Purification of metallurgical grade silicon by slag and acid leaching treatment

被引：2
|
作者：
He, Falin [1 ]
Ren, Xianpei [2 ]
Cheng, Haoran [2 ]
Chen, Chao [2 ]
机构：
[1] Xiamen Univ, Coll Phys & Mech & Elect, Xiamen 361005, Peoples R China
[2] Xiamen Univ, Sch Energy Res, Xiamen 361005, Peoples R China
来源：
MATERIALS PROCESSING TECHNOLOGY, PTS 1-3 | 2012年 / 418-420卷
基金：
中国国家自然科学基金;
关键词：
Metallurgical grade silicon (MG-Si); slag; acid leaching treatment; REMOVAL;
D O I：
10.4028/www.scientific.net/AMR.418-420.1590
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
There are many methods of refining of metallurgical grade silicon (MG-Si). In this paper, the purification of MG-Si by slag and acid leaching treatment respectively is investigated. It is found that the main metallic impurities in MG-Si, such as Fe, Al, Ca, Ni, Ti, and nonmetallic elements, such as P, B, precipitated in Si-Ca phase, which is dissolved by acid easily. The influence of different ratio of slag/silicon upon removal rate of boron also be researched As well as, the effect of the cooling speed of the molten silicon on removal of P by acid treatment is researched and it indicated that the slower of cooling speed, the best effect removal of P is up to.
引用
收藏
页码：1590 / +
页数：2
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