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中南大学学报(英文版)

Journal of Central South University

Vol. 17    No. 5    October 2010

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Comprehensive utilization of kaolin ore accompanying muscovite
YU Lian-xiang(喻连香)1, 2, WANG Hai-dong(王海东)1, QIU Guan-zhou(邱冠周)1, LIANG Dong-yun(梁冬云)2

1. School of Mineral Processing and Bioengineering, Central South University, Changsha 410083, China;
2. Mineral Processing Engineering Research Department, Guangzhou Research Institute of Non-ferrous Metals, Guangzhou 510651, China

Abstract:In light of the problems of low-quality and low degree of comprehensive utilization of Guangdong muscovite-type kaolin, the reasons affecting the quality of kaolin were found to be a small amount of maroon powdery goethite adhering to the surface of kaolin and minor muscovite affecting the firing whiteness of products. The ores were dealt with by using the new combined process of attritioning-classification-bleaching and flotation. The separation of kaolin from muscovite, quartz and feldspar can come true through the new process. The high-quality kaolin with the firing whiteness of 91% can be obtained, and the muscovite is comprehensively recovered by adopting the key technology of flotation. The content of high-purity muscovite produced is over 99%. The muscovite discarded by original process can be comprehensively recovered.

 

Key words: muscovite-type kaolin; flotation; goethite; desliming

中南大学学报(自然科学版)
  ISSN 1672-7207
CN 43-1426/N
ZDXZAC
中南大学学报(英文版)
  ISSN 2095-2899
CN 43-1516/TB
JCSTFT
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