|
|
|
| Direct Reduction and Magnetic Separating Experiment of Nickel Slag for Iron Recovery |
| LU Feng-lin 1，GUO Yu-hua 2，ZHANG Ying-yi 2，GAO Jian-jun2 |
（1. Jiuquan Iron and Steel Group Co.， Ltd.， Jiayuguan 735100， Gansu， China
2. State Key Laboratory of Advanced Steel Processes and Products，Central Iron and Steel Research Institute， Beijing 100081） |
|
|
|
|
Abstract Direct reduction experiment and magnetic separating were carried out by using carbon-bearing pellets which were compacted by nickel slag and coal．The effects of different reduced temperatures，different C/O in pellets and basicity to the reduction results were investigated．The results show that the metallization degree can reach 98.72% when the direct reduction conditions are C/O in pellet 1.2，basicity 0.5，reduced temperature 1300℃ and time 20min．In 90min grinding metalized pellets getting under above conditions，the proportions of less than 0.074 mm powder reached from 95.6% to 46.9%，the TFe content of concentrate reduced from 78.82% to 74.01%，magnetic separating rate and recovery rate of iron increased from 51.77% and 79.02% to 70.92% and 89.80% respectively．The laboratory results show that it is feasible in process recycling iron resources in nickel slag by direct reduction and magnetic separating of carbon-bearing pellet．
|
|
Received: 16 August 2013
Published: 20 February 2014
|
|
|
|
|
郝文义. 金川冶炼弃渣综合利用研究钢铁冶金部分试验初步小结[J].甘肃冶金, 1995, 2:22-27.王亚力，倪文，马明生等. 金川镍渣熔融炼铁及熔渣制备微晶玻璃的研究[J].矿产保护与利用, 2008, (2):55-58.刘伟波.金川炼镍渣提铁的研究[D] .北京：西安建筑科技大学, 2001.卢学峰，南雪丽，郭鑫. 利用镍渣冶炼回收硅钙合金的研究[J].矿产保护与利用, 2009, (2): 55-58.白彦贵，朱果灵，张柏汀. 金川提镍弃渣提铁基础研究[J]. 钢铁研究学报. 1994(S1)倪文，马明生，王亚力等. 熔融还原法镍渣炼铁的热力学与动力学[J] .北京科技大学学报, 2009, 32(2):163-168.王晓民编译. 俄罗斯有色金属矿冶废料的综合利用[J].世界有色金属, 2009, (3):72-75.赵思佳，楚广，杨天足等. 从含镍废料中回收镍等有价金属研究进展[J].湿法冶金, 2008, 28(2):72-75.周琦，南雪丽，易育强等. 镍渣微晶玻璃制备及铁的回收利用[J].兰州理工大学学报, 2010, 36(5):14-18.卢学峰，南雪丽，郭鑫等. 利用废渣冶炼回收硅铁的研究[J].铸造技术, 2008, 29(12):1689-1691.刘宏雄. 关于镍渣提铁生产的高温热能利用的探讨[J].能源工程, 2007, (6):54-56.
|
|
郝文义. 金川冶炼弃渣综合利用研究钢铁冶金部分试验初步小结[J].甘肃冶金, 1995, 2:22-27.王亚力，倪文，马明生等. 金川镍渣熔融炼铁及熔渣制备微晶玻璃的研究[J].矿产保护与利用, 2008, (2):55-58.刘伟波.金川炼镍渣提铁的研究[D] .北京：西安建筑科技大学, 2001.卢学峰，南雪丽，郭鑫. 利用镍渣冶炼回收硅钙合金的研究[J].矿产保护与利用, 2009, (2): 55-58.白彦贵，朱果灵，张柏汀. 金川提镍弃渣提铁基础研究[J]. 钢铁研究学报. 1994(S1)倪文，马明生，王亚力等. 熔融还原法镍渣炼铁的热力学与动力学[J] .北京科技大学学报, 2009, 32(2):163-168.王晓民编译. 俄罗斯有色金属矿冶废料的综合利用[J].世界有色金属, 2009, (3):72-75.赵思佳，楚广，杨天足等. 从含镍废料中回收镍等有价金属研究进展[J].湿法冶金, 2008, 28(2):72-75.周琦，南雪丽，易育强等. 镍渣微晶玻璃制备及铁的回收利用[J].兰州理工大学学报, 2010, 36(5):14-18.卢学峰，南雪丽，郭鑫等. 利用废渣冶炼回收硅铁的研究[J].铸造技术, 2008, 29(12):1689-1691.刘宏雄. 关于镍渣提铁生产的高温热能利用的探讨[J].能源工程, 2007, (6):54-56.
|
| [1] |
ZHU De-qing1,TIAN Hong-yu1,PAN Jian1,LIAO Hui2,GUO Zheng-qi1,XUE Yu-xiao1. Comprehensive utilization status and progress of low-grade laterite nickel ore[J]. JOURNAL OF IRON AND STEEL RESEARCH , 2020, 32(5): 351-362. |
| [2] |
ZHANG Han-quan,GAO Wang-jie,HU Chao-jie,YU Hong. Phase transformation of iron in copper slag coalbased direct reduction[J]. JOURNAL OF IRON AND STEEL RESEARCH , 2020, 32(4): 311-321. |
| [3] |
LI Xiao-ming, LI Yi, XING Xiang-dong. Particle growth characteristics of metallic iron in direct coal-based reduction of nickel slag[J]. Iron and Steel, 2020, 55(3): 104-109. |
| [4] |
CHEN Wen1,LEI Ying2,HE Wen-hao3,LIAO Zhen-hong1,WANG Xin2. Iron increase and phosphorous reduction mechanism of oolitic hematite by microwave heating[J]. JOURNAL OF IRON AND STEEL RESEARCH , 2020, 32(1): 9-19. |
| [5] |
PAN Jian, LU Sheng-hu, ZHU De-qing, LUO Yan-hong, SHI Yue. Pilotscale research on integrated process of direct reduction of siderite and synchronous coal upgrading[J]. JOURNAL OF IRON AND STEEL RESEARCH , 2019, 31(4): 337-346. |
| [6] |
YANG Chun-shan， REN Ming-xin. Practice of waste dust mud treatment in Rizhao Steel[J]. Iron and Steel, 2019, 54(4): 83-91. |
|
|
|
|
2014, Vol. 49 
