TY - GEN
T1 - Direct reduction of limonitic laterite nickel ore with variation type of reducing agents to fe, ni content and recovery by using coal-dolomit bed method
AU - Pintowantoro, Sungging
AU - Abdul, Fakhreza
AU - Zulyansyah, Dede
N1 - Publisher Copyright:
© 2020 Trans Tech Publications Ltd, Switzerland.
PY - 2020
Y1 - 2020
N2 - The increasing demand for stainless steel and the scarcity of sulfide nickel ore affect the increase of laterite nickel ore processing. One of the processes that has been proven can be applied to process laterite nickel ore is direct reduction. In the direct reduction, the reduction atmosphere was adjusted by controlling the volume of CO and CO2 from carbon source materials, such as coal, charcoal, and green cokes. This research aims to analyze the effect of reducing agents type on nickel limonitic nickel briquettes on Ni and Fe content and recovery of Ni and Fe. The direct reduction process was conducted at 14000C for six hours. The EDX test was conducted to analyze the elemental composition of the product, especially for Ni and Fe content. On the other hand, the XRD can be applied to analyze the compound formed in the product Greencoke will produce the highest Ni content (15.23%). The highest Ni recovery (96%) was obtained by the addition of green coke reducing agent. On the other hand, the highest Fe recovery (18.8%) was obtained by the addition of coal reducing agent.
AB - The increasing demand for stainless steel and the scarcity of sulfide nickel ore affect the increase of laterite nickel ore processing. One of the processes that has been proven can be applied to process laterite nickel ore is direct reduction. In the direct reduction, the reduction atmosphere was adjusted by controlling the volume of CO and CO2 from carbon source materials, such as coal, charcoal, and green cokes. This research aims to analyze the effect of reducing agents type on nickel limonitic nickel briquettes on Ni and Fe content and recovery of Ni and Fe. The direct reduction process was conducted at 14000C for six hours. The EDX test was conducted to analyze the elemental composition of the product, especially for Ni and Fe content. On the other hand, the XRD can be applied to analyze the compound formed in the product Greencoke will produce the highest Ni content (15.23%). The highest Ni recovery (96%) was obtained by the addition of green coke reducing agent. On the other hand, the highest Fe recovery (18.8%) was obtained by the addition of coal reducing agent.
KW - Charcoal
KW - Coal
KW - Direct reduction
KW - Green coke
KW - Limonitic nickel ore
UR - http://www.scopus.com/inward/record.url?scp=85096424264&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/KEM.867.32
DO - 10.4028/www.scientific.net/KEM.867.32
M3 - Conference contribution
AN - SCOPUS:85096424264
SN - 9783035716870
T3 - Key Engineering Materials
SP - 32
EP - 40
BT - Mechanical Engineering
A2 - Suwarno, null
A2 - Djanali, Vivien
A2 - Mubarok, Fahmi
A2 - Pramujati, Bambang
PB - Trans Tech Publications Ltd
T2 - 4th International Conference on Mechanical Engineering, ICOME 2019
Y2 - 28 August 2019 through 29 August 2019
ER -