CAJ | 학술논문

冶金法太阳能级多晶硅技术具有能耗低、成本低和环境友好等特点，正逐步取代投资大、成本高的化学法而成为全球研究的热点。硼是工业硅中最难去除的非金属杂质之一，本文阐述了工业硅的生产过程和吹气炉外精炼除硼的原理，综述了国内外工业硅炉外氧气、湿氢、湿氧、湿二氧化碳以及吹气－熔渣联合精炼等工艺技术，并对本课题组湿氧精炼除硼的研究进行了重点介绍，分析了吹气精炼过程硅的损失问题，最后指出吹气－熔渣联合法是冶金法炉外精炼的发展方向。
야금법태양능급다정규기술구유능모저、성본저화배경우호등특점，정축보취대투자대、성본고적화학법이성위전구연구적열점。붕시공업규중최난거제적비금속잡질지일，본문천술료공업규적생산과정화취기로외정련제붕적원리，종술료국내외공업규로외양기、습경、습양、습이양화탄이급취기－용사연합정련등공예기술，병대본과제조습양정련제붕적연구진행료중점개소，분석료취기정련과정규적손실문제，최후지출취기－용사연합법시야금법로외정련적발전방향。
The metallurgical method of solar grade silicon,with the characteristics of low energy consumption, low cost and friendly environment,is displacing the chemical methods with the high investment and the high cost and being paid close attention.Boron is one of the most difficult impurities to be removed from silicon. The production of industrial silicon and the principle of gas blowing secondary refining technique are elabora-ted.The research progress and some results of secondary refining techniques for boron removal using oxygen, wet hydrogen,wet oxygen,wet carbon dioxide and united gas blowing and slag refining are reviewed in detail, respectively.The achievement of boron removal using wet oxygen acquired by our team is introduced as a high-light.The problem of silicon loss in gas blowing refining process is pointed out.At last,it is put forward that the united gas blowing-slag refining technique is the development direction for boron removal from industrial silicon.