凝固精炼、造渣精炼提纯冶金硅的研究进展

发布时间：2018-06-22 01:22

本文选题：冶金法 + 杂质　；参考：《功能材料信息》2017年03期

【摘要】：冶金法集合多种提纯手段逐步降低冶金级硅中杂质含量,是制备太阳能级多晶硅的有效手段,显示了巨大的成本压缩空间,发展潜力巨大。为了进一步降低冶金法成本,国内外学者针对冶金硅提纯过程中存在的长流程、低提纯效率等关键问题展开了大量的研究工作,采用了多种有效手段强化冶金硅净化过程中杂质的去除效果,提升了多晶硅的提纯效率。主要以杂质的分凝和氧化性质为基础,重点综述了有关凝固精炼与造渣精炼过程中杂质去除的最新研究进展,并对冶金法下一阶段的研究重点和发展前景进行了展望。
[Abstract]:Metallurgical method is an effective means to reduce the impurity content in metallurgical grade silicon gradually. It is an effective means to prepare solar grade polysilicon. It shows huge cost compression space and has great potential for development. In order to further reduce metallurgical cost, scholars at home and abroad are aiming at the long process, low purification efficiency and so on. A lot of research work has been carried out on the key problem, and a variety of effective methods are used to strengthen the removal of impurities in the process of metallurgical silicon purification, and the purification efficiency of polysilicon is enhanced. The latest research progress on impurities removal in the process of solidification refining and slag refining is mainly summarized, and the latest research progress on the removal of impurities in the process of solidification refining and slag making is reviewed. The research focus and development prospect of the next stage of metallurgy are prospected.
【作者单位】：北京科技大学冶金与生态工程学院;
【基金】：国家自然科学基金资助项目(51604023,51334002,51274034,51404019) 中国博士后科学基金资助项目(2015M580985)
【分类号】：TN304.12

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