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| Reaction Process of Chromium Slag Reduced by Industrial Waste in Solid Phase |
| SHI Yu��min1,DU Xing��hong1,MENG Qing��jia2,SONG Shi��wei3,SUI Zhi��tong1 |
| 1. School of Materials and Metallurgy, Northeastern University, Shenyang 110006, Liaoning, China; 2. Beijing Sentch Environmental Technology Co Ltd, Beijing 100089, China;3. Beijing Zhong Sheng Tai Ke Environment Science and Technology Development Co Ltd, Beijing 100089, China |
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Abstract M, a particular industrial waste, was selected to detoxify chromium slag at a high temperature. The carbon remaining in M reduced Cr (��) of Na2CrO4 borne in the chromium slag to Cr (��) in the solid phase reaction, and its thermodynamics and kinetics were studied. The reduction process of Na2CrO4 by carbon produced CO, which was endothermic. Under the experimental condition, the apparent activation energy was 4��41 kJ��mol-1, the apparent order of reaction for Na2CrO4 was equal to one, and the partial pressure of CO was only 0��22 Pa at 1 330 ��.
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Received: 01 January 1900
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Hong-ming LONG,Qing-min MENG,Ping WANG,Tie-jun CHUN,Yong-lin YAO. Preparation of Chromium-iron Metal Powder from Chromium Slag by Reduction Roasting and Magnetic Separation[J]. Chinese Journal of Iron and Steel, 2015, 22(9): 771-776. |
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WANG Yi-ci,,ZHANG Jian-liang,WANG Yue-cong,LUO Guo-ping,. Solid Phase Synthetic Reaction of Sodium Pyroxene for Na2CO3-Fe(OH)3-H2SiO3 System[J]. Chinese Journal of Iron and Steel, 2013, 20(1): 21-25. |
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CHEN Jin;TIAN Peng-fei. Microstructure of Solid Phase Reduction on Manganese Oxide Ore Fines Containing Coal by microwave heating[J]. Chinese Journal of Iron and Steel, 2010, 17(3): 13-13. |
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2007, Vol. 14 
