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Removal of thin-film iron is a common problem. The method of removing film iron is mainly mixing scrubbing, ultrasonic cleaning and pickling methods. The agitation scrub is done by violent agitation of the blade and is usually used for PTMS Electromagnetic Separator before iron removal. This method can usually remove clay minerals and some loose oxides adhering to the timely surface.

PTMS magnetic separation

However, because the iron oxide films are thin and robust, this method is unlikely to remove them. If necessary, chemicals can be added. Quartz sand PTMS Electromagnetic Separator iron removal effect is good, but the cost is high, the technical requirements are more strict, harmful to the environment. However, to obtain a higher purity of quartz sand, chemical methods will inevitably be used in the future.

what is magnetic separation in Feldspar ？

Acid leaching and pickling usually used for PTMS Electromagnetic Separator before iron removal are common chemical treatment methods, which can be divided into cold acid treatment and hot acid treatment. The treatment by acid-dissolving minerals under static conditions is called acid leaching. Scrubing in acidic media can be called pickling. Acid leaching takes a considerable time, especially for cold acid dissolution.
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