For storing atmospheric CO2 in form of carbonates, the pH swing precipitation process showed that the anhydrite solution is suitable for the production of CaCO3. For the precipitation of the MgCO3, the concentration of the magnesium needs to be increased in both the anhydrite and talc solutions. In general, the experiments show that the extraction of calcium and magnesium from mineral particles can be described using a simple power law approach and can therefore be used for autonomous control for the carbonation process. As a process improvement, after precipitation and separation of all generated carbonates, NaOH and HCl can be recovered by direct electrosynthesis .