Chemical Knowledge

Our plant can be divided into two parts:

In the front part, limestone is reacted with HCl solution. The resulting CaCl2 solution is purified by precipitation reaction with lime milk to remove mainly Mg-Ion and other metal-ions. The precipitants and all other solids are removed by sedimentation and filtration. The product is clear 33 – 34 % CaCl2 solution, which is the feed to the core part of the plant.

In the core part of the plant, the 34 % CaCl2 solution is concentrated in two falling film evaporators in series. The concentrate is fed to a granulation system in which CaCl2 granules with a typical size between 1 and 3 mm are produced. The granulation system has been designed to simultaneously dry and granulate in a spray fluidizer system, consisting of a fluid bed in which the feed is atomized by means of pressure nozzles.