TY - GEN
T1 - Effect of quaternary basicity (CaO+MgO/Al2O3+SiO2) in selective reduction of limonitic nickel ore
AU - Nurjaman, Fajar
AU - Lamandasa, Cynta Immanuela
AU - Bahfie, Fathan
AU - Sari, Yuliana
AU - Astuti, Widi
AU - Ferdian, Deni
AU - Suharno, Bambang
N1 - Funding Information:
The authors would like thanks to the Ministry of Research and Technology/National Research and Innovation Agency for the doctoral dissertation grant with Contract No. NKB-326/UN2.RST/HKP.05.00/2021 for funding this research, and LIPI's science services for research laboratories.
Publisher Copyright:
© 2023 Author(s).
PY - 2023/5/9
Y1 - 2023/5/9
N2 - In this study, the quaternary basicity (CaO+MgO/Al2O3+SiO2) with modified MgO and CaO content in the selective reduction of limonitic nickel ore was investigated clearly. Limonitic nickel ore used in the process contains 1.38% Ni and 38.2% Fe. The anthracite coal and 10 wt% of Na2SO4 were used as reductants and additives, respectively. The reduction process conducted at 1150°C for an hour continued with the magnetic separation process to separate concentrate/ferronickel and tailing/impurities. The higher basicity with modified MgO resulted in lower nickel grade due to the formation of more magnesium silicate/forsterite, which could inhibit metal oxide reduction. The 0.3 of basicities with modified CaO addition showed the optimum condition due to its ability to break the silicate structure.
AB - In this study, the quaternary basicity (CaO+MgO/Al2O3+SiO2) with modified MgO and CaO content in the selective reduction of limonitic nickel ore was investigated clearly. Limonitic nickel ore used in the process contains 1.38% Ni and 38.2% Fe. The anthracite coal and 10 wt% of Na2SO4 were used as reductants and additives, respectively. The reduction process conducted at 1150°C for an hour continued with the magnetic separation process to separate concentrate/ferronickel and tailing/impurities. The higher basicity with modified MgO resulted in lower nickel grade due to the formation of more magnesium silicate/forsterite, which could inhibit metal oxide reduction. The 0.3 of basicities with modified CaO addition showed the optimum condition due to its ability to break the silicate structure.
UR - http://www.scopus.com/inward/record.url?scp=85160027533&partnerID=8YFLogxK
U2 - 10.1063/5.0131913
DO - 10.1063/5.0131913
M3 - Conference contribution
AN - SCOPUS:85160027533
T3 - AIP Conference Proceedings
BT - Advances in Metallurgy and Engineering Materials
A2 - Fatriansyah, Jaka Fajar
A2 - Ferdian, Deni
A2 - Putra, Wahyuaji Narottama
A2 - Yuwono, Akhmad Herman
A2 - Dhaneswara, Donanta
A2 - Sofyan, Nofrijon
PB - American Institute of Physics Inc.
T2 - International Meeting on Advances in Metallurgy and Materials 2020, i-MAMM 2020
Y2 - 16 November 2020 through 17 November 2020
ER -