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

页码：1590 / +

页数：2

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