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Which minerals can be separated with low-intensity magnetic separators?

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mineral processing Schematic diagram of a flotation separation cell.

In the context of mineral processing, low-intensity magnetic separators are used to isolate strongly magnetic minerals from gangue minerals. The specific minerals that can be effectively separated using this method include:

Magnetite
Franklinite
Pyrrhotite

These minerals are characterized by their strong magnetic properties, which allow them to be attracted and removed from non-magnetic materials when subjected to the magnetic fields generated by low-intensity devices. For optimal results, the feed particles in this process typically fall within a size range of 0.1 to 1 millimetre.1

In contrast, high-intensity magnetic separators are required for minerals with weaker magnetic responses, such as limonite, siderite, and various iron-bearing manganese, titanium, and tungsten ores.1