Extracting iron from sand - GIF

[cognitdiss]

If the sand is going to be used in downstream chemical processes or for uses such as filtration, or as an “aggregate” in various other substances (like non expanding grout), it may be desirable to have as little iron in the sand as possible. At the lab I’m currently working at they call this process of magnetically separating iron from sand or other small aggregate “beneficiation.“