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微波场在冶金级硅酸浸提纯过程的应用

发表时间:2009-06-30  浏览量:1852  下载量:673
全部作者: 于站良,谢克强,马文会,周阳,杨斌,戴永年
作者单位: 昆明理工大学材料与冶金工程学院;昆明理工大学真空冶金国家工程实验室
摘 要: 为降低冶金级硅粉中金属杂质的含量,比较了微波场、球磨活化、恒温水浴等不同反应条件对冶金级硅中金属杂质去除效果的影响。实验结果表明:微波场作用下杂质Fe,Al,Ca,Ti的去除效率分别为83%,73%,93%和54%;球磨活化作用下杂质Fe,Al,Ca,Ti的去除效率分别为78%,69%,83%,46%;恒温水浴作用下Fe,Al,Ca,Ti的去除效率分别为72%,54%,67%,38%.微波场作用效果要明显优于球磨活化和恒温水浴的作用效果,且微波场作用时间少于另外两者。并探讨了微波场湿法和球磨活化湿法提纯冶金级硅的原理。
关 键 词: 冶金物理化学;提炼冶金;冶金级硅;微波场;球磨活化;恒温水浴
Title: Application of microwave field in acid leaching process of metallurgical grade silicon
Author: YU Zhanliang, XIE Keqiang, MA Wenhui, ZHOU Yang, YANG Bin, DAI Yongnian
Organization: Faculty of Materials and Metallurgical Engineering, Kunming University of Science and Technology;National Engineering Laboratory of Vacuum Metallugy, Kunming University of Science and Technology
Abstract: To decrease metallic impurity residue in metallurgical grade silicon, the influences of different reaction conditions (microwave field, planetary mill and aqueous thermostat) on removal effect of the metallic impurities in the metallurgical grade silicon. The experimental results showed that the removal efficiencies of iron, aluminum, calcium and titanium in the metallurgical grade silicon under microwave field were 83%, 73%, 93% and 54%, respectively; the removal efficiencies of iron, aluminum, calcium and titanium in the metallurgical grade silicon under planetary mill were 78%, 69%, 83% and 46%, respectively; and the removal efficiencies of iron, aluminum, calcium and titanium in the metallurgical grade silicon under aqueous thermostat were 72%, 54%, 67% and 38%, respectively. The effect of the microwave field was evidently better than those of the planetary mill and aqueous thermostat, and the reaction time under the microwave field was shorter. The principles of hydrometallurgical purification of the metallurgical grade silicon under microwave field and planetary mill were discussed respectively.
Key words: physical chemistry of metallurgy; extractive metallurgy; metallurgical grade silicon; microwave field; planetary mill; aqueous thermostat
发表期数: 2009年6月第12期
引用格式: 于站良,谢克强,马文会,等. 微波场在冶金级硅酸浸提纯过程的应用[J]. 中国科技论文在线精品论文,2009,2(12):1229-1233.
 
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