MATERIALS & HANDLING


SAFE SMART P


How a reagent from Nasaco tackles pyrite depression &


yrite is one of the most common sulphide minerals found in a variety of geological settings. It contains


valuable materials such as gold and lithium. However, extracting these precious metals can be challenging,


THE PYRITE FLOTATION PROCESS Pyrite flotation is the process of separating pyrite from other minerals in ore, improving the quality of the minerals. The flotation process contains many steps, beginning with ore preparation, where the ore


32 www.engineerlive.com Pyrite depression


changes the surface properties of the


minerals and enables the separation of


valuable materials from tailings


containing pyrite and other materials is crushed to reveal individual particles of minerals. The ore is then mixed with water to form a slurry, and depressants are added to selectively depress pyrite, thereby preventing it from floating alongside the other materials.


PYRITE DEPRESSION Pyrite depression changes the surface properties of the minerals, enabling the separation of valuable materials from tailings. Various reagents can be used to depress pyrite. High Ph levels, for example, can do so by separate it from


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