TY - JOUR
T1 - Antimony in flash smelting simulation experiments. Part 1
T2 - The behaviour of a high-antimony concentrate (tetrahedrite)
AU - Jokilaakso, Ari Tapani
AU - Suominen, Risto Olavi
AU - Taskinen, Pekka Antero
AU - Lilius, Kaj Rainer
PY - 1989
Y1 - 1989
N2 - The removal of sulfur and antimony from a tetrahedritic concentrate containing 25.4% Cu, 21.5% Fe, 20.5% S and 13.8% Sb was studied using a laboratory scale laminar flow furnace. The gas preheating temperatures were 500-1100°C; the atmospheres N2, and N2 with up to 50% O2 and up to 5% SO2. Two narrow particle size fractions were used with x=20-38 μm and x=62-74 μm. Desulfurization was found to proceed continuously along with increasing gas preheating temperature and oxygen concentration. However, a minimum was found in the antimony removal curve. Chemical and morphological analyses of the oxidation products and a thermodynamic approach to the prevailing reaction system were used to determine details of the reaction mechanisms in the flash oxidation of antimony-bearing minerals.
AB - The removal of sulfur and antimony from a tetrahedritic concentrate containing 25.4% Cu, 21.5% Fe, 20.5% S and 13.8% Sb was studied using a laboratory scale laminar flow furnace. The gas preheating temperatures were 500-1100°C; the atmospheres N2, and N2 with up to 50% O2 and up to 5% SO2. Two narrow particle size fractions were used with x=20-38 μm and x=62-74 μm. Desulfurization was found to proceed continuously along with increasing gas preheating temperature and oxygen concentration. However, a minimum was found in the antimony removal curve. Chemical and morphological analyses of the oxidation products and a thermodynamic approach to the prevailing reaction system were used to determine details of the reaction mechanisms in the flash oxidation of antimony-bearing minerals.
UR - http://www.scopus.com/inward/record.url?scp=0024861952&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0024861952
SN - 0371-0459
VL - 18
SP - 50
EP - 60
JO - Scandinavian Journal of Metallurgy
JF - Scandinavian Journal of Metallurgy
IS - 2
ER -