How is potash produced?
Potash is a term widely applied to naturally occurring potassium salts and the commercial products derived from them. The most common method of producing potash is from ore that is mined deep underground by conventional mining methods. The mined ore is sent to a processing mill on the surface by conveyor and hoist. The salt (NaCl) and clays are separated from the potash (KCl) in a process called flotation. Solution mining is another method of extracting potash from underground mines but it requires a lot of energy to recover the potash. Some potash is also obtained from salt lake brines like the Dead Sea by natural evaporation in solar ponds.
