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Modern Mining ›› 2019, Vol. 35 ›› Issue (01): 96-101.

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Research Progress of Kaolin Deironing and Whitening

Guo Chunlei1,2,3,Wang Weiwei1,2,3,Jin Hailong1,Li Qiang1,2   

  1. 1.Baotou Research Institute of Rare Earths;2.State Key Laboratory of Rare Earths Resources Research and Comprehensive Utilization in Bayan Obo;3.China North Rare Earths Group High Technology Co,.Ltd.
  • Online:2019-01-25 Published:2019-03-19

Abstract: It summarized the iron element occurrence state in kaolin,introduced the fundamental and research progress of deironing and whitening methods,and indicated that the iron element occurrence state in kaolin is the intrinsic factor of deciding whitening methods.Only adopting polytechnic deironing combination methods,the better deironing effects can be obtained.

Key words: Kaolin, Deironing and whitening, Physical method, Chemical method, Microbiological method