MIVM对含V2O3多元熔渣体系组元活度的预测

doi:10.13228/j.boyuan.issn0449-749x.20150132

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Abstract In order to study the thermodynamic behavior and distribution of vanadium in Panzhihua’s converter， it is necessary to investigate the activity of each component in CaO-MgO-Al2O3-V2O3-SiO2 molten slag， according to the compositions of vanadium slag. The study applied the model of molecular interaction volume (MIVM) and its pseudo-multicomponent approach to predict the activities in slag system， such as Al2O3-CaO-MgO， CaO-SiO2-V2O3， and CaO-MgO-Al2O3-SiO2 slag system. The results of prediction were compared with the experimental data. The results showed that the predicted values of activity by MIVM pseudo-multicomponent approach were in good agreement with experimental data. In the Al2O3-CaO-MgO slag system， the predicted average relative error of Al2O3 activity was 15% by MIVM. In the CaO-SiO2-V2O3，CaO-MgO-Al2O3-SiO2 systems， the predicted average relative errors of the activity of V2O3 and SiO2 were 33% and 13% by MIVM. On this basis， the application of MIVM predicted the activities of each component in the slag system of CaO-MgO-Al2O3-V2O3-SiO2， and the predicted activity of V2O3 was compared with the experimental data. The results showed that the predicted values were in good agreement with experimental data， and both the positive deviation and the average relative errors were 44%. the V2O3 activity decreased with the increase of basicity.

Received: 25 March 2015 Published: 27 January 2016

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	LIU Qi-Cen
	LI Ya-Yo
	XUN Ying
	DAO Dong-Beng

Cite this article:

LIU Qi-Cen,LI Ya-Yo,XUN Ying等. Prediction of multi-component activities in molten slags containing V2O3 by model of MIVM[J]. Iron and Steel, 2016, 51(2): 28-37.

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http://www.chinamet.cn/Jweb_gt/EN/10.13228/j.boyuan.issn0449-749x.20150132 OR http://www.chinamet.cn/Jweb_gt/EN/Y2016/V51/I2/28

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