The most common source of potash for fertilizers is potassium chloride (KCl), a natural saline compound which is soluble in water, and therefore ideal for use as a fertilizer and is often refered to as MOP (Muriate of Potash). In fact, over 90% of the global potassium is in the form of MOP, which currently corresponds to aproximately 60 million tonnes in the global market.
Potassium chloride is principally obtained from two minerals, sylvinite and carnallite, both present in the deposits that form part of our project. They are combinations of halite (sodium chloride – common salt), potassium chloride and inert materials (clays). In the case of carnallite, there is also magnesium chloride. The mineral is extracted from the ore using simple separation techniques widely employed the world over.