工业硅精炼脱杂技术研究及应用  

Research and application on technology of impurity removal and refining in the production of industrial silicon

作　　者：包崇军[1] 李宗有 苏杰 卢国洪 杨妮[3] 罗文波[3] 甘胤 张忠益 张永平[1] 陈科彤[1] 

机构地区：[1]昆明冶金研究院,云南昆明650031 [2]云南永昌硅业股份有限公司,云南保山678300 [3]昆明理工大学冶金与能源工程学院,云南昆明650093

出　　处：《轻金属》2014年第4期49-52,共4页Light Metals

基　　金：云南省应用基础研究项目(编号:2013FZ156);云南省科技强省计划(2012AA007)

摘　　要：分析了现有工业硅精炼的几种方法，确定了本试验将采用合成渣富氧底吹联合精炼工艺。得到的最优工艺条件是：精炼温度1460～1520℃、精炼剂加入方式为均匀加入、沉清时间为5～10min，精炼时间为30～60min。铝钙脱除率分别由44．31％、90．32％提高到77．30％、95．74％。工艺稳定重现率高，能耗和成本均较低。Through analyzing of the existing several methods of industrial silicon refined, the refining process of oxygen bottom - blown joint synthetic slag is determined in this paper. By this experiment,the optimized process conditions is obtained that the refining temperature is 1460 - 1520℃, the refining agent should be uniformly added, the clear time is 5 - 10min, the refining time is 30 -60min. The removal rate of aluminum and calcium are increased from 44.31%, 90.32% up to 77.3%, 95.74%. The process is stability and energy consumption and production costs are low.

关 键 词：氧化精炼 工业硅 除杂 工业化 

分 类 号：TQ127.2[化学工程—无机化工]