Removal of Amorphous Carbon from SiC Powder using Flotation

被引：5

作者：

Mao, Fuwei ^{[1
]}

Wu, Dongchen ^{[1
]}

Zhou, Zhufa ^{[1
]}

Wang, Shumei ^{[1
]}

机构：

[1] Soochow Univ, Coll Chem Chem Engn & Mat Sci, Suzhou 215123, Peoples R China

来源：

SEPARATION SCIENCE AND TECHNOLOGY | 2014年 / 49卷 / 05期

关键词：

amorphous carbon; dispersion; flotation; removal; SiC powders; SILICON POWDER; LOSS SLURRY; WASTE; SEPARATION; RECOVERY;

D O I：

10.1080/01496395.2013.863337

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Impurities in SiC powders affect their properties greatly. This paper reports a method to remove amorphous carbon from SiC powders using dispersion and flotation. SiC and amorphous carbon particles were successfully separated using polyacrylamide (PEI) as dispersant in the SiC powders suspension. Then oleic acid was added as a flotation agent to gather the amorphous carbon which was finally removed. A new way to determine the amount of amorphous carbon content was put forward. In this way, 82wt% of the amorphous carbon particles were wiped out in 20wt% suspension when added to 1 wt% PEI and 0.3 wt% oleic acid.

引用

页码：792 / 796

页数：5

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