TY - GEN
T1 - Reduction of composite pellet containing indonesia lateritic iron ore as raw material for producing TWDI
AU - Kawigraha, Adji
AU - Soedarsono, Johny Wahyuadi
AU - Harjanto., Sri
AU - Pramusanto,
PY - 2013
Y1 - 2013
N2 - Blast furnace process is still an important process for producing pig iron. The process needs high grade iron ore and coke. The two materials can not be found easily. In addition blast furnace process needs cooking and sintering plant that produces polluted gases. Utilization of composite pellet for pig iron production can simplify process. The pellet is made of iron ore and coal. In addition the pellet can be made from other iron source and coal. This paper discusses the evolution of phase during reduction of composite pellet containing lateritic iron ore. Fresh iron ore and coal were ground to 140 mesh separately. They were mixed and pelletized. The quantity of coal added was varied from 0%, 20% and 29% of pellet weight. Pellets were heated with 10 °C/minute to 1100 °C, 1200 °C, 1300 °C and 1350 °C in a tube furnace and temperature was held during 10 minutes. Heated pellets were analyzed with XRD equipment. XRD of reduced pellets showed that iron phase change with coal and temperature. Lack of coal during heating results the re-oxidaton of iron phases. This process is due to replacement of reductive atmosphere by oxidative atmosphere.
AB - Blast furnace process is still an important process for producing pig iron. The process needs high grade iron ore and coke. The two materials can not be found easily. In addition blast furnace process needs cooking and sintering plant that produces polluted gases. Utilization of composite pellet for pig iron production can simplify process. The pellet is made of iron ore and coal. In addition the pellet can be made from other iron source and coal. This paper discusses the evolution of phase during reduction of composite pellet containing lateritic iron ore. Fresh iron ore and coal were ground to 140 mesh separately. They were mixed and pelletized. The quantity of coal added was varied from 0%, 20% and 29% of pellet weight. Pellets were heated with 10 °C/minute to 1100 °C, 1200 °C, 1300 °C and 1350 °C in a tube furnace and temperature was held during 10 minutes. Heated pellets were analyzed with XRD equipment. XRD of reduced pellets showed that iron phase change with coal and temperature. Lack of coal during heating results the re-oxidaton of iron phases. This process is due to replacement of reductive atmosphere by oxidative atmosphere.
KW - Composite pellet
KW - Iron ore reduction
KW - Lateritic iron ore
UR - http://www.scopus.com/inward/record.url?scp=84873044498&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/AMM.281.490
DO - 10.4028/www.scientific.net/AMM.281.490
M3 - Conference contribution
AN - SCOPUS:84873044498
SN - 9783037855928
T3 - Applied Mechanics and Materials
SP - 490
EP - 495
BT - 2nd International Conference on Mechanical Engineering, Materials and Energy, ICMEME 2012
T2 - 2nd International Conference on Mechanical Engineering, Materials and Energy, ICMEME 2012
Y2 - 26 October 2012 through 27 October 2012
ER -