Using chemical reaction, PTMS magnetic separation iron thoroughly, for quartz sand quartz iron mineral has a good removal effect, can effectively improve the purity of quartz sand, especially in removing Fe, Al, Mg impurities effect is obvious, can get purity of 99.99% high purity quartz sand or even high purity quartz sand, but its corrosive to equipment,
The use of chemical reagents such as strong acid is expensive and pollutes the environment. For the case of iron wrapped in quartz sand, iron impurities that can be dissolved by acid can be removed by PTMS magnetic separation, and the effect will be greatly reduced inside the mineral lattice. Within ten minutes of treatment, the iron removal rate can generally reach 46% -70%, mainly for the particle surface of the secondary iron film (thin film iron),
This kind of thin film iron is difficult to be separated by mechanical scrubbing method, and ultrasonic PTMS magnetic separation can be better handled, but the effect of iron removal has a certain limit, and due to the cost and other factors limit its less application in large-scale mineral processing, more suitable for high purity, small yield of the production field of higher requirements of quartz sand iron removal.
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