Removal of iron from silica sand by surface cleaning using
01.07.2007Improved iron elimination can be obtained on processing natural silica sand with the ultrasound technology. Under the same conditions, the effect of iron elimination, E, is as high as 52.7% in 10 min, which is raised by 45.2% compared with the scrubbing technology. The effect of iron elimination in 1–5 min is equivalent to that with
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