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| HIGH ORDER SUB-REGULAR SOLUTION MODEL AND ITS APPLICATIONS IN THE CALCULATION OF COMPONENT ACTIVITIES OF MnO-SiO_2-Al_2O_3-CaO MOLTEN SLAG |
| ZHANG Xiaobing;JIANG Guochang;XU Kuangdi (Shanghai University; ShanghaiEnhanced Lab of Ferrometallurgy; Shanghai 200072) |
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Cite this article:
ZHANG Xiaobing;JIANG Guochang;XU Kuangdi (Shanghai University; ShanghaiEnhanced Lab of Ferrometallurgy; Shanghai 200072). HIGH ORDER SUB-REGULAR SOLUTION MODEL AND ITS APPLICATIONS IN THE CALCULATION OF COMPONENT ACTIVITIES OF MnO-SiO_2-Al_2O_3-CaO MOLTEN SLAG. Acta Metall Sin, 1997, 33(10): 1085-1093.
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Abstract a high order sub-regular solution modeI for predicting the component activities in a homogeneous region of a quaternary system was developed in the Shanghai Enhanced Lab of Ferrometallurgy, which is designated as SELF-SReM4. It is composed of some polynomials of excess mole free energies versus content variable. a group of parameters is included in the polynomials. along with the reliable known thermodynamic properties associating the homogeneous region the parameters can be evaluated. and then the component activities in that region are possible to be predicated. This paper is devoted to illustrate the applications of SELF-SReM4 for molten slag of MnO-SiO2-al2O3-CaO and its sub-ternary systems. The evaluated results were very close to those of slag-metal equilibrium experiments and the Chipman's and Pelton's results.
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Received: 18 October 1997
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