碳热还原歧化法制备太阳能级硅的实验研究(英文)  

Investigation of Production Solar Grade Silicon by Carbothermic Reduction and Disproportionation Method

作　　者：马文会[1] 吕东[1] 杨斌[1] 戴永年[1] 

机构地区：[1]昆明理工大学真空冶金国家工程实验室∥材料与冶金工程学院,云南昆明650093

出　　处：《中山大学学报（自然科学版）》2009年第S2期76-78,共3页Acta Scientiarum Naturalium Universitatis Sunyatseni

基　　金：国家自然科学基金资助项目(50674050);教育部新世纪优秀人才支持计划基金资助项目(NECT-07-0387)

摘　　要：以经预处理的废石英和木炭为原料,在高温下通过碳热还原反应生成高纯SiO气体,SiO发生歧化反应生成高纯的硅和高纯SiO_2,将SiO_2用HF酸分离出去,经ICP检测获得的硅为太阳能级硅。该新工艺具有低能耗、环保和工艺流程简单等优点。Using silica wastes and charcoal wastes which have been pretreated as raw material,high purity SiO gas can be formed by carbothermic reduction at high temperature,and SiO gas will be disproported into high purity silicon and silicon dioxide,then solar grade silicon can be prepared by separating silicon dioxide in HF acid via ICP method measurement.The new technique has some advantages such as low energy consumption,environmental protection,simple production flow.

关 键 词：太阳能级硅 废石英 碳热还原 歧化 

分 类 号：TN304.12[电子电信—物理电子学]