The Fe2O3 content of kaolin decreased by 50% after the high gradient of PTMS Electromagnetic Separator
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High efficiency iron removal process steps of kaolin: simply purify the kaolin raw ore, PTMS Electromagnetic Separator get the magnetic separation raw material; the magnetic separation raw material is prepared into a mixed slurry with solid content of 15%, and then the magnetic separation raw material mass is 2%. After sodium hexametaphosphate slurry stirring for 20min, 325 mesh wet screen;
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Using the slurry for high gradient PTMS Electromagnetic Separator, control the magnetic field strength of the high gradient magnetic separator is 1.0T and the slurry flow rate is 1.0 cm/s. Select the slurry through the high gradient magnetic separation machine, and the amount of alum is 6% of the quality of concentrate slurry, after adding the concentrate slurry to alum flocculation, filtration, drying, packaging, get the magnetic concentrate;
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The resulting magnetic concentrate concentrate was calcined to obtain calcined kaolin and calcined for whiteness test. The whiteness of calcined kaolin (magnetic concentrate) was tested, the whitening was 91.3%, the Fe2O3 content was reduced from 1.27% before PTMS Electromagnetic Separator to 0.405%, the iron removal rate was 68%, and the content of Ti02 content was reduced from 0.29% to 0.253%.
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