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1 results

  • Effects of grinding and dehydration on kaolin in a steam jet mill

  • Zhe Wang, Hong Li, Haiyan Chen, Juan Lv, Hao Leng, Junhui Xiao, Shuai Wang
  • Journal:
    Clay Minerals / Volume 56 / Issue 1 / March 2021
    Published online by Cambridge University Press:
    17 May 2021, pp. 75-84

  • Steam jet milling was applied for the first time to ultra-fine grind the filter cake (moisture content 23.80%) produced by a kaolin concentrator. The material was dehydrated and dried simultaneously during grinding, and the final ground sample met the moisture content requirement for powder products of <2%. The particle size of the ground kaolin samples decreased and the particle-size distribution was more concentrated, indicating that the steam jet milling was more effective for kaolin processing than the conventional dry grinding process. In addition, steam jet milling can improve the whiteness and decrease the crystal order of the samples, thus improving the kaolin properties in follow-up applications.