Magnetic separation process

The burned quartz particles are placed in cold water to cool down quickly, in order to remove the bubbles, water lines and some wrapped impurities inside the mineral, so that the mineral crack, which is conducive to PTMS magnetic separation iron removal. Quartz calcination water quenching treatment, also known as thermal crushing, refers to the quartz at high temperature calcination will occur crystal transformation (α quartz β quartz β scale quartz), so that the volume of the increase, crystal original defects become more serious,

PTMS magnetic separation

 
A method in which the volume of the crystal suddenly decreases and the internal stress at the crystal defect increases rapidly, causing the crystal to rupture at the defect. The crystal breaks at the defect, so that the impurities in the inclusions and the impurities in the cracks in the original quartz are exposed to the particle surface, which can be easily removed by PTMS magnetic separation during acid treatment.

what is magnetic separation in Quartz？

 
Using wet grinding or dry grinding makes ultrafine quartz sand with particle size of 5-50 μ m; quartz sand grinding usually adopts two sections of one section or lattice ball mill + overflow ball mill, and the second section forms a closed cycle with spiral grader or hydraulic cyclone to ensure that the grinding fineness is suitable for PTMS magnetic separation selection.
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