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| Experimental Study on Removal Arsenic in iron ore with arsenic sintering process |
| Lu Qing Shuhui Zhang |
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Abstract The physicochemical properties of iron ore with arsenic in South of China was analyzed by chemical analysis, XRD, high power microscope, EDS, XPS and atomic absorption spectrometry method. The effects of various factors on arsenic removal in sintering process were studied and the optimal technique parameters were obtained. The results show that the mineral of iron ore with arsenic in South of China mainly composes of magnetite and gangue, in which arsenic with 0.282% mass content exists as FeAsS and few as As2S3. The oxidation and thermal decomposition reaction of FeAsS occurs in sintering process. Under low oxidizing atmosphere the arsenic removal rate of iron ore with arsenic in South of China increase when the reaction temperature increases, the reaction time extends, or the coke powder content rises. The optimal removal arsenic process parameter is: reaction temperature 1050~1100℃, reaction time 8~15min, and coke powder content 6%.
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Received: 13 July 2009
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| [1] |
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| [2] |
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| [3] |
ZHOU Ming-shun, WANG Yi-dong, ZHAO Dong-ming, HAN Hong-liang,LI Xian-chun, LU Li-ming. Development on sintering technologies with high proportion of magnetite concentrates[J]. Iron and Steel, 2020, 55(5): 1-9. |
| [4] |
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| [5] |
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| [6] |
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2010, Vol. 45 
