The common iron removal methods of quartz sand are magnetic separation and pickling. Iron is magnetic, and they can be separated by mechanical magnetic separation. The main component of quartz sand can be silica, which does not react with common acids, such as hydrochloric acid and sulfuric acid. However, as a more active metal, iron can react with acid and can be removed by acid leaching. At the same time, the residual mechanical iron in quartz sand can be removed by magnetic separation after crushing. The residual iron oxide in magnetic separation quartz sand can be effectively removed after pickling. Want to know more about how to remove iron oxide from quartz sand, you can pay attention to @ quartz sand pickling. Read a lot of information about quartz sand pickling.