yunye Cao, Tichang Sun, Jue Kou, et al. Effect of Na₂CO₃ and CaCO₃ on coreduction roasting of blast furnace dust and high-phosphorus oolitic hematite[J]. Journal of Wuhan University of Technology-Mater. Sci. Ed. , 2017, 32(3). Google Scholar
[46]	Wen Yu, Qiong-yao Tang, Jiang-an Chen, et al. Thermodynamic analysis of the carbothermic reduction of a high-phosphorus oolitic iron ore by FactSage[J]. International Journal of Minerals Metallurgy and Materials, 2016, 23(10):1126-1132. doi: 10.1007/s12613-016-1331-z CrossRef Google Scholar
[47]	栗艳锋, 韩跃新, 孙永升, 等. CaO和Na₂CO₃用量对高磷鲕状赤铁矿石深度还原分选的影响[J]. 金属矿山, 2019(2):54-59.LI Y F, HAN Y X, SUN Y S, et al. Effects of CaO and Na₂CO₃ dosage on beneficiation during coal-based reduction of high-phosphorus oolitic hematite Ore[J]. Metal Mine, 2019(2):54-59. Google Scholar LI Y F, HAN Y X, SUN Y S, et al. Effects of CaO and Na₂CO₃ dosage on beneficiation during coal-based reduction of high-phosphorus oolitic hematite Ore[J]. Metal Mine, 2019(2):54-59. Google Scholar