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| Analysis of phase and distribution of sulfur in KR desulfurization slag |
| XU Jian-fei, WANG Xin-hua, HUANG Fu-xiang, LIU Chun-yang |
| （School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083,China） |
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Abstract The phase and distribution of sulfur in KR desulfurization slag was analyzed by quenching experiment to investigate the desulfurization mechanism of KR slag . It was found that KR slag was located in the four component system of CaO-SiO2-CaF2-CaS, which was consisted of the single phase of CaS、the multi-phase of CaO-CaF2-CaS and the multi-phase of CaO-SiO2-CaF2-CaS, and the sulfur content in CaS phase was apparently higher than the other two phases. Further, the sulfur in slag mainly existed in the form of calcium sulphide according to statistical analysis of area fraction for CaS phase and the total sulfur content in slag. The sulfur content in slag could be thus added by increasing the area fraction of CaS phase.
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Received: 21 February 2014
Published: 12 January 2015
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2015, Vol. 50 
