-Potassium chloride occurs naturally as sylvite
-Extracted from sylvinite or salt water
-Manufactured by crystallization from solution, flotation or electrostatic separation from suitable minerals
-By-product of the making of nitric acid from potassium nitrate and hydrochloric acid
Definitions:
-Crystallization: natural or artificial) process of formation of solid crystals from a uniform solution. Crystallization is also a chemical solid-liquid separation technique.
-Flotation: chemical method for the separation of mixtures
Relies upon differences in the surface properties of different particles to separate them.