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
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
ժҪ 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 ��.
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 ��.
SHI Yu��min;DU Xing��hong;MENG Qing��jia;SONG Shi��wei;SUI Zhi��tong. Reaction Process of Chromium Slag Reduced by Industrial Waste in Solid Phase[J]. �й������ڿ���, 2007, 14(1): 12-0.
SHI Yu��min;DU Xing��hong;MENG Qing��jia;SONG Shi��wei;SUI Zhi��tong. Reaction Process of Chromium Slag Reduced by Industrial Waste in Solid Phase. Chinese Journal of Iron and Steel, 2007, 14(1): 12-0.
2007, Vol. 14 
