TY - JOUR
T1 - Effect of the first thermal stage temperature and retention time in two-stage thermal upgrading of low-grade nickel lateritic ore
AU - Shofi, A.
AU - Ramadini, C.
AU - Samuel, R.
AU - Nurjaman, F.
AU - Suharno, B.
AU - Subagja, R.
N1 - Publisher Copyright:
© Published under licence by IOP Publishing Ltd.
PY - 2019/2/26
Y1 - 2019/2/26
N2 - Selective reduction process and magnetic separation of nickel lateritic ore wereconducted through the two-stage thermal upgrading processwith the addition of sodium sulphate and sodium chloride as the additives agent. Effect of the first thermal stage temperature has been investigated at various of temperature of 500, 600 and 700°C for 60 minutes and continued with the reduction process at temperature of 1050°C for 30 minutes. The mineralogical composition of the reduced samples was performed by XRD analysis. The optimum temperature was 500°C, which produced a concentrate withnickel grade of 2.98% and iron recovery of 40.17%. Effect of the first thermal stageretention time also has been investigated at temperature of 500°C for 30, 60, and 90 minutes, and continued with the reduction process at temperature of 1150°C for 60 minutes. The optimum temperature was 90 minutes, which produced a concentrate with 3.69% nickel grade, and 90.61% nickel recovery.
AB - Selective reduction process and magnetic separation of nickel lateritic ore wereconducted through the two-stage thermal upgrading processwith the addition of sodium sulphate and sodium chloride as the additives agent. Effect of the first thermal stage temperature has been investigated at various of temperature of 500, 600 and 700°C for 60 minutes and continued with the reduction process at temperature of 1050°C for 30 minutes. The mineralogical composition of the reduced samples was performed by XRD analysis. The optimum temperature was 500°C, which produced a concentrate withnickel grade of 2.98% and iron recovery of 40.17%. Effect of the first thermal stageretention time also has been investigated at temperature of 500°C for 30, 60, and 90 minutes, and continued with the reduction process at temperature of 1150°C for 60 minutes. The optimum temperature was 90 minutes, which produced a concentrate with 3.69% nickel grade, and 90.61% nickel recovery.
UR - http://www.scopus.com/inward/record.url?scp=85062915275&partnerID=8YFLogxK
U2 - 10.1088/1757-899X/478/1/012002
DO - 10.1088/1757-899X/478/1/012002
M3 - Conference article
AN - SCOPUS:85062915275
SN - 1757-8981
VL - 478
JO - IOP Conference Series: Materials Science and Engineering
JF - IOP Conference Series: Materials Science and Engineering
IS - 1
M1 - 012002
T2 - 2nd Mineral Processing and Technology International Conference, MineProceT 2018
Y2 - 1 November 2018 through 1 November 2018
ER -