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| AN INVESTIGATION OF THE SLAG-FORMING PROCESSES IN AN 11M~3 BLAST-FURNACE SMELTING PANG-CHIA-PAO IRON ORE |
| CHEN CHUIN-SHAN; CHOU SHENG-HSIANG(Institute of Metallurgy; Academia Sinica) |
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Cite this article:
CHEN CHUIN-SHAN; CHOU SHENG-HSIANG(Institute of Metallurgy; Academia Sinica). AN INVESTIGATION OF THE SLAG-FORMING PROCESSES IN AN 11M~3 BLAST-FURNACE SMELTING PANG-CHIA-PAO IRON ORE. Acta Metall Sin, 1964, 7(3): 221-228.
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Abstract From the results of thermodynamic calculations and petrographic examination, it has been found that in an 11 m~3 blast furnace smelting Pang-Chia-Pao iron ore, rankinite always forms as the primary crystalline phase, or in parallel with dicalcium silicate. Rankinite subsequently reacts with calcium oxide to form dicalcium silicate and reacts with fayalite to form wollastonite. These reactions can be represented as follows:2(2FeO. SiO_2)+3CaO=3CaO·2SiO_2+4FeO,3CaO·2SiO_2+CaO=2(2CaO·SiO_2),3CaO·2SiO_2+2FeO·SiO_2=3(CaO·SiO_2)+2FeO.The reduction of fayalite is also discussed.
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Received: 18 March 1964
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[5] 1952．
[6] Bowen, N. L., Schairer, J. G., Posnjak, E.: Am. J. Sci., 1933, 26, 193．
[7] Grerr, W. L. C.: Am. Mineralogist, 1932, 17, 135．
[8] Ferguson, J. B., Buddigton, A. F.: Am. J. Sci., 1920, 50, 131． |
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