If the flotation agent is not cleaned thoroughly, it will remain on the surface of quartz sand, which may cause chemical interference to the subsequent application of quartz sand. PTMS magnetic separation Complete iron removal, the use of quartz insoluble in acid (except HF), Fe-containing impurity minerals can be dissolved by acid solution, can effectively remove the iron-containing minerals in quartz sand,
Fluorinated acid method in fluoride ion damages land erosion and ecological environment; no fluorinated acid method in strong acid corrosion dressing equipment, and potential environmental risks due to maintenance, service life and leakage problems caused by equipment corrosion problems. Fluoror-free and acid-free method is not easy to control in PTMS magnetic separation technology, which requires strict requirements for raw sand treatment and pulp environment, which makes it not widely used in industry.
PTMS magnetic separation For Fe, Al, Mg and other metal impurity minerals in quartz have a good removal effect, can get high purity quartz sand, can meet the harsh requirements of quartz sand purity in the high-tech field (SiO 2 content is greater than 99.99%, iron impurity content is very low).
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