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The slurry with a content of 60wt % of kaolin is whitened by PTMS magnetic separator
published date: 2023/8/9

water cooling electromagnetic separator for Kaolin

Take kaolin raw materials and appropriate amount of dispersant and add water to prepare a slurry with kaolin content of 60wt %, stir fully, and obtain a thin slurry with kaolin content of 20wt %; The dispersant was sodium silicate and the addition amount was 10mg/l. Add urea sulfur dioxide to the thin stock, and adjust the ph of the stock to 9.5; The stirring time was 30min and the reaction temperature was 40℃ ~ 90℃. PTMS magnetic separator can improve the whiteness of kaolin products.

PTMS magnetic separation


Among them, the amount of urea sulfur dioxide is 5% of the quality of kaolin sample. The ph of the slurry was adjusted to 3.5, and 5% oxalic acid of the kaolin sample was added. The reaction temperature was 90℃ and the stirring time was 30min. After filtration, washing and drying at 105℃, the kaolin product is obtained by PTMS magnetic separator after first whitening.

what is magnetic bead separation?


After the first whitened kaolin product is crushed, water is added to prepare a slurry with a concentration of kaolin and a content of 20wt %. Add sio2 with 20% kaolin mass and naoh with 60% kaolin mass at 90℃, stir and react for 60min, add h2so4 solution with 50% kaolin mass at a constant and slow speed, sink, filter, wash, and dry at 105℃. PTMS magnetic separator The whitened kaolin is obtained.
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PTMS magnetic separation 20230809754

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