Zero-Waste Recycling Method for Nickel Leaching Residue by Direct Reduction–Magnetic Separation Process and Ceramsite Preparation
- 5 Downloads
In this paper, a novel process for beneficiation of metallic iron from nickel leaching residue and preparation of ceramsite from tailings by direct reduction–magnetic separation process is reported. The optimal conditions for direct reduction process were 1100 °C roasting temperature, 120 min duration, and 30 wt.% reductant dosage. The reduced sample was benefited from low-intensity magnetic separation. This process yielded an iron concentrate of 82.32 wt.% grade and 78.05 wt.% recovery. Hence, this metallic iron could be used as a feedstock for the steel industry. Tailings of the magnetic separation procedure were used to prepare ceramsite. Optimal conditions for preparing ceramsite were: 55% magnetic separation tailings, 20% silica, 15% fly ash, 10% charcoal, a 1150 °C roasting temperature, and a holding time of 30 min. The ceramsite properties met the requirement of CJ/T299-2008 National Standard. These results suggested that developing this solid waste would have environmental and economic benefits.
KeywordsZero-waste recycling Nickel leaching residue Direct reduction Ceramsite preparation
The authors wish to express their thanks to the Natural Science Foundation of China (NO.5157041410) for the financial support of this research.
Qiang Zhao conducted the experimental work and prepared the manuscript; Jilai Xue directed the research work and modified the manuscript; Wen Chen participated in the design of the research work at different stages.
Compliance with Ethical Standards
Conflicts of interest
The authors declare no conflict of interest.
- 3.Ma B Z, Wang C Y, Yang W J, Yin F, and Chen Y Q, Miner Eng J 9 (2013)107.Google Scholar
- 4.Ma B Z, Wang C Y, Yang W J, Yang B, and Zhang Y L, Miner Eng J 5 (2013)152.Google Scholar
- 5.Elliott R, and Pickles C A, High Temp Mater Processes J 9 (2017) 836.Google Scholar
- 6.Loveday B K, Miner Eng J 7 (2008)534.Google Scholar
- 7.Macasek F, Kufcakova J, Rajec P, Kopunec R, Jakabsky S, Lovas M, and Hredzak S, Chem Papers-Chemicke Zvesti J 3 (2004)163.Google Scholar
- 8.Zhu D Q, Zhou X L, Luo Y H, Pan J, and Bai B, High Temp Mater Processes J 10 (2016)1031.Google Scholar
- 14.Zhu D Q, Luo Y H, Pan J, and Zhou X L, High Temp Mater Processes J 2 (2016)187.Google Scholar
- 16.Yu W, Wen X J, Chen J G, Kuang J Z, Tang Q Y, Tian Y C, Fu J L, Huang W Q, and Qiu T S, Miner J 2 (2017)2.Google Scholar
- 18.Zhou X L, Zhu D Q, Pan J, and Wu T J, ISIJ Int J 7 (2015)1347.Google Scholar
- 19.Lei C, Yan B, Chen T, and Xiao X M, J Clean Prod J 8 (2017) 74.Google Scholar
- 22.Kumar R, Das P, Beulah M, Arjun H R, and Ignaitus G, J Adv Manuf Syst J 3 (2017)276.Google Scholar
- 23.Gayana B C and Chandar K R, Adv Concr Constr J 3 (2018) 222.Google Scholar
- 24.Manjarrez L, and Zhang L Y, J Mater Civ Eng J 9 (2018) 33.Google Scholar
- 25.Chen Q S, Zhang Q L, Fourie A, and Xin C, J Environ Manag J 10 (2017)20.Google Scholar
- 26.Kinnunen P, Ismailov A, Solismaa S, Sreenivasan H, Räisänen M L, Levänen E, and Illikainen M, J Clean Prod J 10 (2017)635.Google Scholar
- 27.Wu H Q, Zhang T, Pan R J, Chun Y Y, Zhou H M, Zhu W X, Peng H Z, and Zhang Q, Constr Build Mater J 5 (2018)368.Google Scholar
- 28.Sun M T, Yang Z M, Lu J, Fan X L, Guo R B, and Fu S F, J Chem Technol Biotechnol 2 (2018)2408.Google Scholar
- 30.Wen S H, Chen L, Li W Q, Ren H Q, Li K, Wu B, Hu H D, and Xu K, Sci Rep J 6 (2018)2.Google Scholar
- 31.Jing Q X, Wang Y Y, Chai L Y, Tang C J, Huang X D, Guo H, Wang W, and You W, Trans Nonferrous Met Soc China J 5 (2018)1053.Google Scholar