Optimization Study of Calcium Leaching From Steelmaking Slag

钢铁研究学报(英文版), 2012, 19(4): 34-68.

Optimization Study of Calcium Leaching From Steelmaking Slag

^1, , ^2, , ^3, , ^4, , ^5, , ^6,

1.State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083,China／School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing,Beijing 100083, China

2.State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083,China／School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing,Beijing 100083, China

3.State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083,China／School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing,Beijing 100083, China

4.Ningloo Iron and Steel Co Ltd, Ningbo 315000, Zhejiang, China

5.State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083,China／School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing,Beijing 100083, China

6.State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083,China／School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing,Beijing 100083, China

关键词：浸出行为 , 炼钢炉渣 , 优化 , 钙 , 反应时间 , 最佳条件 , 炼钢渣 , 粒度

Optimization Study of Calcium Leaching From Steelmaking Slag

XU An-jun ^1, , ZHANG Hui-ning ^2, , YANG Yi ^3, , CUI Jian ^4, , HE Dong-feng ^5, , TIAN Nai-yuan ^6,

1.State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083,China／School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing,Beijing 100083, China

2.State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083,China／School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing,Beijing 100083, China

3.State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083,China／School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing,Beijing 100083, China

4.Ningloo Iron and Steel Co Ltd, Ningbo 315000, Zhejiang, China

5.State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083,China／School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing,Beijing 100083, China

6.State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083,China／School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing,Beijing 100083, China

Keywords： steelmaking slag , leaching yield , calcium content ,

In order to study calcium leaching behavior for the steelmaking slag,factors that influence the leaching yield have been optimized.The results show that granularity of the slag,liquid to solid ratio（in short for L/S）,temperature and reaction time have a significant effect on the leaching yield.The optimal conditions for leaching are determined as follows：1） the granularity at 75 μm,L/S at 100,temperature at 60 ℃;2） the granularity at 75 μm,L/S at 50,temperature at 40 ℃.Finally,the optimal leaching yield under these conditions is about 15%

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