Effect of binary basicity (CaO/SiO2) on selective reduction of lateritic nickel ore

Fajar Nurjaman; Khulud Saekhan; Fathan Bahfie; Widi Astuti; Bambang Suharno

doi:10.13133/2239-1002/17045

Effect of binary basicity (CaO/SiO₂) on selective reduction of lateritic nickel ore

Fajar Nurjaman, Khulud Saekhan, Fathan Bahfie, Widi Astuti, Bambang Suharno

Department of Metallurgical and Material Engineering

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

A selective reduction method is being developed in processing lateritic nickel ore to produce high nickel grade's ferronickel using low temperature or energy consumption. This research was carried out to study the effect of binary basicity (CaO/SiO₂) in the selective reduction process. The lateritic nickel ore containing 1.38% Ni and 38.2% Fe was used in this study. The reduction was performed at 1150°C for 60 minutes in a muffle furnace with the addition of sodium sulfate (additives), bituminous coal (reductant), and calcium oxide (basicity modifier). The optimum nickel grade in the selective reduction of lateritic nickel ore was obtained from the 0.1 of binary basicity, which was 6.14 %Ni, due to the breakage of iron and nickel in magnesium silicate bond into metallic iron and nickel. Further increasing of binary basicity decreased the nickel grade of ferronickel due to the formation of a high melting point phase.

Original language	English
Pages (from-to)	91-97
Number of pages	7
Journal	Periodico di Mineralogia
Volume	90
Issue number	2
DOIs	https://doi.org/10.13133/2239-1002/17045
Publication status	Published - 2021

Keywords

Additive
Binary basicity
Lateritic nickel ore
Reductant
Selective reduction

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.13133/2239-1002/17045

Cite this

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title = "Effect of binary basicity (CaO/SiO2) on selective reduction of lateritic nickel ore",

abstract = "A selective reduction method is being developed in processing lateritic nickel ore to produce high nickel grade's ferronickel using low temperature or energy consumption. This research was carried out to study the effect of binary basicity (CaO/SiO2) in the selective reduction process. The lateritic nickel ore containing 1.38% Ni and 38.2% Fe was used in this study. The reduction was performed at 1150°C for 60 minutes in a muffle furnace with the addition of sodium sulfate (additives), bituminous coal (reductant), and calcium oxide (basicity modifier). The optimum nickel grade in the selective reduction of lateritic nickel ore was obtained from the 0.1 of binary basicity, which was 6.14 %Ni, due to the breakage of iron and nickel in magnesium silicate bond into metallic iron and nickel. Further increasing of binary basicity decreased the nickel grade of ferronickel due to the formation of a high melting point phase.",

keywords = "Additive, Binary basicity, Lateritic nickel ore, Reductant, Selective reduction",

author = "Fajar Nurjaman and Khulud Saekhan and Fathan Bahfie and Widi Astuti and Bambang Suharno",

note = "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-413/UN2. RST/HKP.05.00/2020 for funding this research and and LIPI's science services for research laboratories 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-413/UN2. RST/HKP.05.00/2020 for funding this research and and LIPI{\textquoteright}s science services for research laboratories Publisher Copyright: {\textcopyright} This work is licensed under a Creative Commons Attribution 4.0 International License CC BY. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/",

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doi = "10.13133/2239-1002/17045",

language = "English",

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T1 - Effect of binary basicity (CaO/SiO2) on selective reduction of lateritic nickel ore

AU - Nurjaman, Fajar

AU - Saekhan, Khulud

AU - Bahfie, Fathan

AU - Astuti, Widi

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-413/UN2. RST/HKP.05.00/2020 for funding this research and and LIPI's science services for research laboratories 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-413/UN2. RST/HKP.05.00/2020 for funding this research and and LIPI’s science services for research laboratories Publisher Copyright: © This work is licensed under a Creative Commons Attribution 4.0 International License CC BY. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

PY - 2021

Y1 - 2021

N2 - A selective reduction method is being developed in processing lateritic nickel ore to produce high nickel grade's ferronickel using low temperature or energy consumption. This research was carried out to study the effect of binary basicity (CaO/SiO2) in the selective reduction process. The lateritic nickel ore containing 1.38% Ni and 38.2% Fe was used in this study. The reduction was performed at 1150°C for 60 minutes in a muffle furnace with the addition of sodium sulfate (additives), bituminous coal (reductant), and calcium oxide (basicity modifier). The optimum nickel grade in the selective reduction of lateritic nickel ore was obtained from the 0.1 of binary basicity, which was 6.14 %Ni, due to the breakage of iron and nickel in magnesium silicate bond into metallic iron and nickel. Further increasing of binary basicity decreased the nickel grade of ferronickel due to the formation of a high melting point phase.

AB - A selective reduction method is being developed in processing lateritic nickel ore to produce high nickel grade's ferronickel using low temperature or energy consumption. This research was carried out to study the effect of binary basicity (CaO/SiO2) in the selective reduction process. The lateritic nickel ore containing 1.38% Ni and 38.2% Fe was used in this study. The reduction was performed at 1150°C for 60 minutes in a muffle furnace with the addition of sodium sulfate (additives), bituminous coal (reductant), and calcium oxide (basicity modifier). The optimum nickel grade in the selective reduction of lateritic nickel ore was obtained from the 0.1 of binary basicity, which was 6.14 %Ni, due to the breakage of iron and nickel in magnesium silicate bond into metallic iron and nickel. Further increasing of binary basicity decreased the nickel grade of ferronickel due to the formation of a high melting point phase.

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